baber/WOPTO huggingface dataset:
Patent GB-679366-A (GB)
Title: Improvements in and relating to the carbonylation of mixed olefines
IPC: C07C29/16
Filed: 1949-01-26
Abstract: Mixtures of olefines are catalytically carbonylated by feeding a higher olefine or higher olefines with CO and H2 to a reaction zone and so injecting a lower olefine or lower olefines into the zone that the time of contact of the lower olefine or olefines with the catalyst is less than that of the higher olefine or olefines, so that the partly converted higher olefine or olefines acts or act as the liquid medium for the carbonylation of the lower olefine or olefines. Higher olefines are those which under the reaction conditions are substantially in the liquid phase and lower olefines those which under similar conditions are in the vapour phase to an extent detrimental to efficient carbonylation.  Inert liquid media, e.g. paraffins containing 12 carbon atoms may be present.  The catalyst may be initially in the reaction chamber or fed in with the reactants.  In continuous operation the lower olefine may be injected at a point or points intermediate the higher olefine inlet and the outlet from the reaction chamber and thus di-isobutene may be treated with lower olefines at 250 atmos. and 100-170 DEG  C.  In batch operation the lower olefines are injected after reaction with the higher olefines has been started.  The products may be hydrogenated or separated.  Cobalt catalysts are preferred, e.g. as a soluble salt such as the naphthenate, as a carbonyl, or as a solid as a slurry of cobaltthoria-kieselguhr or supported on a carrier.  In examples, di-isobutene containing dissolved cobalt naphthenate is fed to the bottom of a tubular reactor at 0.25 litres per litre of total reactor free space per hour at 155-175 DEG  C. and 250 atmos. a gas mixture of 3 : 1 vols. of H2 : CO being fed in at the same point at 500 litres per litre of reactor space per hour and after two hours (1) propene and (2) ethene are injected at a point halfway up the reactor at 0.325 litres of liquid and 120 litres of gas respectively per litre of the upper half of the reactor free space per hour, the products being hydrogenated and finally separated from constituents other than alcohols by an azeotropic distillation with methanol (cf. Specification 678,166, [Group III]), followed by a simple distillation to separate alcohols.  It is stated that a mixture of ethene and propene may be used as lower olefine feed.
Patent GB-699514-A (GB)
Title: Means for economising in the use of boot polish or like material
IPC: B65D25/02
Filed: 1950-01-27
Abstract: 699,514. Accessories for shoe polish tins &c. MANTON, H. E. Jan. 29, 1951 [Jan. 27, 1950], No. 2133/50. Class 66. To economize in the use o: shoe polish &c. a perforatec disc 10 which may be flanged a 12 is placed on the surface o: the polish in the tin, the shoe brush or pad being pressed thereon.
Patent GB-1260724-A (GB)
Title: Process for simultaneous dehydrogenation and hydroxylation of steroids
IPC: C12P33/00
Filed: 1969-01-14
Abstract: 1,260,724. Microbial conversions of steroids. E. R. SQUIBB & SONS Inc. 14 Jan., 1969 [25 Jan., 1968], No. 2222/69. Heading C2U. 1,2-Dehydrosteroids having a hydroxy group in at least one of the 11, 16, 17 and 21-positions are prepared from 1,2-saturated steroids having a replaceable hydrogen atom in at least one of the 11, 16, 17 and 21 positions by 1,2-dehydrogenation with an Arthrobacter species (or enzymes thereof) and simultaneous hydroxylation with a hydroxylating microorganism (many specified) in a mixed culture. Any 21-acyloxy group may be hydrolysed concurrently. All specified products are of the pregna-1,4-diene-3,20-dione series.
Patent GB-574090-A (GB)
Title: Improvements relating to aircraft surfaces intended to sustain aerodynamic pressures
IPC: B64C3/26
Filed: 1942-02-19
Abstract: 574,090. Aircraft structures. VICKERSARMSTRONGS, Ltd., and WALLIS, B. N. Feb. 19, 1942, No. 2233. [Class 140] [Also in Groups IX and XXXIII] Aircraft structures of the kind having a skeleton framework covered with material capable of withstanding external air pressures and of transmitting forces due thereto to said framework are constructed by covering the framework with an airtight web or sheet incorporating integrally within itself a system of closely spaced "warp" elements of steel or other substance of high tensile strength and elasticity and such that when said web or sheet is in the flat said "warp" elements are uniformly straight and coplavar throughout their length, the web or sheet being stretched longitudinally over the frame members to form a developable surface with said warp elements constituting the generators thereof. The covering may be woven from stainless high tensile steel warps or other high tensile elements and cotton or other textile wefts and may be coated with polyvinyl chloride &c. to render it airtight. The covering may also consist entirely of the steel &c., elements of warplike form being embedded in a matrix of polyvinyl chloride &c. Strengthening strips of tape or plastic film may be secured to the under surface. The covering F may be tensioned and held secured to transeverse rails 24 superposed on the basal structures of the wing, fuselage &c. by clamping battens 242 screwed into recesses 241. Pure rubber latex and synthetic rubber solutions may also be used for coating. Specifications 21604/12 and 1909/13, [both in Class 4], are referred to.
Patent GB-264550-A (GB)
Title: Improvements in and relating to the manufacture of vitreous masses
IPC: C08F22/14
Filed: 1925-10-26
Abstract: 264,550. Hope, E. Oct. 26, 1925. Lenses. - The partially polymerized esters, particularly the dialkyl esters, of itaconic acid are moulded into lenses or other objects for optical use, whereafter the polymerization is completed; polymerization is effected by heat, and filling and/or colouring material may be added to the partially polymerized ester or to the initial material. Specification 254,668, [Class 2 (iii), Dyes &c.], is referred to.
Patent GB-550205-A (GB)
Title: Improvements in and relating to the treatment of the surface of paper and the like
IPC: D21G3/02
Filed: 1942-02-21
Abstract: 550,205. Glossing or finishing paper. TRIST, A. R. Feb. 21, 1942, No. 2324. [Class 96] The surface of paper j, Fig. 6, e.g. coated or sized paper, is smoothed or finished by a heated, trailing, blade m, Figs. 6 and 7, of a metal, e.g. steel . which will not blacken the paper, and having a rounded working surface which presses the paper j against a resilient covering e of natural or artificial rubber &c. of a roller d which may be cooled as by internal watersprays. The blade m may be laminated, or slotted, to increase, or reduce its stiffness; it may be lagged with asbestos cloth, and heated to 350-500‹F. by a thermostatically-controlled electric resistance; it may be counter-weighted or spring-loaded and may be set at an adjustable angle. More than one blade may be used in succession and the roller d may be substituted by an endless belt &c.
Patent GB-657793-A (GB)
Title: Improvements in or relating to crystal contact devices
IPC: H01L29/00
Filed: 1949-01-27
Abstract: 657,793. Crystal detectors. GENERAL ELECTRIC CO., Ltd., JAMES, E. G., and LINDELL, A. O. E. Jan. 27, 1949, No. 2343. [Class 40 (v)] A crystal contact device of the type adapted for connection to a coaxial line is suitably dimensioned to match the characteristic impedance of the line. As shown, the device is housed in a metal cylinder 1 in which are secured coaxial with the cylinder two discs 2 of insulating material which support the crystal 3 and contact wire 4 respectively. The discs are spaced by a metal collar 5, which is an easy fit in the cylinder, and are secured to the collar by synthetic resin plastic which hermetically seals the device. Each disc is provided with a central conductor 6 passing through a hole 7, the projecting portions 8 co-operating with the inner conductors of the coaxial lines, and having dimensions relative to the internal diameter of the cylinder 1 so that this portion has a characteristic impedance substantially matched to that of the lines. Similarly the diameter of the studs passing through the hole 7 in the discs is chosen having regard to the dielectric constant of the material of the discs, to match this portion to the adjoining portions of the device, and the internal diameter of collar 5 co-operating with the contact wire 4 is also arranged to provide the required characteristic impedance. In an alternative arrangement, Fig. 2 (not shown), the contact wire 4 is mounted on a metal rod passing through a hole in the stud 6 so that it may be adjusted before securing by solder. The device may be modified by making one of the discs of conducting material, the projection of the stud from this disc no longer being necessary, and connecting the coaxial line only to the other end of the cylinder. The collar may be integral with the cylinder or may be of insulating material, at least the inner surface having a metallic coating connected to the cylinder. Specification 635,690 is referred to.
Patent GB-1020368-A (GB)
Title: Improvements in expansible self-anchoring bolt devices
IPC: F16B13/06
Filed: 1963-01-18
Abstract: 1,020,368. Anchor-bolts; screw-sockets. L. BOLIVIA. Jan. 18, 1963 [Jan. 24, 1962], No. 2412/63. Heading F2H. An anchor for a bolt 13 has a multipart shell, e.g. in four identical parts 1 of cast iron or antimonial lead held together by an annular spring 2, expanded, when the bolt 13 and its nut (not shown) are tightened, by the wedging action of an expander 7, with a tapered surface 8 fitting in a corresponding recess in the shell. Triangular-sectioned projections 9 on the surface 8 locate in corresponding gaps formed by notches at the edges of the shell parts 1. The bolt-head 12 or the nut is held against rotation in a pocket 10 in the expander 7 (which may be in two halves), the pocket being polygonal in section and tapered or stepped in form to accommodate different sizes of bolthead or nut. A supplementary expander cone may be used at the trailing end of the anchor, where there is a short tapered ridge 4, Fig. 4, on each shell part 1. At the leading end there are annular ridges 5.
Patent GB-1162195-A (GB)
Title: Improvements in or relating to Measuring Devices for use in Printing Machines
Inventor: VOLLRATH KARL-HANS
IPC: G01B5/14
Filed: 1968-01-17
Abstract: 1,162,195. Linear measuring apparatus. VEB DRUCKMASCHINENWERKE LEIPZIG. Jan. 17, 1968, No.2568/68. Heading G1M. A device for measuring the thickness of a covering 17 on a drum 7 comprises a guide bar 3 along which a measuring block 6 is movable, the bar 3 being provided with side members 4 for contacting bearing rings 5 of the drum 7 and the measuring block 6 being provided with a scanning pin 8 which is movable radially of the axis of the drum 7 and is arranged to make contact with the covering 17. The position of the scanning pin 8 relative to the block may be indicated by a scale 12 on the pin which is viewed through a microscope 13. A wire 9 may be arranged to pass through the block 6 parallel to the axis of the drum 7 and zero setting is effected by observing the wire through a microscope 12 and by an adjustment 15 which moves the block 6 relative to the wire 9.
Patent GB-588168-A (GB)
Title: Improvements in body moulding garments
IPC: A41C1/02
Filed: 1945-02-01
Abstract: 588,168. Corsets. SMITH, H. L. J., and LA RESISTA CORSET CO. Feb. 1, 1945, No. 2597. [Class 141] A girdle has incorporated therein a band portion of one-way stretch material formed in two parts each extending round the side of the body from centre front to centre back and being higher in the front to constrict the abdomen than at the back where pressure is applied to the buttocks. As shown, each side portion 13 of the garment comprises a central band 13a which is stretchable longtitudinally and passes diagonally from the back. It is of greater elastic strength than the band portions 13b and 13c above and below it. These outer band portions may have one or two way stretch and may be woven integrally with the band 13a or stitched to it. The side portions are secured together by tapes at the centre front seam 14 and the centre back seam 16. A front panel 10 of non-elastic material is stitched at 15 over the portions 13, a somewhat similar panel being applied to the back. To draw the garment into the waist, V-shaped cuts 18 and 20 are made from the top of the side portions, one being closed by a sliding clasp fastener 19 and the other being bound by a tape 21. The upper and lower edges of the garment have elastic binding tape.
Patent GB-489503-A (GB)
Title: Improvements in tracks for electrically driven toy vehicles
IPC: A63H18/02
Filed: 1937-01-29
Abstract: 489,503. Toys. BRITAINS, Ltd., and SMALLWOOD, G. E. Jan. 29, 1937, No. 2683. [Class 132 (iii)] A track for electrically driven toy motor-cars and other road vehicles comprises a flexible nonconductive strip provided with flexible parallel current conveying rails so that the track can be curved laterally when laid on a flat or an undulating supporting surface. In the construction shown in Figs. 1 and 2 a rubber strip a has a series of staggered spaced b, b<1> terminating in punched holes d, d<1>, and is provided with parallel channels f, f<1> receiving the rails formed of helical conductive wires or of flexible soft metal cores c<2>, c<3> wound with helical conductive wires c<4>, c<5>. The base of the strip is provided with adhesive tape or pins for attachment to a support. In the construction shown in Fig. 5, a flexible strip a<1> is formed of diagonally loosely woven braid or fabric to allow of lateral curvature and is provided with rails k, k<1> formed as in Fig. 1, and connected to the strip a<1> by ties at intervals. The rails convey current from a supply source to the driving motor of the toy vehicle by shoes or grooved pick-up wheels, the road wheels running on the support to which the flexible strip a or a<1> is attached. The track can be used with toy motor-cars of the kind described in Specification 488,439, in which grooved pick-up wheels are mounted on lever mechanism connected to the steering wheels of the car. Three rails may be used in conjunction with a reversing switch.
Patent GB-560862-A (GB)
Title: Means for driving an electric generator on board a ship
IPC: H02K49/02
Filed: 1942-03-03
Abstract: 560,862. Driving arrangements for electric, generators; propelling ships. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET, and ECK, T. March 3, 1942, No. 2781. A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 4, 1942. [Class 35] [Also in Group XXXIII] Generators 5 on board ship are driven from the propeller shaft 1 by means of speed - increasing toothed gear transmission 3 and an electrodynamic speedequalizing slip coupling 4. In this way fluctuations of voltage due to pulsations of speed of the driving shaft are avoided. The electrodynamic coupling may have d.c. excited poles 41 and a short-circuited secondary 42. By breaking the magnetizing circuit of the coupling when the prime-mover speed is reduced or the prime-mover is stopped, the generator is disconnected from its driving means. The generator may be provided with a fly-wheel to keep it running for a short period after disconnection of the coupling. According to the Specification as open to inspection under Sect. 91, a spring coupling or an hydraulic coupling may be used; this subject-matter does not appear in the Specification as accepted.
Patent GB-1379301-A (GB)
Title: Slide projectors
IPC: G03B23/14
Filed: 1972-01-20
Abstract: 1379301 Optical projection apparatus EASTMAN KODAK CO 20 Jan 1972 [22 Jan 1971] 2818/72 Heading G2J A slide projector able to receive a stack of slides 46 includes two members 104, 106, the member 106 having a section 178 which pushes out the bottom slide from the stack upon the depression of the member 104. Beneath the stack is a chute into which the dislodged slide falls to reach the gate 82. The member 104 has a projection 114 which upon the depression of the member 104 removes a slide from the gate to fall into a receptacle. As shown the member 106 is moved by a pin (108) Fig.8 (not shown) on member 104 engaging slot 110. Thus as the member 104 is depressed (manually or by a motor) the portion 178 dislodges the bottom slide and in combination with ledge 174 carries it clear of the stack 46. When the ledge 174 passes beneath shoulder 96, the slide cannot follow and falls down to the gate 82. The slide is prevented from falling out through the bottom of the gate by the forked ends 186 (184 not visible) on the member 106. This is necessary because springs (94a), 94b are retracted by cams 112. When the member 104 is allowed to rise the projection 114 does not engage the slide in the gate due to the action of block 182 (see Fig.5), the springs (94a), 94b are released to grip the slide and the member 106 returns to the Fig.4 position. The portion 178 does not engage the stack 46 on the return movement since on the forward movement it is lifted by rollers 166 engaging the top surface of guides 194, 196 and on the return movement the rollers 166 engage the bottom surfaces of the guides 194, 196. On subsequent depression of the member 104 the sequence of events is as before and, as the next slide falls to the gate 82, the slide in the gate is ejected by projection 114. The supply of slides may be held in the stack 46 by one half of a storage container 26, the other half being receiving receptacle. This container is the subject of Specification 1379302. Reference has been directed by the Comptroller to Specification 1329195
Patent GB-833615-A (GB)
Title: Organopolysiloxanes
IPC: C08G77/00
Filed: 1958-01-28
Abstract: The invention comprises siloxanes of the formula [XR2Si(CH2)2SiR2]2O, where each R is an aryl, alkyl or cycloalkyl radical and X is CF3CH2CH2-, CF3CH3CH2 <FORM:0833615/IV (a)/1> , a cyclobutyl radical of the formula C4H3F3Cl- or <FORM:0833615/IV (a)/2> and copolymers thereof with 20 to 99.9 mol. per cent of siloxane units of the formula ZmSiO 4-m/2 where each Z is a monovalent hydrocarbon or halogenated hydrocarbon radical, and m is 0, 1, 2 or 3.  The silylethylsiloxanes are preferably made by reacting silanes of the formula <FORM:0833615/IV (a)/3> , where Y is a halogen or alkoxy radical, with a vinyl Grignard reagent (prepared as disclosed in Compt. rend. 239, 1510, 1811: ibid., 240, 314, 440, 631) and reacting the resulting vinyl silane with a symmetrical tetraorganodisiloxane, e.g. H.R2.SiOSiR2H, in the presence of a platinum catalyst. In another method, either the silane X.R2Si.CH=CH2 is reacted with the silane R2.H.SiY or the silane CH2=CH.Si.R2Y is reacted with X.SiR2H to give the silylethylsilane XR2Si.CH2.CH2.SiR2Y which is then hydrolysed to the corresponding disiloxane. Examples are given. Uses.-As lubricants and for coatings, elastomers and moulding resins. Specification 760,201 is referred to.
Patent GB-524317-A (GB)
Title: Improvements in or relating to agitators for suction cleaners
IPC: A47L9/04
Filed: 1939-01-27
Abstract: 524,317. Vacuum cleaners. HOOVER, Ltd. Jan. 27, 1939, No. 2854. Convention date, Jan. 28, 1938. [Class 8 (i)] The rotary agitator of a vacuum cleaner is hollow and provided with beaters 4 and an internal brush, the bristles of the brush being helically disposed and projecting through a slot in the agitator body. To compensate for wearing of the bristles, the brush shaft 5 is rotatably mounted on a link 114 pivoting freely on a counter shaft 113 which carries at its ends gear wheels respectively engaging gear wheels 115, 118 secured to the agitator body and the brush shaft. The body is driven by a belt and is mounted on stub shafts carrying stops to limit the position of the brush shaft, while allowing the bristles to project so far as to brush a hard floor with which the beaters do not come into contact.
Patent GB-592243-A (GB)
Title: Improvements in or relating to steam-air heat-power plants
IPC: F01K23/10
Filed: 1945-02-05
Abstract: 592,243. Air-heating furnaces. MASCHINENFABRIK OERLIKON. Feb. 5, 1945, Nos. 2912 and 2913. Convention dates, Jan. 5, 1944. [Class 64 (i)] [Also in Group XXVI] The output of the air turbine in steam and air power plants of the type claimed in Specifications 562,155 and 567,595 is increased by mixing hot gases with the combustion gases after the latter have passed through the boiler. The boiler 1, Fig. 1, has an air heater 12 by means of which the air from the blower 14 is heated before use in the turbine 13. To increase the temperatures on the gas side of the air heater without an increase of the temperatures through the boiler, hot gases are taken from the furnace 3 through the pipe 19 and mixed with the combustion gases after the latter have passed through the boiler 1. A valve 20 is used to control the temperatures. In a modification, the air for the air turbine is heated by a separate combustion chamber and the temperatures on the gas side of the air heater are controlled by mixing with the gases from this combustion chamber gases taken from the duct leaving the boiler of an adjacent boiler plant. Specification 569,441, [Group XXVI], also is referred to.
Patent GB-138607-A (GB)
Title: Improvements in or relating to hand or rifle grenades
IPC: F42B30/04
Filed: 1920-01-30
Abstract: 138,607. Aktieselskabet Perkussion, (Assignees of Brondby, F. N.). Feb. 1, 1919, [Convention date]. Barrels; protecting from dust and rain.-A muzzle-attachment for rifle grenades comprises a cylindrical body J<2> connected by a cup-shaped part J to a socket J<1> adapted to be fitted to the muzzle of a rifle. A cover J<3> may be provided.
Patent GB-965770-A (GB)
Title: Improvements in or relating to electric motor-driven shaft control arrangements
IPC: B66C13/24
Filed: 1961-01-25
Abstract: 965,770. Control of D.C. motors. NATIONAL STANDARD CO. Jan. 25, 1961 [Jan. 25, 1960], No. 2958/61. Heading H2J. Relates to a control system for an electric motor driving a winder in apparatus for forming beads on rubber tyres. Closure of start switch 42 energizes relay 45 whereby circuits are completed for coil 48 in counter 47 and for relays 29, 30. This closes the motor circuit and disconnects adynamic braking resistance from the armature. Coil 48 controls the closure of contacts 51 which are then maintained in the closed position as count winding 50 is subsequently energized and de-energized during each revolution of the winder shaft to register the count in counter 47. When the last revolution commences contacts 54, 55 are closed as cam follower 22 is raised. During the last revolution, contacts 54, 55 are opened to de-energize winding 50 and simultaneously open contacts 51. This interrupts the motor circuit and connects the braking resistor in parallel therewith. The closure of contacts 54, 56 maintains brake solenoid 36 energized until the cam-follower 22 is again raised to introduce mechanical braking after the elapse of a preset interval to halt the shaft rotation. Timing means for varying the duration of the preset interval comprises a cam assembly including a plurality of cam plates rotatably adjustable with respect to each other to vary the effective circumferential length of high and low camming surfaces, Fig. 6 (not shown). In another embodiment, the timer 47 is dispensed with and is replaced by a driver chain having a lug for operating a switch to introduce the dynamic braking operation, Fig. 5 (not shown). Specification 862,938 are referred to.