baber/WOPTO huggingface dataset:
Patent GB-824460-A (GB)
Title: Hydrocarbon polymers; processes for preparing said polymers; and compositions containing said polymers
IPC: C08F297/08
Filed: 1957-08-28
Abstract: A lubricating oil composition comprises a major proportion of a hydrocarbon lubricating oil and a minor proportion of a hydrocarbon polymer prepared by polymerizing one or more alpha-olefins having 10-22 carbon atoms in the molecule, alone or with one or more alpha-olefins having 5-8 carbon atoms in the molecule at below 80 DEG C. in the presence of a Ziegler type catalyst, the ratio of 10-22 carbon atom olefins to 5-8 carbon atom olefins when used being such that 5-15% of the alkyl side chains in the polymer will contain 3-6 carbon atoms.  Specified lubricating oils are mineral oils and hydrocarbon lubricants from olefin polymerization, the hydrogenation of cracked wax olefins, and wax isomerization and they may be either waxy lubricating oils or partially or completely dewaxed hydrocarbon oils.ALSO:A mixture of alpha-olefins having 10-22 carbon atoms in the molecule is obtained by polymerizing an alpha-olefin having less than 10 carbon atoms in the molecule at a temperature between 100 DEG  and 250 DEG  C. and under a pressure above 500 lbs. per sq. inch in the presence of the reducing component of a Ziegler catalyst followed by removal of compounds containing less than ten carbon atoms in the molecule from the reaction product.  Specified reducing components are organo-aluminium compounds such as aluminium triethyl or triisobutyl, zinc alkyls and Grignard compounds.  Ethylene is the preferred starting material, and distillation the specified separating process.  The reaction may be carried out in the presence of inert hydrocarbon diluents but this is not essential.ALSO:A hydrocarbon polymer is prepared by polymerizing one or more alpha-olefins having 10-22 carbon atoms in the molecule, alone or with one or more alpha-olefins having 5-8 carbon atoms in the molecule, at a temperature below 80 DEG  C. in the presence of a Ziegler-type catalyst, the ratio of alpha-olefins of 10-22 carbon atoms to those of 5-8 in the polymerization mixture in the second case being such that 5-15% of the alkyl side chains in the resulting polymer will contain 3-6 carbon atoms.  The polymerization may be carried out by polymerizing a "10-22" alpha-olefin, adding another "10-22" alpha-olefin and continuing the polymerization.  The polymerization may be carried out in the presence of a saturated aliphatic, cycloaliphatic or aromatic liquid hydrocarbon diluent but this is not essential. The mixture of alpha-olefins having 10-22 carbon atoms may be prepared by polymerizing an alpha-olefin having less than 10 carbon atoms at between 100 DEG  and 250 DEG  C. and under a pressure above 500 pounds per square inch in the presence of a component B (e.g. organo-aluminium compounds) of a Ziegler catalyst followed by the removal of compounds containing less than ten carbon atoms in the molecule from the reaction product; such lower alpha-olefins may be those having less than six carbon atoms, e.g. ethylene.
Patent GB-1461440-A (GB)
Title: 2,5-substituted tetrahydrofurans and their production
IPC: C07D307/16
Filed: 1974-06-19
Abstract: 1461440 6 - Oxo - octyl - tetrahydrofuranyloctoic acid trimethylsilyl ester GRINDSTEDVAERKET AS 19 June 1974 27137/74 Heading C3S [Also in Division C2] The compound of the Formula X is prepared by reacting the compound of the Formula IX with hexamethyldisilazane and trimethylchlorosilane in the presence of pyridine.
Patent GB-1075469-A (GB)
Title: An air classifier
IPC: B07B4/02
Filed: 1964-07-01
Abstract: 1,075,469. Pneumatic separators. KLOCKNER-HUMBOLDT-DEUTZ A.G. July 1, 1964 [Aug. 2, 1963], No. 27171/64. Heading B2H. In an air classifier comprising a vertical chamber 1, e.g. of rectangular cross-section, through which a current of air flows from the bottom upwards and into which the material to be classified is fed through an opening 6 in one side of the chamber, an inclined grid 2 is arranged below the opening 6 and extends to the opposite side of the chamber where a discharge aperture 10 for the coarse particles is provided substantially at the level of the grid, the grid forming one or more gaps (5), Fig. 2 (not shown) extending in the same direction as the grid itself. The material to be classified is fed from a hopper 9 via a bucket wheel 8 which also serves as an air seal. The coarse particles are discharged through a conduit 11 provided with a bucket wheel 12 also forming an air seal. The air is fed at 3 and evacuated at 4. The grid bars are tear-shaped in cross-section so that the gaps between them widen towards the top. The width of the gaps, the grain size of the material to be classified and the air velocity in the vicinity of the grid are adapted to one another in such a manner that the course particles do not fall through the gaps and are not carried away by the air current but remain in suspension in the gaps or just above the grid and move towards the discharge aperture 10. The fine particles are carried by the air towards the aperture 4. In a modification, Fig. 3 (not shown), the material to be classified is introduced with the air through a bent pipe (13). A pivotable guide plate (15) guides that part of the stream, which due to the effect of centrifugal force in the bend (14) contains the material, towards the inlet opening (6') and the other part of the stream, i.e the bulk of the air, into the air inlet (3') below the grid (2').
Patent GB-1042524-A (GB)
Title: Draining devices for discharging liquid or slurry from a vessel
IPC: B01J8/00
Filed: 1963-07-09
Abstract: 1, 042, 524. Evaporators; crystallizing sugar. SOC FIVES LILLE-CAIL. July 9, 1963 [July 10, 1962], No. 27215/63. Heading B1B. A cylindrical evaporator, such as is used for concentrating sugar syrup to obtain crystals, has a longitudinal opening 2 in the lower part, below which is a chamber 3 provided with a valve 7; and one or more rotatable plates 8 are mounted on shaft 9 in the longitudinal opening, the arrangement being such that there are small clearances 10 between the bearing surfaces 12 of the plates and the seats 11 of the opening. The evaporator is heated by calandria 14. When the syrup is being boiled, the plates are horizontal and currents of syrup circulate between chamber 3 and the evaporator through clearances 10. Fresh feed is introduced into chamber 3 through pipes (not shown). When boiling has been completed, the plates are turned on shaft 9 through a quarter of a revolution, the vacuum seal of the evaporator is broken, and the valve 7 is opened, whereupon the massecuite is rapidly discharged from the apparatus.
Patent GB-485530-A (GB)
Title: Improvements in and relating to light-sensitive devices
IPC: H01L21/12
Filed: 1937-10-08
Abstract: 485,530. Depositing metals by electric discharge. BRITISH TH014ISON-HOUSTON CO., Ltd. Oct. 8, 1937, No. 27403. Convention date, May 29. [Class 41] [Also in Group XL] A photo-voltaic cell comprises a selenium layer 2 on a base 1 of metal such as iron or nickel, with a composite metal film 6 on the selenium applied by sputtering from an electrode constituted by a plurality of metals, preferably cadmium and platinum. The cell may be made as follows. After coating the base 1 with selenium, in the manner described in Specification 485,529, [Group XL], it is placed in a bell jar containing argon at low pressure. A cathode is suspended directly over the selenium-coated disc, the cathode being formed as a disc of cadmium 3, Fig. 4, having platinum inserts 4, the total surface areas of the two metals being preferably the same. The anode may be the base holding the bell jar. A sputtering current of 50 to 100 milliamperes is produced, preferably in short flashes to avoid over-heating the selenium. To remove condensable vapours from the discharge, a flask of liquid air is provided in the sputtering chamber. When a composite coating of cadmium and platinum of the required very slight thickness has thus been deposited on the selenium it is lacquered, and the disc is laid aside to age. Various modifications of the construction of the cathode used in the sputtering process are described. For example, it may consist of a platinum disc with cadmium inserts ; or these two metals may be alloyed together and formed into a cathode or deposited on a receiver to form an electrode in any suitable manner. A contact ring 8 may be provided, as described in Specification 485,528, near the periphery of the disc, before or after the composite layer is applied. Specification 439,774, [Group XL], also is referred to.
Patent GB-1355747-A (GB)
Title: Bussing block
IPC: H01R31/02
Filed: 1972-06-13
Abstract: 1355747 Two part couplings MALLORY TIMERS Ltd 13 June 1972 [1 July 1971] 27579/72 Heading H2E A connecting block comprises a base 10 with terminal-receiving stations 40 and intervening islands 42 separated from each other by channels 55, 56 in the base adapted to receive bussing strips 52. The base is adapted to fit into the cover (16) of the terminal block (12) of a timer switch (Fig. 1, not shown), terminals on the block being received within respective apertures 46 which together with two islands 44, 44<SP>1</SP> having slots 32 form the stations 40. Each strip 52 includes fingers 54 which extend into respective cavities 45 between the islands 44, 44<SP>1</SP> to press resiliently against the terminals 26; the fingers 54 may be integral with or formed separately from the bars which are held in channels 55, 56 by heat staking (48). Blocks may be stacked within the cover (16) to provide for additional connections between the terminals.
Patent GB-747254-A (GB)
Title: Improvements in pneumatic cores for use in the casting of hollow or recessed concrete units
IPC: B28B7/32
Filed: 1952-11-03
Abstract: 747,254. Pneumatic cores for casting concrete units. MATHEWS C. B. and AMBROSE, J. G. Feb. 3, 1954 [Nov. 3, 1952], No. 27607/52. Class 87(2) A pneumatic core comprises a steel top plate 12 and laterally spaced bottom plates 18, 19 to which are welded respectively pipes 14, 15, 16 and pipes 22. The pipes have longitudinal slots 17 taking flexible side walls 23. 24, 25, 26 made of "Rexine'' (Registered Trade Mark) which are fixed to rods 27 and reinforced by steel plates 33. Within walls 23, 24 and 25, 26 are inflatable rubber cores 30 which on deflation from an inflated position cause lower plates 18, 19 to turn about the outer rods 27 from the dotted line position 18', 19<1> to the full-line position 18, 19. The core may be used to form a cavity of, e.g., 7 or 8 inches width and 25 feet in length. For a smaller cavity a modification is used in which the walls 24 25 are attached to two separate pipes welded to the top plate 12 and spaced on the inner side of pipes 15, 16. Specifications 582,587 and 674,986 are referred to.
Patent GB-1126628-A (GB)
Title: Blood volume replacement medium
Inventor: SCHLOTAN WERNER
IPC: A61K38/00
Filed: 1967-06-15
Abstract: 1,126,628. Isotonic fish gelatin solutions. FARBENFABRIKEN BAYER A.G. 15 June, 1967 [18 June, 1966], No. 27710/67. Heading A5B. A sterile blood-volume replacement medium comprises a pyrogen-free aqueous solution of fish gelatin, isotonic with blood. The solution of fish gelatin may be rendered pyrogen-free by heating to a temperature of from 80‹C,- 130‹C: at a pH of 9-12.
Patent GB-683786-A (GB)
Title: Improvements in or relating to variable pitch propellers
IPC: B64C11/38
Filed: 1950-11-14
Abstract: 683,786. Variable-pitch propellers. UNITED AIRCRAFT CORPORATION. Nov. 14, 1950. [Nov. 23, 1949] No. 27784/50. Class 114. A lock is provided to prevent reduction of pitch if the operating fluid falls below a predetermined pressure. An axially sliding, non- rotating ring 302 is pressed axially inward by springs 304, so that helical splines 306 on it engage splines 308 connected to the gear 262 engaging the blade roots. The engagement of these splines prevents pitch reduction. The lock is held open by pressure fluid in space 312. This space can be vented quickly by valve 330. U.S.A. Specifications 2,426,931 and 2,426,932 are referred to.
Patent GB-329929-A (GB)
Title: Improvements in or relating to the manufacture of jacquard chains for knitting machines
IPC: D04B15/66
Filed: 1929-09-12
Abstract: 329,929. Frikart, E., and Dubied, A. Sept. 12, 1929. Proportional - drawing instruments. - In order that a knitting design pattern M of the same size as the finished knitting may be used in preparing or punching the pattern chain cards or strips 14 used to control the jacquard bolts or pushers in multicoloured knitting, a pointer 11 is attached to a slide movable over a guide 3 and is connected to an endless band 9 passing over pulleys 7 fast to rollers carrying larger pulleys 8 for actuating an endless band 10 furnished with a slide 20 carrying an indicator 12. The pointer 11 is moved transversely across the pattern M and proportional but amplified movements are given to the indicator, which moves over a scale and over the strip K which is marked by a pencil at the parts to be punched. The indicator is moved over the whole effective length of the strip K which is greater than the width of the pattern, the amplification being necessary to compensate for the contraction which occurs to the fabric after knitting. In a modification the index pointer and indicating appliance may be associated with spindles having threads of different pitch and rotating together. In another modification described the indicator is replaced by a punching device.
Patent GB-225227-A (GB)
Title: Improvements in or relating to grenades
IPC: F42C14/02
Filed: 1924-11-20
Abstract: 225,227. Dutrieux, J., Vanderhaeghen, C., and Vanderhaeghen, J. F. Nov. 20, 1923, [Convention date]. Projectiles; fuzes.-A grenade adapted to be thrown by hand or discharged from a rifle muzzlesocket is made with two levers 7, 5 and a cam trigger 11 for holding and releasing the spring striker 14, which when released fires a percussion cap on an anvil 16, igniting a time fuze leading to a detonator, all arranged with the striker in an internal case 13 having a flange secured against packing 4 by a base plug 3. The trigger cam 11 is pivoted on a hollow pivot 12 and bears on the lever 5, which is pivoted at 6 and bears on the, lever 7, which in its turn is pivoted at 8 and is locked by a double armed safety pin; one arm 10<1> of this safety pin passes through the hollow pivot 12, and the other arm 10<11> passes over the lever 7 and is hooked to the end of the first arm. A packing ring of leather 9 is inserted beneath the inner lever 5. This arrangement of two levers reduces the outward thrust on the external lever. The grenade body is made with two turned rings a, b to fit the rifle muzzle socket ,and the levers are situated between these rings.
Patent GB-910866-A (GB)
Title: Hydro-pneumatic system
Inventor: DENKOWSKI WALTER J
IPC: F15B11/072
Filed: 1961-08-01
Abstract: 910,866. Hydro-pneumatic apparatus; valves. PHILADELPHIA GEAR CORPORATION. Aug. 1, 1961, No. 27828/61. Classes 69 (2) and 135. An hydro-pneumatic system for operating a plug or butterfly valve 1 in a trunk line comprises an oscillatory hydraulic torque actuator 3 operated in one direction or the other under the control of a valve 7 which connects a source 9 of air or gas to one or other of tanks 26, 27, partly filled with liquid and connected to opposite sides of the actuator, and emergencyoperable means consisting of manually-operable pumps 29, 30, and check valves 49, 51, 59, 61, interposed in the pipes between the tanks and the actuator. The valve 1 is spline connected to a shaft 2 on the vane 5 of the actuator which is movable between fixed abutments 6 to open and close the valve. A plate 25 is secured to the body of the valve and carries the tanks 26, 27 and a housing 28 containing the cylinders 29, 30 and pistons 32, 33 of the pumps. The control valve 7 is mounted on the front of the actuator and when it is moved by a handle 17 from the position shown to connect the source 9 of air or gas to the tank 27, the liquid therein is displaced through a pipe 56, the cylinder 30 and a pipe 57 to one side of the actuator to close the valve, liquid from the other side of the actuator passing through a pipe 47, the cylinder 29, a pipe 46 to the tank 26 which is connected by the valve 7 to an exhaust 10. Movement of the valve 7 to its alternative operative position effects movement of the actuator in the reverse direction to open the valve 1. In the event of failure of the supply of air or gas, the actuator can be moved to close the valve 1 by reciprocation of the piston 32 in the cylinder 30 by a lever 36, which is normally urged by a spring 42 to a retracted position, to draw liquid from the tank 27 through a by-pass pipe 58 and check valve 59 and supply it through the check valve 61 and by-pass pipe 60 to the actuator. Reciprocation of the piston 31 in the cylinder 29 moves the actuator in the reverse direction to open the valve 1. The pistons 31, 32 may be positioned in the cylinders 29, 30 so as to disconnect the pipes 46, 56 from the pipes 47, 57, respectively, so that operation of the control valve 7 is ineffective on the actuator, locking bars preventing the springs 41, 42 from retracting the pistons. In an alternative embodiment, the pipes are re-arranged and additional valves provided so that liquid displaced from the tanks 26, 27 to the actuator 3 does not flow through the cylinders 29, 30 of the pumps.
Patent GB-1485414-A (GB)
Title: Devices for removing liquids from surfaces
IPC: A47L13/144
Filed: 1975-05-16
Abstract: 1485414 Self-wringing and other mops; pads M R COLEBROOK 16 May 1975 [22 June 1974] 27830/74 Heading A4F A device for removing liquid from a surface includes an element 1 of liquid absorbent material, e.g. natural or artificial sponge or foam rubber, having an inner stiffener or bearing member 1A and a readily mountable and removable covering 11 of permeable material, e.g. towelling, felt, chamois leather, or natural or synthetic cloth. The element 1 may be cylindrical or of a cross-section which is hexagonal, square with rounded corners, or oval. In the device illustrated in Fig. 1, the element 1 is rotatably mounted on a rod 3 having a handle 4, and may be squeezed between end-plates 5, 6, to expel collected liquid, the plate 6 being movable towards the plate 5. The member 1A may be a rubber hose perforated so that liquid can be drained from the element 1 into the hose. In a further embodiment, the element 1 is mounted in a base (15), Fig. 3 (not shown) having a handle (16). The squeeze mop illustrated in Fig. 5 comprises two devices 20, 21, constructed in accordance with the invention, mounted on plates 24, 25 hinged together, a lever 36 pivoted to the mop handle 23 being movable to actuate a link 37 to squeeze the devices 20, 21 together. Alternatively the lever mechanism may be replaced by a sleeve slidable upon the handle and operating linkage performing the squeezing operation.
Patent GB-463267-A (GB)
Title: Improvements in and relating to weaver's knotters
IPC: B65H69/04
Filed: 1935-10-09
Abstract: 463,267. Knotting-appliances. COOK & CO. MANCHESTER, Ltd., and COOK, N. Oct. 9, 1935, No. 27841. [Class 112] A weavers' knotter of the swinging - arm type provided with sliding and fixed yarnholding devices and having two scissors devices, is designed to produce a short-ended and tight knot. The invention is described as applied to a knotter of the type described in Specification 394,220. The device has a support 7 extending from the hand grip, carrying the frame 8. The usual quadrant 9, operating screw 10, knotting bill 11, trigger 12, return spring 13, and scissors 14 on the end of the bill, are provided. When the apparatus is in use, the two strands to be knotted are laid across in the pairs of slots 25 and 24, both strands being guided by the slots and hood 29 to a position behind the scissors 14 of the bill 11. The trigger 12 is then depressed. The pair of sliders 27 nip the strands in their slots and the bill takes a turn round the strand in the outer slots 24. The bill then loops between the two strands on the swinging arm side and one strand is engaged and cut by the scissors 14. As the bill moves over the post 31, the strands are slipped off the bill, the cut end being still held by the bill. The scissors 30 then cut the uncut strand close to the knotting bill. The result is that both ends are short and owing to the loop being held against the post 31, a tight knot is produced.
Patent GB-1250031-A (GB)
Title: Video display apparatus for displaying coded character bit signals
IPC: H04L13/18
Filed: 1969-06-02
Abstract: 1,250,031. Cathode ray display for telegraph signals. COLUMBIA BROADCASTING SYSTEM Inc. 2 June, 1969 [3 June, 1968], No. 27842/69. Heading H4T. Apparatus visually displaying up on a magnetically deflected CR tube image reproducer the characters represented by multibit digital e.g. telegraph signals from two sources, comprises a high frequency clock generator driving serially coupled 1st, 2nd and 3rd counters developing counts to represent the maximum number of bits per scanning line, the maximum number of lines per display character, and the maximum number of lines per field scan, followed by timing signal decoders generating predetermined first, second, third and fourth timing signals and by generators responsive to the accumulated counts for generating horizontal and vertical scanning signals and synchronising signals respectively. Two recirculating buffer register stores responsive to first timing signals accommodate a selected number of the respective character representative signals from each source, which are transferred thereto by a recirculating buffer control responsive to third timing signals, with elimination therefrom of the earliest character representative signals; while offset counters responsive to the transfer control the initial readout from the buffer stores to a character generator device converting the character signals into positional signals stored in an array of electrical storage elements, in a pattern delineating the characters represented, with incremental positioning of each character once per field and frame scan. Gates responsive to the readout and to fourth timing signals alternately transmit the readout character signals to the character generator, and scanning means responsive to second timing signals scan and read the array to derive character representative signals corresponding to the character representative signals alternately transmitted by the gates. The scanning of each character pattern is completed before signals representing the next pattern are entered from the buffer readout. The character representative signals are applied to masking circuits responsive to fourth timing signals to transmit selected signals to the image reproducer, for display on a television type raster with line and field scan; the characters being displayed in a row orientated in the field scan direction, and characters represented by signals at the two inputs being displayed on opposite face halves of the reproducer.
Patent GB-919934-A (GB)
Title: An electrical spark-generating device for the ignition of oil burners and the like
Inventor: HAGLUND HANS VALDEMAR
IPC: F02P15/00
Filed: 1961-08-01
Abstract: 919,934. Ignition systems. AUTOCALOR A.B. Aug. 1, 1961, No. 27843/61. Class 7(4) An ignition system for oil burners or the like wherein a spark gap 1, 2 is fed with high voltage alternating current from the secondary L2 of a transformer to the primary L1 of which is applied the output voltage from a D.C. to A.C. converter fed by a source of direct current B, is characterized in that the converter consists of a transistorized selfoscillating multivibrator. In a modification the primary winding of the transformer is centre tapped R2 no longer being connected to the supply, which is connected to the centre tap of the primary. The transistors are similar power transistors and the resistor Rl is omitted.