baber/WOPTO huggingface dataset:
Patent GB-1458556-A (GB)
Title: Alkylation process and catalysts for use therein
IPC: B01J27/02
Filed: 1974-04-26
Abstract: 1458556 Alkylating hydrocarbons TEXACO DEVELOPMENT CORP 26 April 1974 [14 May 1973 14 June 1973 18 June 1973] 18314/74 Heading C5E [Also in Division B1] Hydrocarbons are alkylated with olefins in the presence of a liquid alkylation catalyst comprising a liquid strong acid, e.g. H 2 SO 4 , and 0À0005 to 0À5 wt. per cent based thereon of a sulphonamide of formula R 1 SO 2 NHR 2  where R 1  is alkyl, aryl or alkaryl and R 2  is C 8 -C 20  alkyl. The process is particularly suited for the alkylation of isoparaffins, e.g. isobutane, isopentane or isohexane, with C 3 -C 5  olefins, e.g. propylene, butylene or isobutylene, to give hydrocarbons boiling in the gasoline range. The reaction may be carried out in the liquid phase at 10-150 psig and 0-150‹ F. using a isoparaffin to olefin mole ratio of 1 to 50 : 1. The sulphonamide may be N-(octadecyl)benzene-, N-(octadecyl)toluene-, or N-(octadecyl)methane sulphonamide and may be added as a solution in a hydrocarbon solvent also containing an alkyl phenol solubilizing agent. A particular form of such a solution forms the subject of Specification 1,458,557. The examples relate to the alkylation of isobutane with butene-2 or propylene to give C 5 -C 9  products rich in trimethylpentanes.
Patent GB-735878-A (GB)
Title: Improvements in or relating to cold cathode gas discharge tubes
Inventor: TOSSWILL CHRISTOPHER HALY
IPC: H01J17/48
Filed: 1952-07-21
Abstract: 735,878. Cold cathode tubes. MULLARD RADIO VALVE CO., Ltd. July 8, 1953 [July 21, 1952], No. 18363/52. Class 39 (1). [Also in Group XL (c)], A cold-cathode gas discharge trigger tube, Fig. 3, comprises a disc-shaped main cathode 3 supported by two wires 20 and 21 surrounded by insulating sleeves 22 and 23 and passing through seals in a moulded glass base 24 where they are joined to external connecting pins. A main anode 2 extends through a sleeve 26 to the base 24. A trigger electrode 8 is mounted on a support wire 27 which extends through a sleeve 28 to the base 24 and is joined to a connecting pin 29. The trigger electrode is bent horizontally to approach one end of a linking cathode 7 mounted on a support wire 31 joined to a connecting pin 32. The support wire 31 is held vertically by a further support wire 33 welded thereto and joined to a connecting pin 34. The linking cathode 7 is bent so that its lower end lies along the tube axis and approaches a vertical portion of a transfer cathode 6 mounted on a support wire 35. The transfer cathode 6 terminates at its lower end adjacent a priming anode 4 and a priming cathode 5 mounted on a support wire 36 joined to a connecting pin 37. The gas filling comprises a mixture of 50 per cent Neon and 50 per cent Argon at a pressure of 15 mm. of mercury. The geometry of the tube and the potentials applied to the various electrodes are such that a discharge established at the priming gap does not by itself initiate the main discharge. The tube is connected in a circuit, Fig. 1 (see Group XL (c)), whereby a very small residual discharge occurs between the trigger electrode 8 and the linking cathode 7. A priming discharge is established between the priming anode 4 and the priming cathode 5 by connecting terminals 12 and 13 together. This discharge is transferred to the transfer cathode 6 by applying a positive potential to terminal 12 or alternatively by applying a negative pulse to the transfer cathode 6. The discharge at the transfer cathode 6 is immediately captured by the linking cathode 7 whereupon the potential of the linking cathode rises and the residual discharge between electrodes 8 and 7 is extinguished. The potential of the trigger electrode 8 rises owing to the disappearance of the potential drop across the resistance 16 and a discharge occurs between the trigger electrode 8 and the main cathode 3 which initiates the main discharge to the main anode 2. Specification 706,201 is referred to.
Patent GB-1180316-A (GB)
Title: Method of making a Flexible and Hydrophilic Polyurethane Foam
IPC: C08J9/00
Filed: 1968-04-18
Abstract: 1,180,316. Flexible, hydrophilic polyurethane foam. ELEKAL. 18 April, 1968 [19 April, 1967], No. 18464/68. Headings C3C and C3R. A flexible and hydrophilic polyurethane foam consists essentially of a polyurethane based on a polyether or polyester polyol, has an open-cell structure and contains 5 to 35% by weight, based on the polyol, of microcrystalline cellulose in the form of fine particles homogeneously distributed in the pores of the polyurethane. It is suitably prepared by reacting in one-shot a polyether or polyester polyol at ambient temperature with an organic polyisocyanate in the presence of water, a fatty acid salt of divalent tin, a tertiary amine, a surface active agent and the microcrystalline cellulose. It is preferred to mix the microcrystalline cellulose with the polyol to form a binary mixture which has the tin compound, tertiary amine and surface active agent added to it before or while causing the reaction with water and the polyisocyanate. Preferably the microcrystalline cellulose has a particle size of between 0À1 and 100 microns.
Patent GB-786533-A (GB)
Title: Improvements in or relating to continuous recording instruments
Inventor: KNIGHT LESLIE ALFRED RICHARD
IPC: G01D9/12
Filed: 1955-06-27
Abstract: 786,533. Pens for recording-instruments. SIGMA INSTRUMENT CO., Ltd. June 13, 1956 [June 27, 1955], No. 18511/55: Class 146(3) [Also in Group XIX] A recording instrument of the kind which employs a continuously moving chart 5 on which a writing instrument 8 is moved transversely to the direction of advance of the chart in accordance with the quantity to be recorded. has a marker 1 for tracing a control line 22 on the chart, the marker having a nib 19 adjustably secured to the instrument frame such that the position of the control line may be transversely adjusted. The nib 19 is carried by an-arm 18 pivotally secured to an arm 16 by a nut and bolt 21. The arm 16 is hinged by a t and bolt 20, to a bracket 17 secured to a clip 12 fitted on a plate 6. A tube 15, secured to the arms 16, 18 by bands 15A, supplies ink from a reservoir 11 to the nib 19. The reservoir 11 is supported in a clip 10 welded to the clip 12. The transverse position of the line 22 may be varied by slackening the nuts and bolts 20, 21 and moving the nib 19 to the desired position and tightening the nuts and bolts. The reservoir 11 is slid upwardly in the clip 10 to initiate the flow of ink, a lip 13 on the reservoir normally being maintained at the same level as the nib, such that the flow of ink is maintained by capillary action. The chart 5 is moved in the direction A over rollers 3, 4, while the pen 8 is moved, in the directions B and C, in accordance with the quantity to be recorded.
Patent GB-897066-A (GB)
Title: Improvements in or relating to power transmission gearing
IPC: F16H1/22
Filed: 1959-06-01
Abstract: 897,066. Toothed gearing. ZAHNRAEDERFABRIK RENK A.G. June 1, 1959 [June 9, 1958], No. 18525/59. Class 80 (1). In a double helical double reduction gearing having a divided power transmission path, coaxial driving and driven gears 1, 4, respectively, mesh with several (three shown) spaced countershaft gear pairs 2, 3 and 2<SP>1</SP>, 3<SP>1</SP> mounted in a housing 12, the gears of each pair being non-rotatably connected, e.g. through splines or elastic couplings 5, or 6, so as to permit angular and axial displacement of their axes, and the driving driven gears are positively located radially merely by engaging the countershaft gear pairs. As shown, one countershaft pair 2<SP>1</SP>, 3<SP>1</SP> is axially located by thrust bearings 15, and the driving and driven gears 1, 4 are connected to their shafts through splined couplings 7, 8, whereby meshing engagement locates the gears 1, 4 both radially and axially. In Fig. 3, not shown, the thrust bearings 15 are omitted and the driving and driven gears are located axially by flexible shafts which replace the couplings 7 and 8. The spline couplings 6 of all but one of the countershaft gear-pairs are adjustably pinned on one of the gear-pairs to accommodate mesh.
Patent GB-562485-A (GB)
Title: Improvements relating to automatic packing machines
IPC: B65B43/16
Filed: 1942-12-30
Abstract: 562,485. Packing. AUTOPACK (LONDON), Ltd., (formerly Colby Engineering Co., Ltd.), LEE, G. A., SMITH, A. R., and HOPKINS, C. J. Dec. 30, 1942, No. 18528. [Class 94 (i)] Relates to an automatic machine for inserting weighed or measured quantities of seeds or granular or powdered material into small paper bags or envelopes and consists of mechanism for transferring envelopes individually from a receptacle to a rotary table and of means for attaching the envelopes to, and releasing them from, the table. The machine comprises a table a, Figs. 1 and 5, which is rotated step by step by a cam e secured to the upper end of an oscillating shaft j. The cam moves the table by engaging one of a number of sliding pawls f which are normally urged inwards by springs g. The edge of the table is provided with four equally spaced shallow pockets b each adapted to receive anenvelope which is transferred from a stack on a trough-like magazine o, Figs. 5 and 6. The front of the magazine is open but is provided with narrow ledges q for holding the envelopes which are pressed forward towards the ledges by a weighted lever r. The transfer device consists of a pair of arms 10, 11, Figs. 1, 5, and 8, the arm 10 being resiliently secured through a torsion spring 15 and cap 15<1> to a vertical shaft 16, s to which the arm 11 is rigidly secured, the arms terminating in fingers 12, 13 for gripping the envelopes. A flanged collar t secured to the shaft rests on another collar u which is mounted on the shaft but is not rotatable, a disc v of friction material being interposed between the collars. The shaft is raised and lowered at intervals by cam mechanism and the sleeve 16 surrounding the shaft is oscillated. These movements bring the arms 10 and 11 over the pile of envelopes and then lower them so that the front of the foremost envelope enters between the fingers 12, 13. The reverse movement of the sleeve 16 causes the fingers to grip the envelope and carry it from the pile to the nearest recess b on the table a. The shape of the recess causes the envelope to distend and its inner side is gripped and retained by a clip 26. The distention of the envelope is assisted by an air jet from a nozzle 27. - Movement of the table a carries the bag to the next station when fingers 28 descend into the envelope and are spread apart to ensure that the envelope is fully distended, and at the next station seeds are delivered into the bag through a nozzle 39. Finally at the next station the bag is released by the clip 26 and falls into a shoot.
Patent GB-956326-A (GB)
Title: Improvements in portable gas lamps
IPC: F21L19/00
Filed: 1962-05-15
Abstract: 956,326. Portable gas lamps. APPLICA. TION DES GAZ. May 15, 1962 [May 17, 1961], No. 18015/62. Heading F4R. In a portable gas lamp, a burner is carried by a gas intake head mounted on a liquified gas bottle or on a support enclosing a liquified gas cartridge and an incandescent mantle is mounted at the top of the burner which also carries a supporting plate for a cylindrical lamp glass secured in position by resilient means fastened to the plate. In the form shown, the gas intake head 1 is adapted to be secured to a gas bottle 2 or a support for a perforatable gas cartridge and is fitted with a valve operated by a knob 3. The upper end carries a jet (not shown) enclosed in a burner tube 6 which is secured to the head 1 by a clip 7. The tube 6 has air inlets 6b and carries a tube 8 on which is mounted a mantle 12. A plate 9 having a raised central circular portion is secured to the tube 6. A lamp glass 11 engages over the central portion and is held in place by resilient fingers 10 secured to the plate. The plate has a cylindrical skirt 9b in which are diametrically opposite grooves 9c having holes to receive the lower ends of a stirrup 16. A cover consisting of a flat plate 14 surmounted by a conical hood 15 is carried by the stirrup 16, to which a carrying handle 17 is also secured.
Patent GB-1336044-A (GB)
Title: Direct-positive silver halide photographic emulsion
IPC: G03C1/485
Filed: 1971-06-02
Abstract: 1336044 Supersensitizing direct positive silver halide emulsions FUJI PHOTO FILM CO Ltd 2 June 1971 [2 June 1970] 18670/71 Heading G2C A direct positive fogged silver halide emulsion contains a supersensitizing combination of a cyanine dye of formula I: in which Z and Z<SP>1</SP> each represent the atoms necessary to complete a 5- or 6- membered heterocyclic nucleus, which may carry further substituents except at the N-position, R and R<SP>1</SP> each represent alkyl or aryl, which groups may be substituted, cycloalkyl or allyl, L<SP>1</SP>, L<SP>2</SP> and L<SP>3</SP> each represent methine or a substituted methine in which the substituents of two substituted methine groups may link to form a ring of the following formula:- in which R<SP>6</SP> is H or CH 3  and R<SP>7</SP> is H, alkyl, substituted alkyl, aralkyl, phenyl, substituted phenyl or furyl, p and q are each 1 or 2, n is 1, 2 or 3, m is 1 or 2, X is an anion but is absent when m is 1, the dye forming a betaine structure, together with a compound of formula II:- wherein each Y, which may be the same or different, is =CH- or =N-, R<SP>2</SP>, R<SP>3</SP>, R<SP>4</SP> and R<SP>5</SP> each represent H, OH, alkoxy, aryloxy, halogen, heterocyclic nucleus, alkylthis, arylthio, amino substituted or unsubstituted arylamino or alky lamino, heterocyclylamino, aryl or mercapto, and -A- is -A 1 - or -A 2 - where -A 1 - represents:- in which M is H or a cation giving water-solubility to the group, and -A 2 - is:- with the limitation that when -A- is -A 2 - at least one of R<SP>2</SP>, R<SP>3</SP>, R<SP>4</SP> and R<SP>5</SP> is a substituent having a -SO 3 M group wherein M is as defined above. The emulsion may also contain as a sensitizer the salt of a Group VIII metal e.g. an iridium or thodium salt.
Patent GB-488891-A (GB)
Title: Improved manufacture of profile metal sections from strip or rod material
IPC: B21D5/08
Filed: 1937-07-05
Abstract: 488,891. Angular bending. NEVYJEL, H., and RAMSCHEGG, F. July 5, 1937, No. 18697. Convention date, July 4, 1936. [Class 83 (iv)] A metal strip bent into a desired profile section between rolls 14 is guided to and from the rolls by pairs of guide rollers 5, 6 and 8, 9 which are adjustable in any direction to suit, both by screws 10 and carrier brackets 12 with slots for adjustment along their fixing screws. The bending rolls and feed rollers are preferably mounted on a plate 1 pivotable up and down by a lifting jack 2 which can be adjusted so that the section issues straight. The bending rolls may be mounted in a circular housing 22, rotatable in the frame 23 and secured where desired by clamps 25. The usual screw adjustment of the pass is also provided. The strip is fed off a reel 4 and the profile section is received by a trolley.
Patent GB-1222439-A (GB)
Title: Percussion device for fire-arms
Inventor: DONNER FREDRIC ARNO
IPC: F41A19/13
Filed: 1968-04-19
Abstract: 1,222,439. Percussion firing mechanism. F. A. DONNER. 19 April, 1968 [20 April, 1967], No. 18707/68. Heading F3C. A percussion device for a mortar comprises a projectile receiving chamber I<SP>1</SP>, a striker rod 10 and striking mechanism, the rod being slidable between a firing position and a rest position and having one end movable within a passage (formed in the cap 9) to project therefrom into the chamber in the firing position, and carries a sealing valve 11 for co-operation with a seat 12 formed round the axis of the said passage and facing the chamber, the rod having return means 14 co-operating therewith to urge the valve against the seat, the said one end of the rod being a loose fit within the passage and thereby substantially free from sliding friction along its sides during its sliding movement. As shown, the striking mechanism comprises a hammer 22 actuable by a spring, not shown, and returned by spring 15. In another embodiment (Figs. 2-4, not shown) the hammer is provided with a positive drive by means of an eccentric pin (17), the hammer 22 being loosely coupled to the striker rod 10 which has a rear tip (18) disposed between faces (20, 21) of the hammer.
Patent GB-712189-A (GB)
Title: Improvements relating to control systems for dynamo electric machines operatively coupled to coilers or the like
Inventor: ASBURY ALLAN
IPC: B65H23/198
Filed: 1951-08-10
Abstract: 712,189. Automatic tension control. ENGLISH ELECTRIC CO., Ltd. Nov. 10, 1952 [Aug. 10, 1951], No. 18867/51. Class 38(4) Inertia compensation is provided in a constant current/tension control system for a D.C. coiler motor. The coiler motor 13 and a flywheel motor 18 are supplied through " measuring resistors " 14, 17 from bus bars 15 having a voltage varying substantially as the strip speed of the mill. The fields 13a, 18a are energized from an exciter 16 controlled by the difference betwen the I.R. drop across resistor 14 and the output of a reference generator 20 plus the I.R. drop across resistor 17. Under constant speed conditions the drop due to resistor 17 is negligible, but under varying speed, i.e. variable voltage applied to busbars 15, a variable drop is produced to oppose that in resistor 14 due to the inertia of motor 13. Specification 644,868 is referred to.
Patent GB-457348-A (GB)
Title: Improvements in or relating to the treatment of whale meat
IPC: C11B1/02
Filed: 1935-07-02
Abstract: Oil and cattle food are obtained from whale meat by mechanically stirring the sub-divided meat maintained at 35--65 DEG  C. by indirect heating, pressing, and drying the residual meat. The expressed oil may be refined by filtering or centrifuging.
Patent GB-1166319-A (GB)
Title: Improvements in or relating to Electron Beam Generating Systems of High Power.
IPC: H01J23/087
Filed: 1967-04-25
Abstract: 1,166,319. Transit-time tubes. SIEMENS A.G. 25 April, 1967 [26 April, 1966], No. 18955/67. Heading H1D. An electron gun for producing a compressed electron beam in a travelling wave tube or klystron includes a cathode 3 having a circular emissive surface, a modulating electrode, at least one iris-shaped anode 4, and an axial, rotationally symmetrical, magnetic field which reverses direction at the cathode, to give a zero component of magnetic field perpendicular to the cathode surface over the whole of its emissive surface, and which increases in intensity from the cathode towards a guiding magnetic field for the compressed beam. As shown, the modulating electrode is constituted by a pole piece 1 extending from a permanent magnet system which provides the uniform guiding field, the polepiece being apertured to permit observation, and accurate positioning of the emissive face of the cathode, which may be plane, as shown, or concave or convex. The specified magnetic field behaviour at the cathode reduces both noise in the electron beam and the ion bombardment of the emissive surface.
Patent GB-674583-A (GB)
Title: Improvements in and relating to vapour generators
IPC: F22D1/12
Filed: 1950-07-28
Abstract: 674,583. Feedwater heating systems and installations ; heating air and gases. FOSTER WHEELER, Ltd. July 28, 1950 [April 22, 1950 ; April 22, 1950], No. 18971/50. Classes 64(i) and 64(iii). The economiser of a steam-boiler is arranged in sections one beyond the other in the path of the furnace gases, the sections being provided with inlets for separate streams of feedwater, a heat-exchanger serving to raise or lower the temperature of one stream so that two streams reach the economiser at different temperatures, the stream of lower temperature being fed to a section of the economiser more remote from the furnace than the section to which the stream of higher temperature is fed. The boiler has a furnace 10 fired by burners 12, a steam and water drum 14, a water drum 16, steam generating tubes 18 and a superheater 20. The economiser is in two sections 24, 26 in the flue 22, the remote section 24 being fed by a pipe 28 and the section 26 by a pipe 30 into which is led an outlet pipe 32 from the section 24. The section 26 has an outlet pipe 34 leading to the steam and water drum 14. Steam from the superheater 20 is fed through a pipe 38 to a turbine 36, whence condensate passes through a pipe 40 and a spray head 42 to a feedwater heater 44. Steam bled from the turbine passes through a pipe 46 to the heater 44 and make-up feedwater enters the pipe 40 through a pipe 48. The feedwater leaves the heater 44 through a pipe 50 and is split into two streams by a valve 52, one stream passing through the pipe 28 to the economiser section 24 and the other stream passing to a second heater 54 and thence to the economiser section 26. Steam is fed from the turbine through a pipe 58 into the feedwater heater 54 and after passing through the heater is exhausted through a pipe 60. The steam supply pipe 58 has a branch connection through a valve 64 to an airheater 66 supplying pre-heated combustion air to the furnace. Temperatures of feedwater, furnace gases, steam and air are tabulated. The heated feedwater leaving the heater 54 may be used to pre-heat the combustion air, the water after giving up its heat passing to the cooler section of the economiser. In an alternative arrangement the superheater is omitted from the boiler and the feedwater is not heated after it is split into two streams. One stream passes through the air-heater, where it is cooled before passing to the cooler section of the economiser.
Patent GB-237108-A (GB)
Title: An electric radiator applicable to pianos and other keyboard instruments, for warming the hands of the player
IPC: H05B3/00
Filed: 1924-08-11
Abstract: 237,108. Percival, S., (Poeymirou, S.). Aug. 11, 1924. Pianoforte and like keyboards. - An electric radiator for pianos and other key-board instruments comprises a resistance element supported within a perforated tuba K, a combined reflector and shield A, and extensible brackets R for adjustably supporting the parts on the instrument. The reflector is of copper, nickel-plated on the inside and provided with fibre strips P.
Patent GB-1583820-A (GB)
Title: Method of knitting loop courses of elastic welts in hoslery and similar goods
IPC: D04B1/26
Filed: 1978-05-12
Abstract: In this process, stitches (a) consisting of a thicker yarn (P1) than the yarn for knitting the knitted article and then stitches consisting of a thinner yarn (P2) than the yarn for knitting the knitted article are knitted. Further stitches (c) are knitted with the first needles and tuck stitches (b) are knitted with the other needles, after which an elastic yarn (P3) is knitted in by means of the other needles. This ensures that the stitches (a) and the tuck stitches (b) in the stitch wale (1) are located more on one side of the fabric and the stitches (a) and (c) in the stitch wale (2) are located more on the other side of the fabric, so that the edge contracts to a smaller diameter and is sprung in the same way as a double-knitted article. <IMAGE>
Patent GB-1107013-A (GB)
Title: Compression-ignition internal-combustion engines
IPC: F02B57/00
Filed: 1964-05-08
Abstract: 1,107,013. Two stroke engines; driving gear. R. BEECH. April 1, 1965 [May 8, 1964], No.19163/64. Heading F1B. In an opposed piston compression ignition engine with the cylinders arranged around the drive shaft 4 and driving the shaft through cam means 6 on flywheels 5 on the shaft, each piston 9, Fig. 3, has a rod 10 carrying a retaining piston 11 provided with a cam bowl 14 engaging the cam 6. A second cam roller 16 engages behind a flange on the cam 6 to hold the bowl 14 in contact with the cam. The rod 10 has grooves 11 which permit air compressed behind piston 9 to pass into the supplementary cylinder 8 to act on the piston 10 during the working stroke of piston 9, the grooves being closed near the end of the stroke.