baber/WOPTO huggingface dataset:
Patent GB-867978-A (GB)
Title: A threaded spindle for tightly screwing or releasing objects
IPC: B25B1/10
Filed: 1959-04-27
Abstract: 867,978. Vices ; extracting wheel from shafts. SCHREM, L. April 27, 1959 [April 26, 1958], No. 14217/59. Class 61. In a vice with a sliding jaw 13, Fig. 2, operated by a screw spindle 16a, auxiliary hydraulic tightening is provided by a cam actuated pressure pin 24 which is forced into a pressure chamber 16c within the spindle 16a to produce an amplified force on the jaw 13. The spindle 16a comprises two parts 16, 17 joined by coupling claws 16b and locking screw 18 which permit limited relative axial displacement while providing a driving engagement for turning the spindle 16a by a handle 21. The pressure pin 24 is slidable within the part 17 and is actuated by a cam 22 which is rotatable on the handle 21 by means of a lever 23. The pin 24 enters the chamber 16c through a sealing ring 25 which also forms a fluid-tight seal between the parts 16, 17. In another example suitable for use in extracting shafts &c. a pressure pin 34, Fig. 3, projecting into a chamber 30b of a spindle 30 has a threaded portion 36 which is screwed into a nut 37c to apply pressure.
Patent GB-338482-A (GB)
Title: Process for refining petroleum and like hydrocarbons
IPC: C10G21/06
Filed: 1929-05-07
Abstract: 338,482. Triggs, W. W., (fan American Petroleum Co.). May 7, 1929. Mineral oils, purifying.-A process for purifying hydrocarbon oils such as lamp oil distillates, lubricating oil, cracked hydrocarbons or kerosene, consists in treating the oil, below 32‹ F., with liquid sulphur dioxide, and after separating the two liquids, treating the partly purified oil containing dissolved sulphur dioxide, below 32‹ F., with fuming sulphuric acid and thereafter separating the purified oil from sulphur dioxide and sulpho-acids. The oils are thereby freed from unsaturated and sulphur-bearing hydrocarbons. The oil, stored in a tank 45, passes through a heat exchanger 17, cooled by outgoing treated oil from the tower 12, and is then further cooled to about 17‹ F., by passage through a pipe coil 50, surrounded by liquid sulphur dioxide, and then passes through a pipe 53 to a tank 1. The cooled oil is led from the tank 1 through a tube 2 to the bottom of a treating tower 4 where it rises through a distributing plate 5 and is treated with a descending stream of used liquid sulphur dioxide coming from a second treating tower 8. From the treating tower 4 the partly treated cold oil passes through a pipe 26, to the base of the second tower 8 and is similarly treated with cooled liquid sulphur dioxide led to the top of the tower 8 from a tank 22 and a pipe 24. The partly purified oil then passes from the tower 8 through a pipe 11 to the base of an acid treating tower 12, where it is sprayed upwards against a descending spray of fuming sulphuric acid or sulphur trioxide. The purified oil, then passes through a pipe 16, heat exchanger 17, and a pipe 18 to an evaporator 19 where sulphur dioxide is removed from the oil by a steam pipe 20. The sulphur dioxide thus liberated is compressed by a pump 38 and is returned to a storage tank 39. and the purified oil is discharged through a pipe 62 for storage or for subsequent treatment with caustic soda, or distillation. The used sulphur dioxide containing extracted hydrocarbons in the tower 4 passes through a heat exchanger 28, by which the compressed sulphur dioxide passing through the pipes 40, 41 is cooled, and thereafter it passes through evaporators 30 and 34 where the sulphur dioxide, is removed therefrom, yielding a residue of hydrocarbons which are discharged through a pipe 36. The sludge formed in the acid treating tower 12 is drawn off through a pipe 42 into a tank 44. The acid treatment of the oil in the tower 12 may be effected by a gas bearing sulphur trioxide passed through a. pipe 61 and a spray 14. Specifications 338,483 and 338,484 are referred to.
Patent GB-810671-A (GB)
Title: Improvements relating to curtain suspension arrangements
IPC: A47H1/144
Filed: 1956-05-09
Abstract: 810,671. Suspending curtains. JOHNSON, F. D. May 9, 1957 [May 9, 1956], No. 14331/56. Class 52(5) A synthetic plastic or brass bracket 21 is attached to a synthetic plastic rail 14 having a continuous top groove (Figs. 2 and 6) or side groove 18 (Fig. 13) by inserting a key 25 on the bracket arm into the groove 18 with the bracket parallel to the rail and then turning the bracket through a right angle to the fixing position so that the key comes into frictional engagement with the inner walls of the groove. As shown, the bracket is of metal and the key is struck up therefrom. The key may have side teeth as shown or may be straight sided. The inner walls of the groove may be longitudinally ribbed. An end stop 31 is similarly fixed to the rail. The bracket arms may be extended to form valance supports 33. Specifications 808,104 [Group XXXVI] and 809,505 [Group VI] are referred to.
Patent GB-253150-A (GB)
Title: A new or improved process of producing metal compounds
IPC: C01B33/10
Filed: 1925-05-08
Abstract: 253,150. Meyerhofer, A. F. Jan. 10, 1925, [Convention date]. Hydrofluosilicic and phosphoric acids.- Barium silicofluoride which may be obtained by treating a salt such as barium phosphate with hydrofluosilicic acid, is heated to obtain barium fluoride and silicon fluoride; the barium fluoride is reacted with a salt or oxide capable of yielding an insoluble fluoride, such as calcium nitrate or hydroxide, so as to produce barium nitrate or hydroxide and an insoluble fluoride; and the insoluble fluoride together with the silicon fluoride obtained as described above, is treated with an acid to obtain hydrofluosilicic caid, which may serve for producing more barium silicofluoride. The barium hydroxide or nitrate is heated to obtain the oxide which is converted into the peroxide and may be used for the production of hydrogen peroxide. In these operations one of the reagents may be introduced in the solid state and the quantity of solvent present may be insufficient to dissolve all the soluble matter, and in some cases solvent may be dispensed with. Heat and pressure may be employed. Specifica. tion 226,491 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) states that the hydrofluosilicic acid may be used to re-form barium silicofluoride by way of another silicofluoride. This subjectmatter does not appear in the Specification as accepted.
Patent GB-998041-A (GB)
Title: Relaxation oscillator employing impulse synchronisation
IPC: H04N5/05
Filed: 1962-04-13
Abstract: 998,041. Sawtooth generating circuits. STANDARD TELEPHONES & CABLES Ltd. April 1 3 , 1962 [April 14, 1961], No. 14368/62. Heading H3P. A relaxation oscillator is synchronized by pulses of longer duration than the flyback time of the sawtooth wave generated by the oscillator so that each sweep is terminated by the leading edge of each synchronizing pulse, the next effective sweep being initiated by the trailing edge. Fig. 6 shows a blocking oscillator comprising a valve 6 having regenerative feedback via a transformer 5 and providing a sawtooth voltage at the junction of components 7, 8. The negative voltage across capacitor 9 increases when synchronizing pulses 1 are applied via capacitor 11 so as to have the effect of altering the natural frequency and permitting synchronization by pulses having a frequency either above or below the inherent free-running frequency (Figs. 2-4 and 7, not shown). The positive bias fed to resistors 3, 10 may be adjusted so that the hold range is symmetrical about the free-running frequency. Capacitor 9 also minimises the effect of a short failure of synchronizing pulses. In Fig. 1 (not shown), components 9, 10 are omitted. The invention may be applied to multivibrators in television receivers.
Patent GB-514737-A (GB)
Title: Improvements in or relating to automatic switches for use in telephone or like systems
IPC: H01H67/06
Filed: 1938-05-13
Abstract: 514,737. Automatic exchange switches. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and BAKER, G. T. May 13, 1938, No. 14370. [Class 40 (iv)] A group of switches sharing a contact field and, as shown, a driving mechanism, comprises a number of contact-making devices a...e, movable independently in circular paths and each adapted to connected a selected group of terminals in the common field (shown in Fig. 1 as a single row of contacts) with the corresponding circuits of the switch by way of a group of individual contact segments (each group being represented in the figure by a single line). In some cases, two switches may share individual segments, e.g., to form a finder/connector link. The same switch may have two or more contact-making devices. The common drive, after setting one switch, automatically associates itself with an idle switch, which is then marked next for use. When this switch is taken into use (or alternatively when it is pre-selected) a magnet 26, Fig. 4, by means of scissor arms 22, 23, projects an energized electromagnet 24 or 25 towards the soft iron frame-work of the contact-making device of the switch and is then de-energized. Magnet 24 thus withdraws the contact-making member from the bank. The scissor arms are subsequently driven step-bystep under control of a test wiper (not shown). When the appropriate position is reached, magnet 26 is re-operated to drive the contactmaking member into engagement with the selected terminals. Magnets 24 and 26 are both released and the scissor arms are then driven to the next idle switch under control of a further test wiper (not shown). In a modification, Fig. 5 (not shown), the magnet 24 controls a mechanical gripping device instead of acting on the contact-making device mechanically and magnet 25 is not provided. Magnets 24, 26 in this arrangement may both be mounted on the axis of rotation to reduce the moment of inertia of the moving system.
Patent GB-1435405-A (GB)
Title: Variable-geometry convergent-divergent nozzles
IPC: F02K1/12
Filed: 1974-04-01
Abstract: 1435405 Jet propulsion nozzles - variable area SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION 1 April 1974 [27 April 1973] 14375/74 Heading F1J The invention relates to a variable area, convergent-divergent nozzle such as a jet propulsion nozzle and comprises two annular assemblies of pivotally mounted flaps, namely an upstream annular assembly of flaps 101, 102 and a downstream annular assembly of flaps 201, 202, each flap in the upstream assembly being pivotally mounted at its downstream end to the upstream end of a flap in the downstream assembly - flap 101 is pivotally mounted at pivot axis 1 to flap 201, and flap 102 is pivotally mounted at pivot axis 5 to flap 202. Each annular assembly of flaps comprises alternately external flaps and internal flaps, each internal flap bearing at its lateral edges against the inner surfaces of the lateral edges of the external flaps - thus the upstream assembly comprises external flaps 101 and internal flaps 102, the lateral edges 102x, 102y of each internal flap bearing against the internal surfaces of the lateral edges 101y, 101x of the external flaps 101 at each side thereof. Similarly the downstream assembly comprises external flaps 201 and internal flaps 202, the lateral edges 202x, 202y of each internal flap bearing against the internal surfaces of the lateral edges 201y, 201x of the external flaps 201 at each side thereof. Each internal flap 102 of the upstream assembly is pivotally connected to an internal flap 202 of the downstream assembly at a hinge 5 which extends the full circumferential width of the two flaps. In one of the flap assemblies, as shown the downstream assembly 201, 202, each external flap 201 is provided adjacent each of its two lateral edges with a recess 9 shaped in such a manner as to receive in a sealed manner the end of the hinge 5 associated with the pair of adjacent internal flaps 102, 202; the end of the hinge is arranged to slide in the recess in the circumferential direction of the nozzle upon variation in the inclination of the flaps. Each external flap 101 of the upstream assembly is formed with integral lever arms 101z which are pivotally connected to an actuator. Each external flap 201 of the downstream assembly is also pivotally connected at 7 to the rod 8 of an actuator. The flaps 101 are pivotally connected at their upstream ends to stator structure 3 at the axis 6. The flaps 102 are guided by means of links 33, 34 pivotally connected at their upstream ends to the stator structure 3 at the axis 6, and at their downstream ends to a guide-member 32 which is arranged to slide in grooves 30, 31 formed in projections at the outer surface of the flap 102.
Patent GB-855161-A (GB)
Title: Improvements relating to the manufacture of cycle frames and like structures
Inventor: GLOVER ALFRED JAMES
IPC: B62K19/20
Filed: 1958-05-07
Abstract: 855,161. Making cycle frames; brazing. NORMAN CYCLES Ltd. May 6, 1959 [May 7, 1958], No. 14579/58. Classes 83 (2) and 83 (4). In brazing two steel tubes, e.g. parts of a cycle frame, connected by a lug having tubular sockets in which the tubes are received with the end of one tube abutting against the wall of the other, the tubes within the lug have a co-operating tongue and slot or equivalent means having a portion mechanically deformed to hold the tubes and lug firmly together. In jointing a head tube 10, Fig. 1, to a top tube 11 and a front down tube 12 the end of the top tube is cut away at 17 to leave a projecting parallel sided or tapered tongue 18 and a slot 16, Fig. 3, pierced in the wall of the head tube. An upper lug 13 is fitted over the end of the head tube and the top tube 11 is fitted into its tubular socket 15, the tongue 18 being inserted into the slot 16 and clinched down by forcing a punch into the head tube. The front down tube 12 is similarly secured to the lower end of the head tube. In a modification an arcuate slot 22, Fig. 4, is pierced in the head tube and the end of the top tube is entered therein and deformed downwardly. An axially-extending notch may be cut in the top tube to leave two tongues which are clinched over.
Patent GB-1459651-A (GB)
Title: Apparatus for the shot-like feeding of a mixture to a mould
IPC: B29B7/76
Filed: 1974-04-02
Abstract: 1459651 Injection moulding KRAUSSMAFFEI AG 2 April 1974 [29 May 1973] 14623/74 Heading B5A Apparatus for feeding a plastics material mixture to a mould comprises a chamber 1 for mixing at least two components, a relaxation chamber 12 arranged at an angle to the mixing chamber 1 and a piston 16 for opening and closing the exit from the mixing chamber. The cross-section of the chamber at A-B in Fig. 1 may be part circular or rectangular (Figs. 2-4, not shown). The mould (not shown) may be closed (injection) or open. A control piston 3 operated by a piston 4 incorporates return passages 21, 22 whereby the component inlets 8, 9 can be connected to return conduits 10, 11. At the end of the feeding stroke the end face 17 of the piston 16 is flush with the face of the housing so that no waste remains in the chamber 12.
Patent GB-386977-A (GB)
Title: Improvements in and relating to the treatment of waste products obtained in the refining of hydrocarbon material
IPC: C07C37/72
Filed: 1931-05-18
Abstract: Phenolic bodies are recovered from the alkaline wash liquors obtained in the refining of mineral oils and particularly cracked petroleum oils by first acidifying, then subjecting the separated oily layer to distillation, treating the fraction boiling between 180 and 270 DEG C. to reduction to convert the disulphides present into mercaptans, fractionally distilling the product, oxidizing the several fractions obtained to reconvert the mercaptans into disulphides, and finally subjecting the oxidized products to fractional distillation to separate the phenols from the disulphides.  In the oil refining, the wash liquor comprises an aqueous solution of an alkali, e.g. caustic soda, in which litharge may have been dissolved.  For the acidification of the wash liquor, use is preferably made of hydrogen sulphide or gases containing it, e.g. those produced in a cracking process and the gas contacted with the liquor in counter-current in order to avoid frothing.  The resulting oily layer is preferably freed from contaminating water by the successive addition of small amounts of an acid such as sulphuric acid; in addition, any oil remaining in the aqueous wash liquor may be extracted with an organic solvent, e.g. a petroleum hydrocarbon, and added to the main oily material.  The reduction of the selected distillation fraction may be effected by means of iron and sulphuric acid and the subsequent distillation is conveniently arranged to give fractions 180-220 DEG C., 220-270 DEG  C. and a residue above 270 DEG  C.  Each of these is oxidized, preferably by introducing air into the boiling liquid. The phenolic bodies ultimately obtained are useful in the manufacture of insecticides, wood preservatives, disinfectants, and resins.  The tarry residue above 270 DEG  C. may be mixed with the oxidized fractions and used in the manufacture of wood preservatives, or may be separated by distillation into fractions comprising high-boiling phenols, mercaptans, disulphides, and asphaltic material.
Patent GB-106414-A (GB)
Title: Improvements in Clothes-washing Plungers.
Inventor: WESTLEY DANIEL WILLIAM
IPC: D06F15/00
Filed: 1916-10-16
Abstract: 106,414. Westley, D. W. Oct. 16, 1916. Washing-plungers. -The conical shell A is provided with an inner cone or cylinder B having an unrestricted open top connected to the shell by a flange B<1>. Air holes, such as A<4>, are provided in the upper part of the plunger, the lower part C forming a closed chamber in which the air is trapped.
Patent GB-1461684-A (GB)
Title: Process for the manufacture of trichloroethylene
IPC: C07C17/10
Filed: 1974-04-03
Abstract: 1461684 Production of trichloroethylene CHEMISCHE WERKE HULS AG 3 April 1974 [4 April 1973] 14755/74 Heading C2C Trichloroethylene is produced by the liquid phase chlorination of (1,2)-dichloroethane in the presence of ethylene and subsequent thermal chlorination or dehydrochlorination of the resulting reaction product, wherein (a) 1,2-dichloroethane is chlorinated in the presence of up to 10% of ethylene, relative to the chlorine employed, in a liquid medium in a bubblecolumn reactor with a molar chlorine consumption ratio of chlorine : 1,2-dichloroethane of from 0À7 : 1 to 1À4 : 1, at a temperature of from 40 to 150 C., a superficial gas velocity greater than 8 cm./sec., and a gas dwell time of from 0À3 to 10 sees., (b) the resulting chlorination product, conjointly with the chlorination product from stage (d), is completely reacted in the gas phase with from 20 to 70 mols. of chlorine per 100 mols. of chlorinated hydrocarbon at a temperature of from 380 to 500 C. and a dwell time of from 20 to 30 sees., (c) after the removal of hydrogen chloride together with any vinyl chloride present, the reaction product obtained in stage (b) is separated by distillation into a lower-boiling fraction containing predominantly dichloroethylenes, and into a higher-boiling fraction which consists predominantly of trichloroethylene together with minor amounts of perchloroethylene and high-boiling by-products, and (d) the lower-boiling fraction from stage (c) is reacted with an equimolar quantity of chlorine in a mixture of symmetrical and asymmetrical tetrachloroethanes at a temperature of from 60 to 150 C. to give tetrachloroethanes and is added, conjointly with the product from stage (a), to stage (b). Stage (a) is preferably carried out with a molar Cl 2  consumption ratio of Cl 2  : C 2  chlorinated hydrocarbons of 1 : 1 to 1.2 : 1 in a cascade of 3-10 reactors at 100-130 C. Stage (b) may be performed in an empty reaction tube at 420- 450 C. with 40-60 moles of Cl 2  per 100 moles of chlorinated hydrocarbon. Stage (d) is preferably effected at 80-105 C. and stages (a), (b) and (d) are advantageously performed at 1-20 atmospheres. The amount of ethylene used in stage (a) is usually 1-10 mol. per cent relative to the Cl 2  employed.
Patent GB-769769-A (GB)
Title: Improvements in or relating to the discharge of static electricity from fabrics andother dielectric materials
IPC: H05F3/04
Filed: 1955-05-23
Abstract: 769,769. Discharging static electricity. INSTITUT TEXTILE DE FRANCE. May 23, 1955 [Aug. 19, 1954], No. 14810/55. Class 35. Static electricity is discharged from fabrics &c. by means of a jet of gas which has been ionized by contact with a charged electrode. As shown in Fig. 1, gas from a conduit 9 is directed by a deflector 5 into contact with one or more charged needles or knife edge 2. The electrode projects from a tiltable insulating sheath 3 which may be locked in position by a nut 8. A modification is described in which air is directed on to the electrode from both sides simultaneously. If desired, two such jets of opposite polarity may be used. In a further modification, Fig. 7; a ring of points are mounted in a tube, these points being of like or opposite polarity. Air may be used. Specification 769,055 is referred to.
Patent GB-1218615-A (GB)
Title: Apparatus and process for treating an air-containing liquid/solid suspension
IPC: D21D5/26
Filed: 1968-03-28
Abstract: 1,218,615. Degassing solid/liquid suspensions. CLARK & VICARIO CORP. 28 March, 1968 [29 Dec., 1967], No. 14878/68. Heading B1M. Degassing of a liquid/solid papermaking stock suspension is effected by spraying the stock from nozzles 56, Fig. 2, or 206, Fig. 8, into chambers 46, 200 extending from a receiver 15, 210 which is maintained under reduced pressure. The inside of the receiver may be cleaned by sprays from 183, Fig. 7b.
Patent GB-908169-A (GB)
Title: Improvements in or relating to the manufacture of films
Inventor: ROBINSON WILLIAM
IPC: B29C55/28
Filed: 1959-05-01
Abstract: <PICT:0908169/IV(a)/1> In a process in which a tube or tubular film of organic thermoplastic material, such as polyethylene terephthalate or polypropylene, is continuously passed through zones at different temperatures, the atmosphere of one zone is separated from that of the next by a baffle, formed of flexible sheet material, which fits snugly around the tube, at least the surface of the baffle in contact with the tube consisting of polytetrafluoroethylene.  A preferred construction of the baffle comprises two sheets of P.T.F.E., or of fibre material impregnated or coated with it, having circular apertures, of diameter less than that of the tube, and which are partially segmented by cuts extending radically from the aperture, the sheets being positioned so that the cuts in one sheet lie between those of the other.  The fibre sheets 1, 2, Fig. 2, are supported by a stiff rubber sheet 5, the three sheets being clamped between rigid, apertured sheets of compressed asbestos fibre 6.
Patent GB-845682-A (GB)
Title: Improvements relating to ion-exchange processes
Inventor: SARGENT LAURENCE ARTHUR
IPC: B01J47/10
Filed: 1958-05-09
Abstract: In the regeneration or elution of a bed of ion-exchanger, the amount of liquid introduced into the bed is proportional to the amount of exchanger which is removed periodically from the bed. The liquid is introduced intermittently, e.g. by means of a reciprocating pump, between the ends of the bed while the material is being removed from the bed.ALSO:In the regeneration or elution of a bed of ion-exchange, water softening material the amount of liquid injected into the bed is proportional to the amount of exchanger being periodically removed from the bed.  The liquid is injected intermittently e.g. by means of a reciprocating pump between the ends of the bed while the material is being removed from the bed.