baber/WOPTO huggingface dataset:
Patent GB-1092846-A (GB)
Title: Improvements in new compound and catalyst
IPC: B01J31/22
Filed: 1966-05-26
Abstract: 1,3- or 1,5-cyclooctadienes are isomerized to a mixture containing a major proportion of the 1,4-isomer by reacting the cyclooctadiene with palladium chloride in an alcohol or a carboxylic acid with 1-4 carbon atoms.  The complex thus formed is decomposed with a strong field ligand (as defined), e.g. an alkali metal cyanide or with methanolic alkali to yield the 1,4-cyclooctadiene isomer.ALSO:Aliphatic dienes and bicyclic dienes and olefins undergo emulsion polymerization in the presence of a cyclooctadiene palladium chloride complex (for preparation see Division C2). The polymerization is performed at a temperature between 0 DEG  and 100 DEG C.; the emulsifier preferably being anionic, e.g. an alkali metal salt of an alkyl sulphate or alkyl aryl sulphonate, a typical formulation being: complex 0.01-0.5 parts; monomer 10-60 parts; emulsifier 2.5-10 parts and water 100 parts, all parts being by weight.  The examples specify polymerization of norbornene, norbornadiene and butadiene.ALSO:A complex reaction product of 1,3 and 1,4 cyclooctadiene and palladium chloride is obtained by mixing the palladium chloride (one mole) with the cyclooctadiene (1 to 100 moles) in a solvent in which the reactants are soluble but the product is not, at a temperature between 0 and 100 DEG  C.  Suitable solvents are alcohols or carboxylic acids with 1 to 4 carbon atoms.
Patent GB-879152-A (GB)
Title: Improvements in or relating to collets and other workholders
Inventor: LINZELL CECIL JOHN
IPC: B23B31/20
Filed: 1959-07-10
Abstract: 879,152. Work-holders. CRAWFORD COLLETS Ltd. Jan. 4, 1960 [July 10, 1959], No. 23718/59. Class 83 (3). A collet or like workholder 10 having jaws 10b comprises work-engaging pads 11 removably secured to the jaws by pins 12. Each pad has a collar 11a engaging a groove 10c in the jaws, and a dovetail slot 11b, the faces 11c, 11e on the collar being tapered to engage corresponding faces on the pin 12. Each pin is mounted in a recess 10d in a jaw, and is urged axially by a spring 13, the upper limit of the pin being controlled by a screw 12 in the jaw, located in a slot on the pin. In operation, the pins 12 are depressed, and the pads inserted in the collet. The pins are then released so as to be moved axially by the springs, and the dovetails are engaged, thus locking the pads in the collet bore. In a modification, the male dovetail is on the pad, and the female dovetail is on the pin. In a further modification the pins are moved axially by screws in the end of the jaws. In a still further modification the groove 10c is in the pads, and the collar 11a is in the jaws.
Patent GB-367728-A (GB)
Title: Process and apparatus for cracking hydrocarbons
IPC: C10G9/36
Filed: 1931-08-24
Abstract: In a process for cracking oils of the kind in which the oils are cracked in the vapour phase by contact with a neutral heated carrier gas and the cracked vapours are stripped by contact with the crude oils which is then partially vaporized, the degree of vaporization of the crude stock is controlled by admitting to the scrubbing zone a regulated supply of a heated neutral gas, e.g. the carrier gas condensate from a fractionating tower 43, preheated and superheated in furnaces 27, 31, separated by a flash chamber 29, is passed through a pipe 32 into a cracking chamber 21 where it is cracked by contact with carrier gas heated to about 1500-1800 DEG  F. in a stove 13.  The products pass to a tower 35 when they are stripped by contact with crude oil admitted from a tank 37.  The vapours pass to the <PICT:0367728/III/1> tower 43 where fractions suitable for cracking are condensed while the lighter constituents flow to a condenser 47 and storage tank 49.  The gaseous constituents are recycled by a pump through a line 55, and purifier 57 to a heat exchanger 61 where they are heated to about 500 DEG  F. by heat exchange with the unvaporized residues from the scrubber 35, the temperature being regulated by a byepass 73.  The gases are then recycled in part to the stove 13 and in part through a line 65 and valved lines 67, 69, 71 to the cracking chamber 21, the line 33, or the stripping tower 35 in order to control the evaporation of the crude stock.
Patent GB-170275-A (GB)
Title: Method of treating fuel of vegetable origin with a view to increasing its efficiency
IPC: C10L5/12
Filed: 1921-09-06
Abstract: 170,275. Crespin, L. Oct. 15, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Composition fuel. - Lignite or similar fuel of vegetable origin is mixed with about 2 to 6 per cent of potassium salts, for example chloride, sulphide, carbonate, &c., and the mass is converted by hand or mechanical means into blocks, briquettes, or balls, and dried. The ashes on combustion form a slag or scoria.
Patent GB-716305-A (GB)
Title: Winding and release device for dynamo-electrical ignition machines
IPC: F42D1/045
Filed: 1952-09-23
Abstract: 716,305. Driving dynamos. GLOSSL, K. SCHAFFLER-, [trading as SCHAFFLER & CO.]. Sept. 23. 1952 [March 25, 1952], No. 23822/52. Class 35 A generator accelerating mechanism has a shaft 1 connected to an energizing spring 10 and a winding spindle 11 connected to the shaft 1 through gearing 12, 13, 2 which is disengaged before the spring starts to run down so that the winding spindle is not driven round by the spring during the fifiring motion. The gear 2 is fixed to the shaft 1 which also carries a relatively rotatable sleeve 5 to which it is coupled in one sense only by a ratchet 6. The sleeves carries a control cam 7 which drives a cam 8 with considerable lost-motion through a pin 8a. The cam 8 is free on. the sleeve, its outer edge engaging a pawl 24 on the firing spindle 19 to prevent firing until the spring is fully wound, at which point the pawl comes opposite a gap 8c. The cam 8 also has a pin 8b driving the rotary part of an ignition switch 9 whose body is secured against rotation by a lug 9b. The spring 10 is fixed to the sleeve. The intermediate gear 13 is mounted to be swung into or out of engagement with the gear 2 on a plate 14 pivoted on the spindle 11. Also pivoted on this spindle is a releasing pawl 15 which restrains the return motion of the spring until detached from a ratchet wheel 3 fixed to the gear 2. At the commencement of the winding of spindle 11, a follower 25 is caused to rotate and present its recessed part to a boss 12a of the gear 12, thus allowing the long arm of the interlocking member 20 to move away from pin 18 and so allow the gear 13 and pawl 15 to 'engage. When winding is completed pawl 24 faces gap 8c in cam 8 and the firing spindle 19 can be turned so that arm 20 presses on pin 18, thus disengaging the winding gear 13 and pawl 15 from the spring shaft, the pawl having a snap-action produced by a spring 17. This shaft then rotates driving generator pinion 4 and the cam 7 engages rod 8a to rotate the cam 8 to its initial position and operates the firing switch 9. Turning the spindle 19 also allows the pawl 25 to turn under the action of a spring (not shown) and present its end to the boss 12a, thus preventing re-engagement of the gear until the spindle 11 is turned. Specification 356,932 is referred to.
Patent GB-680959-A (GB)
Title: Improvements in or relating to a selector switch for communication installations
IPC: H01H67/16
Filed: 1950-09-29
Abstract: 680,959. Automatic exchange switches. SIEMENS & HALSKE AKT.-GES. Sept. 29, 1950 [Sept. 30, 1949], No. 23933/50. Class 40 (iv). The wiper carriage 3 of a vertical and rotary switch is driven in both directions by a screw gear 9, 10, which may be of any suitable form and is unidirectionally rotated by a step-bystep motor (not shown). During vertical stepping, rotation of the wiper carriage is prevented by the engagement of members 11, 15, Fig. 1, or 21, 22, Fig. 5. An electromagnet 14 withdraws the member 15 or 21 to allow rotary stepping under the guidance of member 13, Fig. 1, or 22, Fig. 5. The toothed members 11, 21 have deeper recesses corresponding to the last vertical step to ensure that rotary stepping takes place at this stage. In Fig. 5, the release of magnet 14 causes the member 21 to press upon the member 22 so that the wipers 5 are moved into engagement with the selected contacts. In a modification (not shown), the guide plate 22 has a toothed circumference. On the release of magnet 14, the member 21 enters a recess between two teeth and further rotation of the screw gear causes the wipers to be lifted on to the selected contacts. Release is effected by the motor and a restoring spring 6, the wipers completing one revolution along a path abcdea, Fig. 1. Specification 506,483 is referred to.
Patent GB-1489120-A (GB)
Title: Noise suppressed gaseous fuel burner
IPC: F23M20/00
Filed: 1975-06-03
Abstract: 1489120 Gas burners SELAS CORP OF AMERICA 3 June 1975 [3 Oct 1974] 23997/75 Heading F4T A noise suppressed gas burner comprises a mixing chamber 3 for gas and air, an elongate passage leading from the chamber towards a furnace 1 and an inlet passageway for the air which is lined with sound absorbing material 24, 26. Chamber 3 includes a venturi portion 3 inserted in the furnace wall 1, 2, and a cylindrical casing 17, 21, spaced from the bell 7 of portion 3, the layer 24 of sound absorbing material surrounding the bell, thus forming the annular primary air passage between the materials 24, 26, and means 11 to discharge gas under pressure into the bell. An axially-adjustable secondary air shutter 5, and an axially-adjustable primary air shutter 13, are provided, the latter also having sound absorbing material 28 fixed thereon. The end face of casing part 17 has a central opening 22 and a plurality of arcuate openings 23, through which the primary air flows.
Patent GB-1040261-A (GB)
Title: An improved electrical power supply circuit
Inventor: MASON ROGER BARTON
IPC: G05F1/563
Filed: 1962-06-21
Abstract: 1,040,261. Automatic voltage control. SOLARTRON ELECTRONIC GROUP Ltd. June 17, 1963 [June 21, 1962], No. 2400/62. Heading G3R. A power supply circuit for supplying a stabilized voltage at output terminals 25, 26 comprises input terminals 16, 17 connected to an unstabilized unidirectional voltage source 10-15, a switching transistor 18 and a capacitor 19 connected in series across the terminals 16 and 17, a circuit including a transistor 21 for stabilizing the voltage appearing across the capacitor 19 and a bi-stable control circuit 20 which controls the switching transistor 18. The impedance of transistor 21 is controlled in known manner, by a circuit including a potential divider 22, 23, a reference Zener diode 27 and an amplifier 24, to maintain a constant voltage at terminals 25, 26, and the power dissipation in the transistor 21 is kept below a pre-determined level by the operation of control circuit 20 whose input circuit is connected across the transistor 21 and whose output is applied to the base of transistor 18. The arrangement is such that transistor 18 is switched continually from a fully conducting state, when capacitor 19 charges from the unstabilized input source, to a non-conducting state, when the capacitor 19 discharges into the load, as the voltage across transistor 21 rises and falls within predetermined limits. Thus, neither transistor can be overloaded, since transistor 18 is either non-conducting or fully conducting whilst the voltage across transistor 21 is maintained below a level at which the power dissipation would be excessive. The transistor 18 may be connected in parallel with the input terminals and the transistor 21 in parallel with the load. Valves may replace the transistors in the circuit which may also be arranged to maintain current constant. A detailed circuit arrangement including overload protection is described with reference to the drawing accompanying the complete Specification (not shown).
Patent GB-1023575-A (GB)
Title: Improvements in or relating to the coating of objects
Inventor: BARFORD JOHN COWPER
IPC: B05D1/00
Filed: 1962-06-22
Abstract: <PICT:1023575/C1/1> A method of coating an object with a powder material such as a glass or ceramic consists in mechanically agitating a mass of powder to disperse the powder particles by means of one or more charging electrodes which become immersed in the powder and which are maintained at a potential difference with respect to the object so as electrostatically to charge the dispersed powder particles, and electrostatically attracting the charged particles on to the object to be coated.  Apparatus for carrying out the process may comprise a trough-shaped container 1 for the powder, a plurality of rotating electrodes 2 bearing blades or spikes, means for rotating the electrodes, and means for applying a high potential between the electrodes and the substrate 5 to be coated which may be a strip, wire or mesh and may be made of metal, wood, asbestos paper or fabric.  The substrate may be heated before or after coating to fuse or sinter the powder.
Patent GB-692629-A (GB)
Title: Improvements in mechanical stokers
IPC: F23K3/00
Filed: 1950-10-02
Abstract: 692,629. Mechanical stokers. BABCOCK & WILCOX, Ltd. Oct. 2, 1950 [May 9, 1949], No. 24089/50. Class 51(i) [Also in Group XXX] A combustion apparatus comprises a travelling grate, mechanical feeding means which supply fuel at a controlled rate on to an upwardly-inclined feed plate and fluid discharge means adapted continuously to discharge gaseous fluid over the plate into a furnace chamber and thereby project fuel from the plate on to the travelling grate. As shown in the Figure, fuel from a hopper 1 is fed by. rams 3 on to an upwardly-inclined feed plate 12 and in front of a nozzle 11 which directs air over the plate and into the furnace chamber. The nozzle may be in the form of a continuous slot or may be replaced by a number of separate nozzles.
Patent GB-403343-A (GB)
Title: Jet device for propelling vessels
IPC: B63H11/12
Filed: 1933-08-30
Abstract: 403,343. Jet propulsion of ships. WALLIN, A. F., Sk÷nvik, Sweden. Aug. 30, 1933, No. 24090. Convention date, Aug. 31, 1932. [Class 114.] A jet device for propelling ships comprises a nozzle surrounded by a drum located longitudinally and outside the vessel, and is characterised by the provision of a cone in the mouth of the nozzle whereby the steam or gas jet is spread and helps to induce the flow of the surrounding medium through the drum. A drum-shaped casing 4 is attached to the bottom of the boat by brackets 16 and contains within it a nozzleshaped member 5, 6 having pipe connections 9, 3 with a steam generator. The nozzles are provided with cone-shaped members 11 disposed with their conical surfaces in a direction to spread the outflowing steam of gas. To prevent vibration the stems 12 of the cones are supported in lugs 13 and the conical surfaces may, if desired, be grooved.
Patent GB-1335739-A (GB)
Title: Forging hammer tup
IPC: B21J13/06
Filed: 1971-04-19
Abstract: 1335739 Forging; making forging hammer tups; welding by fusion FRIED KRUPP HUTTENWERKE AG 19 April 1971 [18 March 1970] 24134/71 Headings B3A B3H and B3R [Also in Division C7] A forging hammer tup comprises a solid shank 1 welded at 2 to a foot member 3. Steel shank and foot members 1, 3 each formed from a single cast, forged or rolled component or a number of components welded together, are first hardened and tempered before they are welded together by an electro-slag, a submergedarc or an inert-gas metal-arc process. The shank 1 of the tup is surrounded by a weld layer 9 surface hardened by burnishing or peening. Steel buttering layers 4 containing 0À03-0À30% C, 0À10-0À50% Si and 0À10-0À90% Mn may be applied to the members 1, 3 to facilitate the welding operation. The foot member 3 has a fibre flow transverse to that of the shank 1. The connecting 2 and covering 9 welds are of steel  containing 0À03-0À20% C, 0À30-0À90% Si, 0À30-1À5% Mn, 0À50-3À5% Cr, 0-2À0% Mo, 0-1À5% Ni, 0-0À90% V and 0-1À2% W.
Patent GB-1179008-A (GB)
Title: Refiner Installation
IPC: B02C7/11
Filed: 1967-08-09
Abstract: 1,179,008. Disc refiners. BAUER BROS. CO. 9 Aug., 1967 [16 Sept., 1966], No. 24189/ 68. Divided out of 1,179,007. Heading B2A. The refiner is identical with that described in Specification 1,179,007 but the claims are directed to the refiner base.
Patent GB-1463061-A (GB)
Title: Illuminable element
IPC: G09F13/18
Filed: 1973-05-22
Abstract: 1463061 Light guides LUCAS ELECTRICAL Ltd 6 May 1974 [22 May 1973] 24240/73 Heading G2J An illuminable element e.g. for the station indicator of a radio comprises an elongate strip of transparent material e.g. a polycarbonate having the shape shown. The indicia are carried by or adjacent to the rear face 14. Light enters the element through the prisms 18, 19 which deflect it towards inclined surfaces 21, 22 and thence to upper edge surface 12. The light undergoes multiple intonal reflections along the length of the strip, some of it being scattered out of the plane of the strip on to inclined portions 16, 17 of the front face 15 which reflect the light toward the rear face 14. The indicia may be arranged in two horizontal rows illuminated from portions 16, 17 respectively.
Patent GB-617120-A (GB)
Title: Improvements relating to strainers for the wires employed in wire fencing
IPC: F16G11/12
Filed: 1946-08-15
Abstract: 617,120. Strainers. BAILDHAM, E., and HENSON, S. R. Aug. 15, 1946. No. 24267. [Class 45] A wire strainer for fencing or the like com prises a cylindrical meta rod 9 transversely mounted on a post witt its ends projecting or either side, one end of the rod having a dia metrical bore 9a for re ceiving the end of the wire 8, and the other end 9b of the rod being adapted for rotation by a box spanner, while the central portion of the rod is provided with one or more diametrical bores 9c for a detachable locking pin 12. The rod is mounted in a bracket 10 either of the saddle type or of the kind having a circular bore. In a modification, the rod may be mounted in two eyelets screwed into the post. The wire may be stapled to the post after tensioning.
Patent GB-406674-A (GB)
Title: Improvements in or relating to modulated carrier wave transmitting systems
IPC: H03C3/18
Filed: 1932-08-31
Abstract: 406,674. Valve modulating circuits ; impedance networks. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Crosby, M. G. ; Riverhead, Long Island, New York, U.S.A.) Aug. 31, 1932, No. 24323. Convention date, Sept. 19, 1931. [Classes 39 (i), 40 (iii), and 40 (v).] To effect phase modulation the effective length of an artificial line intermediate a source of carrier current and an output circuit is varied in accordance with the signals to be transmitted. In one embodiment a carrier current source 1 is coupled through an artificial line 20, limiter L, frequency multiplier and power amplifier PAM, to an aerial 10. Part of the distributed capacity of the line is constituted by glow discharge tubes 19 which comprise an external electrode and two internal electrodes, the intensity of the discharge between which varies the effective capacity between the internal and external electrodes, this variation being effected by changing potentials across the output choke MC of a modulating valve 11 controlled by a microphone 16. Radio frequency choke coils 21 are connected between each tube 19 and the choke MC. In a modification a single glow discharge tube 21, Fig. 2, has an artificial line helically wound therein or round the outside of the tube in close proximity thereto. The capacity of the line to earth is varied by changing the glow tube current. In other modifications the effective inductance per unit length of the line is modulated by varying the modulating valve impedance shunted across inductances coupled to the line at various points, or the plate impedance of the modulator valve is in series with the capacity of the line to earth. The Specification as open to inspection under Sect. 91 comprises also the phase modulation of a carrier current by utilizing capacitive and inductive couplings between the modulating device and the output of a carrier current amplifying valve. Thus the tuned output circuit 12, 13, Fig. 3 (Cancelled) of a carrier amplifying valve 3 has coupled theretothe output circuits of a pair of push-pull modulating valves 23, 24, one capacitively through condenser 14 and the other inductively through inductance 18, to effect phase modulation. Single capacitive and inductive coupling circuits are also described. This subject-matter does not appear in the Specification as accepted.
Patent GB-406675-A (GB)
Title: Improvements in or relating to the production of liquid fuel
IPC: C10L1/32
Filed: 1932-08-31
Abstract: Colloidal fuel is made by feeding oil and finely divided solid fuel independently to a chamber having a rotary mixer, and passing the mixture through a static emulsifier.  For example, oil at 180 DEG  F. is fed from a reservoir e through a pipe g, and powdered fuel of 200 mesh per linear inch from a hopper a through a pipe b, to a steam-jacketed chamber d provided with one or more helical mixing vanes j having on their upper surfaces studs k or like projections preferably square and about \ba1/2\be" diameter and 3" high; the mixture is withdrawn through a valve p by a pump q, and forced through an emulsifier r comprising spaced plates s formed with perforations about 1" sq.  According to the Provisional Specification the preferred solid fuel is coal which has been submitted to low-temperature carbonization. <PICT:0406675/III/1>
Patent GB-393635-A (GB)
Title: A method of obtaining a substance which reduces hyperglycemia
IPC: A61K36/8962
Filed: 1931-08-31
Abstract: A medicinal substance serving to reduce hyperglyc mia is obtained by treating yeast with picric acid, extracting the picrate of the active substance with dilute alcohol, precipitating it from the extract with strong alcohol, and treating the picrate so obtained with an alkaline substance, such as sodium phosphate or hydroxide, to set free the active substance.  The process is carried out in the cold.  Known processes are referred to according to which (1) onion is frozen with solid CO2, crushed, placed in boiling water, and the filtered solution treated with strong alcohol to precipitate an active substance; and (2) yeast is extracted with strong alcohol, the extract concentrated in vacuo, and an active substance precipitated by addition of ammonium sulphate.