baber/WOPTO huggingface dataset:
Patent GB-1513329-A (GB)
Title: Tyre buffing machine blades
IPC: B29D30/54
Filed: 1976-04-20
Abstract: 1513329 Rasping tyres B & J MFG CO 20 April 1976 [12 Dec 1975] 15939/76 Heading B4B A replaceable blade 20 for a rotatable tyre rasp comprises a working edge portion 24 provided with a number of teeth 30 each having a leading edge, a body portion 22 for mounting the blade on the rasp, and means 50 for providing enforced circulation of air to dissipate heat generated in the teeth. The heat dissipating means is in the form of holes 50 which may be of various shapes, Figs. 13 to 18 (not shown) and formed with depressions so as to provide scoop-like openings as shown in Figs. 10, 10a. The working edge may be straight, Fig. 22 (not shown) instead of curved and only a single tooth may be formed on the blade as shown in Fig. 24. The blades are separated by spacers SP and clamped between plates RT, RP to form the rasp.
Patent GB-886212-A (GB)
Title: Process for the manufacture of anhydrous magnesium chloride
IPC: C01F5/32
Filed: 1960-05-05
Abstract: <PICT:0886212/III/1> In a process for the manufacture of anhydrous magnesium chloride free from magnesium oxide, a salt consisting mainly of magnesium chloride and containing 1 to 5% by weight of water and 2 to 6% by weight of magnesium oxide is continuously fed by a charging device 1 to a stirred bath 2 of molten magnesium chloride where it is melted and then passed through an overflow 5 to a tower 4 packed with carbonaceous material down which the melt trickles and is chlorinated by chlorine, phosgene, a mixture of carbon monoxide and chlorine, a chlorinated hydrocarbon vapour, or hydrogen chloride, introduced at inlet 9, the hydrogen chloride evolved by hydrolysis when the salt is melted entering the tower 4 with the melt and being used as additional chlorinating agent.  Anhydrous magnesium chloride free of magnesium oxide is discharged continuously at outlet 7.  The tower is heated by electrodes 10. The carbonaceous material may be coal or coke.  Waste gases may be removed by gas outlet 12, the hydrogen chloride being recovered and mixed with chlorinating gases entering at 9, or the waste gases may be removed at outlet 8 whereby the melt is partially chlorinated by the hydrogen chloride in the upper part of the tower 4 and the chlorination completed in the lower part; in the latter case chlorinating gas is introduced at inlet 11. The process is carried out at 750 DEG  to 900 DEG C. and the chlorinating gases are preheated.  An apron 6 prevents unmelted material entering tower 4.  In examples magnesium chloride containing water, magnesium oxide, magnesium sulphate, and sodium and potassium chlorides, is chlorinated.
Patent GB-1031094-A (GB)
Title: Improvements in or relating to dischargers for pyrotechnic devices
Inventor: SCHERMULY CHARLES
IPC: F41F1/00
Filed: 1962-04-27
Abstract: 1,031,094. Pyrotechnic apparatus. SCHERMULY Ltd. April 26, 1963 [April 27, 1962], No. 16118/62. Addition to 863,727. Heading F3A. The igniter of the combined pyrotechnic device, discharger and support member as claimed in claim 1 of the parent Specification is a percussion igniter 46 initiated by an electrically actuated striker mechanism 47. The mechanism 47 comprises a solenoid winding 50 and a movable steel core 48 forming the striker rod. When the winding 50 is de-energized a spring 53 holds the rod 48 away from the igniter 46. When the winding is energized the rod 48 moves against the action of the spring to initiate the igniter.
Patent GB-942367-A (GB)
Title: Continuous production of carboxylic acids from olefines, carbon monoxide and water
Inventor: HIMMEBE WALTER
IPC: C07C51/14
Filed: 1962-04-27
Abstract: In a process for the continuous production of aliphatic and cycloaliphatic carboxylic acids by reaction of olefines, alcohols, alkyl halides or mercaptans with carbon monoxide in presence of an inorganic strongly acid catalyst under increased pressure and at -25 to +40 DEG C., the catalyst and starting material are trickled under carbon monoxide pressure through a packed tower and the reaction product is hydrolysed with ice or water.  Preferably the starting material is introduced into the tower below the point of introduction of the catalyst.  In examples, using sulphuric acid catalyst, cyclohexene is converted to cyclohexane- and 1-methylcyclopentanecarboxylic acids, tertiary butyl alcohol to trimethylacetic acid and 2-ethyhexanol to a methyl-a -ethylcaproic acid.  Other suitable starting materials are propylene, butylene, isobutylene, pentenes, hexenes, nonenes, hexadecenes, cyclooctene, cyclododecene, isopropanol, methyl isobutyl carbinol, cyclohexanol, methylcyclohexanol, decahydronaphthol, octanol, sec. or tert. butylmercaptan, decyl and dodecyl mercaptans, tert-butyl and cyclohexyl chlorides and 2-ethylhexylbromide.  Alternative catalysts are boron triflouride (or hydrates) and phosphoric acid. The starting materials may be dissolved in inert solvents (cyclohexane in examples) e.g. n-octane, or cyclo-pentane or -octane.  The tower packing may be e.g. cylindrical, annular, conical or saddle-shaped; aluminium oxide strands and Raschig rings are used in examples, while active carbon and alloy steel are also suitable.
Patent GB-457535-A (GB)
Title: Manufacture of 4-amino-6-methyl-3:4-dinitrodiphenylamine
IPC: C09B29/20
Filed: 1935-06-04
Abstract: 4 - Amino - 6 - methyl - 3 : 4<1> - dinitrodiphenylamine is made by condensing 4-nitro-1-chlorobenzene-2-sulphonic acid with 1 : 4-diamino-3-nitro-6-methylbenzene and splitting off the sulphonic group from the 4-amino-6-methyl-3 : 4<1>-dinitrodiphenylamine - 2<1> - sulphonic acid thus obtained.  It is an azo dye intermediate.  In the example, the condensation is effected under pressure in presence of water and calcium carbonate and the sulphonic acid group is split off by heating with sulphuric acid.  Specification 457,534 is referred to.
Patent GB-313080-A (GB)
Title: Improvements relating to containers for syrups, honey and other viscid fluids
IPC: B65D1/10
Filed: 1929-05-27
Abstract: 313,080. Flesselles, W. F. May 27, 1929. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 7, 1929]. Modified for supporting spoons.-A jar for syrup &c. is provided with means for supporting the bowl of a spoon, leaving the handle portion projecting out of the receptacle. As shown, the support consists of a ledge 4, which is continuous around, and whose upper and lower faces are disposed at an oblique angle to, the wall of the container. The Specification as open to inspection under Sect. 91 (3) (a) described a stirrup-shaped rest, or a detachable rest of resilient material fitted within, and adjacent to, the mouth of the receptacle as alternatives. This subject-matter does not appear in the Specification as accepted.
Patent GB-462377-A (GB)
Title: Improvements in or relating to coupling devices
IPC: F16D41/02
Filed: 1935-06-05
Abstract: 462,377. Clutches. PENOT, R. E. M. June 5, 1935, No. 16311. Void. Convention date, June 9, 1934. [Class 80 (ii)] Rollers or balls 5 arranged between the cylindrical inner surface of a drum 1, secured to a driving shaft 2, and inclined surfaces 4 of an internal driven member 3 are normally urged to wedging position by springs 6. A disc 7, mounted loosely on the hub of the member 3 and connected thereto by a spring 10, is furnished with pins 9 which engage the rollers, so as to move them from wedging position, when the disc is arrested by a pivoted arm 11 engageable with one or more abutments 8 on the disc. Rebound of the member 3 may be prevented by a pawl, or friction means which tend constantly to rotate the member 3 may be provided. The hub of the member 3 may have a slight clearance on the shaft 2, so as to equalize the load on the rollers. The rollers may alternatively be carried loosely on the pins 9, the springs 6 being then dispensed with, and the driven member may be external to the driving member, in which case the inclined surfaces 4 are formed in the inner surface of the external driven member. The clutch may be used in the apparatus described in Specification 434,021, [Group XL].
Patent GB-544955-A (GB)
Title: Improvements in spark distributors for magneto electric machines
IPC: F02P7/02
Filed: 1940-11-11
Abstract: 544,955. Rotary distributers. BRITISH THOMSON-HOUSTON CO., Ltd., and FARDON, G. E. Nov. 11, 1940, No. 16312. [Class 38 (v)] In a spark-jump rotary distributer that is screened against radio interference the spark electrodes 6, to which current is successively conveyed, are moulded in an insulating block 5 secured to a metal casing 1 and screened cables from the spark plugs as well as the screened cable 12a from the magneto 17 enter the casing 1 through holes where the metal braid of the cables is secured to the casing, e.g. by hollow clamping nuts 15. The centre contact 18 of the distributer, whence the current passes to the rotatable brush (not shown), has a spike 18a making contact with the end of the cable 12a and the, electrodes 6 have similar spikes engaging the ends of their cables. Specification 230,902, [Class 38 (v)], is referred to
Patent GB-167053-A (GB)
Title: Improvements in or relating to aerial ropeways
IPC: B61B12/02
Filed: 1920-06-17
Abstract: 167,053. Shields, H. r. H. June 17, 1920. Tip-buckets.-An aerial ropeway of the bi-cable type has a tip-bucket fitted with releasing mechanism which is operated by reversing the movement of the carrier. The bucket 10 is suspended by a bail 11 from a carrier 13 having wheels 14 running on the supporting cable 16, the carrier being traversed thereon by means of a hauling- cable 17. To discharge the bucket it is caused to move backwards thus causing the carrier wheel 14 through a one-way clutch to rotate sprocket gearing 30, the lower gear-wheel 31 of which carries a pin 32 adapted to engage the hooked end of a lever 21 connected to the tripping- bolt 18.
Patent GB-280466-A (GB)
Title: Improvements in door fasteners and the like
IPC: E05B63/20
Filed: 1927-06-21
Abstract: 280,466. Oakes, F. June 21, 1927. Sliding bolts for doors have a projection engaging a spring catch to hold them withdrawn until the door is closed, when the catch mechanism is tripped allowing a spring to shoot the bolt. The bolt A has a lug C engaging a catch K, and an operating knob L. When the door is closed, the projecting part of the bolt catches on the bolt socket and tilts the bolt to rip the lug C over the catch K and allow the spring D to shoot the bolt.
Patent GB-153331-A (GB)
Title: Improvements in and relating to enclosed electric arc devices
IPC: H01J17/58
Filed: 1916-11-16
Abstract: 153,331. British Thomson - Houston Co., (General Electric Co.). Nov. 16, 1916. Arc lamps.-In an enclosed arc device having a cathode maintained incandescent independently of the arc, an inert gas filling serving to check electric disintegration of the cathode is kept pure by a substance which combines with foreign gases, such as nitrogen, hydrogen, and water vapour, evolved by the electrodes and envelope during use. The resulting compounds have negligible vapour pressure. Lower electric pressures are then sufficient. Phosphorus pentoxide may be employed when the buib is filled with nitrogen. For tne monatomic gases, argon, neon, krypton, xenon, and helium, either magnesium, calcium, or a similar metal is suitable,. but phosphorus pentoxide, it is stated, also appears to combine with hydrogen and nitrogen to some extent. Carbon monoxide may also be used for filling the bulb. The gas pressure may vary from several mm. of mercury to about an atmosphere. For a low-voltage rectifier, argon at 5-12 cm. of mercury is suitable. In a neon tube, the pressure may be half an atmosphere. The purifying substance, in the form of wire or strip, may be wrapped around a leading-in wire near the incandescent cathode, so as to become vaporized; or the substance may be enclosed in a sealed capsule 10 which is placed in an open tube 11 and broken by shaking after the bulb is sealed. The incandescent cathode 2 may be of material fusing above about 2000 C. such as tungsten, tantalum, or carbon. The anode 3 may be of tungsten, carbon, mercury, or the like. An envelope of sodiummagnesium boro-silicate glass may be used.
Patent GB-1093829-A (GB)
Title: Guillotine shear of the upcut type
Inventor: ROSS HUGH MACDONALD
IPC: B23D15/14
Filed: 1964-04-21
Abstract: 1,093,829. Shearing. LOEWY ENGINEERING CO. Ltd. March 17, 1965 [April 21, 1964], No. 16464/64. Heading B3W. An hydraulically operated up-cut guillotine shear has an hydraulically operated toggle mechanism for lifting the upper blade, independently of the lower blade, away from the plane of feed and support of the workpiece, to allow a workpiece the leading end of which is curled, to enter the shear. The lower blade 6, which is inclined at an angle to the upper blade, is raised to make the cut by two hydraulic cylinders 12 mounted in a base 2. The upper blade 10 is mounted in a cross-beam 8 which at each end is pivotally attached at 25 to one arm 16 of a bell-crank 24. The middle of the bell crank is connected by a pivot pin 22 to the top of an arm 15, which at its lower end is pivotally attached to the base 2 by an axle 18. The other arm 26 of the bell crank is connected by a pivot pin 28 to the piston of an hydraulic cylinder 34, and the cylinder itself is pivotally attached to the link 15. When the cylinder 34 is fully extended the toggle links 15 and 16 are in line and the upper blade 10 is in its lowest position. To raise the upper blade 10, the piston is retracted into the cylinder 34, the links 15 swing outwards and the bell cranks rotate to lift the cross-beam 8, Fig. 3 (not shown). The links 15 also form the side members of the shear frame. Hydraulic pressure is maintained in the lower ends of the cylinders 34 to resist the cutting forces, during the cut.
Patent GB-905466-A (GB)
Title: Improvements in and relating to the control of automatically actuated clutches
IPC: B60K23/02
Filed: 1959-05-13
Abstract: 905,466. Operating clutches. FICHTEL & SACHS A.G. May 13, 1959 [June 20, 1958], No. 16497/59. Class 80 (2). The engagement of an automatically actuated clutch in a vehicle is controlled in dependence upon the engine exhaust pressure. In one embodiment an engine-suction servomotor (not shown) controls the clutch, and is connected through a line 7 to an engine induction connection 8 under the control of a valve 5, the servomotor being open to the atmosphere to engage the clutch when a throttle valve 4 is opened by engine exhaust pressure in a chamber 11 acting on a diaphragm 6. An adjustable spring 13 determines the pressure required to open this valve. A throttle may be interposed between chamber 11 and the engine exhaust system to slow the response. In a modification valve 4 is opened by a pendulum in response to acceleration of the vehicle, and the diaphragm 6 either limits the action of the pendulum, or supplements the action of the pendulum. In another modification the opening of the valve 4 is controlled by the inlet manifold suction in addition to the engine exhaust pressure. In further modifications the exhaust pressure acts on a diaphragm or piston successively shorting out series-connected resistors in the circuit of an electromagnetic clutch.
Patent GB-772213-A (GB)
Title: Improvements in and relating to dithiophosphoric acid esters
IPC: C07F9/165
Filed: 1955-06-08
Abstract: The invention comprises dithiophosphoric esters of the formula <FORM:0772213/IV(b)/1> wherein R is alkyl of up to 3 carbon atoms, X and Y are hydrogen, halogen, alkyl or alkoxy or nitro of not more than 4 carbon atoms, and 2 is hydrogen, halogen, or lower alkyl, and a process of making them by condensing a halogenmethyl-aryl-sulphide of the formula <FORM:0772213/IV(b)/2> (where Hal is chlorine or bromine) with an alkali salt of an acid dithiophosphoric acid O,O-dialkyl ester of the formula <FORM:0772213/IV(b)/3> The compounds have acaricidal properties (see Group VI).  The halogenmethylaryl sulphides above are made by the action of formaldehyde and hydrogen halide on aryl mercaptans of the formula  <FORM:0772213/IV(b)/4> An example describes the reaction of 3,4-dichloro - thiophenol with formaldehyde and hydrochloric acid to give 3,4-dichlorophenylchloromethyl-sulphide, which is reacted with diethyl dithiophosphoric acid to give dithiophosphoric acid - S - (3,4 - dichloro - phenylmercapto - methyl) - O,O - diethyl ester. The preparation of other halomethylaryl sulphides and of the dithiophosphoric esters therefrom is referred to.ALSO:Acaricidal compositions comprise dithiophosphoric esters of the formula:- <FORM:0772213/VI/1> where R is alkyl of up to 3 carbon atoms, X and Y are hydrogen, halogen, alkyl or alkoxy of 1-4 carbon atoms, or nitro, and Z is hydrogen, halogen or lower alkyl (see Group IV(b)).  These compounds may be used together with other acaricidal, insecticidal, ovicidal, fungicidal or bactericidal substances, e.g. a a  - bis - (chlorophenyl) - b  b  b  - trichloroethane or b  b  - dichlorethane, 1, 2, 4, 5, 6, 7, 8 8 - octachloro - 3a , 4, 7, 7a  - tetrahydro -4, 7 - endomethylene indan, diethyl - p - nitrophenyl thiophosphate, diethyl - [2 - isopropyl - 4 - methyl - pyrimidyl - (6)] - thiophosphate, 5. 5-dimethyl-dihydroresorcinol dimethyl carbamate, dinitrocresol, nitrated naphthylamines, mercury or copper compounds, sulphur. In examples (1) dithiophosphoric acid - S - (3, 4 - dichlorophenyl - mercaptomethyl), O.  O diethyl ester is ground with talc to form a dusting agent; (2) the corresponding 4-nitrophenyl-mercaptomethyl body is ground with a carrier such as kaolin, bentonite, or chalk and with a wetting or adhesive agent such as sulphite waste liquor or dibutyl-naphthalene sulphonic acid to give a water dispersable powder; (3) the 4 - fluorophenylmercaptomethyl body is mixed with dichlorodiphenyltrichlorethane and carrier and wetting agent as under (2); (4) the 2, 5 - dichlorophenylmercaptomethyl ester is dissolved in diacetone alcohol and xylene or a mineral oil, together with a polyethylene oxide condensation product as emulsifier; (5) the 2. 4 - dichlorophenylmercaptomethyl body is dissolved in xylene and petroleum; (6) the 4 - chlorophenylmercaptomethyl body is ground with dichlordiphenyltrichlorethane and talcum; (7) the 3.4 - dichlorphenylmercaptomethyl body is mixed as under (4) but with the addition of dichlordiphenyl-trichlorethane.
Patent GB-1274807-A (GB)
Title: Improvements in or relating to coffee products
Inventor: JOFFE FREDERICK MARTIN
IPC: A23F5/12
Filed: 1970-05-12
Abstract: 1,274,807. Coffee. PROCTER & GAMBLE CO. 12 May, 1970, No. 16569/71. Divided out of 1,274,806. Heading A2B. A coffee product comprises a minor proportion, preferably 10-30 wt%, of non-compressed particles of high grade roast and ground coffee and a major proportion of flakes of compressed low and/or intermediate grade roast and ground coffee. The flakes are preferably those set forth and claimed in Specification 1,274,806. Preferably 3-10% of the product passes 40 mesh U.S. standard screen and not more than 35% remains on a 12 mesh U.S. standard screen.
Patent GB-635147-A (GB)
Title: Improvements relating to electric circuits comprising electric discharge devices
IPC: H03K3/55
Filed: 1947-06-24
Abstract: 635,147. Pulse generating circuits. ENGLISH ELECTRIC CO., Ltd., and FERGUSON, J. M. June 24, 1947, No. 16651. [Class 40 (vi)] In a pulse generator circuit which comprises a valve having a mercury pool cathode with means to initiate an arc therefrom and at least two anodes having independent control grids, one anode is connected in series with the primary winding of a step-up transformer to discharge a capacitor therethrough and thus to charge a second capacitor connected to the secondary winding. The second anode is connected across the secondary winding to discharge the second capacitor through a load circuit, and positive pulses are applied to the control grids in rapid succession to establish the arc to the second anode before or slightly after that to the first anode has ceased. The pulses are applied so that the cycle of charging and discharging the capacitors is repeated at a frequency of several hundreds of cycles per second. The Figure shows a valve 10 having a mercury pool cathode 14 igniter 15, an excitation arc anode 12 and two other gridcontrolled anodes 11, 13 used in a circuit for producing pulses of high peak power from a low voltage D:C. source 31. When pushbutton 22 is depressed the igniter 15 and anode 12 are energized from the D.C. supply 20 and an arc discharge takes place. Capacitor 30 charges from the D.C. supply 31 via inductor 32. A positive-going pulse applied to terminal 40 overcomes the standing bias of source 41 and renders the left-hand anode section of valve 10 conducting, thus discharging capacitor 30 through the primary winding 33 of step-up transformer 34, the valve subsequently becoming non-conductive when the voltage on the anode has fallen sufficiently low relative to the cathode. The resultant impulse across the secondary winding charges the capacitive pulse-forming network 36 which when the right-hand triode section of valve 10 is rendered conducting by a positive pulse applied to terminal 50 discharges to produce a pulsating current through the load 37 for a period of a few microseconds. In a modification, the circuit is arranged so that the discharge of capacitor 30 through the transformer primary ceases before, but not more than about 100 microseconds before the application of the firing pulse to grid 17.
Patent GB-294356-A (GB)
Title: Improvements in or relating to automatic or self-acting mechanism for operating sliding windows and the like
IPC: E05F11/38
Filed: 1927-06-24
Abstract: 294,356. Piper, J. H. June 24, 1927. Window holders.- Window sashes which are overbalanced by two pairs of articulated spring- controlled levers A, A<2>, and A<1>, A<3> are adapted to be retained in any position by means of spring- pressed pivoted eccentric clamps C, C<1>, on the sash engaging a band or tape C<2> which may be fixed or movably hand operated pulley C<16>. The. clamps may be releasable by Bowden-wire D or spring-controlled lever. The clamps may be wedges acting between stops or one wedge be tween a stop and roller, Fig. 6.