baber/WOPTO huggingface dataset:
Patent GB-439553-A (GB)
Title: Improvements in and relating to valves
IPC: F16K31/524
Filed: 1934-03-05
Abstract: 439,553. Valves. MIKLOS, J., 6, Vilmos CsÓszÓr ut, and FRISCH, K., 50, KirÓly Ucca, both in Budapest. March 5, 1934, Nos. 7002 and 7003. Void [Abridged as open to inspection under Sect. 91 of the Acts, Sept. 4, 1934]. [Class 135] A closure member normally held closed by fluid pressure is opened by a rotatable cam or the like, the end positions of an operating arm being determined by the body of the valve or projections thereon. In Fig. 1 a ball b is raised from its seat by means of an eccentric e. In Fig. 5, a conical member n is used, and the movement of the handle p is limited by the parts p<1>, p<2>, of the body P. An alternative form of cam s is shown in Fig. 7. Fig. 4 shows a ball valve b adapted to be pushed off its seat by a ball in a helical groove of gradually increasing diameter in a rotatable member e.
Patent GB-253214-A (GB)
Title: Improvements in tools for extracting cartridges from sporting and like guns
IPC: F41A15/22
Filed: 1925-03-17
Abstract: 253,214. Johnson, J. J. March 17. 1925. Cartridge - extracting tools.- Consists of a U-shaped resilient band a adapted to be forced over the rim of the cartridge and a pivoted handle loop b.
Patent GB-487765-A (GB)
Title: Improvements in or relating to rotary piston machines
IPC: F01C1/12
Filed: 1938-03-08
Abstract: 487,765. Rotary engines. SIEMENS & HALSKE AKT.-GES. March 8, 1938, No. 7260. Convention date, March 16, 1937. [Class 110 (ii)] Pistons P have three or more nodes, and are geared together by teeth on their peripheries. The sides of the pistons may be straight, or concave as shown.
Patent GB-813221-A (GB)
Title: Improvements in or relating to ethylene polymerization process
IPC: C08F110/02
Filed: 1957-03-05
Abstract: Polyethylene made by polymerizing ethylene in the presence of a catalyst comprising a mixture of (A) a compound of the general formula RR1AlX in which R is hydrogen, an alkyl, or an aryl radical, R1 is hydrogen, an alkyl, or an aryl radical and X is hydrogen, halogen, alkyl, alkyloxy, aryloxy, a secondary amino radical, a secondary acid amide radical, a mercapto radical, a thiophenyl radical, or a radical of a carboxylic or sulphonic acid; and (B) a halide of a metal of Group IVa, Va or VIa of the Mendeleeff Periodic Table, is purified by treating the polymer with an alkoxide, filtering the slurry, and washing the purified polymer with an alcohol.  The alkoxides have the general formula R-O-M, where R is an alkyl radical selected from methyl, ethyl, propyl, isopropyl, butyl or isobutyl and M is an alkali metal, e.g. sodium, potassium, or lithium.  Exemplified alkoxides are sodium and potassium isopropoxides, sodium methoxide and ethoxide, and sodium tert. butoxide.  Alcohols mentioned are methanol, ethanol, propanol and isopropanol.  The polyethylene is preferably prepared in the presence of an inert solvent or diluent such as heptane, hexane, pentane, cyclohexane, tetrahydronaphthalene, decahydronaphthalene, benzene, xylene, o-dichlorobenzene, chlorinated naphthalene, or dibutylether. Specified catalysts are a mixture of diethylaluminium chloride and titanium tetrachloride in a mol. ratio of 1.1 : 1, di-isobutyl aluminium chloride and titanium tetrachloride in a 1.1 : mol. ratio, and dipropyl aluminium chloride and titanium tetrachloride in a mol. ratio of 1.1 : 1.
Patent GB-235949-A (GB)
Title: Improved calculating apparatus for solving navigational problems involving drift, wind, and ground speed
IPC: G06G1/00
Filed: 1924-03-25
Abstract: 235,949. Gordon, H. F. A. March 25, 1924. Plane-trigonometry calculators.-Apparatus for solving vector triangles of air, ground and wind speeds, in connection with aircraft &c., comprises a plotting board G supporting a pair of reversely graduated bars DE slidable one along the other and carrying a slide H, graduated radius bars F, J, K being pivotally mounted respectively at zero on bar D, on slide H, and at zero on bar E. The bars F, J are maintained parallel to each other in any suitable way. To use the apparatus, observations of the line of drift are taken while the craft is travelling at two different speeds and the angles thus obtained, together with adjustments of the bar E and slide H according to the two air-speeds, are utilized to reproduce the diagram shown in Fig. 2. In this ab, a<1>b represent the two speeds, ac, ac' the two directions of drift and bc or b<1>c<1> the direction and speed of the wind. The whole of the bars may be pivoted at M to the plotting board G which may then be enlarged and provided with a graduated circle to enable the bars D, E to be oriented upon it in any direction.
Patent GB-1134504-A (GB)
Title: 1-hydroxy-2-naphthamide compounds and their use in obtaining photographic images
Inventor: MAGAGNOLI REMO
IPC: G03C7/34
Filed: 1966-02-21
Abstract: 1,134,504. 1 - Hydroxy - 2 - phenethyl naphthamides. FERRANIA S.p.A. 21 Feb., 1966 [13 March, 1965], No. 7599/66. Heading C2C. [Also in Division G2] The invention comprises compounds of the formula where X is hydrogen or halogen, and R is alkyl, optionally substituted aryl or a heterocyclic group. The compounds are prepared by a Friedel-Crafts condensation between N- acetylphenethylamine and an acyl chloride, followed by hydrolysis of the acetyl derivative and condensation with a phenyl 1-hydroxy- 2-naphthoate.
Patent GB-100682-A (GB)
Title: Improvements in or relating to Starting Internal Combustion Engines.
Filed: 1916-05-31
Abstract: 100,682. Bosch Magneto Co., (Assignees of Heins, O., and Wild, C. M.). June 12, 1915, [Convention date]. Drawings to Specification. Systems for continuous-current motors only.- A starting-motor is arranged to give its maximum output at more than one speed. The field excitation may be altered by substituting other coils of less ampere-turns; the field coils may be turned from series to parallel connexion, or may be simply shunted. The armature coils may be similarly altered, or the number of batteries in circuit may be increased. The excitations are such that the first maximum is obtained at the speed at which the engine normally starts; then, if starting does not take place, the adjustment of the field &c. gives an abnormal engine speed.
Patent GB-911361-A (GB)
Title: Improvements in or relating to mobile agricultural crop collecting and treating machines
Inventor: ANDERSEN PETER BONDE
IPC: A01D41/127
Filed: 1958-03-11
Abstract: 911,361. Combine-harvesters. MASSEYFERGUSON (UNITED KINGDOM) Ltd. March 6, 1959 [March 11, 1958], No. 7765/58. Class 6(3). In a crop-collecting machine of the type wherein the rate of collection is dependent on the forward speed of the machine (e.g. a combine-harvester) an interconnection is provided between a means for sensing the rate of collection of crop and a means for varying the ground-speed whereby an alteration in cropintake will result in a corresponding change in ground-speed. In Fig. 2 the sensing means 70 is associated with the slat-elevator 22 which follows the transverse auger 23 behind the cutter-bar 21. This elevator, which is floatingly pivoted about its upper pulley-shaft 30, rises and falls as the volume of crop varies and is connected by a pin and slot 72, 73 with a crank 71 on a shaft 74 connected by a hydraulic transmission 95, 96, 97 with a floating lever 103. The lever 103 has an adjustable fulcrum provided by a cam 107 and controls a valve 85 by which pressure-fluid is supplied to or vented from a ram 81. The ram 81 controls, by linkage 82, 83, 84 the movement of the two parts of an infinitely-variable belt-pulley 38 which transmits motion from the engine 15 to the ground-wheel 11. The fulcrum-cam 107 is adjustable initially by an operator, through a lever 110, to set a particular crop-intake rate; thereafter, variations in crop-intake are transmitted via the mechanisms 70, 95, 103, 81 to the pulley 38 to alter the ground-speed to restore the intake to its original value. In a modification, Fig. 7, the sensing means comprises a jockeypulley 221 bearing on the belt-drive 215 to the cutter-bar. The pulley is connected, by a spring-loaded rod 222 to a floating lever 231 the lower end of which presses on a pivoted lever 235 which operates the valve. A second floating lever 245 can also press on the lever 235 and is controlled by two cams 248, 247, the cam 247 being operable by a hand-lever 252 and the cam 248 being moved by the hydraulic ram 81a in altering the groundspeed. The arrangement is such that there is an exact correspondence-control between the position of the hand-lever and the groundspeed whereas with the arrangement in Fig. I, the ground-speed would increase indefinitely under no-load conditions unless corrected by the operator. In other modifications, Figs. 3, 4, 5 (not shown), the sensing element is connected to the threshing mechauism or to a rotary drive-shaft to another of the croptreating members.
Patent GB-1298911-A (GB)
Title: Improvements in or relating to vibratory conveyor systems
Inventor: ROWELL LORNE
IPC: F26B5/06
Filed: 1971-03-25
Abstract: 1298911 Freeze drying HILLS BROS COFFEE Inc 25 March 1971 7840/71 Heading F4G [Also in Division B8] Frozen particles of coffee extract are freezedried in an evacuated chamber 42. The particles are fed at intervals through a vapour lock (not shown) to a hopper 50 supplying a vibrating feeder 52 and thence to the top deck 54 of a vibrating conveyer comprising four vertically spaced decks 54, 56, 58, 60. The decks are driven by a motor external to the chamber 42 through a flexible shaft 236 rotating pairs of eccentrics 238, 240 which are 180 degrees out of phase and respectively associated with rocker arms 320, 233. The decks 54, 56, 58, 60 are respectively mounted on sets of pairs of flat springs 186, 188, 190, 192 opposed as shown. The result is that the horizontal direction of motion of the decks 54, 60 is the same but their vertical motions are opposed, while the horizontal direction of motion of the decks 56, 58 is the same, but opposed to that of the decks 54, 60, while their vertical motions are also opposed. Each deck, e.g. 54 is made up of a number of overlapping plates 210, so that at their joints 66 the particles turn over in raising from one plate to the next. Each plate 210 is provided with a cooling coil 212 beneath the upper plate surface while the particles are subjected to radiant energy from sources 214 to sublimate the ice content to vapour form. The vapour collects as ice on refrigerated condensers 62 periodically de-iced by surges of warm refrigerating means so that the ice falls to the bottom of the chamber 42 whence it is removed by belt conveyers 76 which pass it to a suitable vapour lock with breaker means 86. The particles pass along the decks 54, 56, 58, 60 in turn and eventually fall into the product hopper 74. Tubular frame 182 supporting the conveyer decks 54, 56, 58, 60 comprises upper and lower members 194, 196 and 198, 200 of hollow construction through which cooling liquid of similar temperature to that passing through the coils 212 is passed to minimize the effect of change in length of the decks 54, 56, 58, 60 due to temperature change.
Patent GB-902491-A (GB)
Title: Improved bearing arrangement for rotatively supporting a shaft
Inventor: BRACEY KENNETH EDWARD
IPC: F01D25/16
Filed: 1960-03-04
Abstract: 902,491. Bearings. ROLLS-ROYCE Ltd. Feb. 23, 1961 [March 4, 1960], No. 7860/60. Class 12 (1). A thrust bearing arrangement interconnecting two rotating shafts 10 and 11 comprises two adjacent ball-bearings 13 and 14 with split inner races 16, 16a, 17a and 17 clamped to shaft 10 between a shoulder 18 and ring 19. To prevent independent rotary movement between each, the outer races 15 and 16b have axial extending intercalated dogs 29 and 30, together with opposite handed helical splines 24 and 25 which engage with corresponding internal splines 26 and 27 of the sleeve 28. Thus, by mutual interaction under a thrust load the bearings carry an equal share of the loading.
Patent GB-1249161-A (GB)
Title: Improvements in or relating to torque sensitive releasing means for sprag clutches
IPC: B23Q11/04
Filed: 1969-02-13
Abstract: 1,249,161. Tapping attachments. HOUDAILLE INDUSTRIES Inc. 13 Feb., 1969 [25 March, 1968], No. 7900/69. Heading B3N. [Also in Division F2] An overload torque release clutch for a power tool, e.g. a tap driver, comprises a pair of oppositely directed sets of sprags 29, 30 between an outer driving member 12 and an inner driven member 22 connected to the tool socket 10 through a flange 21 against which the member 22 is urged axially by Bellville springs 27 to form a slip clutch 23, 24 which slips on overload, producing relative motion between the driving member 12 and lugs 38 on the flange 21 which abut the operative sprags to disengage the clutch. The sprags are re-set on reversing the drive. A garter spring 35 urges the sprags radially outwardly. As shown, the socket 10 carries a pair of rollers 17 engaging in slots 18 in a sleeve 19 to which the flange 21 is bolted. The torque at which the clutch 23, 24 slips may be adjusted by a nut 28 abutting the springs 27, indicia being formed on the barrel 9 and nut 28.
Patent GB-1128897-A (GB)
Title: Improvements in or relating to portable apparatus
Inventor: SMETANA PAVEL
IPC: A45C13/26
Filed: 1966-02-23
Abstract: 1,128,897. Portable apparatus. CHIRANA, ZAVODY ZDRAVOTNICKE TECHNIKY, ODBOROVY PODNIK. 23 Feb., 1966, No. 7918/66. Heading B8P. [Also in Division E2] A portable apparatus comprising a container, a cover 8 for the container and a handle means, a handle of which serves, in one position with regard to the container, for carrying the apparatus and fastening the cover to the container, and in another position as a stand for supporting the apparatus with the cover released, characterized in that the handle is provided on each of its end portions 4 with a fastening disc 3 eccentrically pivotably connected to the container by a pivot pin 6 screwed into said handle, each fastening disc being provided with a cam slot 9 for engaging a pin 10 fixed on the container cover and with two circular detent apertures 12, 13, the centres of which lie on the circle having the same centre as said pivot pin and with a cut-out 15 in its circumference receiving a stop 11 fixed to the container, each disc being associated with a ball 7 located in an aperture in the container wall and with a spring element 2 carried by the corresponding pivot pin inside the container and urging the head of the container cover pin into contact with the disc, the engagement of the cut-out ends and the stop defining the two positions of the handle, the ball in each such position engaging one of the detent apertures to hold the handle in position.
Patent GB-837918-A (GB)
Title: Improvements in electrical switches of the vacuum type
Inventor: PEARSON STANLEY JOHN
IPC: H01H51/28
Filed: 1957-03-11
Abstract: 837,918. Vacuum switches. BRITISH THOMSON-HOUSTON CO. Ltd. Feb. 6, 1958 [March 11, 1957], No. 7942/57. Class 38 (5). To indicate the loss of vacuum in a vacuum switch, two spark gaps are subjected to the gas pressure in the vacuum chamber of the switch, one gap being arranged to spark over at substantially the maximum pressure at which the switch will operate satisfactorily and the other being arranged to spark over at substantially atmospheric pressure. In Fig. 1 the spark gaps 2, 5 are provided between electrodes 3, 4 and 6, 7 housed in an enclosure 1a connected to the switch chamber 1, the electrodes 3, 6 being connected to a common terminal 8 and the electrodes 4, 7 to a common terminal 11 connected to the live side of the switch. In the event of a slow leak in the switch chamber, the gap 5 will spark over when the permissible maximum pressure is reached, but in the event of a sudden leak, the gap 2 will spark over when substantially atmospheric pressure is reached. In Fig. 2, the gap 2 is formed directly between the electrodes 14, 15 and the gap 5 extends round the enclosure 1a which is in the form of a loop. In each case, the current flowing through a spark gap and a resistor 10 may operate a relay which is effective to prevent operation of the vacuum switch (Figs. 3 and 4, not shown).
Patent GB-868153-A (GB)
Title: Improvements relating to ships' anchor haulage gear
IPC: B63B21/22
Filed: 1959-03-06
Abstract: 868,153. Controlling by radio-activity. CLARKE, CHAPMAN & CO. Ltd., and HUTCHINSON, M. Feb. 24, 1960 [March 6, 1959], No. 7951/59. Class 40(3) [Also in Group XXX] Relates to means for the indication and control of the length of ships' anchor chain paid out and hauled in by a windlass or capstan. According to the invention one or more chain links carry a radio-active isotope. Stud 14, Fig. 1, in link 12 has a cavity 15 carrying the isotope and closed by a plug 16. To slow down and subsequently stop the hauling-in windlass detectors D1, D2, Fig. 2, are provided adjacent anchor chain AC run between a roller bow stopper R and the windlass. Each detector comprises a pair of sensitive devices at 90 degrees about the run of the chain. Audible and visual alarms AS, VS are in parallel with relay HR which puts the windlass to slow speed when fitted link I passes detector D1, and detector D2 controls stop relay SR; manual winding-in is afforded via switch S. For remote indication of the length of anchor chain paid out, isotopes are inserted in each of a plurality of spaced links and the passage of these past a detector operates a counter, Fig. 3 (not shown).
Patent GB-747142-A (GB)
Title: Improved method and apparatus for the ultrasonic inspection of materials
IPC: G01N29/06
Filed: 1954-03-18
Abstract: 747,142. Ultrasonic wave couplings. SPERRY PRODUCTS, Inc. March 18, 1954 [March 20, 1953], No. 7979/54. Class 40 (4). [Also in Group XXXVIII] Relates to the pulse-echo method of detecting flaws in the welded junction 21, Fig. 2, of two coplanar metal plates 20 in which a common transmitting and receiving piezo-electric crystal 12 is inclined at an angle to the top surface of the plates so that the transmitted beam is incident on said surface at an angle alpha and is refracted at an angle # such that the beam impinges on the welded section 21, any reflected energy caused by a flaw in the weld being received by the crystal and applied to a cathoderay oscilloscope and/or a recorder. The crystal 12 is coupled to the plate 20 by liquid 23 having a smaller acoustic impedance than that of the plate so that the angle # is greater than the angle alpha. According to the present invention the crystal 12 is surrounded by an endless belt 41 passing round rollers 43, 44 and having a transverse slit 42 which produces a beam of sheet form perpendicular to the plane of the figure which moves from position 51a to position 52a as the slit moves across the face of the crystal causing the refracted beam in plate 20 to scan the welded section 21 from bottom to top. The crystal 12 is mounted on a backing plate 13 attached to a bracket 40 slidably mounted on a guide rail 57 within a casing 50 filled with the liquid 23. The rollers 43, 44 are mounted on shafts 63, 61 which are journalled in the casing 50 and are driven by an electric motor 48 via shaft 47 and chain and pulleys 45, 46. Shaft 61 and roller 44 are loosely threaded and shaft 63 and roller 43 are loosely splined so that the crystal is moved slowly within casing 50 parallel to the line of the weld when the weld section is being scanned. The casing 50 is also slidably attached to a guide rail 65 so that it may be moved manually parallel to the line of the weld.
Patent GB-1256465-A (GB)
Title: Conversion of acrylic olefinic hydrocarbons, cycloolefinic hydrocarbons, and mixtures thereof to olefinic hydrocarbons containing a different number of carbon atoms, high molecular weight polymers, and copolymers respectively
Inventor: HERISSON JEAN LOUIS
IPC: C07C6/04
Filed: 1970-02-19
Abstract: 1,256,465. Disproportionation of olefins; olefin/cyclo-olefin co-oligomers. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. 19 Feb., 1970 [24 Feb., 1969; 20 May, 1969], No. 8062/70. Heading C5E. [Also in Division C3] Acyclic olefins containing at least one group of the formula  are either disproportionated or co-oligomerized with cyclic olefins, in the liquid phase in the presence of a catalyst comprising (a) a tungsten oxide in free or combined form, and (b) an aluminium halide. Combined tungsten oxide may be present in tungstic acid, a tungsten heteropolyacid, a tungsten isopolyacid, or a salt of any such acid, a wide variety of acids and salts being exemplified. A small amount of water may also be present. Examples relate to the disproportionation of 2-pentene, cis-2-pentene, 2- hexene and 2-octene, and to the co-oligomerization (presumably with concurrent disproportionation) or 2-pentene and cyclopentene to give a mixture of C 9-11  diolefins and C 14-16  triolefins.
Patent GB-1248534-A (GB)
Title: Circuit for measuring transistor current gain
IPC: G01R31/28
Filed: 1969-02-14
Abstract: 1, 248, 534. Transistor testing. RCA CORPORATION. Feb. 14, 1969 [Feb. 14, 1968], No. 8108/69. Heading G1U. To measure the current gain (alpha or beta) of a transistor 60 whilst it remains connected in a circuit such as 63-66, a voltage supply 14 is connected through a resistor 28 between the output and reference electrodes 54, 58 of the transistor and the current which flows through this resistor owing to the presence of the circuit 63 -66 is then reduced to zero by connecting an auxiliary supply 50 across the resistor 28 through a variable resistor 32. Current is then applied independently of the circuit 63-66 to the control electrode 56 of the transistor and the current gain determined from the ratio of the current now flowing in resistor 28 to the applied control electrode current. Preferably current is applied to the control electrode 56 through a meter shunt 20 and is adjusted to one of a number of predetermined values by a variable resistor 22, 24. Meter 12 can then be calibrated to read the current gain directly, divided by an appropriate scale factor, when connected across resistor 20.
Patent GB-718732-A (GB)
Title: Weighing of webs of flexible fibrous material
Inventor: GILLIBRAND CLIFFORD GARNER
IPC: G01G19/00
Filed: 1952-03-31
Abstract: 718,732. Automatic feed weighers. ROBINSON & SONS, Ltd. March 25, 1953 [March 31; 1952], No. 8194/52. Class 143 In apparatus for dispensing a particular weight of flexible fibrous sheet material the material is caused to pass over the lip 3 of a weighing pan 11 in a substantially horizontal direction so as to eliminate any downward thrust on the pan, and is automatically severed by stopping the supply rollers 5 but not the feed rollers 4. The material may pass from the supply rollers 5, over a guide plate 6, through the feed rollers 4 to a slightly inclined lip 3 of same width as the pan and feed rollers 4 but where it joins the weigh pan horizontal and tangential to the lower feed roller 4. Photoelectric or other electro-mechanical means co-operating with the weighing scale needle may then automatically stop the supply rollers 5, but not the feed rollers 4, so that the material is severed between the pairs of rollers. Allowance is made for the short unweighed length of material which is then also delivered into the pan 11. A micro-switch may automatically restart the feed after a predetermined interval for manually discharging the pan. The pan is bolted in balanced relation to a triangular plate 10 bolted to the pan mounting of a weighing scale and having at its apex a tierod 7 extending to the lip 3, and terminating in a nut adjusted strip 8 for adjusting the inclination of the lip 3.