baber/WOPTO huggingface dataset:
Patent GB-839233-A (GB)
Title: Thread tension mechanism for sewing machines
IPC: D05B47/00
Filed: 1957-09-13
Abstract: 839,233. Sewing machines. SINGER MANUFACTURING CO. Sept. 13, 1957 [Sept. 14, 1956], No. 33198/58. Divided out of 839,231. Class 112.  Thread controlling, thread-tensioning devices. In a sewing machine having a thread tensioner comprising a pair of spring-biased discs 46 mounted on a stud 44, a plate 73 is mounted for sliding movement along a line in a plane normal to the axis of said stud, and a shaft 20 journalled on an axis parallel to that of said stud carries a crank pin 77 normally disposed in a notch 79 provided at one end of a slot 80 formed in plate 73 concentrically with the axis of shaft 20, the arrangement being such that initial movement of shaft 20, effected by operator-influenced means, causes sliding movement of plate 73, whereby a pin 75 carried by the latter separates the discs 46 to release thread tension, further movement of shaft 20 serving to hold plate 73 in tension-releasing position without effecting further penetration between the discs by the releasing pin. Shaft 20 also operates the presser bar lifting means, the latter containing a lost-motion connection, whereby the thread tension is released before lifting of the presser bar' commences. As shown, a pair of thread tensioners 42, 43 is provided. The discs 46 are pressed against a collar 45 on stud 44 by a spring 47 which also abuts a flange 52 formed on a sleeve 49 provided with a finger 50 disposed in a slot 51 formed longitudinally in stud 44. A nut 48, screwed on the end of the latter, engages the serrated outer face of flange 52. The screwed inner ends 54 of the studs pass through a plate 58, the stud of tensioner 42 carrying a nut 65, and the stud of tensioner 43 screwing into a boss 66 on the standard 2 of the machine. Mounted on each portion 54 is a pair of thread guides 56, 57, guide 56 having a single arm formed with thread holes 60, and guide 57 having a pair of arms formed with respective thread holes 63, 64. Plate 73 is formed with slots 74 through which reduced portions 53 of the studs pass. A further stud 67 passes through another slot 74, a spacer 72 and plate 58, and screws into a boss 71 on the standard 2. Presser bars. Shaft 20, provided with a crank connected to a treadle or the like, is also connected by a linkage 25, 27, 30, 38, 39 ton an arm 16 fixed to the presser bar 5. The free end of arm 16 lies within a guide slot in a fixed plate 17. A spring 28 biases shaft 20 to the position corresponding to the lowered position of the presser bar. A pin 40 on arm 16 lies within a slot 41 in link 39 to provide a lostmotion connection enabling the presser foot 8 to follow inequalities in the work without affecting said linkage. The presser bar is biased downwardly by a compression spring 10 which abuts the lower end of a longitudinal bore 9 in the presser bar and a rod 11 which screws through the machine head 4 and enters the upper end of bore 9.
Patent GB-876401-A (GB)
Title: Moving bed nuclear reactor for process irradiation
IPC: G21C19/20
Filed: 1958-10-17
Abstract: Cetane is subjected to ionizing radiation by being passed down through a bed of uranium-containing particles in a nuclear reactor, where it is subjected to a temperature of 300 DEG F., a pressure of 150 p.s.i., and an above-100 eV neutron flux of 1014 per cm2. per sec.  About 1% of the cetane is converted in one pass through the reactor, forming 20% of a 700 DEG -900 DEG F. fraction, 72% of 900 DEG F. and higher fractions, and 87% naphtha and lighter fractions; the rest is re-cycled.ALSO:<PICT:0876401/III/1> A liquid material is subjected to nuclear radiation to effect reactions therein while passing downwards through a bed of fissile particles 2 in a nuclear reactor; the liquid acts simultaneously to moderate, cool, and control (by control of the liquid level A) the reactor.  The liquid enters the reactor at 21 and leaves at 25 under the control of a temperature or flux detector 26, passing through a heat exchanger 24. A purge liquid enters at 18 to separate the liquid from the fuel. The liquid may be an alcohol, ether, ketone, carbohydrate, a metallo-organic or heterocyclic compound or a solution or suspension of these in H2O, NH3 or other solvent, but is preferably a hydrocarbon with 10-25 carbon atoms per molecule; whole crudes, naphthas, shale oils, gas oils, asphalts and the like and distillate petroleum fractions are mentioned, the product being a distillate lubricant fraction of high viscosity index.  Other materials may be added to the reaction zone for desired results: H2, steam for cracking, hydroforming, hydrofining, olefines, catalysts (e.g. BF3), polymerisable monomers, or CCl4, H2O, CH3.CO.C2H5 and the like to form two-phase systems.  The product may be stored while radioactivity decays, and treated as suitable, e.g. by distillation. An example refers to the treatment of cetane.
Patent GB-1171199-A (GB)
Title: Improvements in or relating to Heaters for Travelling Yarns
Inventor: COCKROFT CHRISTOPHER HUGH JOHN
IPC: D02J13/00
Filed: 1967-07-19
Abstract: 1,171,199. Filament heating apparatus. IMPERIAL CHEMICAL INDUSTRIES Ltd. 8 July, 1968 [19 July, 1967], No. 33229/67. Heading B5B. [Also in Division D1] Heating apparatus, as may be used for high-speed yarn treatment such as in a combined drawing and false-twist crimping process, comprises a longitudinally and upwardly extending heater member 1 having two slightly convex, grooved, heating surfaces as may be formed by a twofaced plate or two plates mounted back - to - back with a single electric heating element mounted internally or therebetween, and a grooved pulley 16 at the upper end of the heater enabling an upward run of yarn(s) along the length of one surface to be reversed and directed to a downward run along the second surface. Threading-up is effected automatically by first lacing the yarns Y 1 , Y 2 , around fixed guides 29, 29<SP>1</SP> (which normally direct the yarns to one surface for the upward run) thence around hooked guides 19, 21, outwardly therefrom to outer hooked guides 19<SP>1</SP>, 21<SP>1</SP>, and finally around fixed guides 31, 31<SP>1</SP> (which normally direct the yarns from contact with the heater plate on completion of the downward run). Mechanism (not shown) is then operated to rotate an endless chain 13 and a cantilever arm 17 carried thereby, in orbit around the heater 1 and pulley 16. All the hooked guides move with the arm 17 so that the yarn bights formed by the initial lacing are slowly extended, one side leading across the side of the heater and the other leading parallel to the surface which is to be contacted during the upward run of the yarns. When the arm 17 has completed its upward movement and moves over the pulley 16, the yarns fall through the open, then downwardly-facing, sides of the hooked guides and into the appropriate slots of the pulley so that, when the arm stops at its lowermost position, threading-up is completed. A guide bar 25 keeps the yarns separated during lacing-up and whilst the arm is moving to the zenith of its orbital movement and clear of contact with a heater guard 7 during threading-up.
Patent GB-1376714-A (GB)
Title: Check valves
IPC: F16K31/524
Filed: 1973-07-12
Abstract: 1376714 Valves HERSEY PRODUCTS Inc 12 July 1973 [13 July 1972] 33244/73 Heading F2V In a check valve a hinged closure assembly 18 is loaded by a compression spring 60 which acts through a pivotal arm 46, having stainless steel roller 56 mounted on the end remote from the spring, the roller applying force through a further plastics, roller 40 mounted on a pair of arms 36 which extend in a downstream direction from the lining member 30 on which the closure member is mounted. By this means the loading torque on the closure member is controlled as the valve opens so as to give a linear relationship between pressure drop and flow rate The closure member includes a rubber washer 20 which contacts a seat 26 and a plastics bushing 28.
Patent GB-174495-A (GB)
Title: Improvements in foundry moulding boxes
IPC: B22C21/02
Filed: 1920-11-25
Abstract: 174,495. Leigh, A. P. Nov. 25, 1920. Flasks.-Foundry moulding-boxes are made from sheet or plate metal with vertical sides and inwardly inclined flanges a<2>, Fig. 4, at the top or bottom or both. The box may be made from a single strip A, Fig. 1, notched at a, the walls may be strengthened by bulbs, indentations, beadings, or angle irons, the flanges may have auxiliary internally projecting flanges, and two opposite sides of the box may be connected by bars. The box may be in two parts hinged at a<1>, Fig. 11, and connected at another corner by a snap fastener F.
Patent GB-469761-A (GB)
Title: Improvements in or relating to method of and means for electric signalling
IPC: H03K5/1536
Filed: 1935-11-30
Abstract: 469,761. Transformers. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 30, 1935, No. 33276. Convention date. Dec. 7, 1934. [Class 38 (ii)] [Also in Group XL] In a method of producing phasedisplaced impulses for signalling, the primaries AP1 and BP2 of two transformers are supplied from a common A.C. source through capacity C and inductance L respectively so that the currents therein are 90‹ out of phase. Each transformer has seven secondary windings AS1 and BS2 respectively the outputs from which are combined as shown to produce eight phases spaced 22¢‹ apart by a suitable choice of the turns ratios.
Patent GB-191924-A (GB)
Title: Improvements in or relating to the tubes of axminster and like carpet looms, and to the method of threading the same
IPC: D03D39/06
Filed: 1921-12-12
Abstract: 191,924. Perry, E. J. Dec. 12, 1921. Pile-fabric looms; creel-frame arrangements; tuft-yarn tubes, threading.-The tubes of Axminster and like carpet looms are provided with longitudinal slits a<4>, so that they may be threaded by simply drawing the threads forwardly over the curved rear face of the stick d and over the inner ends or eyes of the tubes. The tubes may be formed by folding metal blanks, and the slits may be of undulatory form, the upper edges being laterally inclined at a<5> and the lower edges rounded at a' to form wide mantles. The slits may be downturned, as shown, at their outer ends, or may be upturned. Several tubes may be threaded at one operation, by holding the threads spaced apart and secured within a known device comprising a U-shaped sheath and a comb joined thereto in knife-blade form.
Patent GB-1010329-A (GB)
Title: Lens
IPC: G02B3/08
Filed: 1962-08-30
Abstract: 1, 010, 329. Lens systems. ELASTIC STOP NUT CORPORATION OF AMERICA. Aug. 30, 1962 [Sept. 29, 1961], No. 33328/62. Heading G2J. A lens comprises a smooth outer surface 12 and on to inner far swivel optical surfaces 20 which are identical and seem to divert incident light into a desired zone which producing peak intensity at an area of said zone. Each surface 20 has in the horizontal plane a curved section, the radius of which varies with the distance of the plane from the lens axis. In the vertical plane, the surface is derived into three or more zones of different radius, as shown at 30, 32 and 34 in Fig. 5. This lens is sealed at its edge to a rear lens of Fresnel type and is provided with an annular reflex reflector 22 formed of triple mirrors.
Patent GB-1183097-A (GB)
Title: Caulking Gun
Inventor: DOUGLAS JACK ERNEST
IPC: G01F11/02
Filed: 1967-07-20
Abstract: 1,183,097. Ratchet mechanism. ARTHUR SHAW & CO. Ltd. 21 Oct., 1968 [20 July, 1967], No. 33358/67. Heading F2Q. [Also in Division F1] In a caulking gun having a cradle 1, Fig. 2, for supporting a cartridge, and a piston carried by a rod 7 formed with ratchet teeth 8 engaged by a driving pawl 13 mounted on a trigger 10 and a holding pawl 16 mounted on a handle 4 secured to the cradle, means are provided on the handle, for operation by the thumb of the hand gripping the handle, to disengage the ratchet from the pawls, to release the pressure on the piston and permit its withdrawal from the cartridge by knob 9. In Fig. 2, the disengaging means comprise a bush 5 rotatably mounted on handle 4 and slidably, but non- rotatably, receiving piston rod 7. Laterally projecting levers 19, Figs. 1 and 3 (not shown), on bush 5 are engageable by a thumb to rotate the bush and the rod to disengage teeth 8 from the pawls. In Fig. 4, a shoe 20 engages the tops of the pawls and is movable downwardly by levers 24, 22, Fig. 5 (not shown), to disengage the pawls from the ratchet teeth. In Figs. 6 to 8 (not shown), a part-cylindrical shoe (20a) embraces rod 7 and has lower edges engaging the tops of the pawls. A rod extends laterally from either side of the shoe through vertical slots in handle 4, depression of either rod acting to rotate the shoe about the rod to depress the pawls. In Fig. 9 (not shown), a spring-loaded shoe (27) engages the tops of the pawls and has an upper inclined face located beneath an inclined web extending across the handle. A lateral rod extends from either side of the shoe through an inclined slot in either side of the handle, and is moved along its slot to move the shoe against its spring to depress the pawls. In Fig. 10 (not shown), a spring- loaded shoe (32) engages the tops of the pawls and has a pair of rods extending from either side through inclined pairs of slots in the handle, one rod on either side being engaged by a thumb-operable lever (37).
Patent GB-1567037-A (GB)
Title: Safety system for a vehicle
IPC: B60L15/20
Filed: 1976-08-11
Abstract: A velocity at the time when the accelerator of a vehicle is released is stored under a certain condition in advance, and the stored vehicle velocity and an actual vehicle velocity are compared. When the actual vehicle velocity becomes greater than the stored vehicle velocity by a predetermined value, the downward inclination of a running road surface is regarded as exceeding a predetermined value, and safety means such as a brake is driven. As compared with a case of employing an inclination angle sensor such as a mercury switch, the device operates accurately without being influenced by a change in the vibration or acceleration of the vehicle.
Patent GB-1002107-A (GB)
Title: Improvements in the manufacture of cast irons
Inventor: DAWSON JOHN VICTOR
IPC: C22C38/02
Filed: 1962-08-31
Abstract: A method of making cast iron comprises using a silicon-containing inoculant, e.g. ferrosilicon wherein strontium is also added to the cast iron at the inoculant stage.  The method may be applied to both flake and nodular graphite irons.  The strontium may be added to the iron melt simultaneously with the inoculant, in the form of strontium metal or strontium silicide, or it may be alloyed to the inoculant prior to inoculation.  If alloyed to ferro-silicon the strontium may be in a proportion of 1-4% by weight, the ferro-silicon used being of low aluminium and calcium content, or preferably substantially free from calcium.  If added direct to the melt in the presence of a silicon inoculant, strontium may be added in quantities up to 40% of the weight of the inoculant, or strontium silicide may be added in quantities up to 67% of the weight of the inoculant. Strontium or strontium silicide may also be added to the melt independent of any regular inoculant.
Patent GB-463493-A (GB)
Title: Improvements in resistance-coupled thermionic amplifiers
IPC: H03F3/02
Filed: 1935-12-03
Abstract: 463,493. Valve amplifying circuits. MASSOLLE GES., J., and MASSOLLE, J. Dec. 3, 1935, No. 33477. Convention date, Dec. 3, 1934. [Class 40 (v)] In order that the phase difference between the input and output voltages of a resistancecoupled or direct-coupled amplifier shall be neither zero nor 180‹, a phase-changing coupling, such as the transformer 5, is included at at least one point in the circuit. In practice, a phase difference of approximately 90‹ or 270‹ is aimed at. The object is to prevent positive or negative feed back affecting the operation of the amplifier.
Patent GB-1125309-A (GB)
Title: Improvements in or relating to chairs
IPC: A47B95/04
Filed: 1966-07-26
Abstract: 1,125,309. Seats. L. BERNOUIN. 26 July, 1966 [28 July, 1965], No. 33560/65. Heading A4J. In a chair intended to be assembled with alternative styles of front leg, the front legs are detachably secured by dowels or screws to the chair arm rest and seat frame. The front leg may be part of a U-shaped frame including a stretcher and false rear leg.
Patent GB-282655-A (GB)
Title: Shock absorbing spring suspension for vehicles
IPC: B60G11/04
Filed: 1927-12-12
Abstract: 282,655. Dupont, G. Michot-. Dec. 22, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Springs, arrangement of; equalizing load on springs and wheels.-A spring suspension for motor and other vehicles comprises a laminated spring 4 extending the full length of the vehicle and pivoted thereto at its centre 7, the axles 5, 6 being connected to the spring at points equidistant from its ends which are connected to the vehicle frame 1 by shackles 8 and rigid or resilient brackets 9.
Patent GB-175447-A (GB)
Title: Improvements in pneumatic tyres
IPC: B60C5/02
Filed: 1920-11-29
Abstract: 175,447. Staunton, P. M. Nov. 29, 1920. Jackets and covers. -The outer cover is formed " pear-shaped " in transverse section with a projecting neck A, A at the tread. The fabric foundation B may be specially reinforced at the shoulders C. Specifications 16805/90 and 27623/96 are referred to.
Patent GB-634612-A (GB)
Title: Improvements in sheet-feeding devices
IPC: B65H3/48
Filed: 1947-12-19
Abstract: 634,612. Feeding sheets. AKTIEBOLAGET DUX. Dec. 19, 1947, No. 33679. Convention date, April 26, 1940. [Class 100 (i)] In a sheet-feeding device in which sheets are separated from the top of a pile by a number of suction separators 2 arranged to engage an edge of a pile which is transverse to the direction of feed, air-blast nozzles 10 are arranged to move with the nozzles 2 and are maintained a constant distance from the nozzles 2 as these are raised and lowered by linkage 4, 6 and a cam on shaft 7. The supply of blast for the nozzles is controlled by a valve 17 also actuated by a cam on shaft 7, and is so arranged that there is a pause in the delivery of the blast after the nozzles 2 start to rise from the pile to permit sheets below the top sheet to drop back on to the pile if two or more sheets are lifted. The blast is turned on again as the nozzles 2 move towards the feed-rollers 8, 9. In a modification the air-pipe 1 and the blast-pipe 12, which is connected by separate pipes 11 to the nozzles 10, are mounted in a common foot, shown in Fig. 5. The nozzles 2 are mounted on a member 32 connected to a guide-rod 33 and by a pipe 31 which can slide in a bore 29 in which is a control valve 37 which can vary the air pressure in the nozzles 2. The tube 31 is connected to the nozzle member 10 which extends right across the pile so that only one rubber connection is required between the blast-pipe 12 and its supply-pipe. A valve 40 can be rotated by means of a plug 41 with a chisel groove 41 to control the pressure of the blast. The nozzles can yield relative to their mounting, and a helical spring 34 returns the parts to normal position.
Patent GB-1091910-A (GB)
Title: New dibenzocycloheptenylamines
Inventor: STELT CORNELIUS VAN DER
IPC: A61K31/135
Filed: 1964-08-18
Abstract: Novel compounds of the Formula I, wherein each of R1 and R2, the same or different, represents a hydrogen or halogen atom or a C1- 4 alkyl group, R3 and R4, the same or different, represent C1- 4 alkyl groups, R5 represents a hydrogen atom or R4 and R5 together represent an ethylene radical, and n represents 1,2 or 3, and their acid addition salts, are prepared by reacting a compound of the Formula III, where X represents a halogen atom, with a compound of the Formula IV, and, if desired, converting the product into an acid addition salt thereof. <FORM:1091910/C2/1> <FORM:1091910/C2/2> <FORM:1091910/C2/3> <FORM:1091910/C2/4> <FORM:1091910/C2/5> <FORM:1091910/C2/6> <FORM:1091910/C2/7> The compounds of the Formula I may also be prepared by reacting a compound of the Formula V with a compound of the Formula VI (wherein R6 represents an alkylene group of the same number of carbon atoms as the group R4, locking one of the hydrogen atoms at the terminal carbon atom, Y1 represents a hydrogen or halogen atom or an OH group and Y2 represents a halogen atom or an OH group); where R3 and R4 represent C1- 4 alkyl groups and R5 represents a hydrogen atom; by reducing a compound of the Formula VII in the presence of a diamine of the Formula IV; by reacting a compound of the Formula V with an alkylene dihalide of the formula Hal-(CH2)nHal, where Hal represents a halogen atom and reacting the resultant haloalkylamine of the Formula VIII with an amine of the formula HNR3R4; and, where R3 and R4 represent C1- 4 alkyl groups, by reacting a compound of the Formula V with a haloacid halide of the formula Hal-CO-(CH2)n- 1-Hal, reactin the product with an amine of the formula HNR3R4 and reducing the resultant amide; and in a modification of the last process, by reacting a compound of the Formula V with a compound of the formula Hal-A-NR3R4 (where A represents a group of the formula -CO-(CH2)n- 1-or -(CH2)n- 1-CO- and reducing the carbonyl group of the resultant amide. Dibenzo[a,d]cyclohepten-5-yl halides of the Formula III may be prepared by reacting the corresponding 5-ol with a suitable halogenating agent.  Dibenzo[a,d]cyclohepten - 5 - ylamines of the Formula V may be prepared from the corresponding 10,11-dihydro-compounds in which the amino group is protected by an acyl group, by bromination, removal of HBr and deacylation. Therapeutic compositions with vesicatory, cytostatic and anti-mitotic activities, which may be in forms suitable for oral or parenteral application, comprise compounds of the Formula I or their non-toxic acid addition salts together with an acceptable carrier.
Patent GB-302498-A (GB)
Title: Improvements in and relating to salinometers and the like
IPC: G01N27/06
Filed: 1927-12-14
Abstract: 302,498. Evershed & Vignoles, Ltd., and Perry, C. E. Dec. 14, 1927. Resistances, measuring. - In salinometers of the kind wherein the resistance of a column of liquid is measured three electrodes are provided and the resistance between the central one and the outer two is measured bv an ohmeter. Compensation for changes in temperature may be effected either by moving the central electrode or by adjusting a resistance in circuit with the control coil of the ohmeter. Figure 4 illustrates the latter method. The electrodes c, d are separated by insulating sections a, b of the test chamber. Before entering the latter the liquid passes through a series of concentric pipes c', d<1>, e<1> composed of metals having different coefficients of expansion and connected to a rack and pinion h<1> which adjusts the amount of resistance. y in series with the control coil of the ohmeter g according to the temperature of the liquid. In a modification the adjustment is manually effected according to the reading of a thermometer inserted in the liquid.