baber/WOPTO huggingface dataset:
Patent GB-480720-A (GB)
Title: Improvements in methods of lapping toothed gears
IPC: B23F19/04
Filed: 1936-08-29
Abstract: 480,720. Lapping gear-wheels. TENNANT. W. J. (Carborundum Co.) Aug. 29, 1936, No. 23717. [Class 60] A toothed gear-wheel is lapped, by rotation in engagement with one or more toothed members each mounted on an axis inclined to that of a normally mating gear and in a plane containing the axis of the lapped gear, the lapping teeth being so formed as to sweep over the whole working faces of the gear teeth and to provide rolling contact on a line which is oblique to the normal line of rolling contact with a mated gear. Fig. 1 shows a toothed gear 40 mounted on a mandrel 37 between centres 28, 35 on a sliding carriage 22 and meshing with lapping members 49, 49a which may be adjusted to the same or different angles relatively to the toothed gear on swivels 41, 41a adjustable about vertical axes on a base 20. The member 49 is driven by a belt 53 for alternate periods in opposite directions, the pressure between the gear and lapping members being regulated by means of an adjustable brake band 55 on the shaft of the member 49a. During these periods the carriage 22 is reciprocated on the base 20 by a lever 24 so that the lines 60, 63<1>, Fig. 14, of rolling contact, which are inclined to the normal lines 58 of contact with a mated gear, move along the surfaces of the teeth. The lapping members are preferably constructed of bonded abrasive material but, alternatively, metal members supplied with powdered abrasive in an oil vehicle may be used. The gears to be lapped may be of the spur, helical, herring bone or multiple gear type, either internally or externally toothed.
Patent GB-1163690-A (GB)
Title: A Mechanical Shovel.
Inventor: STEHPHENSON CLIFFORD
IPC: E02F7/02
Filed: 1968-05-18
Abstract: 1,163,690. Shovelling machines. C. STEPHENSON. 18 May, 1968, No. 23763/68. Heading E1F.  The jib-mounted bucket of a shovelling machine comprises a support section 14 pivotally mounted on the jib 16 and a scoop section 12 pivoted at 28 on the support section 14. The inter-relationship of the two sections is such that during an upward scooping stroke of the bucket through a stockpile the section 14 farms a continuation of the section 12. Thus on an upstroke material from the pile is contained by the sections 12 and 14 and then discharged at the top of the up stroke through the section 14 onto a conveyer 20 of the machine..During the downward return movement of the bucket the scoop section 12 pivots relative to the support section 14 as the support section 14 is pivoted relative to the jib so that the 'bucket will clear the stockpile as the bucket is lowered into a position 'ready for another scooping stroke through the stockpile.
Patent GB-668159-A (GB)
Title: A process for producing bromine-containing organic compounds and the bromine-containing organic compounds so produced
IPC: C07C17/08
Filed: 1950-09-28
Abstract: "Abnormal" addition of hydrogen bromide to organic compounds containing one or more olefinic double bonds is effected under the influence of a silent electric discharge for a period of time not exceeding 15 minutes.  The discharge may be effected by an alternating current of 50-500 cycles/second and under 10,000-20,000 volts.  An excess of hydrogen bromide is preferably present and inert diluents, e.g. nitrogen, methane and other hydrocarbons may also be added.  The process may be effected under elevated temperature and may be applied to the treatment of ethene, propene, butenes, pentenes, hexenes, octenes, decenes, dodecenes, butadiene, isoprene, pentadiene, vinyl chloride, allyl chloride, mixtures thereof and mixtures of alkenes and alkanes.
Patent GB-1060136-A (GB)
Title: Multi-speed forward and reverse change-speed power transmission
IPC: F16H3/091
Filed: 1964-06-09
Abstract: 1,060,136. Change-speed gearing; friction clutches. ROCKWELL-STANDARD CORPORATION. June 9, 1964 [July 15, 1963], No. 23820/64. Headings F2C and F2D. A constant - mesh change - speed gear for a vehicle, e.g. a forklift truck, giving several speeds in both forward and reverse, comprises parallel countershafts 66, 194 permanently coupled together for opposite rotation by meshed gears 136, 198, an input shaft (36) (Fig. 4, not shown) driving the shaft 66 through gears 40, 64, and gears 112, 114 on the shaft 66 and 200, 202 on the shaft 194 which may be clutched selectively to their respective shafts to drive an output shaft 380 on which are fixed a gear 412 meshing with the gears 112, 200 and a gear 414 meshing with the gears 114, 202. The drive from the shaft 66 to the output shaft 380 may have the following paths: for forward drive, via a double clutch 102 and gears 114, 414 (low speed) or gears 112, 412 (high speed); for reverse drive, via the gears 136, 198, a double clutch 192, and gears 202, 414 (low speed), or 200, 412 (high speed). A torque converter 26 drives the shaft (36), while the output shaft 380 has a bevel gear 32 adapted to drive an axle differential of the vehicle.  The identical fluid pressure-operated double friction clutches 102, 192 are of the type described in U.S.A. Specification 3,040,408. In the double clutch 102 (Fig. 4, not shown) an axially shiftable collar (122), integral with the gear (136) and with an annular piston (156), is splined to clutch drums (138, 140) fixedly keyed on the shaft (66). Perforated belleville springs (170, 172) urge the piston (156) towards a neutral position between the drums (138, 140). Pressure plates (128, 130) are held in the ends of the collar (122) by snap rings. The gears (112, 114) are splined to respective backing plates (120) to which inner friction discs (118) are also splined, the outer discs (118) being splined to the collar (122). Fluid pressure in a chamber (166) on one side of the piston (156) moves the collar (122) causing the gear (112) to be clutched to the shaft (66) while fluid pressure in a chamber (168) clutches the gear (114) to the shaft. Oil supplied through passages (276, 277) cools and lubricates the friction discs. In the fluid pressure control system a gear pump 222 driven from the torque converter 26 pumps oil from a sump 206 to a selector valve unit 204 in which an inching control 230 regulates fluid pressure and flow rate supplied to a clutch selector 232, and to the torque converter 26. The change-speed clutch selector comprises a five-position piston-valve which allows fluid to only one port at a time. For neutral, all the clutch pressure chambers are vented to the sump 206 through drains 288, 290. Pressure fluid supplied to lines 260, 262, 256, 258 respectively actuates the clutches to engage reverse low, reverse high, forward high, and forward low. Oil from the torque converter 26 is cooled in a heat exchanger 268 and is then used to cool and lubricate the clutch friction discs before returning to the sump 206.
Patent GB-861428-A (GB)
Title: Improvements in or relating to indole derivatives
IPC: C07D209/16
Filed: 1959-07-13
Abstract: The invention comprises indole derivatives of the formula <FORM:0861428/IV (b)/1> and pharmaceutically acceptable non-toxic acid addition salts thereof wherein Alk is a straight or branched chain alkylene radical of 2-4 carbon atoms, e.g. 1 : 2-ethylene, 1 : 2-propylene, trimethylene or tetramethylene, Alk1 has the same meaning or represents a hydroxyalkylene radical, X is hydrogen or hydroxyl and Y is hydroxyl or methoxyl and their preparation by hydrogenating a hydroxy compound of the formula <FORM:0861428/IV (b)/2> wherein Alk11 is a straight or branched alkylene or hydroxyalkylene radical of 1-3 carbon atoms and R is hydrogen or methyl.  Suitably the above process is carried out by condensing p an indole compound having a group NH2Alk-in the 3-position with the appropriate phenyl compound bearing a RCOAlk11- group or conversely reacting an RCOAlk11- indole with an aminoalkyl-benzene and hydrogenating the product either simultaneously or subsequently. 3 - [2 - (2 - Hydroxy - 2 - m : p - dihydroxyphenyl - ethylamino) propyl] - indole may be prepared by condensing a 3-b -aminopropylindole or 3-b -halopropyl-indole with the corresponding a -hydroxy-b -halo- or a -hydroxy-b -amino - ethyl - 3 : 4 - dihydroxybenzene.  Compounds with free phenolic OH groups may also be made by cleavage of corresponding alkyl or aralkyl ethers with pyridine hydrochloride. The products are used pharmaceutically, suitably in the form of acid addition salts such as the hydrohalides, nitrates, phosphates, sulphates, sulphamates, malates, maleates, tartrates, citrates, gluconates, lactates, acetates, succinates, ascorbates, benzoates and cinnamates.  Esters such as the halides, methyl or ethyl sulphates and aryl sulphonates may also be prepared.  In examples: (1) 1-(3-indolyl)-3-butanone and tyramine are condensed with catalytic hydrogenation to 3-[3-(2 - p - hydroxyphenylethylamino) butyl]-indole; (2) tryptamine is condensed with 3 : 4-dimethoxyphenyl-2-propanone and hydrogenated to 3-[2-(2-m : p-dimethoxyphenyl-1-methylethylamino) ethyl]-indole which is heated with pyridine hydrochloride to give the m : p-dihydroxy compound; (3) 3-(2-bromopropyl)-indole, obtained by treating indole with methyl magnesium bromide and propylene oxide and brominating the resulting a -methyl-3-indole-ethanol, is condensed with 3 : 4-dimethoxyphenylethylamine to give 3 - [2 - (2 - m : p - dimethoxyphenyl - ethylamino) - propyl] - indole which is converted to the m : p-dihydroxy compound; (4) 1-(3-indolyl)-2-propanone and a : 3 : 4 - trihydroxyphenylethylamine are reacted and the resulting 3-[2-(1 : 2-dihydroxy-2 - m : p - dihydroxyphenylethylamino - propyl]-indole is reduced to 3-[2-(2-hydroxy-2-m : p-dihydroxyphenylethylamino) propyl] - indole; and (5) 4-methoxy-3-hydroxyphenyl-2-propanone and tryptamine are condensed with reduction to 3-[2-(2-m-hydroxy-p-methoxyphenyl-1-methylethylamino) ethyl]-indole.
Patent GB-257756-A (GB)
Title: Improvements in or relating to machines for applying caps or closures to bottles, jars or the like
IPC: B67B3/14
Filed: 1925-09-28
Abstract: 257,756. Smith, Ltd., J., and Smith, J. Sept. 28, 1925. Addition to 239,313. Capsules and the like, applying. - The parent Specification relates to machines for applying caps &c. to bottles, jars, &c. of the type in which the cap &c. is clamped against the neck of the bottle, jar, &c. by an endless ring which is displaced inwardly, and comprises a machine of this type having a base on which the bottle &c. stands, a bracket having an opening into which the neck of the bottle &c. can project, and a number of slides which are radially movable within the bracket to distort the ring, the bracket and base being movable relative to each other. According to the invention, the cap &c. is temporarily retained in position by a securing ring 31 which is passed over the mouth of the vessel prior to fixing. In a modification, Fig. 6, the securing ring 31 is replaced by a spring-pressed plunger 40 which is slidably mounted within the clamping-ring reservoir 25. An adjustable stop 51 is fitted to the machine so that the relative movements of the bracket and base can be limited to suit the various sizes of bottle &c. to be capped. The clamping-rings 22 may be of hollow material telescopically arranged or of endless form having radial projections when contracted by the slides.
Patent GB-679703-A (GB)
Title: Improvements relating to control apparatus for slip ring induction motors
IPC: H02P25/24
Filed: 1950-10-03
Abstract: 679,703. Control of A.C. motors. MACDERMID, P. Oct. 3, 1950. No. 24158/50 Addition to 672,773. Class 38 (iii). Relates to hoisting and lowering apparatus, as described in the parent Specification, comprising a slip-ring induction motor 5 and an electric drag device 9 having a short-circuited rotor and a magnetised stator which is energized through a rectifier 11. Successively increasing speeds of lowering the load W are obtained by first energizing the drag device and allowing the load to descend against its effect, then energizing the motor so that it assists the descent of the load, reducing the torque of the drag device by connecting resistor R3 in series with its stator winding, reducing the rotor resistance RM of the motor, and, finally, de-energizing the drag device and shortcircuiting the motor rotor resistance. Hoisting is effected by first opposing the torque of the motor by the full torque of the drag device. The motor speed is then increased in steps by reducing the rotor resistance, decreasing the excitation of the drag device, and further reducing the rotor resistance and de-energizing the drag device. Finally, the rotor of the motor is short-circuited. Failure of the current passing through the field system of the device 9 de-energizes a relay-coil SR to open contactor C and apply electromagnetic brake BR. When the controller is returned to the "off" position it passes through positions in which the drag device is effective, the load being automatically retarded.
Patent GB-288481-A (GB)
Title: An improved lighting equipment
IPC: F21V17/00
Filed: 1927-09-15
Abstract: 288,481. Mills, C. K., (Frink Co., Inc.). Sept. 15, 1927. Shop windows and the like, lamps for lighting the interiors of; lanterns, glazing.-A series of cup-shaped reflectors 7 are arranged in a troughshaped housing, each pair of reflectors having' openings 24 in adjacent walls to take electric lamp sockets 22 arranged in the space between each pair of reflectors. The trough-shaped housing is formed of sheet. metal bent to form panels 1 - - 6 the panels 1 - - 6 having seats 8 upon which are supported the flanges 9 of the reflectors 7. End plates 13 fixed by tongues to the trough carry bolts 17 by which the lamp is pivotally mounted on brackets 18 adapted to be secured to the ceiling or wall, A plate 21 is arranged parallel to the aperture of the trough to form a passage for the lead wires 46 and to support the double-ended lamp sockets 22. The adjacent flanges 9 of each pair of reflectors are engaged by hinged transverse supports 29 feleasably secured by tum-buckles 39 while the opposite flanges are supported respectively by the end 13 of the trough and a fixed transverse support 23, lugs 27, 41 preventing movement of the reflectors. The fixed and hinged supports 28, 29 are provided with ventilating holes 41a, the reflectors have peripheral holes 42 and central holes 43 above the electric lamps 25 in register with holes 44 in the plate 21, and the housing has openings 45 so that a flow of air around and within the reflectors is obtained. The transverse supports 28, 29 are provided with turn-buckles 36, 36<b> to releasably support at one end glass screens each of which is supported at its other end in a groove 10 along the edge of the panel 6 of the trough. The end walls 13 of the trough are provided with a number of depressed weakened parts 24a any of which can be knocked out to take the lead wires. The supporting bracket arms 18 are curved and may be reversed to increase the extent of adjustment of the lamp.
Patent GB-597515-A (GB)
Title: Photogrammetrical tracing table
IPC: G01C11/00
Filed: 1944-12-07
Abstract: 597,515. Photogrammetry. DAMECKI, E. Dec. 7, 1944, No. 24516. [Class 97 (ii)] A tracing table for plotting contours from the relief image obtained by the projection of stereoscopic pairs of overlapping photographs of a terrain comprises a rotatable disc 1 having a central mark 2 vertically above the pencil 11 and one or more additional marks 3 to facilitate the locating of the next point on the contour being traced. The two projectors may project blue and red light respectively, the image being viewed through bicolour glasses. As shown the disc 1 is carried by a bracket which is vertically adjustable on pillars mounted on the base of the instrument. In order to assist in the identification of points in the relief image which can be brought into coincidence with the marks 2 or 3, the disc 1 is caused to oscillate vertically about its mean height either manually or by an electric or pneumatic motor. The disc 1 is carried by a parallelogram linkage and is oscillated by an eccentric 6 driven by a motor 5. The amplitude and frequency of the oscillation may be adjusted at will. Alternatively the oscillation may be affected from the hand wheel 9, adjustable stops being provided on the vertical guides to limit the movement of the bracket.
Patent GB-1141661-A (GB)
Title: Improvements in or relating to rack-mounting arrangements
Inventor: NYE CHARLES LEONARD
IPC: H05K7/18
Filed: 1965-06-10
Abstract: 1,141,661. Rack mounted electrical equipment. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. 7 June, 1966 [10 June, 1965], No. 24517/65. Heading H1R. In an electrical rack mounting arrangement of the type comprising a plurality of racks connected to form a suite the racks are mounted in T-shaped longitudinal slots of extruded uprights secured to a die-cast base separating the racks. Base 10, Fig. 2 (not shown) has four extruded uprights 15, 16, 17, 18 each having four longitudinal T-slots bolted thereto by T-shaped bolts 14 and between the extruded uprights 15, 18 and 16, 17 are provided bracing members 25 having a tapped bore 28 for accommodating the securing bolt for the end of a hinge on equipment shelf frame. To each of the brackets 34 are attached by means of a T-bolt a cross rail 37, the cross rails defining the equipment area. Mounted on each base 10 there are five shelves and associated cross rails 37 and bracing member 25. The racks are mounted in a side by side manner so that each column of shelves is separated by the base-plate 10 to provide a cable duct defined by the W- shaped side walls 30 attached to the extruded uprights. Access to the cable duct is by means of a hinged door 45 mounted on horizontal bracing members 43 attached by T-bolts to the uprights. Cable trunking is bolted to a channel member (not shown) which is secured to gusset members, Fig. 1 (not shown) on the top of the last cross members of the base-plate. Voltage supply bus-bars run in parallel-spaced relationship along the full length of the racking at its base and are secured to saddle insulation on the base-plate. The equipment shelves are enclosed by covers which fit into channels formed by extruded section 76, Figs. 6, 7 (not shown), the covers being sealed by means of sealing strip 85.
Patent GB-443426-A (GB)
Title: Improvements in or relating to very short wave radio systems and apparatus
IPC: F16H15/50
Filed: 1934-08-25
Abstract: 443,426. Wireless signalling; discharge apparatus. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Assignees of Zworykin, V. K. ; 4800, Walnut Street, Philadelphia, U.S.A.) Aug. 25, 1934, No. 24548. Convention date, Aug. 31, 1933. [Classes 39 (i) and 40 (v)] [See also Group XX] Centimetre waves are reflected, refracted, or diffracted by lenses, prisms; or gratings formed of low-pressure gas. filled tubes provided with means for varying the internal ionization. As shown in Fig. 1, a lens - shaped area of ionization is formed in a gas-filled bulb by means of a band-shaped electrode 3 and an axial electrode 5 spring-supported at 7. This serves to refract an incident beam of short-wave energy as shown in dotted lines. A converging lens 13 with ionizing-electrodes 15, 17, is shown in Fig. 2. Fig. 3 represents a concentric array of circular tubes 23, variably ionized by electrodes 25 to produce either a diverging or converging effect, Straight tubes may be arranged to form a parabolic reflector, or piled together to form a prism. Fig. 8 shows a diffraction grating, the alternate tubes 37, 39 being differently ionized so as to split the incident beam into two components, oscillating in phase. By applying a varying potential across the electrodes of the lens shown in Fig. 1, it may be used to modulate a carrier beam passing through it. Fig. 13 shows a reflecting array 70 used to inform a navigator of his location. A beam transmitter 71 on the aeroplane sends out a carrier wave. This is reflected back to a receiver 75 on the aeroplane by the ground array 70 which modulates it with an identification signal. A similar arrangement is used to enable one ship to identify another in foggy weather. Specification 425,571 is referred to.
Patent GB-159710-A (GB)
Title: A new or improved machine for granulating moist material
IPC: B07B1/24
Filed: 1920-06-29
Abstract: 159,710. Wilde, Ltd., G. P., and Worsley, E. June 29, 1920. Moulding-machines.-A machine for granulating or granulating and mixing fine moist materials comprises a rotary disc B between two stationary discs A. The disc B carries a number of cups or receptacles D which take the material frcm the hopper G and convey it to the point of contact of the disc with the straight sieve E. The cups &c. D are pivoted to the disc B, and their forward ends d<2> are heavier than their rear ends d<3> so that normally the latter fits into slots b in the disc B. As the cups approach the sieve their ends d<2> are pressed inwards and the contents of the cup are expressed through the sieve.
Patent GB-1107783-A (GB)
Title: Improvements relating to microporous plastics sheet material
Inventor: SHARP FRANK
IPC: C08J9/26
Filed: 1964-06-12
Abstract: A microporous plastics sheet is made by mixing together a plastics material, a solvent therefore, and a particulate pore forming material to produce a dough, forming the dough into a strip, heating the strip to such a temperature (the "Thermal Shock Temperature") that the particles of pore forming material are exposed within the strip and substantially all the solvent is driven off, immersing the strip in an aqueous bath to leach out the exposed pore forming particles, and finally drying the porous strip thus formed.  The plastics material may be plasticized or unplasticized PVC, low or high density polythene, polypropylene or polyurethane, the "Thermal shock temperature" being not less than 130 DEG  C., 150 DEG  C., 130 DEG  C., 150 DEG  C., 170 DEG  C. and 185 DEG  C. respectively.  The pore forming particles may be salts of alkali or alkaline earth metals or ammonium salts, e.g. sulphates, chlorides and bicarbonates. In one embodiment (see all Figures, not shown) ground ammonium sulphate is mixed with powdered PVC at a station (30) and the mixture introduced into a twin screw mixer (60) during the passage through which a solvent and a minute proportion of a melting agent is added through a feed pipe (113), the dough thus formed being subsequently de-aereated. The de-aereated dough is then fed either directly to an extrusion die or, as in the example, via a granulator 17 and storage hopper, to an extrusion die, whence it is formed into a ribbed sheet. The sheet is then passed through successively hotter regions in a hot air oven (see Fig. 3) and heated to the required temperature, after which it passes through a series of water baths each successive one being higher than the next (see Figs. 4 and 5) so that a counter current of water is produced. The now porous sheet is finally passed to a drying oven (160) having successively cooled zones, to form the finished strip.  Material suitable for clothing, battery separators or filters may be made.