baber/WOPTO huggingface dataset:
Patent GB-684731-A (GB)
Title: Improvements in or relating to frictional driving mechanisms
IPC: F16H13/02
Filed: 1951-01-25
Abstract: 684,731. Friction gearing. PAPP, P. Jan. 25, 1951 [Feb. 6, 1950], No. 1914/51. Class 80 (i). [Also in Group XXXIV] In a friction drive of a high speed spindle 4 the spindle is supported entirely by its engagement between driving friction wheels 5, 8 and 6, 7 on rigidly journalled shafts 9, 10 respectively and further driving friction wheels 16, 17 on a shaft 18 which is journalled in a slide member 27 which is pressed resiliently by a spring 34 towards the spindle 4 to maintain the driving contact. The shafts 9, 10 and 18 are driven through flexible couplings 40 from shafts 44, 45 and 46 respectively carrying pulleys 47-51 which are suitably driven by belts from a driving motor (not shown). The pairs of driving discs 5, 6 and 7, 8 are arranged to overlap radially so that the distance between their centres is less than the sum of their radii. The spindle 4 is located axially by means of a peripheral ridge 73 formed thereon engaging between flanges 74, 72, the latter being on the wheel 17 which is urged axially by a spring 22 adjustable by a screwed sleeve 23.
Patent GB-405795-A (GB)
Title: Improvements in or relating to the manufacture of parts of hydraulic apparatus adapted to resist wear by impact fatigue due to cavitation or jet impact
Filed: 1933-01-20
Abstract: Hydraulic gearing, turbines, centrifugal and screw or like pumps, and ships' propellers have those parts which are subject to the risk of erosion arising from cavitation or jet impact made at least in part of readily machinable tough steel which is hardened at the surface. The hardening may be effected by case hardening or by nitrogenization and with slow cooling in the case of alloyed steels.  The parts concerned may be the rotor blades of turbines and pumps and the guide apparatus or nozzles, when such are present, of hydraulic turbines. Only the areas which are exposed to impact fatigue stress need be hardened.
Patent GB-1129241-A (GB)
Title: Improvements in or relating to television receivers
Inventor: SINCLAIR CLIVE MARLES
IPC: H04N5/44
Filed: 1966-01-14
Abstract: 1,129,241. Diplex radio signalling; transistor radio receiving circuits. SINCLAIR RADIONICS Ltd., and C. M. SINCLAIR. 14 Jan., 1966, No. 1947/66. Headings H3T and H4L. In a synchronous detector for a television receiver an oscillator and mixer circuit receiving a composite television signal input is adapted to be injection-locked to the vision carrier frequency, or to an integral multiple thereof, and is connected to a video amplifier. As described, signals received on an aerial 1 are applied, after amplification by an R.F. amplifier comprising a common-base connected transistor 22, to the emitter of a common-base connected transistor 24. A variable inductor 25 connected to the collector of the transistor 24 is ganged with the input tuning coil 18 of the R.F. amplifier and forms part of an oscillator circuit comprising also the collector to base capacitance of the transistor 24, a capacitor 26 shunting the emitter and collector of the transistor 24, and decoupling capacitors 30, 31. This oscillator locks in with the video carrier, and causes the transistor 24 to act as a synchronous detector, so that the output on a lead 34 includes detected video signals and also signals at the intercarrier frequency, that is, the difference between the frequencies of the audio and video carriers, which are modulated by the audio signals. The video signals are amplified by transistors 35, 36, 37, output being given on a lead 46. A tuned transformer 38 selects the intercarrier signal which is amplified at 41 and demodulated at 44. Audio signals are obtained on a lead 45. The combined mixer and oscillator, comprising the transistor 24, may be replaced by separate mixer and oscillator stages, and the R.F. amplifier, comprising the transistor 22, may be followed by a frequency conversion stage.
Patent GB-160446-A (GB)
Title: Wrist or hand blotters
IPC: B43L17/04
Filed: 1921-01-13
Abstract: 160,446. Orzel, P. March 18, 1920, [Convention date]. Blotting-appliances .-A blotting-appliance for attachment to the hand or wrist consists of a resilient metal base A to which the blotting-member B is clasped by spring clips C held in place by an elastic or like strap D. The base member A is formed from a rectangular strip of metal bent as shown and provided with T-slots 13 at its ends. The clips C are bent to fit the turned-up ends of the base member and are provided with a stampedup portion 18 and a slot 17 to register with the slots 13. The strap D is clipped by the part 18 and passed through the slots 17, 13, a buckle 19 being provided for adjustment to the hand or wrist of the user.
Patent GB-381804-A (GB)
Title: Improvements in or relating to couplers for railway vehicles or the like
IPC: B61G5/08
Filed: 1932-01-22
Abstract: 381,804. Automatic couplings for rail-. way &c. vehicles. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.- (Robinson, J. ; 415, Lexington Avenue, New York, U.S.A.) Jan. 22, 1932, No. 1994. [Class 103 (v).] In draught couplers supporting automatic train pipe connectors for railway and like vehicles the connectors are set in a plane which is to the rear of the guiding surfaces of the couplers but in front of the coupling line so that the preliminary lateral aligning of the connectors is performed by the coupling action of the draught couplers and the connectors are engaged before the couplers are engaged; moreover the longitudinal line of the connectors is angularly displaced with relation to the longitudinal line of the couplers so that the projecting guiding surfaces of the connectors do not foul the air pipe during the gathering action of the connectors. As shown coupler members 4 of the Willison type have supported therefrom train pipe connectors of a modified pin and funnel type the centre line of the connectors being indicated at B while the centre line of the couplers is indicated at A. As shown in Figs. 4 and 5, the coupler members 4 out of lateral alignment on either the lock or the guard arm side of the couplers perform a preliminary aligning action for the connectors before the pins 7 of the connectors actually engage the guiding funnels to interengage the connectors. The train pipe connectors are supported on brackets 3, Figs. 8 and 9, from the respective couplers and comprise a member 25 having parallel plates 25<1>, a flange 26 and an end having two concentric concave seating surfaces 29, 30, and a shank 9 having the air pipe gaskets 19 and air pipe 14 the shank 9 having the pin 7 and funnel 6 guiding surfaces. The shank 9 is seated in the concave seating surface 29 and is held therein by a bolt 33 having a spherical head 34 so that the joint is a universal one. A spring 28 is disposed between the flange 26 and an end member 37 on the bolt to keep the shank 9 and member 25 in contact while a spring 27 disposed between the flange 26 and a plate 39 carried by bolts 40 from the bracket 3 press the air pipe gaskets into close engagement. Fig. 8 shows the connectors out of vertical alignment but continued approach of the coupler members 4 towards one another causes the pins 7 and funnel surfaces 6 to guide or tilt the shanks 9 about the surfaces 30 into alignment for the pipe gaskets 19 to engage.
Patent GB-509836-A (GB)
Title: Improvements in or relating to electrical insulating material
IPC: H01B3/44
Filed: 1938-01-21
Abstract: 509,836. Polystyrene. STANDARD TELEPHONES & CABLES, Ltd., and WEBB, J. K. Jan. 21, 1938, No. 2067. [Class 2 (iii)] [Also in Group VIII] Fibrous electrical insulating-material in sheet, tape, or like form is impregnated with monomeric styrene, with or without a plasticizer, and the styrene polymerized at a temperature below 100‹C. to yield a product that may be heated to 120‹C. without becoming sticky. The polymerization may be effected in a wound roll of the impregnated material and in a container, the winding preferably taking place under the surface of the styrene : to facilitate subsequent separation of the turns the outer layers are interleaved with a styrene impregnated fabric.
Patent GB-461306-A (GB)
Title: Electric transmission gearing
IPC: H02K51/00
Filed: 1936-01-22
Abstract: 461,306. Transmitting mechanical power. HEFEL,K. Jan. 22, 1936, No. 2096. Convention date, Jan. 23, 1935. [Class 38 (iv)] In an electric transmitting system utilizing a generator and a motor with separately excited field members connected to the driven shaft, the armatures of the motor and generator being respectively stationary and connected to the driving shaft, the velocity ratio is controlled by regulation of the field of the motor by the controlling member of the prime mover and by a governor associated with the driven shaft. The driving shaft 1 carries the generator armature 3, the fields 6, 7 of both machines being carried by a yoke 15 secured to the driven shaft 2 while the armature 8 of the motor is fixed. The armatures are connected by commutators and brushes 10, 11. The field winding 7 of the motor is supplied from the battery 30 with current of varying voltage through the potentiometer 16, the ends of which are connected to the battery while the centre is earthed. The potentiometer contacts 34 connected to the slip rings 13 are adjusted by a connection 17, 27, to the pedal 19 controlling the prime mover. The potentiometer 16 is adjusted by a governor 18 on the driven shaft 2 so that the speed of the driven element is raised automatically in dependence upon the resistance of the driven shaft and the power output of the prime mover. A resistance 25 in the supply from the battery 30 to the generator field gives rapid acceleration but is cut out as the driven shaft speeds up. A reversing switch 26 is provided in the motor field circuit. The driven shaft 2 may be braked by adjustment of the potentiometer 16 by an independent braking pedal.
Patent GB-450593-A (GB)
Title: An improved variable-speed gear
IPC: F16D67/00
Filed: 1935-01-21
Abstract: 450,593. Hydro-mechanical variablespeed gearing. PRICKETT, T. C., 12, Park Mansions, Colehill Gardens, Fulham Palace Road, London. Jan. 21, 1935, No. 2107/34. [Class 80 (ii)] An automatic variablespeed gear or torque converter comprises planet gears 4 carried by a flywheel member 2 fast on a driving- shaft 1. The gears 4 mesh with a sun gear 5 and with an annulus 6. The sun gear 5 is rigid with the primary member 7 of an hydraulic coupling. The annulus 6 is rigid with the secondary member 8 of the coupling which member 8 is secured to a driven or load member 10.
Patent GB-683512-A (GB)
Title: Improvements in or relating to wrapping machines
IPC: B65B35/44
Filed: 1951-01-29
Abstract: 683,512. Wrapping-machines. FORSTER, L. G. Jan. 29, 1951, No. 2217/51. Addition to 680,115. Class 94(i) The packet end stops 90 described in the parent Specification are replaced by a plate 9 having a horizontal flange which is secured by a screw 13 passing through a slot 14 to a horizontal flange on a vertical plate 10 carrying the movable end brush 92, whereby the plate may be adjusted forwardly to compensate for wear of the brush. The plate 10 is carried by an arm 96 pivoted at 16 on a fixed bracket 101, the pivot being adjustable in a slot in the bracket by means of a screw 28, 30 so that the position of the plate 9 and end brush may be adjusted to suit packets of different lengths. The arm may be swung to the inoperative position shown in dotted lines and is held against stops in the operative and inoperative positions by a spring 33. The upper folding plate 37 is of U-shape in plan to accommodate the plate 9 and is carried by an arm 39 secured to a plate 43 having V-shaped edges running between the edges of the outer races of ball or roller bearings 44. The plate is reciprocated vertically by linkage 46, 47. The side brushes are carried by bars 51 adjustable transversely in brackets 52 by screws 54, 55. Specifications 680,187 and 681,412, [Group XXXIV], are referred to.
Patent GB-986380-A (GB)
Title: Apparatus for testing semi-conductor devices
IPC: G01R31/26
Filed: 1962-01-22
Abstract: 986,380. Transistor testing. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 12, 1962 [June 13, 1961], No. 22501/62. Heading G1U. Apparatus for testing a semi-conductor device e.g. a transistor 56 (Figs. 7, 8), comprises an annular metallic wall 79, metallic rings or discs 51, 51<SP>1</SP>, 77, 78, an input coaxial line 70 and an output coaxial line 73, the transistor being carried by a collet chuck 84 which engages with the central conductor of line 73. The collector terminal 89 is in contact with the metallic casing of the transistor, whilst the base terminal 87 is attached a metallic disc 86 and the emitter terminal 90 is connected to the central conductor 71 of line 70 through a further collet chuck 91. Discs 51, 51<SP>1</SP> comprise a plurality of radial slots 54 (Figs. 4, 7) each of which contains a carbon resistor 53 having its innermost end connected to conductor 71, or74, as shown, the outermost end being attached by a screw 55 to the respective disc. This arrangement of the carbon resistors provides two resistances 59, 63 with a low inductive reactance (Figs. 5a, 5b, not shown). Lines 70, 73 are connected to a square-pulse generator 57 and a C.R.O. 62, respectively. Generator 57 comprises mercury relays 111--114 controlled by a multivibrator 103, and a coaxial cable 100 which is periodically charged through a coil 102. Positive and negative pulses are applied to the emitter and the collector of the transistor, respectively, through resistors 61, 65, the pulses being provided by variable voltage sources 104, 105 connected to resistors 61, 64 through contacts 133, 134 in relays 113, 114. Pulses of very short duration, governed by a contact 101, are superimposed on the pulses provided by sources 104, 105 (Fig. 9, not shown), the response of the transistor being detected by the C.R.O. The uppermost group of resistors 53 (according to Fig. 7.) may be omitted (Fig. 2, not shown) whilst a further metallic disc is provided in the apparatus to form with the disc adjacent the output line an H.F. shunt capacitor 18 (Fig. 1), the two discs being separated from one another by a thin foil of dielectric material. In this embodiment the input coaxial line is connected to a square-pulse generator 11 and the output coaxial line is coupled to a C.R.O. 15, the single group of resistors 53 constituting a resistance 16. Resistors 53 in each embodiment may be replaced by a resistance disc (Fig. 3, not shown) lodged between two metallic discs of differing diameters.
Patent GB-102543-A (GB)
Title: A Water Heating Apparatus.
Inventor: DICKIE JAMES
IPC: F24C13/00
Filed: 1916-02-15
Abstract: 102,543. Dickie, J. Feb. 15, 1916. Heating water; water-tube boilers.-Relates to hot-water supply apparatus of the kind in which a boiler of the coiledtube type is connected by flow and return pipes with a cistern. A metal coiled tube A, placed in a fire-place or furnace or adapted to be heated by a gas burner, is connected to the cistern C by flow and return pipes D, E respectively, each fitted with a stop-cock F, H and with a non-return valve G, I. The cistern C is provided with a feed-pipe L, an overflow pipe E, and a draw-off tap J. A number of separate coils A may be connected as described above to one cistern C.
Patent GB-489550-A (GB)
Title: Manufacture of films and foils from polymerisation products
IPC: C08L67/02
Filed: 1937-01-26
Abstract: Films and foils are prepared by casting a solution of a polymerized vinyl ester containing an addition of a condensation product of a polyhydric alcohol with an ether-dicarboxylic acid having the formula <FORM:0489550/IV/1> , where R and R1 each stands for a hydrocarbon residue, upon a support, and after evaporation of the solvent, removing the resulting film or foil from the support.  The polymerized vinyl esters may be prepared from vinyl acetate, vinyl chloracetate, acrylic and methacrylic acid methyl and ethyl esters, or mixtures thereof, and also from mixtures of vinyl acetate and maleic acid methyl or ethyl ester.  The condensation product may be the esters of diglycollic, methyl diglycollic or dihydracrylic acids with glycols, such as 1 : 3-butylene glycol, 2 : 3 : 4-trihydroxybutane, the dihydroxy-propanes, the mixtures of polyhydric alcohols obtained by hydrogenating sugars, glycerol, polyglycols, erythritol, sorbitol, mannitol, pentaerythritol, trimethylolpropane and the ethers thereof which contain more than one free hydroxyl group.  The films and foils are suitable as interlayers for glass, adhesive sheets for veneering or sticking together fabrics or paper, or packing foils.  In examples, films are prepared from (1) a solution in acetone of polyvinyl acetate and a condensation product of 1 : 3-butylene glycol and diglycollic acid; (2) a solution in ethyl acetate of polyvinyl chloracetate and a condensation product of 1 : 3-butylene glycol and diglycollic acid; (3) a solution in acetone of polyvinyl acetate and a condensation product of dimethoxy-octylene glycol and diglycollic acid; (4) a solution in ethyl acetate of a mixed polymer from vinyl acetate and maleic acid dimethyl ester, and a condensation product of diglycollic acid and dibutylene glycol; (5) a mixed polymer from vinyl acetate and acrylic acid butyl ester, and a condensation product of diglycollic acid and 1 : 3-butylene-glycol; (6) a solution in methylene chloride of polyvinyl acetate and a condensation product of dilactic acid with octylene glycol; (7) a solution in ethyl acetate of polyvinyl chloracetate and a condensation product of dilactic acid with dimethoxy-octylene-glycol; (8) a mixed polymer from vinyl acetate with acrylic acid butyl ester, and a condensation product of 1 : 3-butylene glycol and dihydracrylic acid; (9) a solution in ethyl acetate of polyacrylic acid methyl ester and a condensation product of 1 : 3-butylene-glycol with diglycollic acid; (10) a solution in acetone of a mixture of polyvinyl acetate, polyvinyl chloracetate and a condensation product of 1 : 3-butylene glycol with diglycollic acid.
Patent GB-512122-A (GB)
Title: Improvements in supporting structures for turn-tables
IPC: B61J1/04
Filed: 1939-01-23
Abstract: 512,122. Turntables. VOGELE AKT.-GES., J. Jan. 23, 1939, No. 2309. Convention date, Jan. 24, 1938. [Class 104 (ii)] A turntable support comprises a central pin b to which are connected by welding &c. a number of radial beams c welded &c. at their outer ends to an annulus a resting on a number of radial sleepers e.
Patent GB-1400682-A (GB)
Title: Apparatus for regulating pumps
IPC: F04C14/22
Filed: 1973-01-17
Abstract: 1400682 Fluid-pressure servomotor systems ALBERT HANDTMANN 17 Jan 1973 [25 Feb 1972] 2364/73 Heading G3P [Also in Divisions F1 and F2] To control the output of a vane-type pump 1 feeding an hydraulic or pneumatic motor 39 from a reservoir 13 a cam ring 7 is movable by pistons 14, 15 to which pressure is applied from conduits 10, 11, the piston 15 being biased by a compression spring 18. In accordance with pressures p1, p2 in chambers 28, 29 of a regulating device 17 a spooltype valve-member, or "slide", 20 either closes a conduit 26 or renders it in communication with the conduit 10 or the conduit 11 by way of a conduit 22 or 24, the chamber 29 being connected by a conduit 42 serving a manometer 41 to the output side of a pressure-regulating valve 37, which produces a pressure differential p1 - p2. The slide is biased by compression springs F1, F2 acting on a pin 34 and plunger 35. When the pressure p2 overcomes the force of the spring F2 the plunger loses contact with the pin and the spring load on the slide is thus reduced to give the pressure p1 in the chamber 28 greater influence.
Patent GB-307953-A (GB)
Title: Improvements relating to weft stop motions
IPC: D03D51/00
Filed: 1928-01-25
Abstract: 307,953. Frost, W. H. Jan. 25, 1928. Stop-motions, measuring.-Relates to means for measuring the length of cloth or number of picks that can be woven with one cop or the like and causing a stop-motion to come into action by a lever falling into a notched disc, and comprises means for causing the stop-motion to come into operation slightly before the weft has been exhausted with the shuttle in correct position for re-starting, together with means for causing the apparatus to re-set itself automatically when the lever is moved out of the notch in the disc either automatically or by hand. A worm wheel a<8>. Fig. 5, on a sleeve loose on a shaft a<10> is driven :through ratchet gear from the lay and is normally held by a spring a<26> in clutch engagement with a disc a<14> which is loose on the sleeve and is provided with a notch a<15>. When the disc a<14> has rotated a predetermined amount, a projection on a lever E, Fig. 1, drops into the notch a<15> and a rod e<6> connected to a lever e<8> allows the latter to move into the path of the weft hammer G so that a spring plate e<10> engages the starting handle F to stop the loom. On raising the rod e<6> by hand or automatically, the projection on the lever E is first moved out of-the notch a<15> and further movement then causes a forked lever device to compress the spring a<26> and declutch the disc a<14> from the worm wheel a<8>. A spring a<21> is then free to cause the disc a<14> to turn till a stop carried thereon comes into engagement with a stop d. On lowering the lever E, the disc and motion wheel a<8> are again clutched together, and the projection of the lever E rides on the periphery of the disc. To set the device to stop the loom for other lengths of fabric woven or picks made, the position of the stop d is altered by rotating the worm wheel D on which it is mounted by a hand-wheel on a worm shaft d<2> having means for locking it in adjusted position. In some cases, the device is driven by chain or spur gearing from the take-up roller or other part having an intermittent or reciprocating movement. The Provisional Specification describes an arrangement in which a clutch wheel on a sleeve is normally held by a spring in engagement with a driving device on the spindle of the take-up roller, and has a disc provided with a. notched periphery and a projection on one face adapted to engage an adjustable projection on another disc on the sleeve. The device may be driven from the weft hammer.
Patent GB-580048-A (GB)
Title: A distillation process for separating 3-picoline, 4-picoline, and 2, 6-lutidine
Inventor: CISLAK FRANCIS EDWARD
Filed: 1944-02-09
Abstract: The bases 3-picoline, 4-picoline, and 2, 6-lutidine are separated by fractional distillation of the mixture in the presence of water. Water is added to the bases in the still, or alternatively, steam may be passed in.  All three bases form azeotropes with water.  One hundred grams of a mixture containing 25 per cent. of 2, 6-lutidine, 40 per cent. of 3-picoline, and 35 per cent. of 4-picoline is distilled with 200 to 300 grams of water, and the vapours are passed through a fractionating column equivalent to at least 30 theoretical plates; the azeotrope of 2, 6-lutidine (b.pt. 95.6 DEG C.) is obtained first, then that of 3-picoline (96.7 DEG C.), and finally that of 4-picoline (97.0 DEG C.). If desired however, the distillation may be stopped before the azeotrope of water and 4-picoline is distilled through the column. The bases are recovered from the azeotropes by agitating the latter with caustic soda, either in solid form or as a 70 per cent. solution, and then allowing the mixture to settle, when the base forms a separate upper layer and is of a purity of 90 per cent. or better.  The bases may also be recovered by distillation in the presence of benzene.  The ratio of the bases to the water charged to the still in the initial azeotrope distillation may be varied, depending upon the products it is desired to obtain.  Thus if only 2, 6-lutidine is required, it is necessary to add only one to one and a half parts of water for each part of 2, 6-lutidine present in the mixture.