baber/WOPTO huggingface dataset:
Patent GB-1126502-A (GB)
Title: Improvements in or relating to switch mechanisms for television receivers
Inventor: MARTIN ANTHONY WYARD
IPC: H03J5/10
Filed: 1966-01-22
Abstract: 1,126,502. Cams; linkwork. E. K. COLE Ltd. 28 March, 1967 [22 Jan., 1966], No. 3010/66. Heading F2K. [Also in Division H3] A cam arrangement for operating the channel selector of a television receiver (see Division H3) comprises a member 18 (Fig. 2) on the control shaft 1 having a cam profile for each of the angular positions to which the shaft 1 can be set by indexing means 13, 14. The cam follower 19 is a roller on a pivoted lever 20 which rocks a treadle about a shaft 24. The latter carries a gear sector (27 in Fig. 1, not shown) which meshes with a gear on the tuner shaft, this being spring biased to one of the extreme angular positions of the shaft 24. When the roller 19 engages the tips of the cam surface the treadle 23 is pushed down against the spring. In the valleys of the cam surface the spring pushes the treadle upwards until it strikes the end of one of a series of rods 5 the positions of which are adjustable by screwed threads 5a engaging tapped holes in a disc 16 on the shaft 1. In a modification (not shown) the rods 5 are mounted in the valleys of the cam surface 18 and engage either the roller 19 or a projection on the lever 20. In another version (Fig. 9) the roller 19 is carried on a bellcrank 46 pivoted at 47, the other end of which is forked to receive a projection 23a (Fig. 6) on the treadle 23. Linkwork for converting rotary motion into reciprocating motion comprises a pin wheel 30 (Fig. 3) on the shaft 1 carrying pins 43, 44 alternately on opposite sides thereof and engaging respectively the clawed ends of bell-cranks 37, 38 having a common pivot. These pins are provided only in those positions where operation of the mechanism is required. The other ends of the bell-cranks are attached to levers 35, 36 pivoted to one end of a further lever 33 which carries a stud 42 for conveying linear reciprocating motion by means not shown. The levers 35, 36 are urged towards a closed position by a spring 41 and hold the lever 33 against one or other of stops 32a, 32b. In a modification (Fig. 6) the levers 35, 36 are replaced by the spring 41 and the lever 33 is replaced by a sliding plate 41 carrying a lug 64 for transmitting the motion.
Patent GB-891259-A (GB)
Title: Improvements in or relating to drive mechanisms for spindles of relieving lathes
Inventor: WAGENZINK GUNTER
IPC: B23Q5/56
Filed: 1960-01-27
Abstract: 891,259. Lathe details. GROSSDREHMASCHINENBAU 8. MAI VEB. Jan. 27, 1960, No. 3027/60. Class 83 (3). A drive mechanism for the spindle 6, Fig. 1, of a relieving lathe includes a worm-wheel 15 and a spin gear 6 fixed thereon. The latter is adapted to be driven by a spin gear 9 slidably splined on a driving shaft 3. This shaft carries a spur gear 10 which meshes with a spur gear 11 integral with a bevel 12 on a shaft 4. This bevel drives a bevel 13, Fig. 2, on a cross shaft 5 carrying a worm 14 and supported in a dropcasing 2 pivoted about the shaft 4. The dropworm casing 2 is held resiliently against the worm-wheel for driving by a spring-loaded pawl 17 pivoted to the headstock casing. The pawl arrangement is adjustable by a screw 18 to vary the mesh between the worm and wormwheel.
Patent GB-777627-A (GB)
Title: Improvements in transistor amplifiers
IPC: H03F3/18
Filed: 1955-02-02
Abstract: 777,627. Transistor amplifying circuits. WESTERN ELECTRIC CO., Inc. Feb. 2, 1955 [Feb. 11, 1954], No. 3082/55. Class 40(6) The emitter of an earthed collector stage 11 is D.C. connected to the base of an earthed emitter stage 15, a battery 26 biasing the collector 13 in the reverse sense while a battery 28 biases the emitter 16 in the forward sense. Resistors 27, 30 tend to stabilize the emitter currents, capacitor 29 decoupling resistor 27. A negative feed-back loop B is arranged between the taps on the hybrid transformers 32, 20 and a small capacitor 24 is added to correct the frequency characteristic. In a modification, Fig. 2 (not shown) the feedback from transformer 32 is taken over a capacitor to a resistor in series with a single secondary winding on transformer 20. A frequency correcting capacitor is arranged between the collector of transistor 15 and the base of transistor 11. The transistors may be of opposite conductivity types.
Patent GB-642787-A (GB)
Title: Improvements relating to fish-dressing machines
IPC: A22C25/14
Filed: 1948-02-03
Abstract: 642,787. Fish dressing. FISADCO, Ltd., and FREEMAN, P. Feb. 3, 1948, No. 3171. [Class 28(ii)] A gill-removing tool 6 is moved down accurately into contact with the gills of a fish irrespective of its length, by mechanism actuated when the fish head passes an actuating member, the fish being pulled tail first by clamp 2 on an endless band conveyer through a known splitting machine. When the fish passes out from between the guides 3, 4 the guide 4 moves in by spring pressure whereby bell crank 19 allows a rod 16 to drop since the cam follower 17 thereon comes into a gap 20 in the cam 18. The rod 16 thus allows spring 15 to raise a finger 13 up from a pin 12 on a split friction clutch 11 whereby a cam 9 rotates and lowers the arm 7 and attached gilling tool 6 into gilling position. A series of clamps 2 are uniformly spaced on the endless conveyer 1. 5 is the usual splitting wheel.
Patent GB-763473-A (GB)
Title: Refrigerator evaporator trays
Inventor: DICKSON RONALD
IPC: F25D25/02
Filed: 1954-02-03
Abstract: 763,473. Making refrigerators; brazing. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Jan. 26, 1955 [Feb. 3, 1954], No. 3198/54. Classes 83 (2) and 83 (4). [Also in Group XIII] A method of manufacturing a refrigerator evaporator tray comprises assembling together in a jig two substantially flat plates 1, 11 having channelled ends 9, 17 respectively, and a corrugated metal sheet 19 placed so that the corrugations run perpendicular to the channel 9, 17. Each component is coated with brazing material, and four holes are stamped, two at each end of plate 1 for flux drainage. The assembly is then dip-brazed, two of the holes are blanked off and tubes 21, 23 are brazed into the remaining holes to connect the evaporator with the rest of a refrigeration system. The ends transverse to the corrugations may be turned through 90 degrees to form a channel-shaped evaporator.
Patent GB-1171584-A (GB)
Title: Improvements in or relating to Hydro-Pneumatic Shock Absorbers
IPC: B60G17/044
Filed: 1968-01-22
Abstract: 1,171,584. Self-levelling suspension units. AUGUST BILSTEIN K.G. 22 Jan., 1968 [21 Jan., 1967], No. 3297/68. Heading F2S. A self-levelling hydropneumatic suspension unit consists of a hollow pump plunger 16 working in the hollow piston-rod 33 of a damper piston 10 which in turn works in the liquid-filled inner cylinder 32 of a double-walled cylinder. This inner cylinder is surrounded by a gas pressurized annular chamber 35 and surmounted by a gas-pressurized liquid reservoir chamber 4. The apparatus acts as a level regulator under the control of valves 6, 41 and 46, all of which are mounted in a sealing member 40 which separates the inner cylinder and chambers 4 and 35 from each other. The gas 4b in chamber 4 may be in direct contact with the liquid 4a therein, as shown, or separated therefrom by a floating piston 54, Fig. 2 (not shown). The level regulation action is as follows. On an increase in load the piston 10 rises and in so doing causes the plunger 16 to pump liquid through valve 41 into the above-piston cylinder space 37 to lower the piston 10. As the latter descends, suction valve 6 opens so that liquid from the reservoir 4 replenishes the pumping space 22. Eventually the enlarged end 18 of the plunger becomes aligned with grooves 17 in the hollow piston-rod 33 and pumping ceases. If the load on the suspension unit diminishes, the piston 10 descends and so pulls down the slave tube 14 inside the piston rod until the slave tube engages the enlargement 49 at the end of the rod 45 and thereby opens valve 46. This allows working liquid from chambers 36 and 37 to flow by way of the pumping space 22 to the reservoir 4, the reduction in working pressure resulting in an upward movement of the piston 10.
Patent GB-243201-A (GB)
Title: A crystal detector for wireless receiving apparatus
IPC: H01L29/00
Filed: 1925-02-06
Abstract: 243,201. Marshall, C. R. Feb. 6, 1925. Crystal detectors.-A crystal detector comprises a bracket i carrying one electrode r which is connected to a pin p<1>, and a barrel b slidably mounted in the bracket i and connected to a second pin p. The second electrode, k, which alternately may be a " catwhisker," is carried by the barrel b, and means are provided for effecting fine axial adjustment of one of the electrodes. The sockets t co-operating with the pins p, p<1> may be those of a thermionic valve. Screws m, r serve both to establish electrical contact and to clamp the barrel b and the electrode n. The fine adjustment comprises a spring f and adjusting nut e and a plunger d clamped to spindle c and prevented from rotating by a screw d. The electrode k may be radially adjustable in the arm q secured to the spindle c.
Patent GB-369712-A (GB)
Title: An improved registering and calculating device for scoring games
IPC: A63D15/20
Filed: 1931-02-03
Abstract: 369,712. Calculating - apparatus. HILSON, O. V., 29, Upper St. James's Street, Brighton. Feb. 3, 1931, No. 3408. [Class 106 (i).] A device for scoring darts, billiards or other games comprises a number of digit-bearing discs rotatably mounted behind an apertured panel to indicate the " score obtained " and the " score required," the discs of highest denomination being associated with a " range " disc inscribed to indicate the points to be scored in games of various extents, and transfer mechanism between the discs of different denomination, the arrangement of the range disc and the discs of highest denomination being such that the first registering movement of the discs of highest denomination obscures the range disc and displays the appropriate digits of the highest denomination. In Figs. 6 and 7 is shown an apparatus for scoring the points of two opponents in the game of darts. The score obtained by one player is displayed through a row of orifices m and the score still required by him is displayed through a second row n similar rows being provided in the lower half of the board for the second player. The units and tens digits are carried on discs u, t, bearing the digits in concentric rings. The hundred digits for the row m are carried on a disc h mounted freely on a square spindle i and provided with a gap j, Fig. 3, and projection k. On the same spindle but rotatable therewith are a numeral disc B displaying hundred digits through the hundreds aperture of the row n, and a disc A displaying the range of game, e.g. 301 up as shown, through the gap j and through the hundreds aperture of the row m. The spindle i may be rotated by a knob p, and the units and tens discs are rotated by means of apertured dials q, r. Numerals are inscribed on the panel behind the apertures and the score is added by inserting the finger into the appropriate aperture and rotating the dial until the finger meets a stop s. Arms F, G and wheels E transfer from the units and tens discs upon the completion of a revolution. The first movement of the hundreds disc h obscures the " range " disc and displays the hundred digit. A stop D co-operating with the projection k permits the range disc to be set by the knob p.
Patent GB-153816-A (GB)
Title: Cultivator
IPC: B62D51/04
Filed: 1920-02-04
Abstract: 153,816. Wilson, D. K. Feb. 4, 1920. Cultivators.-A cultivator is provided with longitudinally movable means for steering, the means being connected with the soil-working implements, so that the implements 1 may be moved while steering the cultivator, or the steering may be accomplished without moving the implements. The cultivator comprises a main frame 24 supported on wheels 49 driven by chain-and-sprocket gearing from a motor 61, a differential gear and a clutch being interposed in the train of mechanism. The tools are arranged in groups on each side of the machine. Each group of tools is carried by a tubular support 36 mounted in a sleeve 35 fixed to a bearer bar which extends longitudinally of the machine and is adjustably pivoted at its fore end to a hanger depending from the frame 24. At its rear end, each bearer is connected by a universal joint 39 to a member 40 connected by side plates to a tubular standard 43 joined by V-shaped links 45 to the main frame. Rollers are mounted in the gap between the side plates, and between these rollers controller rods 7 for steering the machine pass. These rods are connected through universal joints with a lever 11 pivoted on the main frame and carrying an arc-shaped rack 14 meshing with a segment rack 15 on a longitudinal beam 17. The beam 17 is attached to the main frame by a pivot 16 and is provided at its rear end with small carrying wheels 48. The rods 7 have handles 1 adjustably secured to their ends. A handle 23 is provided for lifting the rear end of the machine from the ground in reversing the direction of travel. By moving the rods 7 longitudinally in opposite directions the implement may be steered without affecting the tools or by swinging either rod transversely the corresponding set of tools may be adjusted independently of its neighbour. The device may be employed on other than motor-propelled cultivators.
Patent GB-300054-A (GB)
Title: Improved apparatus for emptying circular dust bins into a collecting receptacle or dust cart
IPC: B65F3/12
Filed: 1928-02-03
Abstract: 300,054. Marks, E. C. R., (Schmidt & Melmer). Feb. 3, 1928. Scavengers' carts are provided with a swing member carrying the inlet aperture between the side walls of the hood that closes the dust cart in such a manner as to be oscillatable in trunnions so that when the dust bin is tipped up the swing member wings inwards with one end and outwards with the other. As shown the hood comprises side plates i between which is pivoted at b a swing frame. This frame consists of side plates x, end covers s, t and plates z, w and is provided with an apertured plate d and closure plate e. The bin n is hooked on to the frame at u and tilted, causing a spring-biassed hook l to engage a pin o on the bin as soon as the levers k on the hook l are released from the abutment m. The frame a swings about the trunnions b so that the lower part moves outwardly and the upper part inwardly. The closure plate e is opened by means of brackets g and links h pivoted to the side plates i so opening the bin cover which is engaged with the closure plate e in known manner. The bin is returned by reversing the operation and owing to the coupling members o, u no stress is placed on the hinge c of the bin lid.
Patent GB-1123335-A (GB)
Title: Preparation of acrylate dimers and trimers
IPC: B01J31/02
Filed: 1967-01-26
Abstract: The invention relates to polymerizable mixtures comprising a dimeric and/or trimeric C1-C18-alkyl acrylate optionally in association with other comonomers such as methyl methacrylate and/or styrene, processes for polymerizing such mixtures and the polymer so prepared. (For the preparation of the dimeric and trimeric acrylates see Division C2.)  The copolymers, which may typically contain 40% by weight of methyl methacrylate, 40% by weight of styrene and 20% by weight of the trimeric acrylate, are effective as coatings that are resistant to cracking and have high impact strength.ALSO:Preparation of dimeric and/or trimeric acrylates from an acrylate monomer of the formula CH2=CH.COOR in the presence of a catalyst of the formula <F\1> or <F\2> wherein R is an alkyl group containing from 1 to 18 carbon atoms; R1 and R4 are the same or different phenyl, alkyl group containing from 1 to 18 carbon atoms or alkyl substituted phenyl in which the alkyl substituent(s) contain(s) a total of from 1 to 8 carbon atoms; and R2 and R3 are (a) the same or different alkyl groups containing from 1 to 18 carbon atoms optionally containing one or more inert substituents or (b) when taken together with the nitrogen to which they are attached form a saturated cyclic amine group containing up to 5 carbon atoms, and optionally an oxygen or sulphur atom in the ring which may contain one or more alkyl substituents having a total of up to 6 carbon atoms. The reaction is carried out at a temperature in the range 0 DEG  to 100 DEG  C. optionally in the presence of an inert volatile organic solvent, e.g. hexane, benzene or toluene.  The specified catalysts include N,N,N1,N1 - tetraethyl - or N,N,N1,N1 - tetramethyl - P - phenylphosphonous diamide and N,N-diethyl- or N,N-di-n-butyl-P,P-di-phenylphosphinous amide, and may be prepared as solutions by treating a suitably substituted dichlorosphosphine or chlorophosphine with an appropriate amine in one of the above-mentioned solvents and removing the amine salt which forms. Specified monomeric reactants include methyl, ethyl, iso-propyl-butyl, 2-ethylhexyl, t-dodecyl and octadecyl acrylates. Diethyl-2-methyleneglutarate and diethyl-2-methylene-4-carbethoxy pimelate are prepared from ethyl acrylate.  Hydroquinone monomethyl ether may be present as inhibitor during the reaction.
Patent GB-655846-A (GB)
Title: Improvements in scoop shovel excavating equipment
IPC: E02F3/42
Filed: 1948-02-06
Abstract: 655,846. Load-handling machines. NUTTER, T. Feb. 6, 1948, No. 3542. [Class 78 (iii)] [Also in Group XXI] In a scoop-arm machine an engine is provided for driving the front and rear road wheels and the hoisting winch. A shaft 29 from the engine enters a gear box 24a from which drives are taken off to the winch 17 by shaft 28 and by shafts 24, 25 to the differentials 26, 27 of the road wheels 3. The gear box 24a is so arranged that the power may be supplied to the winch and road wheels simultaneously or separately as required. The scoop 9 is carried by arms 10 pivotally secured to the front portion 7 of a framework 6 supported on the vehicle chassis, the front portion being carried beyond the front road wheels to act as an abutment 8 for the scoop when the latter is in a digging position. A triangular framework 12 is mounted on the chassis to carry some of the pulleys of the hoist system. The cab 1 accommodates a driver and one or more passengers.
Patent GB-162116-A (GB)
Title: Improvements in and connected with gas cocks
IPC: F16K5/08
Filed: 1920-02-06
Abstract: 162,116. Hands, F. E., and Stephens, W. W. Feb. 6, 1920. Plug cocks.-In a gas cock constructed of a small number of parts, the body 5 is provided with flanges 5a threaded for connection to the gas pipe. The rotatable plug 7 is secured by a screw 8 which retains also the control lever 9. The central portion 9<a> of the lever takes the place of the usual washer, and the usual limiting stops are omitted, the lever coming into contact with the flanges 5a in its extreme positions.
Patent GB-195026-A (GB)
Title: Process for separating or isolating organic gases or vapours of organic products
IPC: B01D53/02
Filed: 1921-12-16
Abstract: Organic gases or vapours which have been absorbed by charcoal are recovered by treating the charcoal with the superheated vapour of an organic product.  The superheated vapour of the absorbed product may be used.  Specifications 10126/14 and 156,543, [both in Class 55 (ii), Gas manufacture &c.], are referred to.
Patent GB-1132081-A (GB)
Title: Improvements in or relating to pressure vessels
Inventor: HAYES CHARLES
IPC: F16J12/00
Filed: 1965-01-28
Abstract: 1,132,081. Pressure vessels. ENGLISH ELECTRIC CO. Ltd. 25 Jan., 1966 [28 Jan., 1965], No. 3789/65. Addition to 1,023,011. Heading F4P. The thin tubular metal shell 10 of a pressure vessel has a neck extending into a ring 11 having an outwardly extending flange 14 at its inner end which abuts against the shell 10 and is overlapped by a reinforcing winding 13 of resincoated filament, e.g. glass, surrounding the shell.
Patent GB-320009-A (GB)
Title: Improvements in devices for mounting and moving spindles supporting thread guides or funnels for spinning boxes of artificial silk threads
IPC: D01H7/04
Filed: 1929-02-05
Abstract: 320,009. Wade, H., (Naamlooze Vennootschap Bouwonderneming, Ketabang IV). Feb. 5, 1929. Thread guides. - Spindles 1 carrying the funnels or guides 13 for the filaments in spinning artificial silk threads into boxes are supported on the traverse rail 2 by means of nuts 9 and are provided with a thickened portion 7 of such cross section that when the spindle is raised manually from the rail 2 and turned through an angle it may be supported on the lower of two stationary bearings 4, 5, whereby the traverse of any guide may be arrested independently of the others. The rail 2 is operated by heart - cam mechanism, and the nuts 9 rest on a sleeve 12 screwed into the rail so that each guide may be independently adjusted relatively to the spinning box while the machine is running.
Patent GB-101507-A (GB)
Title: Improvements in or relating to Needle Scouring and Polishing Machines.
Inventor: WHARRAD LIONEL ALFRED
IPC: B24B31/00
Filed: 1916-03-15
Abstract: 101,507. Wharrad, L. A. March 15, 1916 Agitating articles for polishing by mutual rubbing.-In needle scouring and polishing apparatus of the kind in which a package of needles is treated between a set of rollers, mechanical means are provided whereby one or more of the rollers are positively moved towards the axis of package so as to produce a kneading action therein. In the construction shown in Fig. 1, the package of needles s is treated between the rollers a, b, of which the lower rollers a run in fixed bearings and are driven, and the upper roller b is a floating roller which is depressed intermittently by a cam c loose on the shaft d. In Fig. 2, three sets of such apparatus are shown grouped together, and the shafts d are drawn down by rods e connected through springs f to cross-bars g, which are embraced by a yoke i; the yoke is pivoted to a lever k, which may be depressed by a treadle r and locked by a pawl m and rack n. The lower rollers may be of the construction described in Specification 23585/14. The packages may be introduced into the machine at u in front of an inclined plate t; when the plate is pushed forward, the package u displaces the package s in the first apparatus, and this displaces the package in the next apparatus, and so on. It is stated that the machine may be used for knitting-pins &c. and shafts generally.
Patent GB-826136-A (GB)
Title: Improvements in and relating to screw threads for optical apparatus
IPC: F16B33/02
Filed: 1956-02-07
Abstract: 826,136. Screw threads. VOIGTLANDER A.G. Feb. 7, 1956 [Feb. 8, 1955], No. 3848/56. Class 80 (3). [Also in Group XX] In an optical system in which screw threads are used in assembling or adjusting the optical elements the threads are made self-centring by making those flanks upon which the pressure comes at an angle to the axis of the thread which is less than 60 degrees and providing a space between the other flank and the corresponding flank of the counter-thread. The principle of the device is indicated in Fig. 1 in which a bolt 1 having a thread 2 of which the flanks 8 are inclined to the axis 5 at an angle α less than 60 degrees is screwed into a nut 7. By virtue of the slope of the flanks 8 and the space 3 between the other flanks of the thread and the counterthread in the nut 7, in screwing the bolt the flanks 8 slide on the counter thread to centre the bolt on the axis of the nut. The threads 2 may be symmetrical or saw-toothed (Fig. 2) the angle being about 45 degrees. Fig. 4 shows an objective comprising a member 15 having a focusing thread a pressed by a spring 27 against a counter-thread in a support 14, and carrying lenses 17, 22, 23 held in place by self-centring threads b, c and d.