baber/WOPTO huggingface dataset:
Patent GB-1217646-A (GB)
Title: Improvements in or relating to semi-trailers
Inventor: HILDEBRANDT WILLI
IPC: B62D13/02
Filed: 1969-06-13
Abstract: 1,217,646. Steering semi-trailers. W. HILDEBRANDT, and A. T. VAN HUET. 13 June, 1969 [14 June, 1968], No. 30221/69. Heading B7H. A single axle semi-trailer 3 has a steering arrangement comprising a device 10 which is rotatable about a vertical axis by a control member 12 which is connectible to a coupling 14 of a tractor 1 and has means 13, 15 to compensate for changes of distance between the device 10 and the coupling 14 during steering movements, and transmission means 8 between the device 10 and a rotatable mounting 5 of the axle 4 whereby rotation of the device 10 steers the axle, steering deflection being limited by restricting the operation of the means 13, 15. The device 10 and axle 4 are rotatable on ball or roller bearing rings interconnected by a parallel linkage 8. The distance compensation is achieved by a rod 13 connected to the coupling 14 and telescopically slidable in a sleeve 15 secured to the control member 12, and is restricted by a stop 13<SP>1</SP> on the rod.
Patent GB-1009993-A (GB)
Title: Devices for periodically cleansing pocket filter surfaces in dust-arrester installations
IPC: B01D46/04
Filed: 1962-08-08
Abstract: 1,009,993. Air filters. H. LUHR. Aug. 8, 1962, No. 30374/62. Heading BIT. Reverse flow cleaning of a plurality of inward flow generally flat rectangular filter pockets a, Fig. 5, each secured at its narrow vertical open end to the near wall 5 of the filter casing which is provided with upper and lower slots 6, 7, Fig. 4, in register with the upper and lower portions of the pocket mouth is effected sequentially by a blower 10 discharging into a duct 9 extending across the row of upper slots 6 and containing an endless driven impermeable belt 15 having a vertical slot 16 in each run thereby allowing access of pressure air to the interior of the pocket with which the slot 16 is in register ; the lower slot 7 of the pocket a being cleaned being blanked off by a mask 19, Fig. 6, carried by an endless chain 18 driven at the same speed as belt 15 and enclosed by a duct 11 connected to a suction fan 12 which draws dust-laden air through an inlet 2 of the casing. The belt drums 14 and chain sprockets 17 are mounted on common spindles 13. In a modification the flow of cleaning air from blower 10, Fig. 7, is interrupted by a rotary valve 24 which in one position connects blower 10 to the duct 9 and slot 6 and in its other position connects  the suction fan 12 to the duct 9 and slot 6. The blower 10 may be dispensed with and the duct 9 open to ambient atmosphere.
Patent GB-753117-A (GB)
Title: Improved combined clutch and expanding pulley
IPC: F16H61/662
Filed: 1954-10-21
Abstract: 753,117. Variable-speed gearing. ATELIERS DE LA MOTOBECANE. Oct. 21, 1954 [June 18, 1954], No. 30376/54. Class 80(2) A centrifugally-engaging clutch and a centrifugally-expanding V-belt pulley 3, 4 are arranged side by side on the shaft 2 of an autocycle engine 1, centrifugal balls 11 acting between the flange 3 and an axiallyfixed abutment plate 10 while centrifugal balls 13 act between the flange 4 and the side wall 14 of the inner member 15 of the centrifugal clutch. The member 15 has a hub 16 mounted on a shorter collar 17 so as to provide space for the axial movement of the bearing sleeves 6, 7 of the flanges 3, 4.
Patent GB-1489296-A (GB)
Title: Fluid valves
IPC: F16K15/16
Filed: 1975-07-22
Abstract: 1489296 Valves LENINGRAD N-I I KONSTRUKTOR INST KHIMICHE MASHINOSTROENIA 22 July 1975 30514/75 Heading F2V In a non-return valve for a compressor a ported polygonal sleeve 2 is fitted in a hole in a plate 1. Ports 5 are provided in each of the flat sides of the sleeve and these are controlled by flaps 7 attached to the outside of the sleeve by a ring 8. The flaps taper in width to a specified degree towards the anchored end and may also taper in thickness to a specified degree in this direction. A hole (10), Fig. 2 (not shown), may be provided in the narrower part of the flap. The hole in the plate 1 may be made pyramidal in shape in the region of the ports to provide a limit stop for the flaps. In an alternative embodiment, Fig. 4 (not shown), the sleeves are formed integrally with the plate 1. In a yet further embodiment, Fig. 5 (not shown), the flaps are held in place by means of a flexible bushing inserted between the sleeve and the surface of the hole. The bushing provides a limit stop for the flaps.
Patent GB-606331-A (GB)
Title: Improvements in or relating to injection moulding apparatus
IPC: B29C45/20
Filed: 1945-02-08
Abstract: 606,331. Injection-moulding apparatus. BRITISH RESIN PRODUCTS, Ltd., and DAVIES, D. N. Feb. 8, 1945, No. 30544/47. Divided out of 606,259. [Class 87 (ii)] Liquid resin contained in a cup a enters a cylinder c through holes d in the latter, and is forced by a plunger e past a spring- pressed ball valve j through a nozzle f into a mould k<1>. The nozzle is cooled by water circulating in a channel g therein. Small ports m in the cylinder relieve suction on ascent of the plunger. The plunger is reciprocated by a lever or a crank. The mould is heated. Specification 583,236, [Group IV], is referred to.
Patent GB-1263178-A (GB)
Title: Vibratory compression moulding installation for manufacturing large moulded carbon articles
IPC: B30B11/02
Filed: 1969-07-11
Abstract: 1,263,178. Compression moulding. KLOCKNER-HUMBOLDT-DEUTZ A.G. 11 July; 1969 [12 July, 1968], No. 35081/69. Heading B5A. A vibratory compression moulding installation, e.g. for the production of carbon electrodes, comprises a rotary table which carries a number of moulds through material feeding, compression and article removal stations, and has pairs of arms 2 extending from a rotary hub, not shown, each pair loosely supporting a mould 8. At the compression station, weights 19, Fig. 2 (not shown), corresponding in number to the number of moulding compartments in each mould, are lowered therein, and the mould is raised from its supporting arms by a vibratory table 14 mounted on springs 13 on a base-plate 15 which is raised by hydraulic cylinders 16 and guided by members 19. The mould and its separable bottom plate 11 are then locked to the table 14 by the upper ends 24 of hydraulic cylinders 21 which engage hooks 25 on the mould. At the article removal station the mould is raised from its bottom plate 11 by hydraulic lifting means, leaving the articles to be removed by further means.
Patent GB-1395358-A (GB)
Title: Optical brightening of plastics sheets and films
IPC: C08J7/04
Filed: 1972-06-30
Abstract: 1395358 Optical brighteners in laminates HOECHST AG 30 June 1972 [3 July 1971] 30739/72 Heading B5N [Also in Division B2] A plastics sheet or film containing TiO 2  pigment is coated with a transparent layer containing a dissolved optical brightener. The brightener may be a compound of the formula where R 1  and R 2  are the same or different and may be a carboxy or alkoxycarbonyl group or, preferably, hydrogen. The transparent layer may comprise another plastics film or sheet. In an example, TiO 2  pigmented plasticized p.v.c. was used as substrate, with an unpigmented film containing the optical brightener 1,4 - bis - (benzoxazol - 2 - yl) - naphthalene being laminated on to the substrate sheet.
Patent GB-266821-A (GB)
Title: Improvements in or relating to artificial silk spinning or like machines
IPC: B04B9/12
Filed: 1925-12-05
Abstract: 266,821. Rushton, J. L., and Hill, H. Dec. 5, 1925. Spindle apparatus; spindle-driving apparatus. -Relates to artificial silk spinning or like machines which comprise a casing, which carries driven members, for example the driving gear of a centrifugal spinning box, and is detachably and independently hung as a single unit on a stationary support, the driven members being operated from the outside of the casing through a readily disconnectible coupling, such as described in Specification 263,230. Undesired tilting or other movement of the casing is prevented by providing the supporting bracket 11 with cheeks 13 which embrace the casing 15, and by supporting the casing by means of ears 20 which rest on lugs 22 on the cheeks, pins 24 engaging with recesses in the ears and lugs and being secured to one, as shown, or to both by screws 26. The casing is further steadied by a lug 28 which bears against a machined lug on an extension 14 of the bracket 11. The casing of the driving-mechanism for operating the shaft 17 of the driven members is shown by chain lines 18.
Patent GB-778185-A (GB)
Title: Improvements in and relating to winged aerial targets
Inventor: BAYNES LESLIE EVERETT
IPC: G09F21/12
Filed: 1952-12-04
Abstract: 778,185. Towed aerial targets. BAYNES AIRCRAFT INTERIORS, Ltd. Dec. 3, 1953 [Dec. 4, 1952], No. 30826/62. Class 4. A towed aerial target comprises a fuselage, a pair of swept back main wings near the rear of fuselage, a pair of swept back secondary wings or stabilizers near the front end of the fuselage, and control units hinged to the stabilizers and providing control surfaces, being biased in one direction and movable in flight about the hinges against their bias to provide an automatic and progressive change in life on the forward stabilizers as speed increases. As shown, each of the forward stabilizers 14 is provided with a control unit 18 pivoted on a rod 26, 37 and has pivoted to it at the trailing edge of its under surface a servo-tab 33. A lug 36 on the tab is pivoted to a link 34 in turn pivoted to the stabilizer on a lug 35. The two rods 26, 37 mounting the control units are universally pivoted at 38, 39 to a rod 40 journalled in the aircraft, a lever 43 fast thereto being pivoted to a link 44 spring biased by spring 47 to bias the control units in the down position, in which tab 33 forms a smooth continuation of the control unit surfaces. The tabs are of such area that as airspeed is increased, the tab and control surface move against the spring bias to the position shown in Fig. 3, reducing the lift. A plate 30 fast with the control unit structure is provided with holes 29, and a lug 28 fast to the rod 26 is provided with a hole 27 which may be keyed to any hole 29 to preset the control units. The two units may be preset differently, and a dihedral provided on the stabilizers, to give a yawing moment for off-set towing. Rudders provided on the rear main wings may also be preset to assist off-set towing. Specification 778,184 is referred to.
Patent GB-634261-A (GB)
Title: Improvements in or relating to machines for twisting electric conductors for use in electric cables
IPC: H01B13/02
Filed: 1947-11-21
Abstract: 634,261. Machines for making cables. STANDARD TELEPHONES & CABLES, Ltd., PHEAZEY, J. R., and DEACON, H. J. Nov. 21, 1947, No. 30931. [Class 109] [Also in Group XXXVI] A machine for twisting two pairs of electric conductors for making two separate cables and which can be used for twisting four conductors to make a single cable comprises a flier 1 rotating about a stationary axle 7 which supports four rotatable reels 21 . . . 24. Wires 31, 32 are led off from two of the reels and passed over guide pegs 27, 28 and through a slot 33 in the axle 7 and a bore 34 in the trunnion 9. The two wires are then taken over pulleys 35, 36, 37, 38 rotatably mounted on the flier rotation of which twists the wires into a single pair 39 which is led out through a bore 40 to a take-up reel. Wires 42, 43 are simultaneously drawn from the remaining reels and passed over pegs 29, 30, through a slot 44 in the axle 7 and a bore 45 in trunnion 8. From this point the wires pass over pulleys 46, 47, 48, 49 and are led out at the end 50 of the machine. By replacing the single wires on the reels by pairs multiple twin quads may be made. To make a single spiral quad all four wires are drawn in the same direction from the reels, two additional pegs being provided on the member 25 for the wires drawn from the reels 22, 23. The four wires are drawn through a lay plate on the trunnion 9 and are passed over all the pulleys on the flier and out at the end 50 of the machine. To keep the axle stationary as the flier rotates the axle is pivoted in trunnions 8, 9 in blocks 10, 11 fixed to the flier. A shaft 12 is mounted in block 10 and a block 13 also fixed to the flier, the shaft carrying pulleys 14, 15 at its ends. Two other pulleys 16, 17 are carried by the upright 3 and axle 7 respectively. Belts 18, 19 pass round the pulleys as shown. Instead of this arrangement a planetary gearing may be used.
Patent GB-657142-A (GB)
Title: Improvements in toroidal transformers for intermittent operation
IPC: H01F30/16
Filed: 1948-11-30
Abstract: 657,142. Transformers. SOC. ANON. A. CITROEN. Nov. 30, 1948, No. 31019. Convention date, Dec. 9, 1947. [Class 38 (ii)] A transformer for intermittent operation and which utilizes a small magnetic core by providing effective cooling is toroidal in form and comprises a stack of annular laminations 1 clamped by a tube 3 of non-magnetic but conducting material swaged over the stack and closed by a ring 4 of non-conducting material to form a chamber 2 through which is passed a coolant, e.g. water by way of the orifices 5. The primary winding 13 passes through the core and down the outer surface of the chamber 2 whilst the low voltage secondary winding comprises two turns, one of which is constituted by a tube 6 extending through the core and terminating at the lower end at an output terminal whilst the other turn is constituted by the conducting clamping member 3 which is connected to the tubular rod by means of a plurality of angularly spaced flexible leads 11 soldered or brazed at 10 to the lower portion of member 3 and at the other end to a conducting hood 7 clamped to the tube 6. A further plurality of angularly spaced flexible leads 9 are connected between the upper part of the clamping member 3 at 8 and the other output terminal. Coolant is passed through the tube 6. An alternative core clamp which also forms a cooling chamber (Fig. 2, not shown), comprises a strip of U-shaped material bent circular so as to clamp the laminations between the inwardly extending legs of the strip. The shroud 7 may extend around the transformer to form a casing.
Patent GB-823268-A (GB)
Title: Lawn sprinkler
IPC: B05B3/16
Filed: 1956-10-11
Abstract: 823,268. Spray-producers. SUNBEAM CORPORATION. Oct. 11, 1956 [April 3, 1956], No. 31044/56. Class 69 (3). A lawn sprinkler comprises a spray tube 23 with nozzles 23a extending between a support 13b on a base 13 and a housing 14 fed with water through a hose connector 18, and the flow of water through the housing to one end of the spray tube drives a motor in the housing which oscillates the tube about its horizontal axis. The housing is bolted to the base with the interposition of a gasket 27, and consists of two sealed chambers 15 and 16. Chamber 15 and a passageway 22 extend between the connector 18 and the inlet end of the spray tube, and a bladed impeller wheel 21 is driven by the flow of water from a nozzle 20. A drive shaft 24, to which the impeller is secured, is mounted in bearings in the opposed walls of the chamber 16 and drives, through reduction gearing 24b, 31, 30a and 32 in the chamber, a crankshaft 33. A crankshaft arm 33a extends outside the housing and a link 47 connects this arm with a sector 52 integral with one end of the spray tube. A cut-out 52c in the sector provides means for varying the relative rotational positions of the crank-arm and spray tube and hence the position of the area sprayed relative to the sprinkler. The end of the link 47 is secured by a bolt and wing nut in the desired position in the cut-out. In order to prevent water leakage along the shaft 14 to the chamber 16 a gasket 26 is provided together with a passageway 14c, 14d formed in the wall of the chamber to lead away past a screw 28 any water leaking from the chamber 15. The spray tube is formed from a sheet of stainless steel in which a line of outlets is formed by an extension die, and the plate is then rolled to shape and its abutting edges welded together.
Patent GB-878376-A (GB)
Title: Improvements in or relating to the formation of screw threads
IPC: B21H3/04
Filed: 1959-09-11
Abstract: 878,376. Rolling screw threads. WAGNER, E., and WAGNER, F., [trading as WAGNER MASCHINENFABRIK, G.]. Sept. 11, 1959 [Sept. 12, 1958], No. 31078/59. Class 83 (4). In thread-forming rolls for use in sets in thread rolling heads which operate in a continuous manner and in which the thread rollers are disposed uniformly in a circle and at an angle corresponding to the desired pitch of thread in the stock, each roll has separate annular profiles which are reduced in height at the ends of the roll and which in the axial direction of the stock are disposed so as to be offset progressively from roll to roll by a fraction of the desired thread pitch in the stock corresponding to the number of rolls in the set, the annular profile of each thread roll being symmetrical at the two ends of the roll so that each roll can be inserted in the set with either end of the roll at the front and discs being provided for adjusting the required mutual axial position of the rolls. A thread-rolling roller 1, Fig. 1, has a number of separate annular profiles with a pitch t the first and last of such profiles being reduced in height to the same extent and arranged equidistant from the ends of the roll so that the latter is reversible end for end. Three or more rolls may be used in a thread rolling head, the profiles being inclined at an angle to the work axis equal to the helix angle of the thread and corresponding profiles being offset from roll to roll by a fraction of the pitch equal to the reciprocal of the number of rolls so that corresponding profiles run successively in the helical groove on the work. To locate the roll for correct offset relation of the profiles a 2t disc 4 of width - is used for the first and last 3 rolls of a three-roll set while the centre roll is 2t either longer than the others by - or is pro- 3 vided with two discs, one at each end, each t being of width -. The initial profile increases 3 in height from roll to roll in order of action on the work. In a modification more than one profile at the end of a roll may be reduced in height.
Patent GB-1351226-A (GB)
Title: Re-winding device for the paper for teleprinter machines and printing machines in general
IPC: H04L13/06
Filed: 1971-07-02
Abstract: 1351226 Automatic control of tension ING C OLIVETTI & C Spa 2 July 1971 [3 July 1970] 31144/71 Heading G3R Paper web 15 emerging from a teleprinter is wound on a roller 8 driven by an electric motor switched on and off by a snap action device according to the length of web between the roller and the point of emergence from the machine. From a supply roll 7 the paper passes under a platen 3, over cross-members 114, round a dancer bar 19 and a fixed bar 17 to the take-up roller 8. The dancer bar 19 is carried by a pivoted lever 20 which co-operates with a cam 23 and other linkages to operate a micro-switch 55 in the motor circuit. The motor is turned off when the bar is at a high point in its travel Fig.3 (not shown) and on at a lower point Fig.4 (not shown). If the bar reaches a further lower point due to web breakage a second micro-switch 34 is actuated to give a warning. This switch is also operated when the supply reel approaches exhaustion, as detected by a roller 83 on a pivoted arm 82. The motor drives through gearing and a clutch Fig.6 (not shown) which may be manually disengaged to release the take up roller, enabling it to be swung back about a pivot 14 for loading and unloading. A lockable cover may be provided for security of the information on the paper web.
Patent GB-714565-A (GB)
Title: Photographic objective
IPC: G02B9/12
Filed: 1952-12-09
Abstract: 714,565. Optical objectives. AGFA CAMERA WERK AKT.-GES. Dec. 9, 1952 [Dec. 22, 1951], No. 31180/51. Class 97(1) In a corrected objective of the type comprising a simple biconcave divergent element behind a simple convergent element and before a compound convergent component consisting of a divergent element cemented to a. convergent element the cemented surface being convergent and convex towards the front, the radius of curvature of the front surface of the objective is greater than .3F (F=focal length of objective), the sum of the radii of curvature of the front and rear surfaces is less by at least 155F than the sum of the radii of curvature of the two surfaces of the central divergent element, the mean refractive index of this element being greater than that of the divergent element of the rear component but not exceeding 1.63, while the refractive indices of the front convergent element and of the convergent, element of the rear component and each greater than 1.635 and the difference between the refractive indices of the two single-elements is at least 0.03. Data are given for three examples of the objective shown.
Patent GB-934812-A (GB)
Title: Freerunning multivibrator circuit
IPC: H03K3/08
Filed: 1959-09-14
Abstract: 934,812. Valve pulse generating circuits. MUSZERIPARI KUTATO INTEZET. Sept. 14, 1959 [Sept. 13, 1958], No. 31247/59. Drawings to Specification. Class 40 (6). A multivibrator in which the reciprocal coupling elements do not form part of the cathode circuits of the valves, is characterized in that the cathodes are connected by a resistive T or TT network. One or more of the resistive elements may be variable.
Patent GB-1049764-A (GB)
Title: Plug valve for fluid flow control
IPC: F16K11/065
Filed: 1963-08-08
Abstract: 1,049,764. Plug valves. TEXSTEAM CORPORATION. Aug. 8, 1963 [Nov. 6, 1962], No. 31295/63. Heading F2V. A plug valve comprises an inlet port 12, Fig. 1, not shown, and at least two outlet ports 13 and 14, a plug 15 rotatable within the body 10 and having a passageway 16 with an inlet opening 17 and outlet openings 18 and 19, a stem 24 rotatably carried in the body 10 and in coupling engagement with the plug 15, the stem being arranged to support the plug against longitudinal movement by a thrust bearing 29 co-operating with a collar 31. An equalizer ring 36 is disposed between the stem 24 and plug 15 and has a slot in each face arranged perpendicularly to each other which co-operate with lugs 39 and 40 on the plug 15 and stem 24, respectively. A nut 43 is fixed to the stem 24 so that the plug 15 can be rotated by a hand wrench and an indicator plate 45 coacts with a pin 46 on the body 10. Valve seats 20 and 21, together with a guide seat 22, all preferably made of a resilient material, provide bearing surfaces for the plug 15. A plug support washer 41 is provided at the end opposite the stem 24. The plug 15 may be rotated by a mechanical actuator.
Patent GB-985330-A (GB)
Title: Improvements in or relating to stroboscopes
Inventor: APLIN FREDERICK EDWIN
IPC: G11B15/54
Filed: 1962-08-15
Abstract: 985, 330. Stroboscopes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Nov.15, 1963 [Aug. 15, 1962], No. 31313/62. Heading G1K. A stroboscope for checking the tape speed of a tape recorder comprises a drive pulley 4 adapted to be rotated by engagement of a portion of its periphery with the tape, and a stroboscopic disc 15 secured to a driven pulley 9 and resilient spring means 11, 14 for urging the two pulleys into frictional driving engagement. A window 17 is provided in the casing 2 for viewing the stroboscopic disc. The disc may carry concentric bands of striations suitably proportioned to indicate different speeds.