baber/WOPTO huggingface dataset:
Patent GB-335778-A (GB)
Title: Improvements in or relating to the grinding-in of cocks and valves
IPC: B24B15/08
Filed: 1929-10-30
Abstract: 335,778. Martin, K. F. Oct. 30, 1929. Grinding interfitting parts together. - In grinding-in valves and cocks, the valve or cock plug is oscillated abouts its axis whilst in the seating, the casing of the valve &c. being lifted at each reversal of the rotation of the valve and dropped on to the valve so that during each stroke a relatively high initial grinding pressure, diminishing to a constant pressure is obtained, the extent of the lift being diminished as grinding proceeds, and the extent of the rotation of the valve in each direction also being variable. In the construction shown in Figs. 1 and 3, a shaft driven by a belt pulley 1 drives, through a shaft 2, a cam shaft 3, and carries a crank disc 4 with an adjustable throw crank pin 5. This pin drives, through a connecting-road 6, a rack 7 driving two or more pinions 8 each slidably mounted, so as to be moved out of mesh with the rack, on a spindle 9 to which the valve or the plug of the cock is secured, the body of the valve being prevented from rotating with the valve by a basket 13 secured to the machine table, and adapted to be lifted from the valve by a ring 20 engaged by the forked end of a lever 18 pivoted at 16 to the table. The pivot also carries a lever 17 carrying a screwed spindle 19 engaging the lever 18, and the lever 17 engages a cam 14 on the shaft 3, the lift of the valve casing being adjustable by adjustment of the spindle 19; the lift is reduced as grinding proceeds, final grinding being done without lift, the pressure being due to the weight of the casing. The angle of rotation of the valve may be varied by variation of the throw of the crank pin 5. In a modification, Fig. 6, a gear wheel 26, driven by a pinion 27 carries an adjustable crank pin 29, which, through a connecting-road 31, reciprocates a rack 33 supported in roller bearings and engaging pinions 35 connected by claw or pin clutches to spindles 36 carrying the valves &c. The valve casings are lifted by cams 44, on a shaft 43, which engage and lift rollers 53 adjustable on lifting rods 46 by a screw 49 and a handwheel 48. The rods 46 carry clips 55 adjustable up and down the rods by rack gearing 96, 100, and the clips carry adjustable arms 58 to engage and lift the valve casings. Fig. 11 shows an arrangement for grinding-in the valves 87 of a motor, and in this form the gearing is carried by beams 64, 66, and the spindle 77 is lifted by a cam disc 81 engaging an adjustable roller 84; the valves are carried by Hooke's joints 86 connected by rods 85 to sockets 91 on the spindles 77.
Patent GB-778296-A (GB)
Title: Improvements in or relating to two-stroke crankcase compression engines for use withvelocipedes
IPC: F02B75/02
Filed: 1953-11-27
Abstract: 778,296. Crank-chambers; driving-gear; magneto arrangement. NASSETTI, C. Nov. 27, 1953 [Nov. 29, 1952], No. 32992/53. Classes 7 (2) and 7 (4). [Also in Groups XXVI and XXXV] In a single-cylinder two-stroke crankcase-compression engine including a flywheel and magneto assembly and wherein the crankcase has a lateral wall 43, Fig. 1, a recessed flywheel 32 being fitted on to the crankshaft 21 in the crankcase, the flywheel having its hollow portion adjacent the wall 43 and the magneto being arranged with its permanent magnets 33, Fig. 2, pole pieces 34 and armature lying to one side of the wall and mounted within the flywheel recess, and the contact breaker 38, Fig. 1, and condenser 40 being mounted on the crankcase and disposed on the other side of the wall in a compartment 44, the condenser protrudes into the flywheel recess. The lateral wall 43 separates the crank chamber from the compartment 44 which is closed by a lid whilst the magneto armature, comprising a core 41 and windings 42, is secured to the crankcase. The crankshaft 21 has a friction roller 48 secured thereto for engaging the tyre of a vehicle to be driven. Two permanent magnets 33, Fig. 2, are installed in the hollow space of the flywheel 32 between which magnets are located the pole pieces 34, two of which latter are connected by a yoke 35, thereby forming an asymmetrical balancing mass that lies opposite to the crankpin 27, Fig. 1.
Patent GB-621075-A (GB)
Title: Improvements in or relating to tire dismounting tools
IPC: B60C25/02
Filed: 1946-11-07
Abstract: 621,075. Hydraulic jacks. FIRESTONE TIRE & RUBBER CO. Nov. 7, 1946, No. 33115. Convention date, Nov. 15, 1945. [Class 69 (ii)] [Also in Group XXXIV] A tool for use in dismounting heavy pneumatic tyres from wheel rims comprises claws for engaging the rim-flange at diametricallyopposed points, and a hand-actuated hydraulic jack for separating the claws. As shown in Fig. 1, the preliminary local displacement of the tyre bead is effected by the hooked end of a lever 14 pivoted at 21 to one end of a bar 12 on the other end of which a second rim-engaging claw 13 is adjustably secured by a screw 18. The lever 14 is then replaced by the jack device shown in Figs. 3 and 7. This comprises a pair of relatively-fixed claws 47 and a movable claw 48 carried by the piston 29 of the hydraulic jack 24. As shown in Fig. 7, the latter comprises a detachable head 27 telescoped over a cylindrical casing 26 within which the hollow piston 29 is adapted to slide. Extending from the closed end 33 of the piston to near its opposite end is a tube 37 constituting the fluid chamber. Extending from the closure 28 of the head 27 is a plunger 36 the reciprocations of which force fluid from the chamber 37 past a spring-loaded ball-valve 39 for the working- stroke of the piston 29 and its tyre-engaging claw 48. The return stroke of the piston is effected by screwing the cap 28 of the head 27 on to the threaded nipple 35 of the piston, whereupon the ball 39 is forcibly unseated by a nipple 41 on the end of the plunger 36.
Patent GB-949910-A (GB)
Title: Process for encapsulating materials by diffusion through preformed coacervate walls
IPC: B01J13/08
Filed: 1962-08-29
Abstract: Capsules having water-soluble nuclei of edible or flavouring matter surrounded by walls of jellied gelatin are formed by causing the water-miscible nucleus materials to replace an oily nucleus originally enclosed in the capsule.  The replacement is effected by immersing the capsules, with the walls in a swollen state due to absorbed water, in a liquid exchange vehicle which is miscible with water and a solvent for the liquid nucleus, and then recovering the capsules from the liquid exchange vehicle and extracting the water from the capsule walls in a water absorbing bath to render them impermeable by the new liquid nucleus.  For example d-limonene disposed in an aqueous solution of gelatin and gum arabic can be encapsulated by cooling the system and lowering its pH.  The capsules can then be filtered and immersed in anhydrous ethanol for one hour, after which the super latent liquid is replaced by a solution of 20% terpene-less lemon oil in ethanol.  After five hours the capsules are filtered and washed in warm ethanol saturated with sorbitol.  The capsules may then be dried with starch or by a fluidized bed.  Other examples describe the replacement of corn oil by edible components dissolved in ethanol, and the replacement of acetylated monoglycerides by a solution of vanillin in ethanol. The new nucleus may consist of the water-miscible fraction of flavours expressed from seeds, leaves, fruits &c.
Patent GB-322315-A (GB)
Title: Improvements relating to motor vehicle wind screens
IPC: E05C17/24
Filed: 1928-11-14
Abstract: 322,315. Cox, R. W. Nov. 14, 1928. Windscreens.-A motor vehicle windecreen of the kind which is hinged along its upper edge. is adapted to be swung about either its upper edge or its lower edge, so that either a bottom or a top opening may be obtained. The screen a is hinged at its upper edge to a pair of vertical supports b which are themselves hinged at their lower ends to the body work of the vehicle. By rocking the supports about their lower ends, ventilation may be obtained over the top edge of the screen, and the amount limited by hinged links c. The opening may be protected against rain by a vizor d or the overhang e of the roof. Bottom ventilation is obtained by swinging the screen about its upper edge, Fig. 3, and holding it in the desired position by struts g connected to bolts sliding in the supports b and adapted to be clamped thereto by hand nuts h. To hold the screen more securely at intermediate and nearly closed positions, an arm i is provided having notches on its edge adapted to be engaged by the circular periphery of nuts h. A flat portion on the nut permits of disengagement. To prevent slamming of the screen, springs k are provided in each support b and serve as cushions for the parts f. Finger rings are provided at l.
Patent GB-949489-A (GB)
Title: Photographic camera
Inventor: KROMER KARL
IPC: G03B7/00
Filed: 1961-09-19
Abstract: 949,489. Photographic cameras; focusing lens mounts. KAMERA - UNDKINOWERKE DRESDEN VEB. Sept. 19, 1961, No. 33497/61. Headings G2A and G2J. A photographic camera comprises an objective lens assembly axially slidable within the camera, a stop member arranged to be fixed within the camera for limiting the axial movement of said lens assembly in one direction, means for preventing rotational movement of said lens assembly, a threaded portion provided on said lens assembly, a threaded sleeve in engagement with said threaded portion, a distance setting ring coupled with said sleeve 4 and with an exposure factor setting means in the camera, and resilient means provided between a fixed position in the camera and said sleeve for urging the latter towards a further fixed position in the camera, whereby when the lens assembly is limited in said one direction, after rotation of the distance setting ring, the continued rotation of said setting ring is possible. As shown, a lens carrier 2 guided for longitudinal movement only in a mount 1 by a pin and slot coupling 4, 5 is coupled to a focusing ring 7 by way of a sleeve 6 which is screw-threadedly mounted on the carrier 2 and has a pin and slot connection with the ring 7 at 8, 28. One end of the focusing range of carrier 2 is defined by abutment surfaces 25, 27 of the carrier and mount respectively. However, these surfaces do not also define a corresponding limit for the ring 7 since, even after the carrier 2 has reached the end of its adjustment range, further rotation of the ring 7 can be accommodated by axial movement of the sleeve 6 against loading of a spring 9 which normally urges this sleeve into an abutment with a collar of the mount 1. In the embodiment shown, the focusing ring 7 is coupled through an arm 15 with an exposure time setting ring 14 and bears a scale of subject symbols 24a for use in setting the ring 7. The ring 7 may alternatively be coupled to a diaphragm setting ring. The camera makes provision for taking flash photographs in that a contact spring 18 is successively brought into engagement with two contacts 19 and 20 (corresponding to different time delays) during operation of the shutter by a driving arm 16 thereof. By means of a switching device comprising contacts 21 and a lever 23 which co-operates with a cam 26 on the time setting ring 14, the contact 19 is automatically connected to or disconnected from a flash nipple 22 according to whether a shorter or longer delay is necessary for a given time setting. A scale of symbols 24b is provided on the ring 7 for indicating which of the two flash settings is operative.
Patent GB-373072-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L5/32
Filed: 1931-12-04
Abstract: 373,072. Vacuum cleaners. HOOVER, Ltd., 229, Regent Street, London.-(Hoover Co. ; North Canton, Ohio, U.S.A.) Dec. 4, 1931, No. 33580. [Class 8 (i).] A vacuum cleaner comprises, in addition to a floor nozzle 1, a curtain &c. cleaning tool 12 and hose 9 in permanent connection with the fan chamber and accommodated in the handle 7 while floor cleaning is in progress; the handle may be of U form in general outline, and of channel section. The hose and tool are connected by spring clips to the ends of a rigid tube 11 ; the hose is connected at its other end to' the tubular lower end of the handle which carries a sleeve rotatable on a conduit 16 leading to the fan chamber. A valve 19, Fig. 5, allows either the floor nozzle or the curtain tool to be cut off from the fan. The top of the dust bag 6 is reinforced by a cross member 24 carrying spring-pressed pins 25 adapted to engage bores in blocks sliding within channel members mounted on the handle ; the blocks are raised by spring pressure, tensioning the bag.
Patent GB-1474201-A (GB)
Title: Fluid bearing for tape guide
IPC: G11B15/64
Filed: 1974-07-30
Abstract: 1474201 Guiding record tapes AMPEX CORP 30 July 1974 [3 Aug 1973] 33596/74 Heading G5R The surface of a tape guide of the air bearing type, e.g. a cylindrical guide drum in a helicalscan video recorder, has parallel grooves 21 communicating from the air bearing zone to the air entrance and exit zones thereof, the grooves 21 being aligned substantially in the direction of tape movement and less than 200 microinches deep.
Patent GB-883077-A (GB)
Title: Hydraulic driving mechanism for vehicles
Inventor: SKINNER ROBERT THOMAS JOHN
IPC: F16H61/46
Filed: 1959-10-05
Abstract: 883,077. Hydraulic transmission of power. LUCAS (INDUSTRIES) Ltd., JOSEPH. Sept. 15, 1960 [Oct. 5, 1959], No. 33633/59. Class 69 (2). [Also in Group XXXI] A vehicle hydraulic driving mechanism comprises a plurality of pumps, each connected to an associated motor or motors for driving the wheels of the vehicle, the hydraulic circuits of the pumps being connected by balance pipes which incorporate means for limiting the flow of liquid should one wheel start spinning. Such means may be a restricting orifice or a spring- loaded valve. As shown, an engine 3 drives pumps 1 and 2 which operate motors 4 and 6 for driving wheels 5 and 7. The delivery lines are connected by a balance line 9 and the return lines by a balance line 8, in each of which is a spring-loaded ball valve 10 in which a ball 11 is centred by springs 12 and is moved in one direction or the other to cut-off the flow of liquid should the flow in that direction become too great.
Patent GB-971389-A (GB)
Title: Improvements in or relating to blowers
IPC: F04D29/44
Filed: 1962-09-03
Abstract: 971,389. Centrifugal blowers; axial-flow fans. GREENAWALT SINTERING CO. Inc. Sept. 3, 1962 [Sept. 5, 1961], No. 33681/62. Heading F1C. In a centrifugal blower comprising spiral diffuser blades disposed around the impeller, each diffuser blade has a land extending a substantial distance circumferentially from its innermost cut-off edge and having a constant clearance from the impeller blade tips, the lands being of sufficient length in relation to the distance between the tips of adjacent impeller blades and the said clearance being sufficiently small to halt briefly the outward flow of gases so that the gases receive the full velocity of the impeller blade tips before entering the diffuser. The blower shown in Figs. 1 and 2 comprises a casing 12 split vertically along flanges 27 and horizontally along flanges 28 and having a bottom inlet passage 22 in register with an opening through the foundation 10 on which the casing rests. The inlet passage 22 is connected by a pair of passages 34 to circular entrance chambers 38 disposed on either side of a double-inlet impeller 13. The casing 12 comprises a volute 36 of generally rectangular cross-section. A diffuser 35, made in two halves joined at flanges 41, has annular flanges 44 which rest on seats 46 of the volute 36. Annular flanges 37 of the volute 36 co-operate with the diffuser 35 to form a chamber for the impeller 13. The diffuser 35 comprises diffuser passages 42 formed between diffuser blades 40, the inner end of each blade being formed with a surface 43 which is concentric with the impeller 13 and has a small clearance therewith. Each surface 43 forms an extended cut-off having a circumferential length which is between 15% and 50% of the distance between the cut-off points 45 of successive diffuser blades 40 and is preferably equal to the circumferential distance between successive impeller blades 50. A removable baffle 33 separates the smaller end of the volute 36 from the discharge 23. It is stated that during the time each impeller blade 50 passes over a cut-off surface 43, the discharge flow from the impeller is partially blocked so that the centrifugal force applied by the impeller produces localized compression which increases the static delivery pressure or the suction of the blower and improves efficiency. Bearings 16, 17 are cooled by fan discs 20, 21 carried on the impeller shaft and preferably made of copper or other good heat conductor. Each fan disc is split at 53, Figs. 4 and 5, and comprises blades 55 and openings 56.
Patent GB-800042-A (GB)
Title: Improvements in or relating to motor scooters
IPC: B60K11/06
Filed: 1955-11-24
Abstract: 800,042. Cooling motors; motor - scooter bonnets. SCHREITL, F., SCHUSTER, H., HINTERBERGER, F., FUCHS, A., FUCHS, K., and MAYER, A. Nov. 24, 1955 [Feb. 22, 1955], No. 33683/55. Class 79(3) A motor scooter has a bonnet 6 carrying a duct 8 which has its outlet end 8a leading outside the bonnet and its inlet end 8b opposed to, and spaced from, the outlet of a cooling air guide casing 4 surrounding the engine 3 and leading from a blower 2. There is a gap 7 between the duct 8 and the casing 4. Air is drawn by venturi action through the gap 7 from the space between the casing 4 and the bonnet 6. The duct 8 is rigid with a detachable side panel 5a of the bonnet 6.
Patent GB-871378-A (GB)
Title: Fluid pressure device for controlling a process or an apparatus
IPC: F16K31/128
Filed: 1957-10-29
Abstract: 871,378. Fluid-pressure servomotor control systems; valves. LEUNA-WERKE WALTER ULBRICHT VEB. Oct. 29, 1957 [Aug. 8, 1957], No. 33715/57. Class 135. A fluid-pressure device for controlling a process or an apparatus comprises a nuid-pressure relay having a first pressure sensitive member or diaphragm 2 displaceable, on changes of the pressure acting thereon, to move a baffle 3 towards or away from an outlet nozzle 5 mounted on a tube 4a, said tube including a second pressure-sensitive member or integral bellows 4 which acts, on changes of pressure in the tube resulting from restriction of the nozzle by the baffle, to extend or contract the tube longitudinally and so cause the nozzle to move towards or away from the baffle, which changes of pressure in the tube serve also to actuate a regulator of the process or apparatus. In a system, Fig. 1, the changes of pressure in the tube 4 are used to actuate a diaphragm regulating valve 7 for filling or emptying liquid containers, the first pressure-sensitive member 2 being subject to a control pressure set up by changes of liquid level in a container 10. Constant air pressure is fed to restrictions 9 and 12 which are connected respectively to the tube 4a and the diaphragm 1, the restriction 12 also being connected to a bubble pipe 11 dipping into the container 10. On rising level in this container, the increased pressure on diaphragm 1 moves the baffle 3 towards the nozzle 5 and a correspondingly increased pressure in the tube 4a closes the regulating valve 7. Movement of the nozzle 5 is limited by stops 6, 6a and on falling level in the container 10 the nozzle follows the reverse movement of the baffle until limited by the stop 6. Fig. 2 shows a system in which a similar process regulating valve 7 is actuated in a timed cycle by an arrangement similar to that of Fig. 1, excepting that the container 10 is replaced by a closed pressure container 13, and the pressure-sensitive diaphragm chamber 1 is connected also through an additional restrictor 15 to a diaphragm-actuated leak-off valve 16 which is spring-closed and opened by pressure in a diaphragm chamber connected to the tube 4a. Timing of the operating cycle is determined by the relative sizes of the restrictions 14 (which corresponds to restrictor 12 of Fig. 1) and 15 in relation to the build-up of pressure in the container. Thus on a predetermined higher pressure being built up in the container the nozzle is closed by the baffle 3, thus actuating the regulating valve 7 and allowing the leak-off valve 16 to open. This leak-off valve exhausts the container 13 through orifice 15 quicker than the container can be supplied through orifice 14 so that on a predetermined low pressure in the container being reached after a given time interval, the nozzle is again opened, thus relieving the actuating pressure on the regulating valve and on the leak-off valve 16 which closes to recommence the cycle.
Patent GB-1045589-A (GB)
Title: Improvements in or relating to refrigerator cabinets
IPC: F25D23/06
Filed: 1963-08-26
Abstract: 1,045,589. Refrigerators. SIEMENS-ELECTROGER€TE A.G. Aug. 26, 1963 [Aug. 30, 1962], No. 33773/63. Heading F4H. In a refrigerator having a work-top which is separate from the side walls of the cabinet, the work - top is secured directly to an upper foamed plastics insulation layer during the foaming process. As shown, the work-top 16 is secured directly to insulation 19 and has side-walls 27 secured thereto, the walls 27 having flanged projections 29 which are embedded in the insulation during the foaming process. The projections may. be barbed rather than flanged (Fig. 5, not shown). In the modification of Fig. 6 (not shown), the insulation 19 is extended forwardly over the door 35 and the side-wall 36 is formed with a groove 37 for receiving the upwardly bent edge 38 of a seal 39. Reinforcing strips 40 are provided in the insulation. In the embodiments of Figs. 7 to 10 (not shown), the side walls are integral with the work-top and sealing means are provided between the work-top and the side-walls of the cabinet. The work-top preferably consists of a carrier layer of chip-board, press-board or sheet metal with an outer covering layer of melamine.
Patent GB-1493389-A (GB)
Title: Umbrella covers and umbrellas
IPC: A45B25/18
Filed: 1975-05-23
Abstract: 1493389 Umbrella covers A FULTON 23 May 1975 [31 July 1974] 33788/74 Heading A4P An umbrella cover is made in a single piece from knitted fabric and has a dished shape in its unstretched condition before assembly over an umbrella frame. Preferably the fabric is of synthetic resin treated to be waterproof. The cover may be circular or polygonal e.g. octagonal in plan view.