baber/WOPTO huggingface dataset:
Patent GB-1183285-A (GB)
Title: Improved Pneumatic Feed Leg
IPC: E21B19/087
Filed: 1968-04-30
Abstract: 1,183,285. Rock drills. CHICAGO PNEUMATIC TOOL CO. 30 April, 1968 [16 June, 1967], No. 20444/68. Heading B3C. [Also in Divisions B4 and B8] A pneumatically actuated feed leg detachably connectible to a rock drill comprises a plastics cylinder 13 having a closure head 22 at its upper end, a piston 15 reciprocable in the cylinder, a plastics piston-rod 14, a bushing 29, a pronged foot 19 mounted on the piston-rod, and a control valve 45 fitted in a portion of the closure head extending outside the cylinder for controlling flow of air to the cylinder. With the valve in the position shown, air from the drill is fed to the space 48 above the piston 15, whilst the space 37 below the piston is connected to atmosphere via passages 49, aperture 51, tube 42 and the valve. Clamping nuts 25, 34 are also of plastics. The piston is held in its retracted position by frictional engagement of an O-ring 56 carried in an extension 55 with the inner surface of a skirt 23 of the closure head. The cylinder, piston-rod, and clamping nuts may be made from fibreglass reinforced epoxy tubing impregnated or coated with molybdenum disulfide dispersed in an epoxy matrix. The piston and bushing are of metal.
Patent GB-151143-A (GB)
Title: A new or improved process for retting flax
IPC: D01C1/04
Filed: 1919-08-20
Abstract: 151,143. Johnson, L. A. Aug. 20, 1919. Retting. - In obtaining fibres from flax, the straw, prior to retting, is treated in one stage, or in a number of stages extending over successively increasing periods of time, with an alkaline solvent to remove the whole or a greater portion of the gum and resin compounds, and the retting operation is carried out in an alkaline medium. A natural soda, such as Magadi soda, occurring in East Africa, may be used, and in the retting operation, which is preferably effected at 80‹- 95‹ F., the liquid is continuously aerated and circulated.
Patent GB-747545-A (GB)
Title: Improvements in device for gaging threads, grooves and the like
IPC: G01B3/40
Filed: 1954-07-14
Abstract: 747,545. Gauges. STANDARD GAGE CO., Inc. July 14, 1954 [April 7, 1954], No. 20569/54. Class 106 (2). A gauge adaptable to measure the diameters of both external and internal screw-threads comprises a relatively stationary frame member 10, Fig. 1, having a slot 12 between upper and lower portions 16, 15 respectively and a movable U-shaped member 17 mounted for reciprocal movement relative to the frame 10 by means of two guide-rods 13, 14 supported in the portions 15, 16 and passing through bores 18, 20 in the limbs of the movable member 17. The member 17 is provided with two anvils 21, 22 which co-operate with the plunger 23 of a dial gauge 24 which can be mounted on the frame 10 either, as shown, to co-operate with the lower anvil 22 or can be reversed in position to cooperate with the upper anvil 21. Threadgauging elements 34, 37 (as shown, for measuring internalthreads) are mounted on bases sliding in T-shaped slots 33, 38 in the movable member 17 and the portion 15 of the stationary frame 10. A threaded bore 25 is provided in the portion 15 which is coaxial with a threaded bore 26, Fig. 2, in the lower arm of the movable member 17 and also with an unthreaded bore 27 in the portion 16 of the frame 10. For internal thread gauging a spring 30 is inserted in the bore 25 between a screw in the bore 26 and a screw 31 in the bore 25 so that the pressure of the spring 30 urges the gauging-members 34, 37 apart into contact with the surface to be gauged. The members 34, 37 can be urged together against this spring action by pressure between a finger grip 32 and hand-hold 11. For gauging external threads the dial gauge is reversed so that its plunger co-operates with the upper anvil 21, Fig. 2, and the spring 30 is inserted in the bore 27 and held therein by the screw 28 in the bore 26. The spring pressure in this case urges the external gauging members 45, 46 together and they may be separated for insertion of the test-piece by means of a fingerlever 41 having a cam surface 43 co-operating with a pin extending from the upper arm of the movable member 17. Sections of plastic material 60, 61, 62 may be inserted in the T- slot 33 to protect the external surface of the member 17.
Patent GB-462805-A (GB)
Title: Improvements in or relating to speed governors for internal combustion engines operating with injection of liquid fuel
IPC: F02D1/00
Filed: 1936-07-25
Abstract: 462,805. Speed governors. BOSCH AKT.-GES., R. July 25, 1936, Nos. 20608 and 20609. Convention dates, July 29, 1935 and Oct. 30, 1935. [Class 57] A spring-loaded piston 5 is connected to the rack 4 for controlling the output of a fuel injection pump 1 and the chamber 7 is connected by a pipe 9 to an air induction pipe 10 having a hand-operated throttle valve 12. During normal running the air flows in the direction of the arrow A. On unintentional reverse running of the engine the air flows in the direction of the arrow B and would cause excessive pressure to act in the chamber 7 resulting in the maximum fuel supply being delivered by the pump and prevent the lever 13 from moving the piston to reduce the fuel supply. A valve 15 is fitted and is actuated by a rod 17a to open the pipe 9 to atmosphere through the port 14 and close the connection between the pipe 9 and the induction pipe 10. In a modification, the port 14 is connected to the chamber 8 and the valve connects this chamber to the induction pipe. Fig. 3 shows the pipe 9 fitted with a valve 18 and the port 14 controlled by a spring-loaded valve 15b. Alternatively, the port 14 is connected to the chamber 8. The valve 18 may be omitted.
Patent GB-1283886-A (GB)
Title: Improvements in or relating to vehicle safety means
Inventor: BENDLER HELLMUT
IPC: B60R21/18
Filed: 1971-04-19
Abstract: 1283886 Protecting cushions DYNAMIT NOBEL AG 19 April 1971 [31 Jan 1970] 20630/71 Heading B7B A motor vehicle safety means comprises an inflatable cushion attached to a safety belt on the side remote from the occupant and communicates, e.g. by a hose, with gas supply means for inflating the cushion. The cushion is arranged in a protective sleeve of the belt provided with an opening seam. The gas supply means may comprise a gas generating cartridge or a compressor disposed underneath the occupant's seat and is actuated by an inertia switch connected to the electrical supply system of the vehicle. The safety cushion may have an inner wall to reduce the likelyhood of the outer wall bursting.
Patent GB-1079994-A (GB)
Title: Improvements relating to sampling devices for hydraulic fluid
Inventor: FUELL FREDERICK JAMES
IPC: B01L3/00
Filed: 1964-05-19
Abstract: 1,079,994. Regulating fluid flow. FAIREY ENGINEERING Ltd. May 13, 1965 [May 19, 1964], No.20642/64. Heading G3H. [Also in Division F2] In a valve for taking samples of hydraulic fluid from a high pressure hydraulic system e.g. at about 3, 000 Ibs/sq. in., contamination of the fluid by the valve is avoided by using a closure 19 which is pivotable on a spindle 20, which is rotated against a light spring 22 by a screwdriver from outside the valve, out of engagement with seat 23 which is preferably sited on the downstream side of a screw threaded plug 17 inserted in a close fitting plain cylindrical bore in a plug 14 to form a labyrinth restrictor which is removable through opening 15. In an alternative embodiment Figs. 4, 5 and 6 (not shown) the restrictor plug (31) is directly attached by a stem to a screw threaded member closing the opening (15) and the seat comprises a disc (32) urged by a spring against a circlip surrounding the outlet bore and provided with apertures (36) which are obturated by a plug (34) screw threaded into the valve body to abut the disc (32) on the outlet side thereof. Both embodiments are provided with outlet spouts and a detachable cover 25 and the engaging closure and seat surfaces are optically flat and may have a deposited layer of chrome which. may also be applied to the labyrinth passages of plugs 14 and 17 which may alternatively be formed of chrome steel.
Patent GB-724029-A (GB)
Title: Improvements in and relating to water conditioners
IPC: B01J47/00
Filed: 1952-08-18
Abstract: 724,029. Purifying water by ion exchange. CANADIAN GENERAL ELECTRIC CO., Ltd. Aug. 18, 1952. [Aug. 21, 1951] No. 20710/52. Class 46. A device adapted to provide small quantities of purified water comprises a tubular body having a restricted discharge orifice at its foot and a funnel-like upper extension adapted to seat on the mouth of a container (e.g. a milk bottle) and containing within the tubular bodv a charge of ion-exchange material. A tubular body 1 made of a transparent plastic such as polystyrene is about 1 inch in diameter and 4¢ inches long and is filled with a synthetic resin ion-exchange material 6 which changes colour from blue to amber as it becomes exhausted. The material is retained by glass wool 5 above a hole 4 permitting a flow of about one quart of water per hour. To the body 1 is glued an extension 2 with a reflex rim 2a and a multiplyperforate cover 10 separated from the ionexchange material by glass wool 7. The device may be supported within the neck of a milk bottle by three ribs 9, the spaces between which permit egress of air as slowly-running water from a tap passes through the device into the bottle. If the inflow rate is too great the surplus (untreated) water flows over the rim 2a, the discharge orifice thus serving to gauge the flow to the proper amount which can be effectively treated.
Patent GB-1046410-A (GB)
Title: A worm-and-wormwheel drive having a torque limiter
IPC: F16H35/10
Filed: 1964-05-20
Abstract: 1,046,410. Worm and wheel gearing. ELEKTRO-MECHANIK G.m.b.H. May 20, 1964 [May 20, 1963], No. 20806/64. Headings F2C, F2L and F2Q. Friction clutches 3 connecting the ends of a freely rotatable worm 1 to a drive shaft 2 are disengaged on excess torque by the worm 1 moving axially to move balls 10 against adjustable springs 5 up the sloping side 11 of the annular drive shaft groove 8, and radially, thus axially disengaging annular friction clutch disc linings 7 from one of the worm ends. The other clutch is disengaged by balls 10 being held axially against the straight edge of groove 8 adjacent the worm end. A lever 12 displaced by axial worm movement switches off the wormdrive motor.
Patent GB-1542712-A (GB)
Title: Method for the recovery of blasting oil from effluents from the production of nitroglycerine-containing explosives
IPC: C06B21/00
Filed: 1976-05-20
Abstract: Blasting oil contained in the effluent from the production of explosives containing nitroglycerine is recovered by extracting with nitroaromatics which make part of the final explosive, the resulting extract being used completely in the explosive production. Residues of nitroaromatics may be removed from the purified effluent by means of an extraction liquid being sparely water-soluble, such as toluene or xylene or a mixture thereof.
Patent GB-1200818-A (GB)
Title: High density wet grinding mill
Inventor: CORNFORD ARTHUR S
IPC: B02C17/06
Filed: 1968-05-02
Abstract: 1,200,818. Tube mills; wet grinding. ASHMORE, BENSON, PEASE & CO. Ltd. 2 May, 1968 [2 May, 1967], No. 20914/68. Heading B2A. A wet grinding mill has a.discharge compartment 38, Fig. 1, provided with radial lifter bars 39 and an annular opening and separated from a grinding zone by a discharge grate 34. Extra diluent to decrease the viscosity of pulp is added to the discharge compartment through an annular outlet. The mill is typically operated with a high pulp density, e.g. more than 75% and diluent to facilitate discharge is added via a line 41, rotatable hub 42, lines 43, T-junctions 44, Fig. 2, and nozzles in each sub-compartment of the discharge compartment formed by the lifter bars 39. The hub is arranged so that diluent is supplied to the compartment only during the last 45‹ of rotation of the mill, and the nozzles are closed by spring-loaded valves Fig. 4 (not shown) to prevent ingress of pulp when the diluent supply is off. In a second embodiment, the mill has two discharge openings and water is supplied at one side as described and at the other via a pipe 64, Fig. 5, an annular chamber 65 communicating with a partitioned chamber and pipe lines 70 which supply nozzles 72. In a further embodiment, the mill has a dual-outlet peripheral discharge, Fig. 8 (not shown) and diluent is supplied only at the lower part of the array of discharge nozzles.
Patent GB-188394-A (GB)
Title: Improvements in perambulators, invalid carriages or the like
IPC: B62B7/06
Filed: 1921-08-09
Abstract: 188,394. Dunkley, W. H. Aug. 9,1921. Folding and collapsable vehicles.- Relates to perambulators, invalid carriages, &c. of the kind described in Specification 117,974. According to the invention the framework of the body is formed of two or more rings pivoted at the top and bottom so that they may be revolved to lie in one plane or separated into an extended position to serve as a frame for the body and canopy. In the form shown in Figs. 1 and 2, the frame consists of threes pairs of semi-circular hoop-like members 1, 2, 3 pivoted at 4 and 5 between plates 6, and kept in the extended position by pivoted struts 8. Laterally extending members 7 may be provided at the top to support the canopy. The members 1, 3 carry wheels 12 on outwardly cranked springs 10. Handles 18 are provided on a tube 13 capable of sliding through eyes 14 so that the handle at either end may be brought. into operative position. The body may be of the inflatable kind described in Specification, 188,403, or may be formed of two metal plates hinged together at the bottom, the ends being of leather or other flexible material. In the form shown in Fig. 11, the road wheels 12 are carried on axles mounted on springs 25 on longitudinal members 26. The members 26 are slotted to engage with studs 28 on the hoops 1, 3. In this construction, the handle, may be pivoted to the plates 6 at the top of the frame.
Patent GB-723974-A (GB)
Title: Improvements in and relating to ejection seats for aircraft
IPC: B64D25/10
Filed: 1951-09-07
Abstract: 723,974. Ejection seats for aircraft. MARTIN, J., and MARTIN-BAKER AIRCRAFT CO., Ltd. Sept. 2, 1952 [Sept. 7, 1951], No. 21134/51. Class 4. An ejection seat for aircraft having thigh or knee guards which remain in a retracted position during normal flight and on ejection of the seat are automatically or manually caused to take up an extended position has a construction of seat par characterized by hollow extrusions 17 forming the front corners thereof and having slotted side extensions 18 into which extend plates 19 forming the sides and front face of the pan, the bores of the extrusions housing spring-loaded sliding tubes or plungers 20 forming the retractable thigh and knee guards. The upper ends of the sliding tubes 20 may have radius arms 23 pivotally secured thereto, the other ends of the arms being attached to the seat pan. Specification 679,063 is referred to.
Patent GB-156852-A (GB)
Title: A new or improved pulverizing apparatus
IPC: B02C17/20
Filed: 1919-08-28
Abstract: 156,852. McLaughlin, W. L. Aug. 28, 1919. Ball and like mills.-A tube mill, especially adapted for use in reducing fuel to an impalpable powder after comminution to a finely-granular state, comprises a drum 32, which is supported on rollers 33 driven by worm gearing 40, 41, and is mounted to rotate about a hollow shaft 34 carried on standards 36. The drum contains a number of rods or rollers 38 of varying diameters so that the spaces between the rods of larger diameter are approximately completely filled by the smaller rods, and the whole forms a compact mass in the bottom of the drum, the rods being free to roll over one another when the drum is rotated. The fuel is fed from a hopper through a pipe 35 to the interior of the shaft 34, and is distributed evenly throughout the length of the drum by means of a screw-conveyer 44, and a helical slot 47 in the slide of the shaft, the inclination of the slot being downwards toward the delivery end of the drum. The ground material is set in motion by introducing compressed air through a number of nozzles 52, arranged throughout the whole length of the drum and directed towards the delivery end, and the finest material is withdrawn bv means of weak suction induced by a fan through a tube 49 attached to a casing 48 on the end of the drum, the eduction pipe from the fan leading to a dust-collector.
Patent GB-934568-A (GB)
Title: Improvements in or relating to a holder for electronic valves
Inventor: KOVARIK FRANTISEK
IPC: H01R33/76
Filed: 1962-06-01
Abstract: 934,568. Holders for thermionic valves. TESLA, NARODNI PODNIK. June 1, 1962, No. 21218/62. Class 38 (1). A valve holder has a bottom insulating plate 2 and cover 4 assembled on a longitudinal flat spigot 1 which has a lower widened end shaped as a resilient fork, with openings 21 in the bottom insulating plate 2 containing contact springs 5 with upper bent jaw-shaped ends 51 which are located in recesses 44 under openings 41 in the cover 4 used for the insertion of base pins of valves. Wings 12 on spigot 1 (initial position shown in dotted lines in Fig. 1) are bent outwards to the position shown in full lines to retain the assembly. Shoulders 53 on contacts 5 bear on the bottom insulating plate 2. The openings 21 in plate 2 are arranged so that the lower solder ends 52 of contact springs 5 are deflected from a direction parallel with the imaginary axis of the valve base pins so that they can be inserted in the punched openings 82 of printed circuit board 8 at the intersection points of perpendicular lines forming a standard 0.1 inch square grid. The valve holder is mounted on base 8 by the resilient fork on spigot 1 springing into slot 81 in board 8. Assembled to spigot 1 is a member 7 with integral soldering tag 71 for fixing protective or cooling shields or a valve holder. Member 7 may take different forms. In another embodiment (Fig. 2, not shown), assembled on spigot 1 is a shielding cylindrical spacer and a top insulating plate provided with two rows of openings circumferentially spaced with contacts 5 passing through the outer openings and ends 51 located beneath hole 41 and above the inner openings in the top insulating plate. The spacer is directly connected to spigot 1. In a further embodiment (Fig. 3, not shown), the cover 4 has integral with it a conical spacer around spigot 1.
Patent GB-570129-A (GB)
Title: Improvements in or connected with carding engine condensers
IPC: D01G15/58
Filed: 1943-12-18
Abstract: 570,129. Carding-engine condensers. PLATT BROS., & CO., Ltd., MARSDEN, I., and CHANTLER, T. Dec. 18, 1943, No. 21277. [Classes 120 (i) and 120 (ii)] The surface drum of a carding-engine condenser is provided with bearings and driving means located within the ends of the drum so as to provide clearance for bobbin flanges 26, Fig. 2, to extend at least substantially to the drum axis. The drum is formed with bearing inserts 11 and is mounted on inset shaft-beariug ends 13 supported in upwardly-cranked bearing brackets 14 located within the ends of the drum, a driving shaft 15 being located below the drum axle 12 and complementary gearing 17, 18 on the driving-shaft and drum axle also within one end of the drum whereby the bobbin flanges 26 may extend beyond the ends of the drum shaft 12. The shaft 15 is driven through gear-wheels 19, 20 mounted respectively on the shafts 15, 21, Fig. 1, through a chain wheel 22 and chain 23 driven from a wheel 24. The roving 29<X> passes from the rubbers 30 through guides 31 to the bobbin 25 supported on the drum surface 10 and having its turned end portions 27 against the surfaces 28. The driving arrangements may be applied to full length or axially aligned halflength drums while the drums at either side for driving waste bobbins may be driven from the driving-shaft of the main winding drum or drums.
Patent GB-1475211-A (GB)
Title: Ccd circular shift register cells and stack memory systems incorporating such cells
IPC: G11C27/04
Filed: 1975-05-20
Abstract: 1475211 Shift register stores BURROUGHS CORP 20 May 1975 [21 June 1974] 21383/75 Heading G4A A CCD shift register cell 11 includes an upper two-phase shift register having an input A 1  and and an output B 2  and a lower two-phase shift register having an input B 1  and an output A 2 , logic 19, 21 controlling the input and output of data into and out of the upper and lower shift registers and the selective interconnection of the upper and lower shift registers into a loop. A pluraility of such shift register cells 11 may be included in a last-in-first-out memory, the cells being arranged in rows between an input buffer 13 and an output buffer 15, the bits of each word from input buffer 13 being supplied in parallel to the first cells 11 of the different rows. In each row bits are supplied from the input buffer to the input A 1  of the first cell 11 and circulated clockwise through the upper and lower shift registers of the first cell via logic 21, 19. When the first cell is full input of the next bit causes the first entered bit to pass from output A 2  of the first cell to the input A 1  of the next cell 11. Read-out of the last bit takes place from output B 2  of the first cell 11 to the output buffer 15; when a bit is read out of the first cell 11 the last bit in the second cell 11 is fed from the output B 2  of the second cell to the input B 1  of the first cell. Write and read operations are controlled by logic connected to a control loop (45, Figs. 3, 4, not shown) formed as a circular shift register having the same number of stages as each cell 11  and containing a single "1" which identifies the position of the last bit entered into any of the first cells 11; detection of the "1" at respective positions allows write or read operation if such operation has been requested. During a write operation stepping of the control loop is inhibited whereas each time a bit is read from the first cell 11 the control loop is stepped twice in the period that each of the cells 11 steps once. The memory may be modified to operate as a first-in-first-out memory by connecting the B 2  outputs of the last cells 11 to the output buffer 15.