baber/WOPTO huggingface dataset:
Patent GB-837702-A (GB)
Title: Improvements in aircraft retractable undercarriages
Inventor: NICHOLL EDWARD JAMES
IPC: F16F5/00
Filed: 1956-07-03
Abstract: 837,702. Liquid springs. DOWTY EQUIPMENT Ltd. June 26, 1957 [July 3, 1956], No. 20620/56. Class 108(3) [Also in Group XXXIII] An aircraft retractable undercarriage comprises a liquid spring connected to a pressure source in the aircraft through a valve, and means operable on retraction of the undercarriage to open the valve to allow free liquid flow between the spring and pressure, source and vice versa. Fig. 2 shows an undercarriage leg retractable about a transverse axis on trunnions 9 by a jack (not shown) extending between the aircraft and a lug 11 on an outer tubular. member 8. An inner tubular member 5 is mounted for castoring movement in member 8 by an anti-friction thrust bearing 12 and a needle roller bearing 13. A cylinder 4 slidably mounted in member 5 by anti-friction rings 6 and 7, is constrained to rotate with member 5 by a scissors linkage (not shown) and bears at its Iower end a landing wheel (not shown). The fluid chamber of the fluid spring is' defined by cylinder 4, end seal 24 and a partition 19, and contains a piston 21, a, spring loaded valve allowing restricted fluid flow from either side of the piston to the other. The piston rod 22 is secured to the upper end wall 23 of member 5, and is hollow. An ecentric pin 27 on wall 23 co-operates with a hydraulic unit 26 on member 8 to damp castoring movement, and forms with a sleeve 32 a rotatable pipe joint. A flexible hose 28 connects the pressure source on the aircraft to pressurize the damping unit, and also communicates through the rotatable pipe joint, a duct 48 in wall 23, a non-return valve 31, and' the hollow piston rod 22, with the liquid spring. While the undercarriage is lowered, the liquid spring is isolated by non-return valve 31, and absorbs shocks in known manner. On retraction (the landing wheel being centred), a roller 38 on lever 35 pivoted to member 8 contacts an abutment 39 on the aircraft, whereby the lever operates a plunger opening the non- return valve. Variations in temperature then no longer affect the characteristics of the spring, which remains pressurized to the pressure of the aircraft source. On lowering the undercarriage, valve 31 closes and the spring functions conventionally. Specifications 539,966 and 685,469 are referred to.
Patent GB-994024-A (GB)
Title: Improvements in fluid conduits
IPC: F15D1/00
Filed: 1962-05-30
Abstract: 994,024. Centrifugal blowers. SOC. LAB. May 30, 1962 [June 1, 1961], No. 20718/62. Addition to 948,446. Heading F1C. [Also in Division F2] Eddy formation and pressure head losses at the outlet of a centrifugal blower are reduced by a member 52, the exposed surface of which is of similar contour to the low pressure side of an aircraft wing, located at the junction between a curved duct portion 50 and a straight duct portion 51, on that side a of the duct which is nearer the axis of curvature of portion 50, all as in the parent Specification, and an aerofoil section vane 53 located opposite member 52 is pivotable about axis 54 like a butterfly valve. A plurality of such vanes may be used, their axes 54 lying in a common plane transverse to the conduit.
Patent GB-398987-A (GB)
Title: Improvements relating to re-sealing traps
IPC: E03C1/294
Filed: 1932-07-23
Abstract: 398,987. Sanitary traps. COCKBURN & CO., Ltd., M. and LEISHMAN, D., Gowanbank Iron Works, Falkirk, Stirlingshire. July 23, 1932, No. 20795. [Class 33.] A sanitary trap of the type having an airtransfer passage from the inlet to the discharge branch to prevent the breaking of the seal, comprises a casting 1 provided with an internal rib 2 serving to partition the interior of the trap into a compartment 4 constituting the airtransfer passage and a compartment 3 constituting the liquid discharge branch, and an inlet branch 5 connectible to the appliance and formed as a separate unit adapted for attachment to the casting. The compartment 3 is so formed as to contain a greater amount of water than the inlet side to ensure re-sealing after strong suction, and the inlet branch is preferably constituted by an externally screwthreaded pipe engaging an internally screwthreaded aperture 6 in the casting.
Patent GB-578199-A (GB)
Title: Improvements in mechanisms for obtaining intermittent movement from a variably oscillatable member
IPC: F16D41/14
Filed: 1943-12-13
Abstract: 578,199. Ratchet gearing. SODECO SOC. DES COMPTEURS DE GENEVE. Dec. 13, 1943, No. 20356. Convention date, Nov. 18, 1942. [Class 80 (iii)] A shaft receives intermittent movement from a variably oscillatable shaft, mechanism being provided by which only the first, or the third, or the fifth &c. movement of the driver is transmitted to the driven shaft. As a modification, the second or fourth, or sixth movement may be transmitted. The mechanism is mainly intended for the control of contactors by means of a finger plate for automatic telephones. The oscillatable shaft 1 mounted in plates 2, 3 is urged always by a spring 4 to an initial position determined by a finger 5 and a stop 6. A gear wheel 7 on shaft 1 meshes with a larger wheel 8 loose on the driven shaft 9 which is also urged to an initial position by a spring 10, finger 11. and stop 12, the effort of the springs being indicated by arrows 13, 14. A ratchet wheel 15 fixed on shaft 9 is engaged by a retaining pawl 16 mounted on a plate 17 and loaded by a spring 18. A disc 19 loose ori the shaft and having a peripheral notch 26 carries a pin 21 which is urged by a spring 20 against a stop 22. A second disc 23, also having a peripheral notch 27, and slightly larger than disc 19, is fixed on the hub of ratchet wheel 15. The gear wheel 8 has a spring-loaded pawl 24 wide enough; Fig. 2, to engage both the discs. Normally the two notches 26, 27 coincide and are engaged by the pawl 24 as in Fig. 1. The first forward movement of the shaft 1 causes wheel 8 to rotate opposite to the 'direction of arrow 14 and the pawl 24 to drive the two discs 19, 23 and therefore the shaft 9. On the return movement of shaft 1, the wheel 8 also returns but the shaft 9 remains stationary being held by pawl 16. The pawl 24 rides back on the periphery of disc 23 and permits the disc 19 to return under the action of its spring. During subsequent oscillations of shaft 1, the shaft 9 remains stationary, the pawl 24 sliding over the periphery of disc 23. At the end of a series of oscillations of the shaft 1, the pawl 16 is released and the ratchet wheel 15 and shaft are allowed to return to their initial positions. The third forward movement, only, of the driving shaft may be transmitted to shaft 9 by the mechanism shown in Figs. 7, 9. The parts already described are supplemented by a stepped cam 31 co-operating with pawl 24 and fixed on a second ratchet wheel 32 loose on shaft 9 and co-operating with a returning pawl 33 and urged by a spring 34 to bring a pin 35 in disc 23 against a pin 36 in ratchet wheel 32. The lower step of cam 31 is of larger radius than that of disc 23 itself larger than disc 19. At the end of a series of oscillations of shaft 1, a rod 44 is moved which, in conjunction with lever 39, link 40, and fingers 41, 42, releases all the pawls simultaneously. By reversing the direction of the ratchet teeth and pawls, the transmission of only the second or fourth or sixth forward movement may be effected.
Patent GB-244151-A (GB)
Title: A new combination tool
IPC: B25H1/00
Filed: 1924-09-04
Abstract: 244,151. Ratcliffe, T. Sept. 4, 1924. Drilling.-A tool which can be used as. a square, angle gauge, drilling jig, or for marking out work comprises two preferably graduated arms 1, 2 hinged together by a pin 5 provided with clamping-screws 6, and arranged to be parallel to each other in the folded position, in which they can be secured by a distance piece 7. Each arm preferably consists of two parallel strips A, B secured together by distance pieces 3. Bush holders 10 are slidably mounted on the arms 1, 2 and can be clamped by nuts 12 in adjusted positions, these holders being adapted to receive bushes to fit drills when the tool is used as a jig, or to receive scribers for marking out purposes. The centres of the holders and that of the pin 5 lie on a straight line when the arms are folded, and the holders may be marked with vernier scales. Also mounted to slide in the arms is a spacing gauge 14 made in two parts which can be clamped by nuts 16, each part having a half pin or half bush, a ring 31 being provided for alignment of the two parts of this gauge. For angular setting of the arms, an arc 18 is provided which is graduated in degrees by means of holes arranged in staggered formation as shown, corresponding holes being formed in the arms to receive a securing pin. The arc is also provided with degree scales 25 and an additional arc 19 is provided to which the arms can be secured by clamps 30 for setting to angles which are not full degrees. The arc 19 may be arranged at various positions between the arms 1, 2 to allow the necessary movement of the holders 10. A third arm 20 is slidably mounted on the arm 1, clamps! being provided for securing it to this arm and to the arc 19. Straight-edges of L-section, which may be graduated, are provided for attachment to the arms 1, 2, the width of these straight-edges being such that they touch each other when the arms are folded. If the arms 1, 2 are not graduated, a distance gauge is provided adapted to fit over the pin 5 and the pin on the gauge 14 for setting the latter to a given distance from the hinge pin.
Patent GB-1061545-A (GB)
Title: Arithmetic section
IPC: G06F7/57
Filed: 1965-05-18
Abstract: 1,061,545. Arithmetic units for digital computers. GENERAL PRECISION Inc. May 18, 1965 [Aug. 28, 1964], No. 20872/65. Heading G4A. A register C (Fig. 1, not shown) coupling the parallel type memory 24 of a digital computer, particularly adapted for aircraft and space guidance, to the upper and lower register means A, B of the arithmetic converts parallel information from the memory into serial information for the registers A, B, logic circuitry between the registers permitting arithmetic operations to be carried out on selected operands from the memory. To place a selected operand in the A register, the contents of a data register 24b in the memory 24 (Fig. 3, not shown) are transferred in parallel into the C register with a one-bit right shift, at P27 bit time of the first word phase. For the remainder of the word time. the C register feeds the adder 10, the output of which is directed to the A and C registers while the B register recirculates unchanged. An operand may similarly be placed in the B register. An operand transferred into the C register may be added to a word in the A or B registers by feeding the contents of the A or B register and the C register to two of the three inputs of the adder 10. Double length addition may be carried out by following an add B operation by an add A operation, a carry generated at P0 bit time of the add B operation being applied at P27 bit time to the add A operation. In a similar manner subtraction of the A or B register from a selected operand may be carried out. A multiplication operation, the contents of the A register being multiplied by a selected operand, may be carried out in fifteen word times, a double length product being formed with the more significant bits in the A register and the less significant bits in the B register. One multiplier bit is used during the first word phase but during the additional phases two bits are used, the resulting multiplicands, shifted one bit with respect to each other, and the partial product shifted two bits to the right making up the three inputs to the addersubtractor. The last word phase is used for sign correction. Division is carried out by the non-restoring method the quotient being located in both the A and C registers and the remainder in the B register. The arithmetic section can also carry out shifting operations, in a first left shift operation a mask being prepared in the A register to prevent the most significant bits being shifted into the less significant bit positions. Long shifts in which the contents of the B register are shifted into the A register and vice versa may also be carried out. A data transfer instruction having four flag bits permits the transfer of bits into specified positions in the C register into the A and B registers and vice versa. An operand in the C register may be transferred into the instruction counter 12, the contents of the A register being simultaneously shifted into the C register.
Patent GB-414894-A (GB)
Title: Improvements in means for supplying air to incineration furnaces with zone grates
IPC: F23G5/00
Filed: 1933-07-25
Abstract: 414,894. Air supply to furnaces. AKTIESELSKABET VOLUND, 147, Oresundsvej, Copenhagen. July 25, 1933, No. 20893. Convention date, March 15. [Class 51 (i).] In an incineration or refuse consuming furnace in which different zones of the grate are supplied with air through air boxes 3 on the sides of the combustion chamber and depending flues 7, 8, the air blast for the zones behind the ignition zone is taken through the air boxes from the same fan which supplies air directly by way of a flue 5 to the blast chamber below the ignition zone.
Patent GB-382304-A (GB)
Title: Means for sharpening lead pencils
IPC: B43L23/00
Filed: 1931-07-23
Abstract: 382,304. Hones. MARSHALL, R., 47, Sorbie Road, Ardrossan, Ayrshire. July 23, 1931, No. 21004. Drawings to Specification. [Class 60.] A pencil sharpener is provided with a hone for sharpening the cutter blade, the hone being mounted in the base of the sharpener and provided with a removable shield.
Patent GB-1337930-A (GB)
Title: Driving device for powered vehicles and more particularly for lawn-mower vehicles
IPC: B62D61/08
Filed: 1972-05-05
Abstract: 1337930 Controlling vehicles J F H BOUYER 5 May 1972 [8 June 1971] 21073/72 Heading B7H A vehicle e.g. a lawn-mower vehicle, having a steerable wheel 10 and two driven wheels 15, 15<SP>1</SP> is controlled by a single lever 1, movement of the lever 1 in a first direction causing a roller to tension a drive belt to engage the drive and movement of the lever 1 in a second direction causing the steerable wheel 10 to be rotated. In a first embodiment (Figs. 1, 2) the motor drives two pulleys 8, 8<SP>1</SP> of different sizes, the pulleys 8, 8<SP>1</SP> having belts 9, 9<SP>1</SP> which pass round a pulley 13. The pulley 13 drives the rear wheels 15, 15<SP>1</SP> via bevel gear 14, shaft 2 having splined ends 4, 4<SP>1</SP>, sprockets, 5, 5<SP>1</SP>, chains 17, 17<SP>1</SP> and sprockets 16, 16<SP>1</SP>. The lever 1 is fixed to a link 3 which can rotate about its axis but which is axially fixed. The end of the lever 1 has a clevis 7 which engages a plate 18 which carries two tensioning rolls 6, 6<SP>1</SP> and which is pivoted to the chassis at 19. Pushing the lever 1 forwards causes the roller 6 to tension belt 9 to drive the vehicle in first gear and pulling the lever backwards causes the roller 6<SP>1</SP> to tension belt 9<SP>1</SP> to drive the vehicle in second gear. The clevis 7 is also connected by a cable 12 running round pulleys 11, 11<SP>1</SP>, 11<SP>11</SP> to the steerable wheel 10 so that tilting the lever 1 sideways causes the wheel 10 to rotate. Tilting the lever 1 also causes a crank arm on the link 3 to shift the shaft 2 sideways so that on tight turns one of the splined ends 4, 4<SP>1</SP> disengages from the sprocket 5 or 5<SP>1</SP> so that only the wheel 15 or 15<SP>1</SP> at the outside of the turn is driven. Returning the lever 1 to its neutral position causes the brakes (not shown) to be applied. In a first modification (Fig. 7) the belt 9<SP>1</SP> passes around pulleys 8<SP>1</SP>, 13 and the belt 9 passes around pulleys 8 and 6. Pulling the lever 1 backwards tensions the belt 9<SP>1</SP> to drive the vehicle forwards as described above and pushing the lever forwards (as shown in Fig. 7) tensions the belt 9 and causes the outside of the belt 9 to engage the pulley 13 to drive the vehicle in reverse. In a second modification (Fig. 8) the shaft is formed as two half shafts 2<SP>1</SP>, 2<SP>11</SP>, having splined ends 4, 4<SP>1</SP> which engage a housing 20 on the bevel gear 14 and which contains spring 24. The link 3 is provided with a yoke 23 so that when the lever 1 is tilted sideways the yoke 23 engages disc 21 or 22 to shift either shaft 2<SP>1</SP> or 2<SP>11</SP>. On tight turns this movement is sufficient to disengage one of the splined ends 4, 4<SP>1</SP> from the housing 20, the spring 24 returning the splined end 4 or 4<SP>1</SP> into engagement with the housing 20 when the lever is returned to its neutral position.
Patent GB-1223105-A (GB)
Title: Improvements in or relating to loading units for machine tools
IPC: B23Q7/14
Filed: 1967-05-05
Abstract: 1,223,105. Workpiece and tool transferring. MOLINS MACHINE CO. Ltd., D. T. N. WILLIAMSON, and W. WOOD. 2 Aug., 1968 [5 May, 1967], No. 21106/67. Heading B3B. The Specification relates to a loading unit as described in related Specification 1,223,103, but the claims are directed to a loading unit having a rotatable member having paddles on each of which a tool magazine or a work pallet is mounted, and comprising a pair of cooperating parts for controlling the indexing of the rotatable member. The co-operating parts may be provided by a roller 412 fixed to the end of each paddle that engages in a recess in a hook member 413 positioned at a delivery position of the rotatable member, or by an hydraulically-operated plunger 469 that engages in peripheral slots 471 in a boss 472 that rotates with the rotatable member. The rotatable member can be driven at two speeds, a slow speed being selected by a switch operated when a paddle approaches its delivery position.
Patent GB-595137-A (GB)
Title: Improvements in or relating to bobbins for textile spinning machines
IPC: B65H75/30
Filed: 1944-10-30
Abstract: 595,137. Bobbins. NICOLL, J. L. Oct. 30, 1944, No. 21119. [Class 120 (iii)] A single or double flanged bobbin, in which the outer face of one or both flanges is reinforced by an insert of compressed fibre or other wear-resistant material, is characterised by the insert being in the form of an annulus which is dished prior to its application on the side to be applied to the flange, and which is then forced into an annular depression or channel in the flange face and is held in the flattened state by screws or other holding means. As shown, an insert ring 8 is dished, glued and fitted tightly, concave side inwards, into a channel 7 cut in the wooden flange 3. It is then tightened down flush with the flange face by wood screws, and tightly engages the outer edges 14 of the channel 7. Holes 6a are drilled in the insert and flange to engage the usual driving pins, which will ride on the insert when the bobbin is first dropped into position on a winding spindle. The invention may be used to increase the resistance to wear of a new bobbin or to repair a bobbin already worn by the driving pins.
Patent GB-460247-A (GB)
Title: Improved means for securing the detachable front parts of road vehicle lamps
IPC: F21V17/16
Filed: 1935-07-25
Abstract: 460,247. Hook fastenings. LUCAS, Ltd., J., and NEILL, R. L. July 25, 1935, No. 21126. [Class 44] [Also in Group XI] The detachable front part c of a road vehicle lamp is secured to the lamp body b by a catch a arranged to slide through an aperture d in one of the parts to be interconnected, e.g. the lamp body b, and to rock in relation to that part, the catch being provided with a spring f acting on its inner end and with a detent j or the like on its outer end to engage a hole k or recess in the other part to be interconnected, e.g. the front part c. A transverse finger piece i is provided at the outer end of the catch a. The opening d is provided in a local swelling e on the body b. The front part c engages the body b at a point diametrically opposite the catch a by a tongue and slot m, n.
Patent GB-627022-A (GB)
Title: Improvements in or relating to electron discharge and like devices with vacuum-tightenvelopes
IPC: H01J21/08
Filed: 1946-07-15
Abstract: 627,022. Velocity-modulated tubes. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. July 15, 1946, No. 21196. Convention date, Sept. 10, 1941. [Class 39 (i)] The position of a movable member within a vacuum-tight envelope is controlled by flexing an envelope part 2, Fig. 1, of reduced thickness, the part 2 being integral and continuous with the main body portion 1 of the envelope. Preferably, two rod portions 3, 4 are soldered to the part 2, one on each side, the portion 4 carries the movable member, and the compound rod 3, 4 pivots about the point O, being actuated for example by a micrometer screw. For large angular displacements of the rod, the movable member must be guided. In one arrangement, Fig. 2, one or both resonators 8, 9 of a velocity modulation tube are tuned by moving grid(s) 7 by means of rod construction(s) 3, 4, such movement being permitted by flexible resonator walls. Wall portion 1 is of metal and is sealed to two glass members 5, 6. The invention may also be applied to adjustment of (a) the position of the coupling loop between two resonators of a velocity modulation tube; (b) the position of the reflector electrode of a reflex velocity modulation tube; (c) the length of a drift tube of a velocity modulation tube; (d) an electron mirror in general. The Specification as open to inspection under Sect. 91 describes a modification, Fig. 2 (Cancelled), in which a corrugated flexible membrane 2 is soldered to the envelope portion 1, the rod member 3 passing through the membrane 2, and a further modification, Fig. 3 (Cancelled), in which a flexible metal membrane 2 is soldered to a glass tube 1, the rod member 3, 4 being in two parts. Forms are illustrated and described in which (a) the position of the coupling loop between two resonators of a velocity modulation tube is adjusted using the arrangement of Fig. 1, Fig. 5 (Cancelled, not shown); (b) the reflector electrode of a reflex velocity modulation tube is adjusted using the arrangement of Fig. 3, Fig. 6 (Cancelled, not shown); (b) two resonators of a velocity modulation tube are each tuned using the arrangement of Fig. 1, Fig. 7 (Cancelled, not shown). This subject-matter does not appear in the Specification as accepted.
Patent GB-1510721-A (GB)
Title: Dry heat process for dyeing and printing organic material which can be dyed with cationic dyes
IPC: D06L4/643
Filed: 1975-05-19
Abstract: 1510721 Azo dye CIBA-GEIGY AG 19 May 1975 [20 May 1974 13 Feb 1975] 21225/75 Heading C4P [Also in Division D1] The dye of formula is prepared by reacting the dye of formula with sodium hydroxide.
Patent GB-930343-A (GB)
Title: Isobutylene purification
IPC: C07C7/13
Filed: 1961-06-13
Abstract: Isobutylene containing n-olefins is purified by contact with a 5Ä crystalline aluminosilicate molecular sieve at less than 150 DEG F. maintaining a superficial velocity of 0,2-1,5 ft./sec. through the adsorption zone.  The space velocity may be 0,5-2 wt./wt./hr. and the temperature below 130 DEG F., e.g. 80-100 DEG F.  The sieve is desorbed alternately with adsorption periods, desorption being effected by heating to 400 DEG -750 DEG F., e.g. using hot natural gas, to strip n-butenes and polymers from the sieve.  The sieve is then cooled to 120 DEG F. by circulating methane or isobutane at 50-150 p.s.i.g., the gas being cooled during the circulation with water and liquid isobutylene.  The sieve is further cooled to 75 DEG -90 DEG F. by reducing the pressure to 30-50 mm. Hg. followed by repressuring with isobutylene.  Preferably adsorption pressure is 0-5 p.s.i.g. during the first 3-6 cycles and then increased to 10-25 p.s.i.g. and feed rate is preferably reduced during each adsorption period.  The sieve may be split into 2-4 isolated beds used one at a time sequentially during adsorption periods but all desorbed together.  Reference has been directed by the Comptroller to Specification 850,415.