baber/WOPTO huggingface dataset:
Patent GB-766575-A (GB)
Title: Improvements in and relating to the production of urea in granular form
Inventor: KNOWLTON ROBERT ELLIS
IPC: C07C273/16
Filed: 1954-05-05
Abstract: Substantially pure granulated urea is prepared by introducing into an agitated mass of substantially dry particulate urea a concentrated aqueous solution of urea at a temperature a little higher than its set point while continuing the agitation of the mass until granules are obtained, then drying the granules at a temperature of at most 120 DEG  C.  The agitation device is preferably a paddle mixer, drum granulator or ribbon mixer, and the urea solution is preferably introduced by means of one or more small-bore nozzles discharging on to the agitated mass maintained at a temperature of 10-90 DEG  C. (preferably below 60 DEG  C.).  The proportion by weight of dissolved urea to dry particulate urea is preferably in the range 0.25 : 1 to 3 : 1 (more preferably 0.4 : 1 to 0.7 : 1), and the concentration of the urea solution is preferably at least 60 per cent by weight (more preferably 85 per cent by weight).  The reactants and reaction conditions are preferably chosen so that the moisture content of the granules, before drying, is at most 7 per cent by weight.  The moisture content of the granules is preferably reduced in stages, e.g. to 3 per cent by weight, using a temperature of 50-60 DEG  C. and then to 0.1-1 per cent using a temperature of 60-120 DEG  C.  The dry particulate urea fed to the process may comprise fines from the screening of the dried granules and/or material obtained by crushing dried oversize granules.  The process may be operated in a batchwise or continuous manner.
Patent GB-429405-A (GB)
Title: Improvements in or relating to fuel sprayers for internal combustion engines
IPC: F02M61/16
Filed: 1934-05-01
Abstract: 429,405. Liquidf u e 1 injectors. VICKERS - ARMSTRONGS, Ltd., Broadway, Westminster, and LOVERIDGE, H. T. C., 1, Hawcoat Lane, Barrow - in - Furness. May 1, 1934, No. 13130. [Class 7 (iii)] A filter in the lower part of an injector is formed by a wire J wound helically around the guide of the spraying- valve C, or around a sleeve F secured to the guide. The sleeve has longitudinal slots G, and the wire is wound around a fine helical thread H cut on its outer surface. To ensure that the fuel passes through the filter, a baffle M is screwed on to the sleeve F.
Patent GB-1006634-A (GB)
Title: Axle beam mountings for tractor vehicles
Inventor: MARTIN GAVIN PATRICK BLANDY
IPC: B62D7/00
Filed: 1963-04-03
Abstract: 1,006,634. Axle beam mountings for tractor vehicles. JOSEPH LUCAS (INDUSTRIES) Ltd. March 25, 1964 [April 3, 1963], No. 13147/63. Headings B7D and B7H. An axle beam mounting for tractor vehicles comprises an axle beam 4 carrying stub axles 5 supporting road wheels 6, two corrugated plates 11 connected one to the beam 4 and the other to a chassis member 2, and a rubber pad 12a mounted between and bonded to the plates 11, each end of the beam 4 being connected by two parallel radius arms 11a, 12 to the chassis. When the beam 4 is moved angularly about the longitudinal axis of the vehicle, the radius arms 11a, 12 draw the beam 4 towards the chassis so that the pad 12a is compressed as well as being stressed in shear and hence exerts a restoring force on the beam. The radius arms 11a are pivotally connected to the beam 4 and to chassis members 1, and the radius arms 12 are pivotally connected to plates 13 secured on the beam 4, and to vertical chassis members 14. An anti-roll bar 15 is clamped to the arms 11a by U-shaped bolts 16 which pass through plates 17 mounted inboard of each arm. A pivotal arm 7, connected through a member 10 with the steering box and wheel, is mounted on a chassis member 3 and its ends are pivotally connected to links 8 connected to further links 9 connecting with the stub axles 5.
Patent GB-580689-A (GB)
Title: Improvements in or relating to the application of enamel compositions to aluminium base alloys
IPC: C23D5/00
Filed: 1943-08-13
Abstract: In the application of protective or decorative vitreous enamel coatings to aluminium base alloys amenable to precipitation-hardening heat treatment, the steps of maturing the enamel on the metal surface and that of the solution heat treatment of the alloy may be carried out simultaneously.  The enamel has a firing range, e.g. 500-520 DEG C., compatible with the solution heat treatment temperature range of the alloy.  The enamelled alloy is quenched by immersion or by an air blast or water spray and is age-hardened at room temperature (e.g. for seven days) or at a higher temperature (e.g. 175 DEG C. for 10 hours). Two examples of particular alloys which have been treated are (i) one containing 3.8 per cent. copper, 0.7 per cent. magnesium, 0.6 per cent. manganese, 0.35 per cent. silicon and 0.28 per cent. iron and (ii) 1.22 per cent. copper, 0.9 per cent. magnesium and 4.8 per cent. silicon.
Patent GB-253506-A (GB)
Title: Improvements in retreading apparatus for the covers of pneumatic tyres
IPC: B29D30/54
Filed: 1926-05-25
Abstract: 253,506. Burch, A. E. June 10, 1925, [Convention date]. Moulding wheel tyres.-Apparatus for retreading tyres comprises a steam-heated hinged mould 7, 9, extending over the tread but leaving the beads free, and an inter changeable tread-ring 8, the tyre being expanded by an air-lag 5, and a hinged floating ring 6. To accommodate tread-rings of different widths, liners 10 are inserted, when required, between the mould parts 7 and 9, the hinged strap 11 being slotted and held by bolts and nuts 12 to allow of this being done.
Patent GB-238326-A (GB)
Title: Improvements in reducing cylindrical bodies by rolling operation
IPC: B21B23/00
Filed: 1924-05-29
Abstract: 238,326. Katzenmeyer, J. A. May 29, 1924. Rolling; rolling tubes; skew-rolling; rolling- mandrels.-In a method of reducing cylindrical bodies such as metal tubes, the reducing pressure is applied to the body in such a manner as to cause the metal to flow spirally, the longitudinal component of the flow being greater than the transverse component. One or more reducing- heads may be employed, each head comprising a driven shaft 2 having a disc 1 to which is secured an annulus 3 grooved to receive hard metal balls 5 which are retained by a ring 6. Lubricating and cooling fluid is supplied from a pipe 9 and passes through passages 10 to the raceway by centrifugal action. When only one reducing-head is used, the work may be supported by rollers 13 or by a guide shoe. Three heads may be grouped round the work as shown in Fig. 8 or, in a modification, four heads may be used. In a modified construction of the head, rollers may be used in place of balls, or in some cases a non-rolling surface comprising a ridge 12, Fig. 11, may be employed. The path of movement of the balls relatively to the work is shown in Figs. 13 and 14. The work is rotated in the direction of the arrow x and is simultaneously fed forwards. As each ball effects the reducing operation it moves upwardly transversely of the work until it reaches the centre plane thereof at which point the reducing operation ceases. The speed of the work is sc arranged that the paths a - - d of successive balls overlap to give a substantially smooth surface while the longitudinal component of the flow of metal effected by the balls is always greater than the transverse component. In a machine for carrying out the method, the work is supported on a mandrel 24 by a rod 25 which extends through a head 26 rotating freely in a thrust block 27. The required rotary and longitudinal movements are imparted to the work by discs 16 driven from an electric motor 21 through shafts 20, 17. The discs are moved up to the work by means of a fluid pressure motor 22. The reducing-heads are driven from separate electric motors 15 and after leaving the heads the work passes between skew rollers 23 driven through the gearing shown in Fig. 1.
Patent GB-1027477-A (GB)
Title: Improvements in or relating to rotary duplicating machines
IPC: B41L39/00
Filed: 1964-03-31
Abstract: 1,027,477. Printing-apparatus. W. RITZERFELD, and G. RITZERFELD. March 31, 1964 [April 26, 1963], No. 13291/64. Heading B6C. A rotary duplicating machine for printing on to copy sheets 45 lines or sections from a master sheet 46, attached to a printing cylinder 1 so that the lines on the sheet extend axially of the cylinder, comprises means for intermittently controlling the co-operation of the cylinder 1 and an impression roller 18, a device 32, 34 controlled by the rotation of the cylinder 1 and adapted to count the number of copy sheets passing the line of printing G-H, and a system of indicators operated by the device 32, 34 and including lamps 35a, 35b, and 35c which after a predetermined series of copy sheets of one kind have been printed indicate the kind of sheet to be subsequently fed to the machine. Lines on the master sheet 46 are selectively printed when a raised portion 16 of a cam contacts a keying roller 17 and causes the roller 18 to be urged towards the cylinder 1 by a lever arrangement, not shown. The contact member 43 of the contact arm 32 of the counting device is initially positioned on the first contact member 44 of the disc 34 of the device, thus illuminating the red lamp 35a indicating the type of sheet to be fed to the feed rollers 41, 42. On operation of a single-revolution clutch the cylinder 1 and the cam 15 are both rotated clockwise and the selected lines are printed on the requisite sheet 45. Just before the revolution is completed a roller 47 contacts a lever 39 and causes, via a stepping mechanism 36, 37, the arm 32 to move to the second contact 44 which also causes the illumination of the red light in the circuit shown. The fourth contact illuminates a green lamp 35b indicating that a different type of copy sheet is required. A cam 15a co-operates with the roller 17 to control printing on this type of sheet. Further contacts illuminate a white lamp 35c indicating that yet another type of copy sheet is required. When the printing is finished the arm 32 does not co-operate with a contact 44, the lamps are all extinguished, and the arm 32 is returned to its initial position against an abutment 52.
Patent GB-1375607-A (GB)
IPC: H04L27/227
Filed: 1972-03-22
Abstract: 1375607 Transmitter-receiver systems; synchronous demodulators; digital transmissionrecovering clock pulses PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 22 March 1972 [25 March 1971] 13417/72 Headings H3A H3Q and H4P A transmitter receiver system for information pulses, e.g. from a teleprinter comprises a clock pulse generator 3, a synchronizing circuit 2 for synchronizing the information pulses with the clock pulses, a carrier generator 4 whose output has a given phase relationship with the clock pulses, a modulator 5 for phase change modulation of the carrier, a carrier regenerator 8 and a synchronous demodulator 13 to which the received modulated carrier signal and the regenerated carrier are applied, a clock pulse regenerator 15 for deriving clock pulses with the proper phase from the zero passages of the demodulated signal and a phase comparator 16 connected to the outputs of the carrier and clock pulse regenerators 8, 15 for applying a control signal to the carrier regenerator 8 so that the regenerated carrier and clock pulses have the same phase relationship as in the transmitter 2-6. As a result of phase change modulation, the modulated carrier signal may have any of different phase positions corresponding to the number of code groups in the information signal. In the case of a simple binary encoded signal, the phase of the carrier is reversed whenever an information pulse is present. The clock pulse regenerator 15 (Fig. 2, not shown) comprises a low pass filter (24) and a zero-passage detector (25) for deriving a clock pulse synchronizing signal. It also includes a phase comparator (23) for determining whether the output of a clock pulse generator (20) applied via a divider (22) is positive or negative in the presence of the above synchronizing signal and for applying an error correcting signal to an add-subtract device (21) so that clock pulses of the proper phase are produced at an output terminal 17. The carrier regenerator 8 comprises a full wave rectifier 9, a band-pass filter 10, a pulse generator 11 and a bistable divider 12. The phase comparator 16 applies a control signal for altering the state of the bi-stable 12 and hence the phase of the regenerated carrier, when the regenerated carrier and the regenerated clock pulses have the opposite phases.
Patent GB-789997-A (GB)
Title: Improvements in or relating to ready-tied bows
Inventor: ISAACS TERENCE MYER
IPC: A41D25/02
Filed: 1955-05-10
Abstract: 789,997. Ornamenting. PORTH TEXTILES, Ltd. June 29, 1956 [May 10, 1955], No. 13478/55. Drawings to Specification. Class 93 A ready-tied bow comprises two ends provided with adhesive for sticking the bow to a support such as the lid of a chocolate box. The two ends may be the ends of a ribbon, separate from the remainder of the bow, which holds the rest of the bow together, the bow itself comprising a ribbon folded to give two loops and two ends. Alternatively, the bow may consist of two pieces of ribbon tied together and folded so as to provide two loops and four ends. two of the ends then being coated with adhesive. The adhesive used may be heat responsive or pressure responsive, and the ends may either coated or impregnated. The bow may be applied to an article in such a way that the adhesive-coated ends are concealed by the remainder of the bow.
Patent GB-795873-A (GB)
Title: Improvements in or relating to junction boxes and the like
IPC: A47B47/03
Filed: 1955-05-10
Abstract: 795,873. Cabinets. WOLFF, H. Aug. 8, 1956 [May 10, 1955], No. 13505/55. Class 52(1) A junction box or cabinet for housing electrical equipment &c. has an internal frame 1 for the mounting of the equipment a rear half-casing 8 and front half-casing 9 secured together by nuts and bolts passing through flanges 10, 11 and 12, 13 and a cover 19 having internal abutments 20 which seat on the side walls.
Patent GB-356143-A (GB)
Title: Improvements in and connected with parasols or umbrellas
IPC: A45B15/00
Filed: 1930-05-02
Abstract: 356,143. Umbrellas &c. EATON, T., 78, The Crescent, Northwich, Cheshire. May 2, 1930, No. 13533. [Class 134.] In umbrellas and parasols having removable covers, the lower edge of a cover 2 at the parts where the seams come has attached to it annular metal eyelets between outer and inner parts 9, 10, whereof the material is gripped, and the eyelets are adapted to fit over tip devices 8 on ribs 5 and to be held as regards upward movement by collars 11. The upper part of the cover is secured to a neck ring 4 fitting over the stem and consisting of outer and inner members 4x, 4xx, coned or tapered and engaging one another frictionally at their upper ends and gripping the cover 2 between their lower parts. The neck ring 4 is made a loose fit on the stem so as to facilitate drainage and prevent rotting of the cover and frame. The upper end of the inner member 4xx may project and be pressed down to retain the outer member 4x. The members 4x, 4xx may be corrugated and their lower edges turned up or down away from the cover. The cover may also be attached to the frame by stitching or the like at points between the neck ring and the tip devices. In attaching the eyelets, the material of the cover may extend round half of the eyelet circle. The eyelets may be turned inwards so that they are hidden when the umbrella is open, or they may be left visible.
Patent GB-427269-A (GB)
Title: Improvements in or relating to machines for treating hides, skins, leather and the like
IPC: C14B1/10
Filed: 1934-05-04
Abstract: 427,269. Leather-working machines. TURNER TANNING MACHINERY CO., Ltd., and SCHETTLER, G. A., Bramley, near Leeds. May 4, 1934, No. 13549. [Class 76] Relates to machines for performing shaving &c. operations on hides, leather, &c. of the type in which the hide &c. is pressed against a rotary cutter 10 by a bed roller 4 mounted upon a frame 3 which is pivoted at 2, the gap between the cutter 10 and the roller 4 being determined by adjustable stops 5 and the pressure exerted by a spring 14 being adjustable, e.g. by a nut 18. According to the invention, both these adjustments are effected simultaneously by a single operating means. The adjustable stops 5 are in the form of screws which abut against fixed projections 11 on the machine frame and are moved axially by nuts 6 which are turned by worms 7 on a transverse shaft 8. The lower end of the frame 3 is urged to the left (Fig. 2) by a spring 14 acting through toggle links 15, 19 which are straightened, so as to advance the roller 4, by a treadle lever 13, 28. The initial tension of the spring 14 is adjusted by a nut 31 and the pressure which it exerts under working conditions is adjusted by a long nut 18 mounted in the frame 3 and furnished with a worm wheel 36. A shaft 37, fitted with a hand-wheel 43, is arranged to operate the shaft 8 through bevel gear 35, 41 and the nut 18 by a worm 42. Movement of the hand wheel 43 thus simultaneously adjusts the limiting stop 5 and the working pressure of the spring 14. In order that the two adjustments may, if desired, be made independently, the bevel wheel 35 is arranged so that it can be moved along the shaft 8 out of engagement with the bevel wheel 41. The shaft 8 can then be rotated by a handle 59 and locked by a nut 65. In a modification, the shafts 8, 37 and gears 35, &c. are replaced by a single sprocket chain engaging the nuts 6, 18. Specification 427,189 is referred to.
Patent GB-786949-A (GB)
Title: Improvements in or relating to head coverings
IPC: A42B1/20
Filed: 1956-05-03
Abstract: 786,949. Hats. KANGOL WEAR, Ltd. and GREIG, E. May 3, 1956, No. 13630/56. Class 63 A head covering consisting of a single piece of material 10 which is, for example, knitted, shrunk and felted in known manner, is formed with alternating pleats 11 and 12 which extend radially from the middle portion of the head covering, preferably to the head band 14 (Fig. 3 not shown). Fig. 1, and Fig. 2, showing the section at II-II, illustrate how the pleats are formed alternately on the inside and the outside of the fabric and are stitched through with a single line of stitching 13. The pleats may be straight or curved and of equal or of different lengths. In the example described the pleats are straight and the external ones 12 extend nearer to the middle than the internal ones 11.
Patent GB-1078346-A (GB)
Title: Filter circuit
IPC: G06V30/164
Filed: 1965-03-31
Abstract: 1,078,346. Automatic character reader. RADIO CORPORATION OF AMERICA. March 31, 1965 [April 28, 1964], No. 13652/65. Heading G4R. In an automatic character reader the characters are scanned on a series of parallel scan lines at 14, and corresponding video signals obtained, the signals are delayed at 16 by the time of one scan and true and inverted forms of the signals are compared in gates 18 and 24 so that simultaneous blacks cause an output from gate 18, setting a flip-flop 26 and simultaneous whites cause an output from gate 24, resetting flipflop 26. The occurrence of a spurious mark which is too small to be cut by two scans fails to set the flip-flop. Similarly a small gap in the black of the character fails to reset the flip-flop and is ignored. In another form Nor gates are used instead of And gates.
Patent GB-1419403-A (GB)
IPC: F02K1/76
Filed: 1973-03-21
Abstract: 1419403 Deflecting propulsion jets JOSEPH LUCAS (INDUSTRIES) Ltd 1 April 1974 [21 March 1973] 13697/73 Heading B7G A thrust reversal system for a jet aircraft engine comprises thrust reverser buckets 10 movable between stowed (Fig. 1A) and deployed (Fig. 6A, not shown) positions, an air motor 18 operable by the pilot to move the buckets, means for automatically decelerating the motor when the buckets approach both the stowed and deployed positions, a locking mechanism 15, 16, 17 for locking the buckets in the stowed position and a flow control valve 36 for controlling the direction of flow of operating air to the motor, the flow control valve 36 upon movement of the pilot's control to deploy, initially occupying a position corresponding to movement of the motor 18 in the direction to stow the buckets and, after release of the locking mechanism 15, 16, 17 moving to its alternative position to enable the motor to move the buckets to the deployed position. The buckets 10 are carried by pivoted links 11, 12 the links 11 being powered through links 27 by a screw jack 25, 26 driven through gearing 24A, 24B, shaft 23, gearing 22 and a flexible drive 21 from the air motor 18. The valve 36 is driven by a piston 53 through a differential gearing 55 which has a feedback input 156, 56 from the motor rotors 19. Compressed air from the engine compressor passes to a duct 28 from which it is admitted to valve 36 by a spring loaded adjustable valve 29. During normal flight a pilot's control lever 37 is in the position shown and for thrust reversal it is moved back to close switches 38, 39. Switch 38 energizes a solenoid 40 which controls spring loaded valves 41, 42 and switch 39 acts through a switch 44 closed by undercarriage compression to energize a solenoid 43 which opens a valve 33 thereby reducing air pressure in a space 31 above valve 29 which is then free to be opened against the loading of spring 35 by pressure air from duct 28. Both switches 38, 39 may be de-activated by a flame-out switch 60. Opening of valve 29 passes pressure air through duct 46, valve 41 and duet 41B to the underside of a piston 47 so causing this piston and an associated piston 48 to rise. Piston 48 operates through a lever 49 and flexible drive 50 to release bucket locking mechanism 15-17 and also shifts a valve 34. Piston 47 raises a valve 52 and when valves 34 and 52 have moved to given positions (Fig. 4, not shown) a path to exhaust is provided from the space above piston 53 thereby allowing piston 53 to move up and operate valve 36.
Patent GB-650183-A (GB)
Title: Improvements in or relating to yarn package mountings
IPC: B65H54/54
Filed: 1948-05-20
Abstract: 650,183. Bobbin holders for textile winding &c. machines. BRITISH CELANESE, Ltd. May 20, 1948, No. 13715. Convention date, May 28, 1947. [Class 120(ii)] An arbor for supporting a yarn package comprises a tubular body 6 having longitudinal slots 13 through which bars 14 extend radially, the bars being resiliently mounted in grooves 9 in end spiders 8. Springs 12 contained in recesses 11 at the base of each groove may be employed to urge the bars 14 through the slots. Strips 17 of felt, or other resilient material, may be held in slots in the arms 14. Outward movement of the bars is limited by projections 15. Trunnion pins 21, 27 mounted in the spiders 8 hold in position end discs 19, 26, which may be made of any suitable material, such as hard compressed fibre.