baber/WOPTO huggingface dataset:
Patent GB-605955-A (GB)
Title: Improvements in or relating to gyroscopic systems
IPC: G01C21/18
Filed: 1945-08-24
Abstract: 605,955. Automatic - control systems. BARNES, J. W., and PHILPOT, J. ST. L. Aug. 24, 1945, No. 21689. [Class 38 (iv)] [Also in Group XX] Alignment.-A platform 3 is caused to follow a gyroscope 1 so as to define a horizontal plane when the gyro is erected into a position in which its axis is tilted slightly forward in the direction of travel and precessing torques are applied to the gyroscope by means responsive to accelerations parallel to the plane of the platform. As shown, weighted levers 12, 13, pivoted on vertical axes 17, 17<SP>1</SP>, on the platform 3 and connected by forked arms 15, 15<SP>1</SP>, to an axial,pin 19 on the gyro casing, apply torques to the gyro 1 upon tilt of the platform 3 or upon the occurrence of lateral or fore-andaft accelerations. These torques serve respectively to erect the gyro to the desired inclined position and to adjust the angle of inclination in accordance with changes in speed of the craft. The motors 9, 8, for adjusting the position of the platform 3 are controlled by transformer pick-offs 21*, 21, fixed on the platform and co-operating with armatures 20, 20<SP>1</SP>, on the levers 12, 13. In order that the platform 3 shall be maintained horizontal, notwithstanding changes in tilt of the gyro due to accelerations, the transformer pick-offs 21*, 21, are fed with voltages proportional respectively to forward speed, provided by a generator 36-38 driven by an air milage unit such as is described in Specification 565,214, [Group XIX], and to lateral speed, provided by a potentiometer 41 with a contact 40 moved by a lateral accelerometer 39. Alternatively the pick-off devices 21*, 21, may be moved according to the airspeed or sideslip respectively.
Patent GB-660456-A (GB)
Title: Improvements in or relating to ventilators of the louvre type
Inventor: JOHNSON HENRY CHARLES
IPC: F24F13/15
Filed: 1948-08-17
Abstract: 660,456. Louvre ventilator; windows. JOHNSON BROS., Ltd., G., and JOHNSON. H. C. Aug. 17, 1949 [Aug. 17, 1948; Feb. 16, 1949]. Nos. 21694/48 and 4249/49. Classes 20(iii) and 137 A louvre venti- 1 a t o r comprises opaque or transparent slats 1 which are pivoted to vertical weather fillets 6 so that. when the knob 11 is rotated by hand, the slats 1 swing in unison to open or close the ventilator. The slats 1 are mounted in channelshaped holders 2, the channel walls being cut away at one side at the top, and at the other side at the bottom, to permit adjacent slats to make contact with one another when the ventilator is closed. The holders 2 are pivoted in the mounting member 3. The ends of the pivots. apart from that of the lowermost slat may carry enlarged heads tc prevent withdrawal from the mounting members. Flanges 15 of the holders 2, are pivotally connected at 7 to a flange of the corresponding weather fillet 6, the other flange of fillet 6 being ribbed to provide a weatherproof closure with the member 3. The lowermost slat is mounted on a trunnion 8, and is adjusted by rotation of the knob 11 and the screwed shaft 10 which extends into a box-like bracket 9. A nut 12 is moved along the shaft 10 and swings a slotted link 13, pivoted to the nut 12 about an axis parallel to the trunnion 8. A rib 14 formed on the trunnion adjacent the bottom of the bracket 9 mates with the slot in the link 13, so that the lowermost slat is swung with the link. According to the earlier Provisional Specification, the lowest slat is swung by a worm gearing.
Patent GB-736089-A (GB)
Title: Improvements relating to rotors for axial-flow compressors, turbines and like machines
Inventor: KENT NELSON HECTOR
IPC: F01D5/06
Filed: 1952-08-28
Abstract: 736,089. Turbine and compressor rotors. ROLLS-ROYCE, Ltd. Aug. 27, 1953 [Aug. 28, 1952], No. 21697/52. Class 110 (3). [Also in Group XXII] A rotor for an axial-flow compressor or turbine comprises blades 18 welded to the outer surface of a metal shell 17, the outer surface also affording the inner wall of the working fluid passage, and a disc 16 brazed at its perpheral surface to the inner surface of the shell. In the compressor rotor shown, the discs 16 and the co-operating machined surfaces 17a of the shell are located in the plane of each row of blading, and the shell may, as shown, be of reduced thickness between the surfaces 17a. Grooves 20 in the discs are filled with brazing metal. Before brazing, the discs 16 are fastened to the shell 17 by dowel pins (not shown). Either before or after the brazing operation, the blades 18 are attached by electrical resistance butt-welding to projections on the shell 17. The projections, which facilitate the transfer of heat from the weld, are formed by machining circumferential grooves 19 in the outer surface of the shell 17, and may be proud of the outer surface instead of flush with it. Each end disc 16 is formed with stub-shafts 16a ;  alternatively, a shaft may be provided through the rotor assembly. In a single-stage turbine rotor, the projections are formed on the blades, the shell in this case being of uniform thickness. While the blades are being welded to the shell, the latter is supported on a mandrel of brass or other material of high thermal conductivity. After removal of the mandrel, the rotor disc is brazed to the shell. In both embodiments, the rotor may be of low-carbon steel. Alternatively, in the case of the turbine rotor, the disc may be ferritic and the shell and blades may be of a heat-resistant material such as a nickel-chrome alloy. Suitable brazing alloys are described in Specification 646,899, [Group II]. Specification 704,609 also is referred to.
Patent GB-729196-A (GB)
Title: Improvements in or relating to roller mills
IPC: B02C4/38
Filed: 1953-08-06
Abstract: 729,196. Roller mills. MIAG MUHLENBAU UND INDUSTRIE GES. Aug. 6, 1953 [Aug. 16, 1952], No. 21744/53. Addition to 699,001. Class 59. In a roller mill with exchangeable fixed and loose rollers and with means for adjusting the loose roller with respect to the fixed roller, which adjusting means are located behind the rollers if viewed from the inspection door at the front of the mill, as claimed in the parent Specification, each bearing for the loose roller is provided with a pivotally-mounted swing lever 6 for adjusting the bearing, and the free end of the lever 6 is operatively connected to an adjusting shaft 11 through a rod and spring means in such a manner that it is free to move against the spring means only in the direction parting the rollers. The rod and spring means comprises a spring pot 9 pivotally mounted on the shaft 11, a rod 16 which is pivoted at one end to the free end of the lever 6 by means of a ball and socket connection 8, 17, and is provided at its other end with a flange bearing against the upper end wall of the pot 9, and a spring 14 disposed between the flange and the other end wall of the pot 9. The pot 9 and rod 16 each consist of two or more parts which are screwed together.
Patent GB-614719-A (GB)
Title: Improvements in and relating to elevating trucks
IPC: B62B3/065
Filed: 1946-07-22
Abstract: 614,719. Trucks with elevating platforms. HUGHES, R. M. (Lewis-Shepard Co.). July 22, 1946, No. 21817. [Class 108 (i)] An elevating truck comprises a head 2 supported by wheels 11 steered by a column 14, the head being fixed to a transverse tubular member or bolster 4 provided with bearings 31 for supporting an axle 30, the ends of which carry links 25, the other ends of the links being pivoted to the sides 20 of a standard to which the platform 17 is connected. A central tubular girder 32 is fixed to the bolster 4, and may be offset at the other end, which is connected to the wheels 9 by a bearing 7 through which passes a removable sleeve 37 which may be removed and replaced by one of greater length when wheels of less width than the wheels 9 are to be used. The wheels 9 are mounted on an axle 8 having a head 45 at one end and a nut 46 at the other and are supported by lever arms 39 ... 42 on a transverse beam 38 provided with a rod 48 bearing on an angled strip 49 fixed on the underside of the platform to act as a fulcrum. The ends of the arms 39 ... 42 are bored to receive the head 45, sleeve 37 and nut 46, the bores being split and tightened by set screws. A hydraulic cylinder between the head 2 and standard 22 lifts the platform clockwise about the axles 30 and 8 by means of the links 25 and 39 ... 42.
Patent GB-189189-A (GB)
Title: Improvements in or relating to stone breaking and crushing machines
IPC: B02C1/04
Filed: 1921-08-18
Abstract: 189,189. Mason, J. H. Aug. 18, 1921. Crushers with vibrating jaws.-Relates to stone breaking and crushing machines of the kind described in Specification 23690/05. According to the invention, the toggle plate 1<b> is downwardly inclined from the swinging jaw 3 to the toggle block 2<a>, the fulcrum 5 being situated below a line a at right-angles to a line joining the driving-shaft c and the point of contact of the toggle with the swinging jaw. The swinging jaw is thus caused to move towards the fast jaw on the downward stroke. Reference has been directed by the Comptroller to Specifications 2340/88 and 18833/01.
Patent GB-1520207-A (GB)
Title: Telescopic aerial
IPC: H01Q1/10
Filed: 1977-05-25
Abstract: 1520207 Aerials INDESIT INDUSTRIA ELETTRODOMESTICI ITALIANA SpA 25 May 1977 [9 June 1976] 22003/77 Heading H4A [Also in Division B3] A telescopic aerial has located between each pair of elements 4, 4' a split resilient sleeve 5. Each element has at one end an inwardly directed lip 6, 6<SP>1</SP> and at the other an increased diameter portion 7, 7', maximum extension being limited by engagement between the sleeve and the lip 6' of element 4', and between the sleeve and a shoulder at the increased diameter portion of the other element 4. The portions 7, 7' are provided in the course of manufacture with inwardly directed tabs 9, 9' which are bent into place after the elements and sleeves have been assembled together, and which limit the inward movement of the elements.
Patent GB-152484-A (GB)
Title: Improvements in or relating to plant for utilising wave power
IPC: F03B13/18
Filed: 1919-09-06
Abstract: 152,484. Hansen, E. J. Sept. 6, 1919. Wave energy, utilizing.-Comprises one or more rows of floats 17, Figs. 1, 2, and 4, connected by chains 18, Fig. 2, and anchored, in which each float is suspended by a rope or chain coiled on the smaller drum of a differential pulley 14. From the larger drum 9 of the pulley a rope passes over a pulley 11, so fixed on the power shaft 13 that it turns the shaft when the float falls but runs free in the reverse direction, to a weight 12. One power shaft is common to two rows of floats. In a modification, the rope carrying the weight is passed over an idle pulley, and the differential pulley is connected by open and crossed belts to two clutched pulleys on the power shaft, so that the latter is rotated in the same direction by both up and down movements of the float.
Patent GB-265089-A (GB)
Title: A new or improved fastening for collapsible and other boxes and structures
IPC: F16B5/06
Filed: 1926-09-08
Abstract: 265,089. Fox, S. H., and Hobson, T. J. Sept. 8, 1926. No Patent granted (Sealing fee not paid). Stud-and-slot fastenings for collapsable boxes comprise a plate with keyhole or like slots with converging sides engaging studs so that on forcing the plate in a direction parallel to the slots it wedges the parts closely together. The plate 3 may have an angle form, Fig. 2, and the slots 5 may be open-ended. Fig. 4 shows an angleplate with two series of keyhole slots 7. Fig. 6 shows a flat plate 8 with open-ended slots 9 for connecting two members 11 at right-angles to each other.
Patent GB-390701-A (GB)
Title: Improvements in and relating to posts or supports, and sockets therefor
IPC: A63B71/02
Filed: 1932-08-06
Abstract: 390,701. Mounting posts in sockets. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, WRIGHT, J. G., Fort Dunlop, and HIPWOOD, J., 48, Camden Street, both in Birmingham. Aug. 6, 1932, No. 22113. [Class 45.] An adapter for use in connecting hollow tennis posts to sockets, has means to support the post and also means to grip the socket ; the gripping means may be adjustable. The adapter plate 3 has a spigot portion 4 to support the post 2 and is provided with an aperture through which passes the bolt 5 of a wedgegripping member 6 adapted to coact with another loose wedge member 7 and press it against the side of the socket recess 9 when the bolt 5 is raised. To increase the gripping effect the top surface of the loose wedge member may be doubly inclined and in order that the pull of the net may be effectively resisted, the post is tilted outwardly by means of thickening 12 of the base of the plate 3. To increase the range for different sized sockets, removable packing pieces may be used on the loose wedge member. In a non-adjustable type, Fig. 6, the inclined wedge 11 of the central member is adapted to engage the socket directly.
Patent GB-747462-A (GB)
Title: Shuttle mechanism for sewing machines
IPC: D05B57/14
Filed: 1954-07-29
Abstract: 747,462. Sewing-machines. SINGER MANUFACTURING CO. July 29, 1954 [Aug. 27, 1953], No. 22139/54. Class 112. An oscillating shuttle 110 has a peripheral bearing rib 109, the leading end of which is transversely inclined to form the loop-seizing beak 124 and the trailing end of which is bevelled to form the heel 125 of the shuttle. The rib is disposed in a discontinuous circular raceway provided in a shuttle housing, the raceway having a side wall 91 and a bottom wall 92 formed in the body 86 of the housing, and the other side wall of the raceway being provided by a boss 93 formed on a cap 94 which is hinged to the body 86. The cap is held against the body by a pair of spring clips 102, and the hinge comprises a spring 99 which biases the hinge pin 100 towards the body to assist in holding the cap against the latter. The gap in the raceway is closed by a bridgepiece 122 which is secured to the body by screws 121, and is formed with a narrow elongated needle-aperture 123 extending transversely across the raceway. The needle thread forms an angle at the respective edges of the aperture 123 in the loopseizing and loop-shedding positions of the shuttle, and it is stated that this angle serves to take up slack thread and thereby enable a linktype thread take-up to compare in efficiency with a take-up of the cam type. The side wall 91 and bottom wall 92 are inclined to one another as at 126, 127 at one end of the gap to meet in a point 128 with which the beak 124 initially makes contact after it has crossed the gap. It is stated that the inclined sides 126, 127 provide increased bearing surface for smoother and quieter operation, and that the provision of the point 128 for initial contact with the shuttle reduces the possibilities of collision and also reduces shock to the shuttle. A bobbin case 111 is held stationary within the shuttle by means of an arm 112 which engages in a notch 113 formed in the cap 94. Oscillatory motion is imparted to the shuttle by means of a shuttle-driver 114 carried at the end of an oscillating shaft.
Patent GB-239534-A (GB)
Title: Improved current conductors for high frequency purposes
IPC: H01F17/04
Filed: 1925-09-04
Abstract: 239,534. Telefunken Ges. f³r Drahtlose Telegraphie. Sept. 5, 1924, [Convention date]. Drawings to Specification. Inductances.-Conductors for frequency transformers, choke coils, &c., are loaded by coating with iron. The iron may be applied by spraying &c., but is preferably wound on as very fine wire, which may be insulated. It may be coated with chromium &c. as a protection against rust. The conductor may be hollow for circulating cooling- liquid.
Patent GB-805099-A (GB)
Title: Improvements in or relating to mineral separation
IPC: B03B5/44
Filed: 1957-07-13
Abstract: 805,099. Washing granular materials. TROMP, K. F. July 13, 1957, No. 22266/57. Class 82(2) Magnetically susceptible materials are recovered 'from the rinsing waters of a heavy medium separation plant by thickening the rinsing water, delivering the thickened material to a magnetic separator and discharging part only of the tailings from the separator as effluent, the remaining part being returned to the thickener. Material rinsed off the screens of the heavy liquid separator 1 is passed via lines 11a to a vessel 11 and then pumped to a thickener 12. The supernatural liquid is used (lines 9) for rinsing purposes. The thickened suspension is pumped to a magnetic separator 15 and magnetic material is returned to the circuit by line 23. The tailings of the separator are divided by weir 18 acting in conjunction with a restriction valve 19, part of the flow being rejected at 21, the remainder returning to the thickener at 22. If desired a screen 16 is used to remove all the large material from the return flow circuit. Valve 19 can be varied in accordance with the density discharged therefrom e.g. by the devices disclosed in Specification 677,178.
Patent GB-1458983-A (GB)
Title: Flat-bed knitting machines
IPC: D04B35/18
Filed: 1973-05-10
Abstract: 1458983 Knitting machines COURTAULDS Ltd 9 May 1974 [10 May 1973] 22311/73 Heading D1C A V-bed knitting machine includes one or more loop hold-down elements 10, 11 on a carrier 8 which is mounted by brackets 12, 13 on bridge members 6, 7 connecting the cam 'boxes 5 so as to be displaced upwardly, when one of the elements 10, 11 encounters a needle which has not been lowered, to prevent damaige and to trip a microsiwitch 14 or 15 which gives an audible or visible signal and/or stops the machine. The carrier is provided at each end with a boss 31 which is pivotally mounted about a vertical axis, in a recess 26 of the associated bracket 12, 13. The boss 31 compnises sleeves 33, 34 in screw threaded engagement to provide for height adjustment of the carrier. The carrier is connected to each boss 31 via a bifurcated member 27 to which the carrier is coupled by a spindle 42 accommodated in vertically extending holes in the legs of member 27. The left hand end of the carrier (Fig. 2a) is also coupled to member 27 by a pivotal link 45 while the right hand end rests on a roller on the associated member 27. The right hand bracket 13 comprises two parts relatively pivotal about an axis parallel to the carrier. The microswitches are carried by a rod mounted either on the fixed parts of brackets 12, 13 or on the members 27 and are tripped by members on the spindles 42. The carrier is urged downwardly by gravity and, optionally, by light springs acting on spindles 42.
Patent GB-301108-A (GB)
Title: Improvements relating to dog racing apparatus
IPC: A63K1/02
Filed: 1927-08-26
Abstract: 301,108. Coleman, E. A. Aug. 26, 1927. Dog-racing apparatus.-A lure for dog-racing purposes has sound-emitting means to simulate a live animal. The dummy hare 1 has an entrance and exit 2 and 3, the current of air thus produced driving an air propeller 5, shaft 4, a worm on the latter geared to a cross-shaft 10, wheels 11 and 13 and a rod 15 which operates a bellows 12 for emitting squeals. The wheel 11 is also used, through members 8 and 9, to move the legs 6 and tail 7. In modifications (1) the wheel 13 is driven directly from a worm on the shaft 4, and (2) the air propeller is dispensed with and the wheel 13 is driven from the running wheel which supports the hare on the track. At starting, until the air current is sufficient to rotate the propeller 5 the wheel 11 is driven from clock. work 16 through a free. wheel device 19, 20. In a further modification, Fig. 4, air passing up the tube actuates sirens 26, the inner end of the tube being intermittently closed by shutters 28, which are normally opened by springs and the current of air and are closed by the arms 34 in one direction of movement. These arms: are actuated by link 37, wheel 13, worm 21, shaft 4, and air screw 5.
Patent GB-756272-A (GB)
Title: Improvements in or relating to burners
IPC: F23D5/00
Filed: 1954-08-03
Abstract: 756,272. Vapour burners. ATELIERS DE DECOUPAGE D'EMBOUTISSAGE ET D' ESTAMPAGE DES METAUX. Aug. 3, 1954 [Aug. 14, 1953], No. 22479/54. Class 75(1). In a pot-shaped burner comprising a cylinder provided with primary and secondary air apertures in its side wall and with a ring 7 mounted internally on the side wall between its lower closed end and its upper open end so as to divide the cylinder into two chambers which are in communication through the relatively large opening 8 in the ring, two rows of primary air apertures are provided between the bottom of the cylinder and the ring the axes of the apertures being in axial planes of the cylinder but the apertures 9 of the lower row being directed towards the bottom of the cylinder and the apertures 10 of the upper row being directed towards the ring, and another .row of primary air apertures 11 is provided between the ring and secondary air apertures 12 near the open end of the cylinder. The axes of the primary air apertures 11 are directed perpendicularly to the axis of the cylinder. The axes of the secondary air apertures 12 are inclined upwardly and inwardly in axial planes of the cylinder. The ring 7 may be flat or conical. An annular cover 5 rests on a projection 4 on the inside of the top of the cylinder.
Patent GB-249018-A (GB)
Title: Improvements in differential fluid-pressure gauges
IPC: G01L9/00
Filed: 1925-09-09
Abstract: 249,018. British Thomson-Houston Co., Ltd., (General Electric Co.). Sept. 9, 1925. Liquid-level pressure-gauges. - Relates to differential gauges of the type in which the movement of the indicating liquid effects a corresponding variation in an electric circuit including a suitable measuring instrument and consists in providing a tube for the liquid of non-uniform crosssection at different points along its length so that the deflection of the electric measuring instrument is less for a predetermined range than for pressures outside the range. A casing 3 closed by a cover 4 is supported by a tube 2 on a pedestal 1. Mounted inside the casing is a transformer core 5 comprising three legs, the outer two of which are mounted in grooves 6. On the middle leg is arranged a primary winding 7 embedded in insulating material 7<a>, the bottom end of the winding being grounded at the point 8 of the casing, while the other end after passing through the cover and through a coil 10, is grounded to the casing at the point 11. The winding 10 forms the secondary of a step-down transformer, the primary 12 of which is connected by leads 13, 14 to a source of alternating current of constant potential. The casing 3, together with a pipe 16, a wider pipe 17 and a narrow pipe 18 open at the top to the atmosphere, form a U-tube which is filled with mercury to the level of the bottom of the middle leg of the core 5. The mercury ring 19 around this middle leg forms a closed secondary winding of a single turn for the transformer comprising the core 5 and winding 7, the resistance of which varies with the depth of the mercury ring. In use, the pipe 22 is connected to the chamber in which the vacuum is to be measured and the mercury rises in the casing 3, the vacuum being taken from the reading of the indicating and recording ammeters 20, 21 which may be calibrated in inches of mercury vacuum. The length of the pipes should be such that when the mercury is in zero position a column of mercury about thirty inches high will be established in the pipe sections 17, 18. To use the scale mainly for the higher values of the vacuum the pipes are constructed of different diameters so that the deflection in pipe 18 scarcely affects the reading of the instruments. Specifications 24452/12 and 214,632 are referred to.