baber/WOPTO huggingface dataset:
Patent GB-1145065-A (GB)
Title: Improvements relating to the forming of abrasive wheels
IPC: B24D18/00
Filed: 1966-04-14
Abstract: 1,145,065. Forming abrasive wheels. CONTINENTAL CAN CO. Inc. 14 April, 1966 [15 April, 1965], No. 16310/66. Heading B3D. A method of forming an abrasive wheel comprises rotating the abrasive wheel 48, positioning a form wheel 36<SP>1</SP> adjacent the abrasive wheel but out of direct engagement therewith, and applying an eroding fluid 60, such as a lapping compound, to thereby form the abrasive wheel in accordance with the form wheel. In prior steps to the actual forming of the abrasive wheel, a grinding wheel of aluminium oxide or silicon carbide is formed to the profile required on the abrasive wheel, such as a diamond wheel, by a pantograph mechanism which moves a tool according to a profile on a template. The shaped grinding wheel is used to produce a profile complementary to the profile required to be formed on the abrasive wheel on the form wheel which may be of cast iron, both the grinding wheel and form wheel being rotated, the form wheel by a belt drive. Thereafter the grinding wheel is replaced by the abrasive wheel 48 to be formed and the form wheel 36<SP>1</SP> is disposed a small distance from the abrasive wheel and the drive thereto disconnected. A lapping compound 60 consisting of silicon carbide grit in a fluid is applied by a brush or pipe to the space between the wheels and transmits rotation of the abrasive wheel to the form wheel, the compound acting on the resin or metal bonding of the abrasive wheel so that the diamonds 52<SP>1</SP> drop from the abrasive wheel without being crushed or rounded. The formed abrasive wheel is then checked by engagement with a piece of chalk, the profile formed on the chalk being examined in an optical comparator. The grit of the abrasive wheel may be between 80 and 320 and first a rough lapping compound having a range between 100 and 220 may be applied and then a finish lapping compound having a range between 220 and 320 may be applied.
Patent GB-957309-A (GB)
Title: Improvements in collapsible wheel chairs
IPC: A61G5/08
Filed: 1960-05-09
Abstract: 957,309. Collapsible pushchairs. W. W. H. BARRETT. Jan. 12, 1961 [May 9, 1960], No. 16379/60. Heading B7B. A collapsible pushchair has a seat A having a rear rail 1 to which is hinged the rear wheelsupporting frame B, and a front rail 2 to which the front frame C is hinged. The frame C being narrower than the frame B will nest inside the latter when the chair is collapsed by moving the frames B and C to lie beneath the seat. Stays 10, 19 are knuckle-jointed to allow collapsing. The wheels may be castoring or removable.
Patent GB-612694-A (GB)
Title: Improvements relating to the springing of seats, mattresses and the like
IPC: A47C7/34
Filed: 1946-05-30
Abstract: 612,694. Spring assemblies. LUSTY, W. K. May 30, 1946. No. 16502. [Class 52 (iv)] The lower turns of upholstery springs are secured to metal strips 9 by tongues 10 struck from the strips and bent'back over the part of the spring which is being secured into or towards the slots 12 left in the strips. The transverse strips 11 pass between the strips 9 and the overlying turn of the spring and are located by the tongues 10.
Patent GB-529666-A (GB)
Title: Improvements in or relating to the production and/or finishing of internal screw threads by a grinding operation
IPC: B24B19/02
Filed: 1939-06-06
Abstract: 529,666. Grinding internal threads. COVENTRY GAUGE & TOOL CO., Ltd., HARLEY, S. J. and WAINWRIGHT, J. E. June 6, 1939, No. 16537. [Class 60] Articles having a roughly formed internal thread that is to be rough or finish ground are located in correct position relatively to the grinding-wheel by means of a screwed plug k that loosely engages the threads. The work head b is stopped with an index line n in alignment with the zero line p of a graduated bush e mounted in an arm f pivoted to a slide g moving parallel to the machine axis. Locating stops i either alone or in conjunction with slip gauges determine the position of the arm in which the bush is concentric with the axis. The plug k is brought into contact with a stop l and the work a is turned into such position on the plug that when the work is held against an abutment m the plug can be rotated in the work to an equal extent on either side of the zero graduation as limited by the play in the threads. The work is then clamped in this position by means r and the plug is removed. The plug may be employed to locate the grinding wheel in position this being done by engaging the thread on the plug with the thread on the wheel on the opposite side to that on which grinding contact occurs.
Patent GB-720427-A (GB)
Title: Improvements in multiple valve units
IPC: F16K11/16
Filed: 1952-07-01
Abstract: 720,427. Manually-actuated valves. TINDALE, W. July 1, 1952 [July 4, 1951], No. 16582/52. Class 135. A multiple valve unit comprises a number of valves each in liquid connection with the others and adapted to be connected to its own tank and to a common connection to a pump, and each valve closure member is spring-loaded to a position closing-off the connection with its tank, but any selected valve can be unloaded to allow the pump suction to open the connection to the tank concerned. In an embodiment, two tanks are connected via separate inlets 8, Fig. 1, and valves 27A to a common outlet line 2 leading to a pump. Each valve 27A comprises a lift valve member provided with guiding webs 13 and urged towards its seat by a loading spring 22. The latter abuts against the inner surface of a cap 15 screwed into the valve body 4 and a cap-like member 24 loosely surrounding the inner end of a valve-actuating plunger 16 which is separate from the valve 27A. The material 18 of a gland packing for the plunger 16 is compressed by a spring 20. When a valve plunger is raised, the valve will be opened by the suction created by the pump. The plungers are raised by means of tappet arms 33 engaging discs 28 on the plungers, the tappet arms being arranged in staggered fashion around a rotary shaft 31 so that the valves can be opened selectively. Where opening means is provided for each valve separately, the rotary shaft 35, Fig. 2, can ride up and down in slots in the vertical arms of a yoke 37, and the tappet arms 39 can engage and ride on surface 40. As the arms 39 ride over the surfaces 40, the shaft 31 will be lifted, and the valve plunger 16, which is carried by the shaft, will be lifted also.
Patent GB-1491394-A (GB)
Title: Seal lubrication in a rotary fluid-machine
IPC: F16N1/00
Filed: 1976-04-23
Abstract: 1491394 Rotary positive-displacement fluidmachines CATERPILLAR TRACTOR CO 23 April 1976 [12 Sept 1975] 16657/76 Heading F1F In a machine that may be adapted to operate as an I.C. engine, a compressor, or a pump, a nutating rotor 20 with an annular flange 30 is mounted rotatively on an oblique portion 40 of a rotary power-output, or input, shaft 36 and has an internal gear 50 meshing with a fixed gear 52, and annular seals 24, 26, 32 and apex seals 34 are lubricated by way of slots 54, 56, 60, which contain porous inserts made of e.g. a sintered metal, and acting as wicks.
Patent GB-162960-A (GB)
Title: Improvements relating to lifting jacks for carriages
IPC: B66F1/00
Filed: 1920-06-21
Abstract: 162,960. F³rst, J. June 21, 1920. Addition to 145,475. Jacks.-The load-sustaining arm i described in the parent Specification is arranged to rest on a projection in of the base plate n instead of on the ground. A series of ratchet teeth is formed on the arm or projection by means of which the load is sustained in a number of positions.
Patent GB-385526-A (GB)
Title: Improvements in illuminating bodies
IPC: F21V3/00
Filed: 1932-06-13
Abstract: 385,526. Illuminant enclosures. SCHNEIDER, B., 30, Schillerstrasse, Eichwalde, near Berlin. June 13, 1932, No. 16731. Convention date, May 14. [Class 75 (ii).] A glass or other transparent or translucent enclosure for use with a suspended, pedestal, or bracket electric lamp comprises an inner tubular hollow body 1 which is open at one end to receive one or more electric lamp bulbs 4 and is surrounded by one or more outer hollow bodies 2 which are closed except for openings for the passage therethrough of the body 1, the bodies 2 being supported by means of one or more projections, such as a shoulder 3, arranged on the body 1 below the bodies 2. The body 1 may be cylindrical or conical and it may be adapted to allow light to pass into the bodies 2 which may be ornamented. The bodies 1, 2 may be of the same or different colour, whilst the bodies 2 may be of the same or different diameter or shape, they may be provided with horizontal, oblique, or vertical reflecting coatings 7, and their positions relative to the body 1 may be changed.
Patent GB-255058-A (GB)
Title: Improvements in electrodes for space current devices
IPC: H01J19/34
Filed: 1926-07-03
Abstract: 255,058. British Thomson - Houston Co., Ltd., (Assignees, of Mullaney, D. A.). July 8, 1925, [Convention date]. Vacuum tubes. - The anode of a thermionic valve or othar discharge tube consists of a seamless, hollow, cylindrical body 1 of nickel plastically formed into shape. Any process such as drawing, extruding, or spinning in which the metal is caused to flow cold, is suitable. The open end 3 of the anode is flared, and the inside of the flare is roughened and coated with copper to facilitate sealing to a glass wall 2. Intimate contact between the copper coating and nickel mav be obtained by heating in hydrogen to cause alloying of the metals. A nickel ring 4 is silver soldered to the anode and serves as a retaining collar for mounting the anode in a cooling casing. The anode may be vacuum fired to expel occluded gas. The cathode 6 and grid 7 are mounted on a re-entrant tube 10.
Patent GB-847032-A (GB)
Title: Electrical signal-limiting device
Inventor: DAVIDSON JOHN
IPC: H03G11/00
Filed: 1958-05-23
Abstract: 847,032. Automatic control systems. SPERRY GYROSCOPE CO. Ltd. May 23, 1958, No. 16741/58. Class 38 (4). Control signals are applied at terminals 1 to a servo system (not shown) connected to terminals 3. As applied to an aircraft servo system, when changing from manual to automatic control or when changing between altitude, speed or radio control, the signals applied to the servo system are initially short-circuited by rectifiers 4 which are rendered conducting by a D.C. source 7 when reversing switch 8 is in its right-hand position. By operating switch 8 to its left-hand position the subsequent rise of voltage of a condenser 5 due to charging through resistances 6 gradually increases the bias of rectifiers 4, and hence the maximum signal that can be applied to the servo system, so that the change-over takes place without shock.
Patent GB-1173554-A (GB)
Title: Improvements in and relating to Servomechanism Systems.
IPC: G05D1/00
Filed: 1968-04-08
Abstract: 1,173,554. Automatic control. LEAR SIEGLER Inc. April 8, 1968 [April 12, 1967], No.16762/68. Heading G3R. In a multi-channel redundant servosystem, detection of incorrect movement of an actuator in one of the channels causes a test signal to be applied to all of the channels so that the faulty channel, being identified as that which does not respond owing to the actuator being in a limiting position, is automatically disconnected. As shown, duplicated electrical control signals, e.g. in an aircraft automatic landing system, are respectively applied from generators 15, 20 through amplifiers 35, 40 to servomotors 45, 50, the mechanical outputs of which are combined by a differential gear 42 to operate a control surface 53. Positional follow-up signals are fed back from generators 75, 80 driven with the control surface, and rate feedback signals are derived from generators 55, 60 driven by the servomotors. If, due to a fault, one of the servomotors operates at an excessive rate, the other operates in the opposite direction and excessive difference between the rates is detected at 26 to cause operation of a relay K 1 . Contacts 28 of relay K 1 - then apply variable test signals from a generator 32 in opposite senses to the two channels and contacts 29 of relay K 1  connect rate circuits 56, 61 and detectors 57, 62 to detect which of the channels does not respond to the test signals owing to saturation under the fault condition. Logic circuits 63, 64, 69 then deenergize the appropriate servomotor, apply a brake 65 or 70, energize a self-latching relay K 2  or K 3  to disconnect the test signals, and operate an indicator 66 or 67. The faulty channel remains disabled until relays K 2 , K 3  are manually re-set. Cross coupling of feedbacks and use of hydraulic actuators is referred to.
Patent GB-624289-A (GB)
Title: Improvements in or relating to electric vibration motors
IPC: H02K7/06
Filed: 1947-06-29
Abstract: 624,289. Dynamo-electric machines. AKTIEBOLAGET VIBRO-BETONG. June 27, 1947, No. 16957. Convention date, June 29, 1945. [Class 35] An electric vibration motor which provides vibrations of higher frequency than the rotor speed, comprises a stator 3 rigidly secured to the motor frame 1, and a rotor 6 supported by a spherical bearing 8 located in the centre of the stator to permit a rotatable and swingable motion of the rotor. The lower end of the rotor, where the greater part of its mass is concentrated, is provided with a bushing 9 rolling on the surface of a spigot 10 secured to the motor frame (or vice versa) so as to provide planetary motion. The inner surface of the rotor is of double conical shape so that the flux places the rotor obliquely when the motor is started and gyratory motion commences immediately. The frequency of vibration may be varied by changing the ratio of the diameters of the bushing and pivot.
Patent GB-1356466-A (GB)
Title: Air conditioning apparatus
IPC: F24F3/00
Filed: 1971-05-25
Abstract: 1356466 Air conditioning units SVENSKA FLAKTFABRIKEN AB 25 May 1971 [29 May 1970] 16995/71 Heading F4V An air conditioning unit comprises a casing 1 with an air inlet 6 and outlet 7 and a bottom 2 and top 3 each formed by two Z-shaped beams 9 interconnected by tubes 10, each beam 9 having a vertical web 9a arranged inwardly of the plane of the adjacent side of the casing and an outwardly extending flange 9b, and a plate 11 having two of its opposing edges bent around the corresponding flanges 9b. At least one side 4b of the casing includes inspection doors 23. The unit includes an air cooling element, a humidifier, a fan and a filter. The unit supplies air to a system or ducts or directly to a room.
Patent GB-1019335-A (GB)
Title: Improvements in or relating to refractory bricks
Inventor: ANDERSON ARTHUR HUGH PRINGLE
IPC: F23M5/06
Filed: 1963-04-30
Abstract: 1,019,335. Refractory bricks. STEETLEY REFRACTORY BRICK CO. Ltd. April 29, 1964 [April 30, 1963], No. 17025/63. Heading F4B. A fired refractory brick 11 for a furnace suspended wall or roof is formed with a cavity 12, open through one end 7, having two walls 13 shaped in a wedging relation to one another to prevent a wedge-shaped metal insert 14 having surfaces 13<SP>1</SP> adapted to co-operate with the walls 13 when inserted in cavity 12, from moving towards the end 7 of the brick 11. The walls 13 make an angle of 6 to 20 degrees with each other. In use the bricks are at least partly supported by engaging the insert 14 over one of the arms of a supporting lug. In a modification Figs. 4 and 5 (not shown) the metal insert, may project above the surface of the end of the brick. Other refractory material may be inserted into the space within the metal insert. Reference has been directed by the Comptroller to Specification 927,632.
Patent GB-1047021-A (GB)
Title: Improvements in and relating to fluid flow control valve assemblies
Inventor: LEBOW RALPH HAROLD
IPC: F16K1/46
Filed: 1963-05-01
Abstract: 1,047,021. Valves. PARKER-HANNIFIN CORPORATION. May 1, 1963, No. 17074/63. Heading F2V. A valve closure 9 movable into and out of the open end of a fluid conducting member 6 has a flat-sided groove 18 and is of smaller diameter than the portion of the fluid conducting member which receives it so as to leave a continuous space 19, a flat-sided plastic sealing ring 21, having an outer edge portion which is inwardly compressed when the closure member is moved for the first time into the fluid conducting member to provide a thickened peripheral sealing portion, being tightly seated in the groove. The ring is preferably made from polyfluoroethylene and is clamped under a disc 13 bolted to a head 12.
Patent GB-1169842-A (GB)
Title: Prevailing-Torque Lock Screws
IPC: F16B39/30
Filed: 1968-04-09
Abstract: 1,169,842. Rolling threads. RUSSELL, BURDSALL & WARD BOLT & NUT CO. 9 April, 1968 [14 April, 1967], No. 17103/68. Heading B3M. [Also in Division F2] Thread rolling dies for forming a locking screw from a blank 20a comprise a stationary die 50 and a movable die 51. Milled grooves for forming the thread are provided on the faces of the dies and an insert 56 is fitted into a slot 55 in the die 51. The insert 56 has grooves 54a which are slightly offset with respect to the grooves on the face 57 of the die. A thread is therefore formed, some of the turns of which have offset segments which act as locking turns when the screw is inserted in a nut. A recess 62 is cut in the die 50 and the insert 56 is provided with a cut-away portion 58 to prevent disturbance of the locking segments when completing the thread rolling operation.
Patent GB-837836-A (GB)
Title: Pallet tiering frames
IPC: B65D19/38
Filed: 1958-05-29
Abstract: 837,836. Tiering frames for pallets. ARROWHEAD PRODUCTS Inc. May 29, 1958 [March 10, 1958], No. 17104/58. Class 78 (4). A unitary pallet tiering frame has three uprights 6, 6<SP>1</SP>, 7 detachably secured by feet 11 and 17 to the pallet The uprights are joined by a top member 9, 10, which may be of ring or triangular shape or of the shape illustrated, and may be formed from channel iron. The feet have depending tounges 13, 15, 21 engaged with the deck boards of a pallet by pushing the feet apart and then springing them on to the pallet. In an alternative construction similar to that shown the feet are formed so that the frame is secured to the pallet in a position turned through a right angle from that illustrated.
Patent GB-186400-A (GB)
Title: Improvements in machines for sticking needles, pins or the like
IPC: B65B15/02
Filed: 1921-06-23
Abstract: 186,400. Walker, R., and Blackford, J. June 23, 1921. Carding-apparatus. - Relates to machines for sticking needles, pins, &c. in a sheet of paper &c., wherein folds are formed in the paper and the paper held while needles &c. placed in grooves in an adjacent plate are forced therethrough by a sliding pusher, means movable with the pusher being provided for holding down the needles &c. in the grooves while being pushed. The paper 10 is folded and gripped by plates 6, 9 grooved at their meeting edges. The needles &c. are laid in corresponding grooves 14 in a spring- pressed plate 13. The pusher 17 is reciprocated in guides 22 by a lever 33, and carries a T-shaped needleretaining member 26 the cross-bar 29 of which is somewhat longer than the row of needles to be operated upon and has its under surface rounded. The member 26 is guided by pins 27, 28 and is actuated by a pin 25 engaging an adjustable slot 24 in a hookshaped lever 23 pivoted to a fixed stud 21. A pin 30 on the pusher 17 engages an inclined surface 31 on the lever 23 and so operates the member 26. The action is such that at the beginning of the forward motion the member 26 is carried along with the pusher 17, then is advanced at a greater speed than the pusher 17 till it comes over the needles lying on the plate 13, when the pin 30 becoming disengaged from the surface 31 no longer forces the member 26 forwards and the pin 25 having reached the end of the slot 24 prevents the member 26 from moving forwards further with the still advancing pusher, which now comes into engagement with the needles &c. and forces them through the paper 10.
Patent GB-319047-A (GB)
Title: Improvements in poppet or non-return valves
IPC: F16K15/06
Filed: 1928-06-14
Abstract: 319,047. Cubitt, P. H. June 14, 1928. Check or non-return valves.-A poppet or non- return valve comprises a stem c, h, a head b, and depending vanes g formed with the valve head, the vanes being curved somewhat spirrally, as shown, so as to give rotation during flow, even wear, and reseating in different positions. The lower part of the stem is guided in a spider guide e and the upper stem c in a detachably screwed cage-like spider guide d.
Patent GB-468310-A (GB)
Title: Improvements in collision braking devices for motor vehicles
IPC: B60R19/02
Filed: 1936-06-22
Abstract: 468,310. Vehicle collision guards. SAIGEN, B. June 22, 1936, No. 17303. [Class 103 (ii)] In a vehicle collision braking-device, backward movement of the bumper releases a locking device for a ratchet wheel 9 which normally holds a spring-pressed, toothed plunger 2 in a position in which the spring 8 is compressed, the subsequent movement of the plunger under the action of the spring effecting rotation of the brake and clutch pedals by means of a cross-pin 3 on the plunger engaging the pedals. As shown, backward movement of the bumper causes a Bowden wire or wires 14 to move a lever 10 so that the hook-shaped end of the lever releases the ratchet wheel. The lever 10 may also be rotated manually by the driver by depression of a rod 16 which acts on a lever 13 linked to the lever 10. The pin 3 slides in slots 4 in the plunger cylinder 1 to prevent rotation of the plunger. The device may be reset by manual rotation of the wheel 9. The Bowden wires 14 may be replaced by a hydraulic powertransmitting means or by an electromagnetic device.
Patent GB-895875-A (GB)
Title: Improvement in scraper conveyors
IPC: B65G19/28
Filed: 1960-05-17
Abstract: 895,875. Endless-belt conveyers. SOC. STEPHANOISE DE CONSTRUCTIONS MECHANIQUES. May 17, 1960 [June 3, 1959; April 22, 1960], No. 17336/60. Class 78 (1). Scraper elements 15 are secured to a central chain 11 by means of links 13 secured by threaded members 19, 19. The upper and lower runs of the chain 11 are guided in respective channels 10, 10, formed on the frame. The latter is provided in sections which may vary in length according to the degree of curvature required for the conveyer (Fig. 1, not shown). The channels 10, 10 may project slightly at each end of the frame, as shown at 10a. The scrapers 15 may be detached from the chain 11 by removing the members 19, 19 and turning the scraper as shown in dot-dash lines (Fig. 7). Scrapers 21 are carried by the chain 11 to prevent clogging.
Patent GB-111539-A (GB)
Title: Improvements in and relating to Processes for Manufacturing Strengthened Glass.
IPC: B32B17/08
Filed: 1916-12-02
Abstract: 111,539. Goldreich, S., McKerrow, C. A., and Splinterless Anti-Mist Glass Syndicate. Dec. 2, 1916. Transparent plates and sheets.-In the manufacture of strengthened glass comprising two sheets of glass and an interposed sheet of celluloid, the celluloid is treated not with a solvent of celluloid but with a softener thereof such as industrial spirit and is caused to adhere to the glass by the simultaneous action of heat and pressure. Specification 1790/10 is referred to.