baber/WOPTO huggingface dataset:
Patent GB-1055971-A (GB)
Title: Improvements in or relating to centrifuges
Inventor: HOLDEN EDWARD JOHN
IPC: H02P7/30
Filed: 1963-03-01
Abstract: 1,055,971. Control of A.C. motors. M.S.E. HOLDINGS Ltd. Feb. 6, 1964 [March 1, 1963], No. 8404/63. Heading H2J. [Also in Division G3] A centrifuge 1 is driven by an A.C. series motor 2 whose speed is controlled by adjustment of the firing angle of a pair of thyristors 10, 11 in its supply circuit, preferably triggered through secondary thyristors 14, 15. The triggering circuit comprises a transformer 19 across the output of a bridge, one arm of which is constituted by a saturable reactor 23 whose control winding is energized by the difference between a reference voltage and that from a tachogenerator 27. The comparison is made by two transistors connected as a long-tailed pair (Fig. 2, not shown). The tachogenerator voltage also operates, through a transistor, an overspeed trip relay. A voltage proportional to motor current is applied to a further transistor which conducts when the current is excessive and modifies the control signal to reduce motor speed and hence current. A switch 9 provides for dynamic braking.
Patent GB-878522-A (GB)
Title: Prevention of discoloration of salicylic acid and esters thereof
IPC: C07C51/50
Filed: 1958-03-17
Abstract: The invention comprises salicylic acid and esters thereof containing ortho-phosphoric acid.  The compounds are stabilised against discolouration, particularly that induced by iron, by adding to the compound.  For example, 85% phosphoric acid to give a phosphoric acid content in the preferred range of 40-100 p.p.m. Examples describe the treatment of methyl and phenyl salicylate and ethyl glycol mono- and di-salicylate.
Patent GB-574844-A (GB)
Title: Improvements in and relating to wave impulse generators
IPC: H03B11/08
Filed: 1943-05-27
Abstract: 574,844. Electron discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). May 27, 1943, No. 8528. [Classes 39 (i) and 40 (v)] An electronic discharge device producing high-frequency oscillations includes a photocathode which is illuminated intermittently to produce a periodic functioning of the discharge device. For example, a spark gap 30, 31 operated intermittently by a coil 35 and condenser 33 produces a powerful and very rapidly intermittent light which passes through a perforated tubular anode 12 and a grid 11 and falls on a cathode 10 composed of an antimony and caesium coating deposited on a nickel base. The emission of photo-electrons causes the valve to function in circuit 18 and high-frequency oscillations are emitted. This photo-cathode illuminated by a spark gap may also be used in a velocity modulation tube as described in Specification 544,850 or in a magnetron. Specification 293,107, [Class 39 (i)], also is referred to.
Patent GB-541100-A (GB)
Title: Improvements relating to fuel injection means for internal combustion engines
IPC: F02M57/02
Filed: 1940-05-11
Abstract: 541,100. Fuel-injection valves and pumps. C. A. V., Ltd., and MILLAR, D. May 11, 1940, No. 8534. [Class 7 (iii)] In fuel - injection means having the pump directly combined with the injection nozzle, a body part a has the fuel pump g, h arranged at one end and the injection nozzle f and valve 8 at the other end, and a distance piece d is arranged between the nozzle and a sleeve 2 which carries springs 4, one of which acts on the pump valve z, while the other acts on a stem 5 bearing on the valve 8. Leakage past the valve 8 and stem 5 is carried away by a port 13, groove 14 in the sleeve 2, and passage 15, and leakage past the pump plunger h is drained by a passage wand pipe connection x. Fuel is supplied to the nozzle by eccentrically arranged passages 6, 9, 10.
Patent GB-838473-A (GB)
Title: Side flexing shock mountings for jointing parts of furniture
IPC: A47C7/44
Filed: 1958-03-17
Abstract: 838,473. Resilient mountings. MILLER FURNITURE CO., H. March 17, 1958. [March 18, 1957], No.8535/58. Class 108(3) [Also in Group XIV] An arm rest 4 is connected to each of arms 5, 6 extending respectively from a chair seat 2 and back-rest 3 by a resilient mounting consisting of an elongated resilient block 10 adhesively secured to the arm 5 or 6 and in which is embedded an elongated plate 12 provided near each end with threaded holes 13, screws 7 taking through aligned holes in the arm-rest and the block 10 and into holes 13 to hold the arm-rests in place.
Patent GB-314108-A (GB)
Title: Improvements relating to inverted incandescent gas burners for lighting purposes
IPC: F23D14/30
Filed: 1928-03-21
Abstract: 314,108. Smith, F. March 21, 1928. Atmospheric gas burners. - In a single mantle inverted incandescent gas burner, of the kind provided with a flat cylindrical mixture-heating chamber a at the upper end of the burner nozzle f, a baffle plate g is fitted in close proximity to the flat base of the chamber to form between it and the base a space of uniform depth considerably less than that of the space above it, in order to force the mixture into close contact with the base. The chamber a, in the form shown, comprises a base and cap portion screwed together; both may be of metal, and the base may be of magnesia clay. The baffle g is provided with supporting lugs at the edges resting on a shoulder a<5> in the chamber a; in various modifications the baffle is either perforated, radially corrugated, or provided with a depending circumferential perforated flange. It may be formed or provided with a projection g<2> extending towards or into the upper end of the nozzle f, to restrict the entrance; or it may carry a tube g<3> extending nearly to the end of the nozzle and formed with an expanded end g<8>, this construction providing an annular passage in which the mixture is further heated bv close contact with the inner wall of the nozzle. The slotted tubular difEuser h shown in the end of the gas supply pipe may be replaced by an upwardly-projecting cone or projection on the baffle g.
Patent GB-312738-A (GB)
Title: Improvements in or relating to agricultural ploughs
IPC: A01B15/18
Filed: 1928-03-23
Abstract: 312,738. Falconer, D. March 23, 1928. Tools.-A coulter adapted to turn the soil partially over comprises a blade having curved edges B, C converging towards its forwardly projecting lower end D, a convex back, and a concave active face E inclined to conform approximately to the line or run of the mouldboard. The blade A may be bolted to the shank F or made in one with it.
Patent GB-1109468-A (GB)
Title: Treatment of films to improve their ink-receptive properties
IPC: C08J5/18
Filed: 1966-03-01
Abstract: 1,109,468. Preparing surfaces for printing. E. I. DU PONT DE NEMOURS & CO. 1 March, 1966 [2 March, 1965], No. 8982/66. Heading B6C. [Also in Division B5] The ink-receptive properties of a biaxially oriented, heat set film consisting essentially of a synthetic polymer, a cellulose derivative or regenerated cellulose, the film containing an inorganic filler, particularly a film for use in drawing offices, are improved by exposing the film to a uniform electric discharge preferably having an energy level below 15 electron volts and thereafter immediately heating the film to at least 90‹ C., particularly a temperature between 90‹ and 200‹ C. The heat treatment should follow the electrical discharge treatment prior to other operations on the film such as winding it on a roll and then unwinding it. The film may consist of polyethylene terephthalate or of polypropylene. The film may contain 2À5 to 10% by weight of the filler which may consist of hard inorganic particles of, for example, natural or synthetic silica of 4 to 6 micron size used to impart opacity and/or to provide a toothing surface for pencil receptivity. While conventional electrical discharge treatments impart ink-receptivity to films, the inked markings tend to feather or spread. The subsequent heat treatment of the present process prevents this and enables ink markings having a sharp definition to be obtained. The potential difference between the spaced electrodes used in the electrical discharge treatment may be of the order of 1000 volts to 100,000 volts or over, preferably 3000 volts to 4800 volts. Frequencies in the range of 3000 to 10,000 cycles supplied as a sine wave are preferred. The current supplied to the electrodes is preferably 0À3 RMS to 3À5 RMS amperes. Power to the electrodes may range from 10 to 100 watts per lineal inch of electrode length. The exposure time is preferably not less than 4 x 10<SP>-4</SP> second.
Patent GB-934826-A (GB)
Title: Improvements in or relating to twin line hydraulic circuits
Inventor: ROLLITT JOHN
IPC: F15B7/00
Filed: 1961-03-11
Abstract: 934,826. Hydraulic apparatus. ARMSTRONG PATENTS CO. Ltd. March 6, 1962 [March 11, 1961], No. 8983/61. Class 69 (2). A filling device for a twin-line hydraulic pump and motor circuit comprises a body member 10 having a pair of through-flow passages 12, 14, respectively, adapted for connection in one of the lines of the circuit, a branch 24, 34 leading from each passage to a pipe connector 32, 42 for detachably receiving a pipe communicating with a reservoir, one of the branches including a non-return inlet valve 30 and the other branch a non-return outlet valve 40, a normally inoperative delivery valve 44 in the passage with which the inlet valve communicates, and manually-operable means 50 for rendering the delivery valve effective to control fluid flow through the passage 12. During normal operation, the manually-operable means 50 is retracted from a seat 48 to open a by-pass 46 around the delivery valve 44 so that operation of the pump causes fluid to flow through the passages to the motor, the pump and motor being of the type having parallel pistons connected by a yoke to a transmitting or receiving member. Both the pump and motor may have a by-passing device whereby the positions of the transmitting and receiving members may be synchronized. When the circuit is to be filled, plugs 28, 38 are removed to enable the pipes from the reservoir to be fitted to the connectors 32, 42, the manually operable means 50 is moved to engage the seat 48 and close the by-pass 46, and the synchronizing device of the pump is closed while that of the motor is opened. Upon reciprocation of the transmitting member of the pump fluid from the reservoir is drawn past the inlet valve 30 during the suction strokes and forced past the delivery valve during the pressure strokes to the motor and back through the passage 14 to the pump, air passing through the branch 34 and outlet valve 40 to the reservoir. The passage 14 has a raised portion 15 connected to the branch 34 to ensure that all air passes to the outlet valve. In another embodiment, the by-pass passage is not used and the delivery valve is normally maintained open by a manually-movable projection, the projection being withdrawn to enable the valve to seat when the circuit is to be filled.
Patent GB-1285437-A (GB)
Title: Tetrahydropyrans and alcohols and a process therefor
Inventor: JUNG HERBERT AUGUST
IPC: C07D309/04
Filed: 1970-02-25
Abstract: 1285437 Octatriene ESSO RESEARCH & ENG CO 19 April 1971 [25 Feb 1970] 8991/70 Heading C5E [Also in Division C2] 1,3,7-Octatriene is obtained as a by-product in the reaction of formaldehyde or glyoxal with butadiene in the presence of a salt, chelate or coordination compound of Pd or Pt in their oxidation state + 2 and a ligand of formula YR 3  or Y(OR) 3  (Y is P or As and R is alkyl, aryl or aralkyl), if the ligand is not already present in the co-ordination compound.
Patent GB-845894-A (GB)
Title: Improvements relating to sliver coilers
IPC: B65H54/80
Filed: 1956-10-26
Abstract: 845,894. Coiling textile sliver. McDONOUGH POWER EQUIPMENT Inc. Oct. 26, 1956 [Oct. 28, 1955], No. 9033/60. Divided out of 845,893. Drawings to Specification. Class 120(3). The description is the same as that of Specification 845,893, but the claims are directed to a sliver-coiler comprising a vertical column carrying at its upper and lower ends, supports on which are respectively mounted to rotate, a a coiler-tube gear and a can-table, the lower support being angularly adjustable in a horizontal plane relatively to the column.
Patent GB-679348-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/84
Filed: 1951-04-18
Abstract: 679,348. Cathode-ray tubes. RAULAND CORPORATION. April 18, 1951 [April 19, 1950], No. 9056/51. Class 39 (i). Cathode - ray receiving apparatus comprises an ion trap consisting of two cylindrical electrodes 18, 21, Fig. 1, offset with respect to one another so the electric field between them has a transverse component to deflect the beam away from the aperture 24 in diaphragm 23, and magnetic deflecting means are provided to deflect the electrons back to the axis of electrode 21, the ions being trapped inside the latter electrode. The magnetic means is preferably a permanently magnetized ring 27 mounted on a tubular member 26 surrounding the tube neck, and a second permanently magnetized ring 28 provides a final centring adjustment of the beam. The magnets have diametrically opposite pole pieces. The tubular member 26 may be rotated or moved longitudinally to vary the strength of the magnetic fields. In an alternative construction, Fig. 2 (not shown), the electrodes as well as being offset with respect to one another are also inclined to the tube axis, e.g. by about 6 degrees, in which case the centring magnet 28 may be dispensed with. The various gun electrodes are supported by lugs 16, 19, 22 from glass rods 13; 14 is a control electrode. The final anode 21 is electrically connected by members 25 to an internal conductive coating and the other gun electrodes by leads 12a to terminal pins 12. Electrode 18 may be dispensed with and electrodes 14, 21 used to set up the electrostatic deflecting field.
Patent GB-268819-A (GB)
Title: Method of drying printed or varnished bands
IPC: B05D3/12
Filed: 1927-04-01
Abstract: 268,819. Christian, X. April 1, 1926, [Convention date]. Drying materials in long lengths.-The wetted surfaces of a printed or varnished band of celluloid &c., which is wound into a roll prior to drying, are prevented from contacting by impressions stamped in the band. Specification 104,663, [Class 98 (ii), Photographic processes &c.], is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a supporting band, the superposed turns of which are spaced apart by distance pieces. This subject-matter does not appear in the Specification as accepted.
Patent GB-764820-A (GB)
Title: Improvements in and relating to outlet closures
IPC: F16K17/40
Filed: 1955-03-29
Abstract: 764,820. Outlet closures. MANSTED, S. A. J. March 29,1955, No. 9116/55. Class 21. [Also in Group XXIX] An outlet closure comprises a housing 1, the walls of which are of an easily deformable material, e.g. soft sheet metal, which is provided with an inlet 8 and an outlet 7 at least one of which is closed with a pierceable blocking wall 4, and interiorly with an opening member 5 having a cutting edge 6 facing the blocking wall 4, the opening member being arranged in such a manner that by deformation of the housing 1, Fig. 2, it is moved against the wall 4, whereby its cutting edge 5 punches or cuts through the blocking wall. The opening member 5 is formed as a cylindrical tube open at both ends with a longitudinal slot 9 so that the cut wall 4a remains attached to the outlet tube 7. In the form shown in Fig. 6 the opening member 20 is displaced downwardly into a recess 22 cutting the blocked ends 4 of the tubes 18, 19 and connecting them by means of a hole 23. One tube 8, 19 is connected to a container which is thus hermetically sealed until the blocking wall is pierced and the other tube 7, 18 serves to dispense the contents of the container.
Patent GB-1332364-A (GB)
Title: Control system for parison extruders
IPC: B29C48/09
Filed: 1970-09-25
Abstract: 1332364 Programme controlled extrusion HUNKAR INSTRUMENT DEVELOPMENT LABORATORIES Inc 25 Sept 1970 [10 Nov 1969] 9135/73 Divided out of 1332363 Heading G3N The subject matter disclosed is identical to that of Specification 1332363, but the claims are directed to a control system for determining the relative positions of the die and the cooperating mandrel of the parison extruding machine, drawing attention to the electronic control arrangement.
Patent GB-559069-A (GB)
Title: Improvements in a fastening device for scaffolding
IPC: E04G7/04
Filed: 1942-07-03
Abstract: 559,069. Scaffold clamps. SPIRA FRERES SOC. METAMEX. July 3, 1942, No. 9193. Convention date, July 5, 1941. [Class 20 (ii)] Scaffolding poles 1, 2 are clamped together by a clamping chain 9 the ends of which are attached one to each side of a platform provided on a lever 3 above a cam 4, the other end of the lever being downturned and pointed as at 5 to engage one of the scaffold members. The lever consists of a flat bar 3 twisted at one end 4 through a rightangle to form a seating for a cross-bar 6 provided with an eye at one end and a hook at the other end. Reference has been directed by the Comptroller to Specifications 24562/04, [Class 20], and 8200/15, [Class 20 (ii)].
Patent GB-585915-A (GB)
Title: Improvements in or relating to metal-to-glass seals particularly for vacuum tubes
IPC: H01J5/26
Filed: 1942-07-03
Abstract: 585,915. Uniting metal to vitreous materials. STANDARD TELEPHONES & CABLES, Ltd., and FOULKES, C. H. July 3, 1942, No. 9264. [Class 36] A metal-to-glass seal for vacuum tubes with the metal edge feathered has a shoulder in the metal part which makes initial contact with the glass tube during the sealing operation. The metal end cap 2 has feathered parts 4, 5 for sealing to the glass tube or closure 3 and the glass envelope 1, these parts having shoulders 6, 7 with which the parts 3, 1 contact Specification 582,937, [Group XL], is referred to.
Patent GB-412719-A (GB)
Title: Improvements in or relating to road vehicles
IPC: B62D21/18
Filed: 1933-03-28
Abstract: 412,719. Road vehicles. CREASEY, E. H., 103, Portland Road, South Norwood, London. March 28, 1933, No. 9265. [Classes 108 (i) and 108 (ii).] In road vehicles of the kind wherein the rear section of the body is spaced from but rigidly connected to the front-section by a transversely disposed dropped platform or footboard, a chassis is provided which rigidly connects the front and rear sections and bridges across the gap caused by the dropped footboard. The rear and front sections 1, 2 of the body are connected by a footboard 3 connected to the sections by brackets 4 and the body is supported on a chassis disposed as shown. The chassis comprises a wooden beam 5 with metal channels 6 which channels towards the front are diverted to support the front section and the undercarriage 12.
Patent GB-631313-A (GB)
Title: Improvements in or relating to a method and apparatus for magnetically inspecting objects
IPC: G01R33/12
Filed: 1946-03-26
Abstract: 631,313. Magnetic tests. MAGNAFLUX CORPORATION. March 26, 1946, No. 9292. Convention date, May 22, 1939. [Class 37] Magnetizable metallic objects are tested for flaws &c. by subjecting the object to a resultant magnetic field, swinging the field through an angular range to vary its direction and cause the field to cross any crack or imperfection at the optimum angle, and applying finelydivided paramagnetic material. On a frame 1, Fig. 1, is disposed a bed plate 3 carrying a fixed head 4 with a journal 5 for a sliding rod 6. This carries at its inner end a conductive face plate 7, Fig. 2, to which is secured a V-support 8 for one end of the test-piece 20. The rod 6 is reciprocated by means of a lever 9, cable 11, and pedal 13. A spring 14 returns the rod 6 outwardly to its original position when the pedal 13 is released. The bed plate 3 also carries a movable head 15 which can be fastened in any position by a clamp 16. This head carries a conductive plate 18 upon which is another V-support 19 for the other end of the test piece 20, which is clamped between the plates 7, 18 by depressing the pedal 13. Also slidable along the bed plate 3 is a frame 21 carrying a coil 22 for magnetizing the testpiece. The frame 1 also carries a control panel 25 on which are mounted a, dial switch 26 for controlling current both through the coil 22 and through the test-piece 20 between the plates 7, 18. Also mounted on the panel is a meter 27 with a meter switch 28, a pair of control switches 29, 30, a main switch 31, and a variable resistor control 32. The energizing circuit may be closed either by the main switch 31 or by a pedal switch 33, as shown in Fig. 3. With the switch 29 closed and the switch 30 open, current passes through the test-piece 20 and effects circular magnetization. With the switch 29 open and the switch 30 closed the test-piece is magnetized longitudinally by the coil 22. With both switches 29, 30 closed the test-piece is subjected to a magnetic field which is the resultant of the circular and longitudinal fields. The longitudinal field alone is controllable by-the variable resistor 32 while both fields together are controlled by the switch 26, the contacts 45 of which are connected to tappings on an autotransformer 43. Both the current through the test-piece 20 and that through the magnetizing coil 22 may be alternating or one may be A.C. and one D.C. Tests may be made with each field separately and then both together and the testpiece may then be demagnetized by gradually reducing the current.
Patent GB-266164-A (GB)
Title: Improvements relating to spring button, or stud and socket fastenings
IPC: A44B17/00
Filed: 1926-04-08
Abstract: 266,164. Morton, T. April 8, 1926. Press - button fasteners are released by a device which disengages the spring and is actuated by a rotational movement or an axial movement in either direction. The spring c is engaged by slots f on opposite sides of a cylinder d which may carry a finger-piece e, each slot being inclined in two directions.
Patent GB-142087-A (GB)
Title: Improvements in or relating to shoe upper lacing machines
IPC: A43D11/08
Filed: 1920-03-31
Abstract: 142,087. United Shoe Machinery Corporation, (Assignees of Enslin, H. E.). April 19, 1919, [Convention date]. Lacing.-Relates to detail improvements in lacing-machines of the type described in Specifications 3396/08 and 6834/09, and particularly to a form having a single looper spindle for tying together the lower pair only of eyelet holes. The length of the lacing is determined by a work sup. port comprising two fingers 30, 32 spaced apart to straddle the cord between the upper and the knotter. These fingers are carried by a pivoted arm 34 operated by a cam 36 to advance the finger, into position. For inserting a longer lacing into Blucher boots, an auxiliary work-support 50, 52 is brought into position. The fingers 32, 52 are longer than their fellows to act as a stop for the cord as the upper swings below the fingers when discharged from the looper spindle 4. The reciprocating cord-gripper 16 engages the cord between the knotter and the fixed grippers, and first draws the upper against the work-support fingers, then carries the cord to shears operated by a vertically movable bar 24 which trim the cord ends close to the knot. The looper finger 6 is pivoted, provided with a stop 64, and a spring 62 to take up slack in the cord.