baber/WOPTO huggingface dataset:
Patent GB-1277756-A (GB)
Title: Improvements in or relating to swaging tools
Inventor: PAGE SIDNEY
IPC: H01R43/042
Filed: 1969-07-02
Abstract: 1277756 Closing sealing pots BRITISH INSULATED CALLENDER'S CABLES Ltd 2 July 1970 [2 July 1969] 33475/69 Headings B3A and B3Q A tool for flanging the edge of a sealing pot 15, Fig. 3, over a closure disc comprises a body 11 for supporting the pot and having a recess for a cable 16 secured to the pot, and a flanging die 27. The die is mounted on a bush 25 used for pushing the closure disc into the pot before flanging. A carrier 23 for the bush is moved by a dieactuating screw 19 and guided by limbs 13 engaging slots in the carrier. The die has bevelled rear edges (not shown) so that, after it has been rotated slightly, it may be retracted into a groove (23), Fig. 4 (not shown), extending across the forward face of the carrier 23, thus projecting the bush 25 forwardly of the die for a pushing operation. In a simpler form, Fig. 1 (not shown), the pot support and die are carried by pivoted jaws and the tool has no presser. In another construction, Figs. 6 and 7 (not shown), the pot-support and die are in the form of opposed plates which are operated by screws. A presser-bush (37) may be inserted in the dieaperture (35). If the narrow end of the bush is inserted through the die-aperture in the direction of the pot, it can be used to urge into place wedges of a wedge-type pot. In another pivoted-jaw form, Fig. 8, the presser bush 46 is screw-threaded for retraction into the die-aperture 48 and a separate spigot 51 is provided for the wedges of a wedge-type pot.
Patent GB-1513931-A (GB)
Title: Check valve
IPC: F16K15/06
Filed: 1975-08-12
Abstract: 1513931 Valves F L RODRIGUEZ 12 Aug 1975 [20 Aug 1974] 33493/75 Heading F2V In a check valve said to avoid water hammer the stem 11 of a valve element 10 is guided in a bearing 8 supported in a bushing 5 by arms 6 from a removable cover 3. A planar surface of the valve element engages a seat flange 16 supported by brackets 9.
Patent GB-1010132-A (GB)
Title: Improvements in rotary gear pumps
Inventor: HOFFER JAMES FABER
IPC: F04C15/00
Filed: 1962-09-01
Abstract: 1,010,132. Gear pumps. PARKER-HANNIFIN CORPORATION. Sept. 1, 1962, No. 33637/62. Heading F1F. A gear pump comprises a casing 10 (Fig. 1) having an end cap 11 and containing a generally cylindrical unitary gear subassembly 12 which includes pumping gears 24, 25 having integral bearing-stubs or journals 26 lodged in bushings 35 carried by end plates 30, 30a on either side of a centre plate, 31 the assembly being placed in casing 10 to effect engagement of a splined driving-shaft 22 with splines 28 in either of the pumping gears. Fluid entering the pump through an inlet 15 passes into assembly 12 through an opening 40 (Fig. 4) in end plate 30 and an opening 33 in centre plate 31 having a volute configuration (Fig. 8, not shown) to suppress cavitation in the fluid approachthe gears, opening 40 and an opening 40a in axial alignment therewith in end plate 30a being in communication with spaces 44a to effect cooling of the assembly. To facilitate entry of the fluid into the gear-tooth spaces, shallow recesses 45, 45a are provided in wear plates 32, 32a adjacent notches 43, 43a therein which are in register with openings 40, 40a, further recesses 48, 48a being provided in the wear plates to facilitate discharge of fluid from the gear-tooth spaces through bores 46, 46a 47, 49, 49a, 50 in plates 30, 30a 31 and thence to an outlet 16 through a ring 51 lodged in end cap 11. Pressure exerted on ring 51 by fluid passing therethrough effects axial loading of the assembly to minimise leakage of fluid between the side faces of the gears and the wear plates, the ring being sealed by an O-ring 55. Lubrication of journals 26 is provided by leakage of fluid through axially-extending grooves 37 in bushings 35 from annular grooves 27 in the gears to shallow bores 39, 39a which intersect openings 40, 40a. Grooves 27 in each gear communicate with one another through bores 74 (Fig. 6) in end plates 30, 30a and bores 58a, 59, 60a containing a clamping screw 57 to equalize pressures on either side of the gears and improve the lubrication of journals 26. Leakage fluid in a seal assembly 18 for shaft 22 escapes by flowing downwardly through one or other of a pair of passages 19, the uppermost passage being closed by a plug 20.
Patent GB-650260-A (GB)
Title: Improvements relating to electric discharge devices with hydrogen filling
IPC: H01J17/26
Filed: 1948-12-31
Abstract: 650,260. Discharge apparatus. BRITISH THOMSON - HOUSTON CO., Ltd., and HOOKER, O. N. Dec. 31, 1948, No. 33648. [Class 39 (i)] In a hydrogen-filled discharge device, the supply of hydrogen is maintained by means comprising a capsule having an inner portion perforated at 4 on which a chemical compound constituting a reservoir of hydrogen, e.g. a metal hydride, is located, the capsule being provided also with a heater element 6 to heat the compound, which then releases the hydrogen. The capsule is formed of the plates 1, 2 secured together and dished at 3 and in one plate (2) a sheet 4 of metal gauze or perforated metal is secured and increases the adhesion of the compound when spread thereon. Notches 5 on the plates receive the insulating sleeve 7 of the element of which the end 8 is secured to the capsule. A strip 10 secured to the capsule may be connected to one lead-in wire for the cathode heater of the device and the element end 9 may be connected to an independent contact pin on the device, Figs. 3, 4 (not shown). More than one heater element may be used.
Patent GB-445493-A (GB)
Title: Improvements in belt and rope drives
IPC: F16H7/08
Filed: 1934-11-23
Abstract: 445,493. Tensioning belts. SWIFT, H. W., 2, Ellenthorpe Road, The Glen, Shipley, and SYKES, F., 244, Leymoor Road, Golcar, both in Yorkshire. Nov. 23, 1934, No. 33659. [Class 80 (i)] An idle roller bearing against and interfering somewhat with a free strand of the belt or rope is connected by a lever or linkage to a pressure roller which does not interfere with or deflect the other free strand but exerts upon the belt at some point on its are of contact with the pulley a radial pressure which is dependent upon the tension in the free strand first referred to. The pressure roller 1 is mounted on a spindle 2 carried by a pair of lever arms 3 pivoted at 4 to a bracket 5, the outer ends of the arms carrying a spindle 6 on which is mounted an idle roller 7 engaging the tight side 8 of the belt. Increase in tension of this side forces the pressure roller 1 against the pulley 9. To neutralize the effect of gravity and provide an initial pressure, a spring 10 anchored at 11 is connected to the lever 3. In a vertical drive, Fig. 2, the pressure roller 12 is mounted on a spindle 13 carried by two plates 14 pivoted at 15. The plates are adjustably clamped to a flexible extension 17 pivoted to a rod 19 a boss on which carries the spindle of the idle roller 20 and is connected by a spring 21 to a lug 23. The tight side 25 exerts a toggle action on 19, 21 to produce a radial force on the belt passing over pulley 18. In a modification, the pressure roller is rotatably mounted on a spindle with eccentric pivots carried by a fixed bracket, the spindle being rotated by the idle pulley through a flexible bar in such manner as to relieve pressure on the pressure pulley as the tension in the tight side increases. In a further modification, two pressure rollers are employed, one acting on the driving and the other on the driven pulley. These rollers are mounted on pivoted arms the free ends of which are connected by links to a third link carrying the idle pulley. In addition to using flexible links, the rollers and pulleys may be of non-rigid material, such as rubber, to counteract any tendency to jumping. When applied to rope drives, the rollers and pulleys may be grooved.
Patent GB-655655-A (GB)
Title: Optical systems for measuring the thickness of transparent sheet materials
IPC: G01B9/02
Filed: 1948-12-31
Abstract: 655,655. Optical apparatus for gauging dimensions. BRITISH CELANESE, Ltd. Dec. 31, 1948, No. 33663. Convention date, Jan. 7. [Class 106 (ii)] [Also in Group XX] The thickness of a transparent sheet 10, Fig. 1, is measured by an optical wedge 13 receiving light R reflected from the sheet 10, the optical thickness of the wedge varying over a range that includes the optical thickness of the transparent sheet so that an interference pattern may be observed near the point where the optical thickness of the wedge is equal to the optical thickness of the sheet. A scale 13 may be attached to the wedge so that thicknesses may be indicated directly by the position of the interference pattern. The wedge, Fig. 3, may comprise a pair of optical flats 14, 15 disposed at an angle to each other to provide an air or liquid wedge between them, the lower face 23 of flat 14 having a partly mirrored surface and the upper face 24 of flat 15 having a fully mirrored surface. Alternatively the wedge may be of glass with its upper surface partly mirrored and its lower surface fully mirrored.
Patent GB-1025435-A (GB)
Title: New hydroxyarylquinazolones
Inventor: RODGERS JOHN LEO
IPC: C09K11/06
Filed: 1964-08-19
Abstract: Compounds of the formula <FORM:1025435/C4-C5/1> wherein R is hydrogen or an alkyl group and R1 and R2 are hydrogen, halogen or hydroxyl, alkyl or alkoxy groups of 1-4 carbon atoms exhibit luminescence on irradiation with U.V. light. Examples relate to (16) NaCl wafers containing the luminescent and to the incorporation of various luminescers in (17) pigmented and unpigmented inks, (18 rotogravure ink, (19) black letterpress ink, (20) white paint, (21) an alkyd varnish, (22) green paint, (23), (24), (26) sheet P.V.C., and (25) sheet polypropylene.ALSO:The invention comprises compounds of the formula <FORM:1025435/C2/1> where R is hydrogen or an alkyl group and R1 and R2 are hydrogen, halogen or hydroxy, alkyl or alkoxy groups of 1-4 carbon atoms. The compounds are made by cyclising an N-aroylanthranilide of the formula <FORM:1025435/C2/2> by heating under alkaline conditions and thereafter, if R is an alkyl group, effecting alkylation of the product.  The reaction is suitably carried out in the presence of NaOH.  The compounds exhibit luminescence on irradiation with ultra-violet light (see Division C4).  Numerous compounds are specified.  The compounds of the Formula II are made by reacting the corresponding aryl acid chlorides with anthranilide.
Patent GB-480134-A (GB)
Title: Improvements relating to method and apparatus for processing cord fabric
IPC: D06C3/00
Filed: 1936-12-11
Abstract: 480,134. Fabrics composed of cords united by adhesives. WINGFOOT CORPORATION. Dec. 11, 1936, No. 34038. Convention date, Aug. 26. [Class 140] Pick woven rubberized cord fabric is treated by stretching the pick threads beyond their elastic limits, for example to the breaking point. The pick woven cord fabric F drawn from a roll 18 is rubberized on one surface in a calender 11, passed through a breaker unit 10 and rubber-coated on the other surface in a second calender 12. The breaker unit 10 comprises a pair of co-operating steel rolls 20, -21 having peripheral grooves 22 defined by flanges 23, Fig. 4. Guide rolls may be provided at the ends of rolls 20, 21 to prevent the edges of the fabric F from curling. Roll 20 is journalled in bearing - blocks 26 on a base 27 and roll 21 is journalled at 28 on adjustable arms 29 pivoted at 30 in uprights 31. The arms 29 are connected by a rod 35, adjacent the ends of which a pair of bell-crank levers 36 provided with handle parts 37, are pivotally mounted. Links 39, 40 pivoted at 38 to the levers 36, are provided at their lower ends with weights 41 so that in the operative position, Fig. 1, the pivot 38 is beyond the vertical plane of the rod 35 and the weights 41 are lifted. When the handles 37 are swung in a counterclockwise direction the weights 41 are lowered and the links 39, 40 act through the levers 36 to swing the arms 29 upwardly about pivots 30 to disengage the rolls 20, 21.
Patent GB-184763-A (GB)
Title: An improved form of recording key for safe and other locks
IPC: E05B19/22
Filed: 1921-12-19
Abstract: 184,763. Douglas, J. Aug. 16, 1921, [Convention date]. Keys.-A key is constructed to indicate automatically whether it was last used for locking or unlocking. The key is made with one part 5 of the shank fitting into a hollow part 6 and connected thereto by the pin P on the part 5 working in a curved slot 1 in the part 6. When the key is inserted and turned, the part 6 first turns independently of the part 5, bringing the pin P to one end O of the slot 1 if the key is further turned for unlocking, or to the other end S, if further turned for locking. The curvature of the slot 1, and the spring 2 pressing on the end of the part 6, retain the pin at the end of the slot until the lock is again operated.
Patent GB-420727-A (GB)
Title: Improvements in or relating to television and like systems
IPC: H04N5/16
Filed: 1933-12-06
Abstract: 420,727. Television; valve amplifying circuits. FERNSEH AKT.-GES., Goerzallee, Zehlendorf, Berlin. Dec. 6, 1933, No. 34273. Convention date, Dec. 6, 1932. [Classes 40 (iii) and 40 (v)] A correct mean brightness of a reproduced picture, relative to the brightest and darkest tones is maintained automatically. The mean brightness of a light source or relay 11 is regulated by automatically regulating the grid bias of the valve 10 feeding the source by a voltage derived from a previous valve 4 amplifying the received signals. The output of this valve passes through a rectifier 14 to develop a potential on the grid of an extra valve 19 and thus vary its anode current. The anode circuit contains a resistance 21 which also lies in the grid circuit of the valve 10. The rectifier is associated with a leaky condenser 18, 17 with a time constant such that variations in the mean value of the signal are not operative until they have lasted for a small plurality of pictures.
Patent GB-866300-A (GB)
Title: Boxes formed from blanks of cardboard or like material
Inventor: CHIDGEY ALFRED LEONARD
IPC: B65D5/44
Filed: 1956-11-09
Abstract: 866,300. Cartons. ROBINSON Ltd., E. S. & A. Nov. 11, 1957 [Nov. 9, 1956], No. 34380/56. Class 18. A box as in Fig. 5 comprises an outer shell having a base 1 and double walls 2-5 folded up from the blank of Fig. 1, and a reinforcing unit, Fig. 2, incorporated in the shell during erection and having a base 22 overlying the shell base 1 and walls 23, 24 inset relative to the periphery of the shell base 1 and sandwiched between the double walls 2-5, flaps 6 lie against the outer face of the walls 24, while flaps 9 fold in against the panels 4 to come face-to-face with the flaps 6. Panels 11 and 12 interengage and tabs 13 remain erect to engage a lid ; a lining unit is then inserted. A lid, if fitted, is of similar construction.
Patent GB-181299-A (GB)
Title: Improvements in or relating to electric switches
IPC: H01H23/16
Filed: 1921-02-28
Abstract: 181,299. Tucker, J. B. Feb. 28, 1921. Switches, quick-action, of the type in which a spring adapted to operate in tension is arranged between the operating-member and the contactmember which are mounted on separate parallel axes have the axis of the contact-member located nearer to the back of the switch base than is the axis of the operating-member. As shown in Fig. 1 applied to a tumbler switch, the doublearmed tumbler lever is pivoted at 2 and the contact arms 5 at 6. A cranked extension 7 is mounted between the arms 5 and insulated therefrom, and a tension spring is arranged between the extension 7 and a pin 3 on the lower end of the tumbler lever. Instead of a simple tension spring, a telescoping spring-element which has a pull action, as described in Specification 179,722, may be employed.
Patent GB-619028-A (GB)
Title: Improvements relating to frames for shopfronts, windows, show cases and the like
IPC: E06B1/38
Filed: 1946-11-21
Abstract: 619,028. Ornamenting. DAVIES, A. F. C Nov. 21, 1946, No. 34520. [Class 52 (i)] [Also in Group X] . A frame member form ing part of a showcase &c., comprises a flanged metal profile member 1 as of iron, steel &c. forming a core, com bined with a decorative sheet metal covering 2 e.g. of stainless steel bronze, aluminium &c. having a resilient chan nel portion towards one edge enabling it to be sprung over and clipped upon a flange on the core. A positive lock may be provided by means of a curvature 3 at the free edge of the core. A T-sectioned core may have both free edges engaged by channels formed along both edges of a detachable moulding. A more robust angle rail 8 of'folded sheet metal has projecting lips 7 to increase the grip of the covering 2.
Patent GB-192370-A (GB)
Title: Automatic change speed gear
IPC: F16H9/12
Filed: 1922-12-19
Abstract: 192,370. Tremblay, H. G. Jan. 24, 1922, [Convention date]. Expanding-pulley gearing comprises a double intermediate pulley 1, 2 movable automatically in the line of the driving and driven belts 9, 10 to vary the speed. The outer flanges of the double pulley 1, 2 are secured to a shaft 3, while the inner flanges are preferably formed upon a solid doubly-coned member 5, which slides on a feather on the shaft 3. The shaft 3 is carried by a frame 4 which slides controlled by a spring 15 for the automatic variation. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a non-automatic arrangement in which the frame 4 is moved positively, as by manually-operated eccentrics. This subject-matter does not appear in the Specification as accepted.
Patent GB-1364297-A (GB)
Title: Monomeric and polymeric compounds
IPC: G03G5/082
Filed: 1971-07-23
Abstract: 1364297 Organic selenium compounds XEROX CORP 23 July 1971 [30 July 1970] 34702/71 Heading C2C [Also in Divisions C3 and G2] The invention comprises selenium compounds of formula where B is divalent organic radical, Y is -Se-B-Se- and n is an integer, polymers having repeating units of formula where A is a divalent organic radical, and polymers with repeating units of formula where B is a divalent organic radical and a is an integer. The compounds and polymers of Formulae VI and II are prepared by reacting a difunctional compound with a difunctional reagent containing a -Se-Segroup. Polymers of Formula II may be obtained by heating compounds of Formula VI. Polymers of Formula III are obtained by heating compounds and polymers of Formulae VI and II with elemental selenium. Many of the compounds and polymers of Formulae VI and II and all the polymers of Formula III are photo-conductive and are used in the production of electrophotographic plates as an interlayer between an electrically conductive substrate and a layer of photo-conductive material to improve the adhesion, or as the photo. conductive material itself or as a protective coating over a layer of photo-conductive material. Also, the polymers of the invention may be used as binders for dispersions of particles of photo-conductive material. In examples there are prepared poly-[4,6-bis-(methyl-m-xylene, diselenide]; poly - (dimethylmesitylene diselenide); a cyclic dimer of α,α<SP>1</SP>-diseleno-m-xylene which is heated to obtain a higher polymer which is heated with selenium to obtain a polymer containing chains of selenium atoms between mxylylene radicals; polymeric α,α<SP>1</SP>-diseleno-pxylene, poly-(methylene diselenide); poly-(mphenylene diselenide) and poly-(p-phenylene diselenide which also is heated with selenium.
Patent GB-424369-A (GB)
Title: Improvements in and relating to apparatus for moulding plastic materials
IPC: B29C45/62
Filed: 1933-12-11
Abstract: 424,369. Injection moulding of artificial resins &c. BRAUN AKT.-GES., F., Zerbst, Germany. Dec. 11, 1933, Nos. 34816, 34817, 34818, and 34819. Convention dates, Dec. 10, 1932, Dec. 10, 1932, Feb. 17, 1933, and Oct. 24, 1933. [Class 87 (ii)] In an injectionmoulding machine foi plastic material, particularly artificial resin, of the kind in which the material is forced by a piston or plunger into a heated chamber provided with an injection nozzle, the chamber gradually increases in cross-section from its inlet, or a point adjacent thereto, to the base of the nozzle, and then gradually decreases to the nozzle orifice. As shown, the piston 2 operates in a cylinder 1 fed by a hopper 3, the material being forced into a chamber 4 the cross-section of which increases as far as the base of the nozzle 5 and then decreases to the nozzle orifice 6. The chamber 4 is heated externally by an electric heater either directly or through an interposed liquid jacket. The chamber 4 may be provided with internally-projecting heat conducting fins ; the fins may be attached to a central core which may be hollow and may have an electric heater embedded in its wall; the core, when solid, may gradually increase in cross-section from the inlet end of the chamber so that the width of the annular gap between the core and the wall of the chamber gradually decreases towards the widest part of the chamber. The Specification, as open to inspection under Sect. 91, describes also a modification having a core gradually increasing in crosssection from the inlet end of the chamber which is surrounded by an electric heater having an external layer of heat insulating material, the outlet of the nozzle being controlled by a valve. This subject-matter does not appear in the Specification as accepted.
Patent GB-522011-A (GB)
Title: Improvements in and relating to electric inverting systems
IPC: H02M7/44
Filed: 1938-11-30
Abstract: 522,011. Converting. FRIEDLANDER, E. Nov. 30 1938, No. 34885. Convention date, Nov. 30, 1937. [Class 38 (ii)] In a polyphase inverter system of the type in which commutation is effected independently of voltage generated by external sources, stabilization of frequency or voltage is effected by associating therewith a parallel connection of saturated iron core reactor 5 and capacity 6 or a combination of inductive and capacitative elements having similar voltage-current characteristics, and means are provided for suppressing harmonics caused by saturation so as to obtain a sinusoidal output voltage. When operating on a fixed frequency, harmonic suppression may be effected by such resonant circuits. When frequency is to be varied, e.g., for motor speed control, methods of harmonic suppression depending upon multiple flux systems with suitable phase relationship therebetween are employed. For example, two sets of saturated iron core reactors 5, 7 respectively connected in star and delta may be used. In :an arrangement in which the capacitative and .saturated core inductive elements comprise respectively the commutating condensers and the supply transformer 5, Fig. 2, the secondary windings of the latter are arranged in tapped mesh connection with the two halves in opposite phase sequence. The inductive elements may, however, be formed by the load, e.g. motors with saturated poles and yokes. Regulating and starting problems are discussed at length in the Specification.
Patent GB-213321-A (GB)
Title: Improved pit tub coupling hook
IPC: F16B45/00
Filed: 1922-12-22
Abstract: 213,321. Rudge, J. Dec. 22, 1922. Hooks for coupling pit tubs have a projection B formed opposite the inturned point C of the hook, and the sides of the coupling eyes D are narrower than the ends so that the hooks must be passed over the eyes slightly sideways. Specification 20834/99, [Class 103, Railway &c. vehicles], is referred to.