baber/WOPTO huggingface dataset:
Patent GB-998641-A (GB)
Title: Improvements in, or relating to, electric heating elements
Inventor: GREENHALGH HAROLD
IPC: H05B3/14
Filed: 1960-09-14
Abstract: 998,641. Electric heating elements for furnaces. SALEM-BROIUS (ENGLAND) Ltd. Sept. 14, 1961 [Sept. 14, 1960], No. 31606/60. Heading H5H. An electric heating element, for a furnace of the soaking pit type, comprises a tube of silicon carbide, or other non-oxidizing, refractory material, packed with granular coke, or similar conductive, carbonaceous substance, and an electrode which is a sliding fit within, and projects from, one end of the tube pressed inwardly to make electric contact with and apply pressure to the substance in the tube. As shown, three such heating elements 1 are located parallel to, and equally-spaced from, one another by carriers 2, each tube opening into a triangular chamber 4 which is also packed with coke. At their other ends the tubes are closed by electrodes 5, connected to a three-phase current supply, and secured to piston-rods 7 of double-acting pneumatic or hydraulic rams 8. The temperature to which the heating elements are raised may be varied by adjustment of the pressure applied to electrodes 5. As and when any one of the electrodes reaches a predetermined limit of inward travel, due to loss of carbonaceous material, a member 9 secured to the corresponding piston-rod closes a normally-open switch 11 to energize the coil 13 of a solenoid-actuated change-over valve 14 and thereby reverse the flow of pressurized fluid and cause the electrode 5 to be retracted. Although this movement opens switch 11, the relay circuit is held closed by the normally-closed switch 10, until further outward movement of the piston-rod causes member 9 to open switch 10, whereupon the electrode is again driven inwardly. However, during retraction of electrode 5, the lower end of a hopper 6 containing replacement carbonaceous material is unmasked and this material flows into the tube 1. Also during this period, inert gas may be supplied to the tube 1. Three such groups of three heating elements may be provided in a soaking pit furnace, one group at each side and one beneath a centre arch, the electrode-containing ends of the elements projecting outside the furnace, Fig. 4 (not shown).
Patent GB-397712-A (GB)
Title: Improvements in or relating to electric discharge apparatus
IPC: H01J17/16
Filed: 1932-11-09
Abstract: 397,712. Discharge apparatus. SIEMENS - SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. Nov. 9, 1932, No. 31692. Convention date, Nov. 9, 1931. [Class 39 (i).] At least those parts of the main arcing chamber most subject to the effects such as heat of the discharge consist wholly or in part of vitrified aluminium oxide. Vitrified aluminium oxide may in addition be used for internally disposed insulating members of metal vapour rectifiers, for example, for cathode insulators, cathode insert-members and anode insulators. Or such members may consist of pure insulating oxides such as zirconium oxide, magnesium oxide, spinel, or corundum. The various parts are formed from aluminium or other oxides as the case may be, cast or pressed or cast and pressed into the desired shapes and then vitrified. In addition to casting and pressing, the bodies may be treated superficially with tools.
Patent GB-176844-A (GB)
Title: Improvements in apparatus for forming, straightening, reeling, or similarly operating upon, mandrels which are to have a taper formation
IPC: B21B19/02
Filed: 1920-11-09
Abstract: 176,844. Inshaw, J. G., and Inshaw, G. R. Nov. 9, 1920. Skew-rolling. - Apparatus for forming, straightening, and similarly treating tapered mandrels comprises rolls A, the axes of which are in parallel planes but intersect, in elevation, approximately at the end a of the rolls. The heated work is placed in a trough B, which is pivoted at b<1> and is raised and lowered by an hydraulic ram D. The work is drawn into the pass by the rotation of the rolls, and is held between a fixed support D<1> and a bar b forming the bottom of the trough. Between the rolls the sides of the trough are cut away and the bar b is clamped between plates b<2>. The trough is stiffened by braces b<3>, b<4>, b<5>, b<6>.
Patent GB-1441163-A (GB)
Title: Fibre optics
IPC: B29C48/05
Filed: 1973-07-03
Abstract: 1441163 Light guides SUMITOMO ELECTRIC INDUSTRIES Ltd 3 July 1973 [3 July 1972] 31713/73 Heading G2J [Also in Division D1] A method of exciting an optical fibre for optical communication, in which the fibre comprises a core of optical glass, e.g. high purity fused quartz, having an isotropic refractive index, and a cladding of an organic material, e.g. one containing fluorine, comprises illuminating the fibre end-on with a beam of light whose intensity on a line perpendicular to the beam has a Goussian distribution, and the beam has a half-amplitude of 0À3 to 0À6 times the diameter of the core. The cladding has a dielectric loss tangent in the range 10<SP>-10</SP> to 10<SP>-5</SP>. Examples of the organic material are given.
Patent GB-1062228-A (GB)
Title: Pushbutton devices with interlocks
IPC: H01H13/74
Filed: 1965-07-26
Abstract: 1,062,228. Interlocking switches. BROOKHIRST IGRANIC Ltd. July 26, 1965 [Aug. 4, 1964], No. 31730/65. Heading H2B. [Also in' Division E2] Two or more push buttons 16, 18, are interlocked by a disc or discs 28 such that when. e.g., button 18 is depressed, to actuate a switch-operating member 14b, the button 16 is blocked from being depressed to actuate its switch-operating member 14a. Buttons 16, 18 are biased outwardly by springs 36 which bear at their other ends on a plate 38 retaining the springs 36 and the disc or discs 28 in position (Fig. 6, not shown).
Patent GB-402794-A (GB)
Title: Improvements in and relating to change speed gearing for motor propelled vehicles
IPC: F16D65/14
Filed: 1932-02-29
Abstract: 402,794. Controlling change-speed gearing. WILSON, W. G., and WILSON, A. G., 23 Queen Anne's Gate, London. Feb. 29, 1932, No. 31746/33. Divided on 402,778. [Class 80 (ii).] Change-speed gearing for motor vehicles comprising interconnected epicyclic trains has been selectively controlled by a rocking buss bar manually operated. This invention substitutes power operation. Thus change-speed gearing of the Wilson type, such as is described in Specifications 164,042 and 312,128, [both in Class 80 (ii), Gearing, Variable-speed &c.], has been controlled by such a buss bar as described in Specification 328,660, [Class 80 (ii), Gearing, Variable-speed &c.], there being lever mechanism to reduce the pedal thrust necessary. This invention eliminates such lever mechanism and also the effect of failure of the driver to thrust the pedal right down. A buss bar shown in section at 1, Fig. 2, is rocked downwards about a knifeedge pivot 4 so as to disengage any brake that has been applied to the epicyclic gearing. In its return upward rocking movement, the buss bar engages at 2 any preselected one of a number of struts 3 and raises that strut to apply a different brake as described in Specification 328,660. The preselector mechanism, which is similar to that described in Specification 370,442, comprises a multiple selector cam 16 turned from a preselector lever 25. Each cam is in the form of a notch 16a into which a selected spring lever 18 drops so as to thrust a selected strut 3 to the right of Fig. 2 so that the lower end of that strut is engaged at 2 by the upward return rock of the buss bar 1. As the strut 3 is carried upwards, a lug 24 upon it engages and rises between a number of pivoted plates 21 which rock in a confined space as described in Specification 370,442, and prevent any other strut from rising. In a form of the invention shown in Fig. 1, the buss bar 1 is returned upwards by a spring 5 which acts upon a bucket 5<1> pivoted on a knife-edge 6 on a lever 7 integral with the bar 1, such spring serving to hold in operation during running any selected speed. The power, which acts to tilt the bar 1 downwards against the spring 5, is applied through a connecting-rod 13 having a ball connection 14 with an extension 8 of the lever 7. The power for this down stroke is supplied by pressure air or liquid admitted at the will of the driver behind a piston 11. On release of the pressure, the spring 5 effects the return stroke. In a form shown in Fig. 5, the power effects the up stroke. The connecting rod 13 of a piston 11 situated below the bar is jointed at 37 directly to the outer edge of the buss bar. The return stroke is effected by a spring for the purpose, or by brake-releasing springs assisted by gravity. A form is described in which the up stroke is effected through a lever linkage from an inverted cylinder like the cylinder 10 of Fig. 1.
Patent GB-339728-A (GB)
Title: Improvements in or relating to braces for personal wear
IPC: A41F3/02
Filed: 1929-10-19
Abstract: 339,728. Kew, F. S. Oct. 19, 1929. Braces. - Relates to trouser braces of the type with a lever adjusting clip and with a roller for carrying the tab end constructed as an integral member, and consists in a construction in which the pivoted flap 10, for holding the tab cord in position on its roller, is made with a tail piece 14 coacting with a spring tongue 15. As shown, a metal plate is provided with slots 2, through which is threaded the shoulder strap to form a loop 4. Earpieces 7a on the plate are perforated to receive pins or projections on the webbing clamp 7. The roller is carried by a triangular shaped lug 1a on the plate.
Patent GB-761466-A (GB)
Title: Improvements in or relating to methods of applying metal layers by electro-deposition
IPC: C25D5/18
Filed: 1953-11-18
Abstract: 761,466. Electrodeposition. NAAMLOOZE VENNOOTSCHAP PHILIPS GLOELAMPENFABRIEKEN. Nov. 18, 1953 [Nov. 21, 1952], No. 31978/53. Class 41. A method of electrodepositing a metal layer on an object comprises applying a voltage across the object and an electrode and interposing an auxiliary electrode between the object and first electrode, relative movement between the object and auxiliary electrode being provided such that for each portion of the object a current of varying magnitude is produced, the auxiliary electrode being at least periodically negative with respect to the object. The object may be a disc supported in a bath above and parallel to a stationary anode, a sector-shaped auxiliary electrode being arranged coaxially between the disc and anode. A constant potential of 2 volts is applied between the anode and the disc and the sector is made 1.5 volts negative with respect to the disc. The disc or the sector is rotated whereby the direction of current flow to each portion of the disc is re-. versed once per revolution as that portion comes opposite the negative sector, which may have convex side edges. The sector may be screened on the anode side. If the object is a cylinder or shaft, the auxiliary electrode is a coaxial curved plate, and the anode a cylinder, and if the object is a rectangular plate the auxiliary electrode is likewise rectangular having one dimension equal to that of the plate and one unequal. In this last example, only the auxiliary electrode moves, between the object and an anode. In all the above embodiments, the direct negative voltage between the object and the auxiliary electrode may be replaced by an alternating voltage or by a pulsatory direct voltage which makes the auxiliary electrode only periodically negative relative to the object.
Patent GB-966968-A (GB)
Title: Method and apparatus for preventing circulation of hall currents in electrical magnetohydrodynamic generators
IPC: H02K44/08
Filed: 1960-09-16
Abstract: 966,968. Generators operating by electromagnetic interaction with fluids. AVCO CORPORATION..Sept. 16, 1960 [Dec. 21, 1959], No. 32012/60. Heading H2A. Longitudinal Hall currents in a magnetohydrodynamic generator are suppressed by subdividing the electrodes into a series of mutually insulated parts (segments) disposed along the duct in the direction of gas flow. Each pair of opposed segments 53a, 54a are connected through inverters 55a to primary winding 56a of a transformer 57 having a common secondary winding 58. In other modifications all pairs of segments are shown connected in series with the load, Fig. 7 (not shown), or pairs of non-adjacent segments may each be connected in series with a load, Fig. 8 (not shown). For optimum conditions the ratio of the distances between opposed segments and adjacent segments should be #t(1-e/e), where # is the electron e cyclotron frequency, t is the electron mean time between collisions and e is the electrical efficiency of the generator.
Patent GB-1122582-A (GB)
Title: Improvements in or relating to apparatus for exerting a shearing grinding action on fibrous material
IPC: D21D1/30
Filed: 1965-07-27
Abstract: 1,122,582. Grinding mills. O. DORRIES. G.m.b.H. 27 July, 1965 [22 Aug., 1964], No. 32088/65. Heading B2A. [Also in Division D2] Apparatus for exerting a shearing grinding action on fibrous material to be used in the production of paper, cardboard, or pasteboard comprises co-operating relatively movable grinding members each of which includes a supporting body having a plurality of separate individual working pins secured thereto, each pin projecting outwardly of the surface of the said body and having working edges on its projecting end face spaced from such body surface, the area of said projecting end face being less than the area of the smallest non-reentrant figure enclosing said face. One grinding member is moved e.g. rotated, relatively to the other grinding member which is either moved or stationary. In one form, Figs. 1 and 2, the supporting body 1 has non-releasably secured thereto tubular pins 2 having working surfaces 12 formed with cutting edges. The body 1 may be formed of metal, plastic, or ceramic and the pins 2 may be formed of the same material as, or different material from, that of the body 1. Alternatively, the body 1 may be conical, and the pins 2 may have a square, triangular or elliptical crosssection. Also, the pins may be releasably secured to the body. In another form, the pins 9, Fig. 9, are of chevron shape. Alternatively, the pins may be semi-circular or semi-cylindrical. In a further form, the pins project from opposite surfaces of the supporting body. In a still further form, the working faces of the pins are inclined to the axes of the pins and may be planar, curved or stepped.
Patent GB-986886-A (GB)
Title: Workpiece ejection supervising device
IPC: B30B15/32
Filed: 1961-09-07
Abstract: 986,886. Metal working presses; stop and relief mechanism. E. SCHWARZ. Sept. 7, 1961 [Sept. 30, 1960], No. 32209/61. Headings B3H, B3Q and B3W. A device for controlling the operating cycle of an automatic press, punch or like machine comprises a switch - actuating member arranged for movement from a basic position into an operated position and back into the basic position as a result of passage of an ejected workpiece therepast or as a result of movement of a workpiece ejecting member from a basic position into an ejecting position and back, the switch actuating member being arranged for actuating first switch means on movement into its operated position and for actuating further switch means on movement back into its basic position. In an embodiment a processed workpiece is blown out of the die 12 with an air blast from a device 11. The ejected workpiece passes down a shoot 13 and engages a pivoted control flap 14 which actuates a control switch 19 incorporated in the automatic electric circuit of the machine. When the workpiece passes the flap the switch 19 closes the contacts of one auxiliary relay and when the flap swings back to its initial position after the workpiece has fallen off the shoot, the switch 19 closes the contacts of a second auxiliary relay. Only when both auxiliary relays are closed can the control impulse, which is tripped by the feed mechanism of the machine, initiate a further descent of the ram 24. In another embodiment the ejection of the workpiece is effected by an expeller 27 provided with a piston-rod 25 and a plunger 26. Fig. 2. Supervision of the ejection of the workpiece is achieved by a control plate 28 arranged on the piston-rod 25 which actuates a control switch 29 at the end of the ejection stroke and a second switch 31 at the end of its return stroke. The switches 29, 31 control the auxiliary relays. Photo-electric cells and contact microphones may be used as control contacts for supervising the ejection of the workpiece.
Patent GB-169114-A (GB)
Title: Improvements in cigar lighers
IPC: F23Q2/30
Filed: 1920-11-16
Abstract: 169,114. Thilow, F. B. Nov. 16, 1920. Lighting cigars by catalytic devices. - Relates to cigarlighters in which gas from an automatic gas - generator is ignited by a platinum sponge and comprises an automatic gas-generator 9 communicating with a burner 4 over which a platinum sponge is adjustably mounted and a mirror 24 mounted in close proximity to the burner for observing the end of the cigar during lighting. The burner 4, which is provided with a valve 12 operated by a lever 14 against a spring 16, is mounted in the neck 6 of the bell 7 surrounding a piece of zinc 10 in the acid container 1. The platinum sponge is housed in a cap 18 adjustably mounted on a rod 21. The mirror 24 is mounted so as to be adjustable vertically and axially in a socket 26.
Patent GB-832073-A (GB)
Title: Improvements in and relating to the coating of paper
Inventor: WOLFE DEXTER LEIGH
IPC: D21H25/02
Filed: 1956-10-23
Abstract: 832,073. Mineral coated paper. KIMBERLEY-CLARK CORPORATION. Oct. 23, 1956, No. 32301/56. Class 96. A mineral coating mixture for high-grade printing paper, or barrier-coating greaseproof paper, is applied to the paper 10 as by rolls 14, 16, 12, and the surface of the coating is hardened by a liquid, e.g. a solution of aluminium sulphate, formaldehyde, ammonium sulphate, or other compounds of aluminium, copper, zinc, lead, iron, sodium, or calcium, applied by rolls 22, 21, so that the surface of the coating is hardened as the paper passes between e.g. a resilient roll 19, and a chromium-plated roll 21. The coating may include clay and/or calcium carbonate, casein, soya protein, glue, carboxy methyl-, hydroxy ethyl-, or oxidizedcellulose, polychloroprene, polyacrylic acid esters or other synthetic or natural rubber, polymers of vinyl acetate, copolymers of vinyl chloride and vinyl acetate or vinylidene chloride, sodium alginate, or a sodium salt of polystyrene-maleic anhydride. The binding media may be extended by starch or modified starch, and the coating may include plasticizers, softeners, sodium hexametaphosphate, wetting agents, and dyes.. The web may be coated on one or both sides, e.g. over other coatings.
Patent GB-636932-A (GB)
Title: Improvements in the manufacture of multi-cellular vitreous products
IPC: C03C11/00
Filed: 1946-12-07
Abstract: 636,932. Glass. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST.-GOBAIN, CHAUNY, & CIREY. Dec. 8, 1947, No. 32382. Convention date, Dec. 7, 1946. [Class 56] Multi-cellulose glass is made from a glass having a coefficient of linear expansion not greater than 65 X 10<SP>-7</SP>. The cooling, after the swelling step, is carried out rapidly and, owing to its low expansion, the final contraction of the internal portion of the glass is insufficient to cause any damage or strain in the outer portion. Two examples of glasses are SiO 2  (i) 80.5 per cent, (ii) 59.0 per cent; B 2 O 3  12.5, 5.0; Na 2 O 4À5, 1.0 ; Al 2 O 3  2.5, 18.0; CaO nil, 7.0; MgO nil, 10.0. Powdered carbon is used as the gasefying agent:
Patent GB-918507-A (GB)
Title: Inhalation anesthetic mixtures
Inventor: DISHART KENNETH THOMAS
IPC: A61K31/02
Filed: 1961-08-01
Abstract: Inhalation anaesthetic compositions comprise oxygen or oxygen and nitrous oxide and from 0.5 to 5% by volume of 2-bromo-1,1,2,2-tetrafluoropropane, the oxygen being present in a proportional amount proper for respiratory purposes. Specification 907,439 also is referred to.
Patent GB-1154195-A (GB)
Title: Ultrasonic Inspection of Hot Metals
IPC: G01N29/28
Filed: 1967-07-13
Abstract: 1,154,195. Testing castings. CONCAST A.G. 13 July, 1967 [14 July, 1966], No. 32401/67. Heading B3F. [Also in Division H4] In a method of coupling ultrasound into a casting 6 for testing it, relative movement is provided between an ultrasonic transducer head 20 and the hot metal 6. The surface is precooled by introducing liquid coolant into a gap 30 between the metal 6 and at least one cooling body 1. The pressure drop of liquid coolant in the gap 30 is adjusted to generate turbulent flow causing the liquid coolant to penetrate into a cushion of vaporized coolant which forms on the surface of the metal 6. By intense contact with the vapour of the cushion heat is extracted from the vapour and hence from the surface of the metal sufficiently to permit the ultrasound to be coupled into the metal 6.
Patent GB-254981-A (GB)
Title: Improvements in or relating to separating apparatus
IPC: B07B7/08
Filed: 1925-12-23
Abstract: 254,981. Soc. des Etablissements Dalbouze et Brachet. Sept. 16, 1925, [Convention date]. Pneumatic separating. - In installations for the pneumatic removal of the fine products obtained by crushing, the regulation of the fineness is adjusted whilst maintaining a constant output of air. In combination with the dust removing vessel of the apparatus is provided a truncated receiver A having a duct situated on the axis a, b, formed of telescopic parts, the lower one B<1> having several openings C the object being to adjust the position of the part B<1> in relation to the receiver A so that a variation in speed of the air may be effected. The adjustment may be made by screwed rods E as shown or by toothed racks. In a modification a lantern arrangement might be used which would allow, by rotation of the telescopic tube B of the uncovering at any level of an opening provided on an inner tube.
Patent GB-174787-A (GB)
Title: Improvements in or relating to devices for raising and lowering the working parts of cultivators, ploughs, and like agricultural implements
IPC: A01B63/28
Filed: 1920-11-17
Abstract: 174,787. Lowson, J. Nov. 17, 1920. Lifting-devices, power.-Comprises improvements in means for raising and lowering the frames of agricultural implements, such as ploughs, cultivators, &c., the travelling-wheels whereof are mounted on cranked axles. Fig. 1 shows a plough, the land-wheel a and the furrowwheet b being mounted on cranked axles c', d with extensions f, f2 connected by a link f<1> so that they move simultaneously. The axle c' of the wheel a is mounted in a bearing g<1>, on the crank arm c', and carries a clutch, shown also in Figs. 5 and 6. This consists of two discs h, o, freely rotatable on the axle c<3>, and a toothed part g<1> fixed to it. These parts are connected by a spring plunger q and pawls r, and are operated by a rope s and lever s<1>. When the plunger q is moved out of the holes p, p<1>, in the parts h, o respectively, the parts h, o move relatively, the springs o' rotating the part o inside the part h, and causing the shrouding r<1> to drop the pawls r into engagement with the teeth g<2> on the part g<1>. This being fast with the axle c' and the wheel a, rotates the part h, and causes the link i<1>, which may be adjusted by the handle n, screw m, and sleeve e, to raise the frame e. Releasing the rope s causes the spring plunger q to bear against the disc o, until the plunger drops into the other hole p<1>, which is diametrically opposite to that from which the plunger was withdrawn. This locks the disc o, and the disc h, continuing to rotate, carries the pawls r up to the shrouding r<1> on the discs. The pawls are thus released from the teeth g<2>, and simultaneously the plunger q falls into the corresponding aperture p in the disc h. The discs h, o are thus connected, and the parts restored to the position shown', except that the plunger q is not in the holes p, v, and the frame e is raised. A connecting-rod t and bell-crank t' raise the rear end of the frame e simultaneously.