baber/WOPTO huggingface dataset:
Patent GB-1468325-A (GB)
Title: High-tension capacitor ignition systems
IPC: F02P3/08
Filed: 1975-05-05
Abstract: 1468325 Ignition systems ROBERT BOSCH GmbH 5 May 1975 [20 Nov 1974] 18698/75 Heading F1B An ignition system for an internal combustion engine includes an ignition capacitor 45 which is connected to a charging circuit and to a discharge circuit, the discharge circuit including the primary winding 48 of a high tension coil 50 which is connected in series with a controllable electronic discharge switch 47 and whose secondary winding 49 is connectable to at least one sparking-plug 51 and a signal generator 16 is coupled to the control electrode of the discharge switch 47 and is arranged to operate in timed relation with the crank-shaft of the engine. The system further includes a direct voltage converter whose secondary circuit 42 is located in the charging circuit of the ignition capacitor 45 and whose primary circuit 41, connected to a low voltage source, includes, a series combination comprising the primary winding 51 of a control transformer 60 and the switching path of a controllable electronic limiting switch 56, the control path of the limiting switch being located in the circuit of a feedback winding 61 forming part of the control transformer. At least one auxiliary circuit is provided which may be influenced by inductive coupling from the primary circuit of the direct voltage converter and which by means of at least one controllable electronic auxiliary switch 62 serves to change over the limiting switch 56, whose central path is connected to the feedback winding 61, into its non-conductive state. The system further includes a control circuit 80 for the provision of secondary sparks which control circuit incorporates a monostable multi-vibrator MV and an astable multi-vibrator AV the monostable multi-vibrator being arranged to be brought into its unstable state at the instant of ignition and to maintain the astable multi-vibrator in its "on" state for the duration of this unstable state and the astable multi-vibrator AV during each of its relaxation operations, which  automatically follow one another, being arranged to make the direct voltage converter conductive for a charging operation and to subsequently make the discharge switch conductive to supply a secondary spark. The unstable period of the monostable multi-vibrator and/or the frequency of the astable multi-vibrator are regulable in dependence upon operating parameters of the engine. Control according to engine speed and/or battery voltage is referred to.
Patent GB-996326-A (GB)
Title: Polymerisation catalysts and their use for polymerising unsaturated organic compounds
IPC: C08F36/04
Filed: 1962-05-15
Abstract: An aliphatically unsaturated organic monomer is polymerized in the presence of a catalyst obtained by reacting together (1) a silane of general formula HnSiR4- n, in which each R represents a monovalent hydrocarbon, halohydrocarbon, alkoxy, or haloalkoxy radical and n is an integer from 1-4 inclusive, (2) 0.02 to 2.0 mols. per mol. of the silane of a compound of Ti, Zr, Hf, Th, V, Nb, Ta, Pa, Cr, Mo, W, U, Fe, Co, Ni, Pt, Pd, Os, Ir, Rn and Rh, and (3) 0.001 to 5 mols. per mol. of the silane, of a halide, oxyhalide, alkoxide, alkoxyhalide, aryloxyhalide of B, Al, Ga, In and Tl.  Monomers mentioned are ethylene, propylene, isobutylene, 1-butenes, butadiene, styrene, tetrafluoro-ethylene, 1-hexanes, 1-octanes, butene-2, pentene-2, hexene - 2, heptene - 3,2 - methylbutene - 1,2- methylhexene - 1, 2 - ethylheptene - 1, 1 : 5-hexadiene, 1 : 4 - pentadiene, 1 : 4 : 7 - octadiene, cyclohexene, isoprene, 2 : 3-dimethylbutadiene, 2-methoxybutadiene, 2-phenylbutadiene, acrylonitrile, methylacrylate, methyl methacrylate, vinyl chloride, 2-methyl-5-vinyl pyridine, 2-vinyl pyridine, vinyl acetate, 4-methylpentene-1,4 : 4 - dimethylpentene - 1, dodecene-1 and vinyl cyclohexane.  The polymerization may be carried out continuously or batchwise at 40-50 atmospheres between 30 DEG  and 200 DEG  C. is desired in the presence of a solvent.  Specification 823,483 is referred to.ALSO:A polymerization catalyst is made by reacting together (1) a silane of general formula HnSiR4-n, in which each R represents a monovalent hydrocarbon, halogenohydrocarbon, hydrocarbonoxy or halogenohydrocarbonoxy radical and n is an integer from 1-4 inclusive, (2) 0,02-2,0mols per mol of the silane of a compound of Ti, Zr, Hf, Th, V, Nb, Ta, Pa, Cr, Mo, W, U, Fe, Co, Ni, Pt, Pd, Os, Ir, Ru and Rh, and (3) 0,001-5,0 mols per mol of the silane, of a halide, oxyhalide, alkoxide, alkoxyhalide, aryloxide or aryloxyhalide of a Group III element, i.e. B, Al, Ga, In and Tl.  Numerous examples of components (1) are given.  Component (2) may be a halide, alcoholate, acetyl acetonate or organometallic compound.  In examples the catalyst is made from diphenyl silane, aluminium trichloride and titanium tetrachloride, TiCl3 or VCl4.  Specification 823,483 is referred to.
Patent GB-765803-A (GB)
Title: Improved cooking oven
Inventor: PRASHER CHARLES LINDSAY
IPC: F24C15/02
Filed: 1954-06-25
Abstract: 765,803. Cooking ovens. NORTH THAMES GAS BOARD. July 7, 1955 [June 25, 1954], No. 18747/54. Class 126 A domestic oven has a door which is detachably carried by a frame supported by a part of the oven so as to pivot about a horizontal axis below and adjacent to the bottom of the door, the pivoting of said frame permitting movement of the door to open and closed positions. In the oven shown in Fig. 1 the door 6 is detachably carried by a frame comprising members 2, 2, 4, sockets 5 on the member 4 engaging pins 7 on the door when the latter is in place. The members 2 are pivoted to front upright members 3 of the base of the oven and are spring-loaded towards "door closed" position. One member 2 carries a rigidly attached member 13 to which is pivotally connected a rod 12. This rod transmits to the member 2 and hence to the door, when the latter is in place, the rocking movement of a lever 11 pivotally attached to the oven. This lever is rocked to "door open" position on depressioii of a foot pedal 9, via a pivotallyconnected rod 10. In a modification the frame comprises a bar 18, Fig. 2, and members 20, the 'latter being resiliently connected through springs 23 to the oven-base. Lugs 22 attached to the front upright members of the oven carry a hinge rod 21 on and about which the frame pivots. Each member 20 carries an arm 24 having notches 29 and pivotally attached at 25. Each arm in the "door off" position shown in Fig. 2 is held so that a notch 29 is engaging a pin 30 fixed to the associated oven front upright member by a spring 27 acting between a stop 28 attached to the associated member 20 and a head 26 carried by the arm. The oven door 15 is provided internally with bars 17, two U- shaped members 16 and two members 31 and is slotted near both vertical edges at 19 so that the members 20 may be accommodated. When placing the door in position on the frame the bars 17 and members 16 embrace the bar '18, whilst each member 31 causes a head 26 to be depressed such depression moving its associated arm 24 away from its associated pin 30, thus allowing the door to be closed relative to the oven.
Patent GB-237620-A (GB)
Title: Improvements in spools
IPC: B65H75/14
Filed: 1925-07-23
Abstract: 237,620. Belden Manufacturing Co., (Assignees of Wermine, H. H.). July 26, 1924, [Convention date]. Spools for winding wire comprise a body 10 having cuter flanges 11, 12 and at one end an integral inner flange 14, and at the other a disc or washer 17 abutting a shoulder 18 which is pressed over the disc at 19. An internal tube 13 is secured by being pressed out or spun at its ends. The openings at 15 and in the washer are preferably of polygonal form to prevent rotation, and the ends of the tube 13 may be knurled. The body 10 is preferably of aluminium alloy, bakelite, or other suitable material, and the tube 13 and washer 17 of steel.
Patent GB-313966-A (GB)
Title: Improvements relating to emulsifying agents and emulsions prepared therewith
IPC: C10M173/00
Filed: 1929-06-19
Abstract: 313,966. B÷hme Akt.-Ges., H. T. June 20, 1928, [Convention date]. Sizes.-Aqueous emulsions of oils, fats or other substances for use as sizes are prepared by the use as emulsifying agents of mixtures of certain esters of sulpho fatty acids and organic colloids such as albumens, glues, or decomposition products thereof, or alkylated celluloses or other polysaccharides. The esters employed are esters of aliphatic or aromatic alcohols or phenols with sulphonated hydroxy or unsaturated fatty acids or glycerides of such acids. Esterification may take place in either or both the sulpho-group and the carboxyl group. Esters of the higher alcohols or phenols may be rendered more soluble by the addition of a lower aliphatic alcohol, e.g. 10 per cent of ethyl alcohol. Specification 306,116,. [Class 2 (iii), Dyes &c.], is referred to.
Patent GB-403145-A (GB)
Title: Electric watch
IPC: G04C3/06
Filed: 1932-07-04
Abstract: 403,145. Electric watches. BULLE, M. P. FAVRE-, 15, Rue Gambetta, Boulognesur-Seine, France. July 4, 1932, No. 18839. [Class 139.] In an electric watch wherein the electromagnetic system both drives and regulates the mechanism, the balance comprises a non- magnetic arbor 7 rigid with a magnetic sleeve 8 carrying radial pole-pieces 11, 12, (which may be polarised), coacting with fixed radial poles 4, 5 carried by a sleeve 3 rigid with the framework 1. During clockwise rotation of the balance arbor 7, Fig. 4, a catch 34 thereon wipes idly past a spring 29, secured to a pillar 32, Fig. 3, and carrying a blade 31 normally sprung to abut against a stop 35. During anticlockwise rotation of the balance, the catch 34, Fig. 7, moves both spring 29 and blade 31 to close at 45, 46 the circuit of coil 6, Fig. 1. The contact 45 on the blade 31, Fig. 9, is bevelled to secure a better contact with the block 46, carried by an insulated spring 47 coacting with a stop 48. The circuit is only closed momentarily, the blade 31 swinging back to normal as the catch 34 slips past the - spring 29. The minute hand arbor is driven through worm gearing 26, 27, by a ratchet wheel 18, advanced by a spring pawl 36 carried by blade 31, and held by a spring stop pawl 41 adjustably fixed to pillar 32. In order to mount the minute hand arbor 54, Fig. 12, parallel to that of the driving ratchet 49, worm gearing 50, 51, 53, 54 is included.
Patent GB-1391783-A (GB)
Title: Frequency-selective electrical circuit arrangements
IPC: H03F1/34
Filed: 1971-06-04
Abstract: 1391783 Tuned amplifiers; oscillators REDAC SOFTWARE Ltd 2 June 1972 [4 June 1971] 18965/71 Heading H3T An electrical circuit arrangement comprises a signal translating device 10, Fig. 1, having input and output circuits, and means, 16, 18 respectively, providing shunt and series capacitive feedback paths between the output and input circuits of the device such that the phase shift introduced by one feedback path is offset by that introduced by the other feedback path the phase-shifts substantially balancing each other at a predetermined frequency. The Specification gives a mathematical exposition, assuming the emitter bias resistor 20 is of large value and so can be neglected, and showing that the output at the collector of transistor 10 is in phase with the input voltage at one unique frequency. It is stated that capacitor 18 should preferably be # times the capacitor 16 in value, where # is the base to collector current gain of transistor 10. In a modification, the transistor 10 is replaced by a Darlington pair 10A, Fig. 5, while the capacitor 18 is connected across the emitter bias resistor 26 via a Darling- ton pair 25 whereby its effective value is multiplied, so making the arrangement suitable for construction as an integrated circuit.
Patent GB-458184-A (GB)
Title: Improvements in or relating to circular knitting machines
IPC: D04B9/10
Filed: 1935-07-03
Abstract: 458,184. Knitting- machines. SPIERS, Ltd., W., Walnut Street, SPIERS, E., Rookford, Wimbourne Road, and HURD, J. C. H., Laneham, Kirkland Road, all in Leicester. July 3, 1935, No. 19044. [Class 74 (ii)] A circular machine is provided with one or more circular series of latch-engaging instruments that are projected between the hooks and associated latches so that by reason of such entrance, or endwise movement of the needles, the latches are opened, insertion of the instruments being facilitated by providing one or more dwell portions on the needle-operating cams. The latch opening members may be fixed or movably mounted in a rotary or stationary trick ring, disc or other carrier located inside or outside the needle cylinder, each instrument being formed with a pointed or hooklike extremity according to the position of its carrier. In the construction shown in Fig. 1, latch-engaging instruments 7, one for each needle 3, are obliquely disposed in a trick ring 8 adjustably mounted on the verge 6 of a superposed cylinder machine, the instruments being projected seriatim by a cam 9 so as to open the latches prior to transference of the needles from one cylinder to another. Fig. 7 shows a modification in which latch opening instruments 21 formed with a hook-like ends 21b are mounted in a rotary carrier outside the needle circle eccentrically thereto and driven at the same linear speed as the needle cylinder, the members 21 acting on the closed or partly closed latches with a pulling action. Specifications 15008/00, [Class 74], 24290/12, [Class 74 (ii)], and 391,212 are referred to.
Patent GB-1075958-A (GB)
Title: Gas turbine engine
Inventor: SLATTERY SIDNEY EDWARD
IPC: F04D27/02
Filed: 1966-04-29
Abstract: 1,075,958. Gas turbine engines; gas turbine combustion equipment. ROLLS ROYCE Ltd. April 29, 1966, No. 19051/66. Headings F1G and F1L. A gas turbine engine comprises an annular flow duct 11 within which are mounted in flow series a low pressure compressor, a high pressure compressor, combustion equipment, a high pressure turbine and a low pressure turbine, there being fuel injectors 27 for injecting fuel into the combustion equipment, also a plurality of angularly spaced apart, radially-extending hollow struts 31 which are disposed downstream of the high pressure compressor and upstream of the fuel injectors, the hollow struts extending into the annular flow duct 11 and having inner ends 33 which are disposed adjacent to the inner wall 12 of the annular flow duct so as to receive air under pressure flowing along the inner wall, there being conduit means for passing to a point externally of the engine air under pressure which flows radially outwardly through the hollow struts. In the embodiment shown, the annular flow duct 11 is defined between inner and outer walls 12, 13 and the combustion equipment comprises an annular flame tube 18 which is spaced from the walls 12., 13 so as to define air flow passages 25, 23. Fuel is supplied to the combustion equipment through a conduit 26 and fuel injectors 27. A series of hollow radial struts 31 extend radially across the flame tube 18 upstream of the fuel injectors 27, the struts extending to the engine outer casing 14 where they are supported on radial studs 32, the struts which are secured to the flame tube thus serving to locate the upstream end of the flame tube. The radially outer ends of the struts communicate with an annular manifold 34 so that air tapped from the inner annular passage 25 may flow radially outwardly through the struts 31 to the annular manifold 34, the air then passing through duct 35 to a point of use such as for use in aircraft cabin pressurization. Further air under pressure is tapped from the flow adjacent the inner wall 12 through openings 36 into the annular chamber 37, this air then flowing radially outwardly through the hollow compressor outlet guide vanes 17 to the manifold 34 and thence through duct 35.
Patent GB-830113-A (GB)
Title: Centrifugal extractor
IPC: D06F49/00
Filed: 1958-06-13
Abstract: 830,113. Centrifugal driers. KRANTZ, H., and KRANTZ, W., [trading as KRANTZ, H., [Firm of]]. June 13, 1958 [June 15, 1957], No. 19066/58. Class 34(2) A centrifugal extractor casing 2 has a lid 3 tiltably mounted on an axle 6 and counter-balanced by springs 4, and a rotary basket 9, driven by a motor 8, has a lid 10 which can be rigidly connected to the basket by locking members 12. A central pivot 13 on lid 10, having a safety lock. covered by a cap 34, extends through one end of an arm 14 which carries the lid 10, the arm being pivoted on the axle 6. The weight of the lid 10 and arm 14 are nearly balanced by a spring 18 about axle 6, which spring is tensioned when the lid is closed. A wedge 15 on the arm 14 has oblique faces 21 which act on bolts 22 vertically guided in the arm 14 to engage the underside of a plate 16 on central pivot 13 and a hollow core 23 on the underside of arm 14 couples with a core 24 on lid 10 around the pivot 13, under the action of a bell-crank lever 20. The lever 20 allows the arm to couple or uncouple the arm 14 and lid 10 so that the lid is free to rotate with the basket 9. The arm 14 is locked to the casing at 32 when uncoupled from the lid 10 by a sprung latch 31 pivotally attached to the arm 14 and only released after .the cores 23, 24 uncouple, which is effected by rods 25, 27 interconnected at 28, attached to the wedge 15 at one end and the latch 31 at the other.
Patent GB-112446-A (GB)
Title: Improvements in Diaphragms for Electrolytic Cells.
IPC: H01M2/18
Filed: 1917-12-24
Abstract: 112,446. Chemische Fabrik Weissenstein Ges., and Walter, R. Dec. 19, 1916, [Convention date]. Diaphragms have staggered grooves in opposite faces, Fig. 2, or are made with curved or angular corrugations, in order to decrease their thickness and increase their area, while their strength is undiminished or even increased. The grooves &c. may follow straight, broken, curved, or retraced lines, symmetrically arranged; for.instance, they may have the form shown in Fig. 4, or may follow concentric circles. Flat plates may have plain thick borders. A porous cell is shown in Fig. 6. It may be moulded by extension.
Patent GB-665708-A (GB)
Title: Refrigerator cabinet construction
IPC: F25D17/06
Filed: 1949-07-20
Abstract: 665,708. Refrigerators. CALUMET & HECLA CONSOLIDATED COPPER CO. July 20, 1949 [Aug. 2, 1948], No. 19118/49. Class 29 The food storage compartment 15 of a refrigerator has an opening 36 in its floor 17 beneath which is supported the evaporator 31 of a refrigerating unit, the condenser 30 and sealed motor - compressor 29 of which are located in a lower machinery compartment 16. A motor 32 in the unit drives fans 33, 34 forcing air over the evaporator 31 and condenser 30 respectively, the fan 33 circulating the cabinet air upwardly through an ice-making compartment 22 and through holes 43 in a partition 21 to the food storage compartment, from the top of which the air returns to the fan through side ducts 24 and a space 19 beneath the ice-making chamber. The ice trays 42 are supported immediately above the evaporator 31 by a grille 41. Condensation from the evaporator is drained to a tray 46 beneath the condenser by a pipe 45 and dissipated by the fan 34. The refrigerating unit is the subject-matter of Specification 664,971.
Patent GB-572296-A (GB)
Title: Arrangement for feeding coal to the furnaces of locomotives
IPC: F23K3/00
Filed: 1939-06-30
Abstract: 572,296. Feeding furnaces from hoppers. SOC. ANON. J. COCKERILL. June 30, 1939, No. 19132. Convention date, July 5, 1938. [Class 78 (i)] A throwing-shovel 5 is retracted slidably by the rotating cams 7 to compress the spring 9 and springs back when released to hurl the fuel into the fire-box 2 of a locomotive. Three cams 7 on the shaft are of different length so that the spring is compressed to different degrees and the fuel thus delivered to different zones in the length of the fire-box in turn. The fuel is delivered from the hopper 3 to the shovel by the rotary pocketed member 4. Several shovels in line across the width of the fire-box may be operated simultaneously from one cam shaft 8.
Patent GB-1487526-A (GB)
Title: Cutting blade package
IPC: B65D75/36
Filed: 1976-05-10
Abstract: 1487526 Cutting blade package PHILIP MORRIS Inc 10 May 1976 19153/76 Heading B8C A cutting blade package comprises a tray 12 having an indented elongated pocket with a bottom wall 14 and an outer open face, a pair of spaced posts 30 and 31 extending upwardly from the bottom wall 14, a blade 19 threaded over the posts, means, e.g. 40, 41 and 42, 43, for releasably holding the blade on the posts, and a supporting card 10 secured over the open face of the tray 12. As shown, a tray, or blister, 12 contains a single blade 19 with a longitudinal slot 20 having a generally round central hole 23, and a generally diamond-shaped hole 21, or 22 adjacent each end through which the posts 30, 31 respectively extend. The blade 19 is supported upon cross ribs 37, 38 and is releasably retained behind lugs 40, 41, and 42, 43 respectively on the posts 30, 31. Each post (50, 52), Fig. 6, not shown, has a single lug (51 or 53) respectively. The card 10 is provided with an access panel 54 defined by weakened lines 55, and a scalloped edge 54a which facilitates the insertion of a finger nail to start the peeling away of the panel 54. An area of the front face of the card 10 may be coated with heat-sealable material for heat-sealing the plastics tray 12 thereto. Safety barriers for the cutting edges of the blade 19 are provided by a pair of ribs 60, 61. Alternatively, the side walls 62, 63 of the blister may be formed to lie close to the blade-cutting edges. The card 10 may be heatsealed to the top of one, or both, of the posts 30, 31 to provide the releasable blade-holding means in which case the lugs 41-43 may be omitted. In a modification, Fig. 7, not shown, the blister (70) has a middle post (73) with flexible lugs (74, 75) and two end posts (71, 72) one, or other, of which may be omitted. In another arrangement, Figs. 9, 10, not shown, the releasable blade-holding means comprises a plastics sheet (84), which is preferably heatsealed to the removable panel (87) and has projecting tubular elements (85, 86) telescoped over posts (81, 82) respectively. Holes 11 in the card 10 are for hanging the package from a support. The blade may be of the kind having two offset cutting edges. For easy release of the blade the diametral dimension of the lugs 42, 43 is correspondingly less than that of the lugs 41, 42.
Patent GB-221783-A (GB)
Title: Improvements in carburettor float chamber apparatus
IPC: F02M1/00
Filed: 1924-08-12
Abstract: 221,783. Varvel, S. Le F. Sept. 14, 1923, [Convention date]. Spray carburettors. - The float needle valve 14 is provided with a magnetizable cap 15 and is lifted by an electromagnet 17 to flood the carburettor for starting, the circuit to a lamp or other indicator on the dashboard being simultaneously closed. The closing of the indicator circuit is effected by the cap 15 engaging a non-magnetic slidable rod 18 which, through a spring - returned plug 19, forces a spring plate 21 on a binding post 22 into contact with a binding post 23.
Patent GB-1383829-A (GB)
Title: Slat-type conveyor
IPC: B65G17/10
Filed: 1972-04-26
Abstract: 1383829 Endless slot-type conveyers UNIVERSAL CONVEYER CO Ltd 9 May 1973 [26 April 1972] 19244/72 Heading B8A Slats 1 of an endless conveyer are upwardly turned at leading and trailing ends 1b, and at adjacent ends of successive slats, are covered by an inverted channel member 4 to provide a seal at the joint of the slats. The member 4 is retained resiliently a member 5 and spring 7. Side wall portions 10 are welded to each side of each slat, and co-operate with similar wall portions 11 welded to the members 4. Inverted channel members 9 are also secured to each side of each slat and co-operate with depending sidewalls 12 mounted on the conveyer frame. Each slat is secured to link chains 2 by L-shaped brackets 10. The members 4 may alternatively be disposed under the joints of the slats (on the upper run) instead of above, as shown.