baber/WOPTO huggingface dataset:
Patent GB-1176018-A (GB)
Title: Improvements in Definite-Time Relays.
Inventor: SIMPSON MICHAEL CHARLES STEPHE
IPC: H02H3/093
Filed: 1967-08-03
Abstract: 1,176,018. Protective arrangements. ENGLISH ELECTRIC CO. Ltd. 2 Aug., 1968 [3 Aug., 1967], No. 35634/67. Heading H2K A definite-time delay relay arrangement, e.g. for an A.C. power line or generator-transformer equipment, comprises a two-state switch, e.g. transistor TR1, which assumes its "on" state when a voltage proportional to an A.C. quantity of the protected circuit periodically exceeds a reference level, a storage circuit, e.g. a capacitor C1, which charges when the switch is in its "off" state, and a timing circuit 5 which is operable when the switch is on and is reset when the switch is off and the charge in the storage circuit has reached a predetermined magnitude. This magnitude is attained in a period not less than that between exceeding instants at which the voltage proportional to the A.C. quantity exceeds the reference level. This voltage may be derived from voltage transformers or, as shown, from current transformers CT1 ... CT3 and diodes D1. . . D3, a Zener diode ZD1 determining the reference level. Alternatively, one of the current transformers may be an earth fault current transformer, Fig. 4 (not shown) and the reference level may be determined by a "bias" voltage derived from the voltage of the protected circuit, Fig. 5 (not shown). The timing circuit 5 includes a capacitor C2 which charges when a normally conducting transistor TR2 is rendered non-conductive when the charge in the storage capacitor Cl is below the predetermined magnitude. When capacitor C2 is sufficiently charged, a transistor TR3 conducts to operate an output relay (not shown). Instantaneous operation under excessive overload conditions may be provided by a transistor TR4 having its base connected by diodes D6 ... D8 to the current transformers and its collector connected directly to the output relay.
Patent GB-1398857-A (GB)
Title: Electrical circuit breaker
IPC: H01H71/52
Filed: 1972-07-31
Abstract: 1398857 Automatic circuit breakers SIEMENS AG 31 July 1972 [31 July 1971] 35758/72 Heading H1N An electrical circuit breaker comprises a forked switch arm 7, Fig. 2, which, in the breaker open position of Fig. 1, has its extremities 7a, 7b, 7c pressed into stable three-point bearing engagement against guide portions 9, 10 of a housing 2 by means of a spring 8 secured between the switch arm and the housing. Two parallel lugs 12a, 12b of the switch arm 7 in planes mutually perpendicular to the pivotal axis of a rocker operating member 3 have arcuate guide surface edges 13a, 13b for sliding movement over guide portion 10 when the arm 7 is displaced against the action of spring 8 into the breaker closed position of Fig. 3 by anticlockwise movement of a handle 3a of the rocker member 3 which causes two arm portions 3b to rotate so that their arcuate edges 3c engage the upper surface of the switch arm 7. The displacement action is such that end 7c of the arm 7 becomes abuttingly engaged with a latch shaft 11, a first contact 14 carried by the arm 7 is movedinto engagement with a resiliently mounted fixed second contact 16, and the breaker is held closed by frictional engagement of the edges 3c bearing on grooved regions 17a, 17b of the switch arm 7 at a point on a perpendicular 20 drawn through the pivotal axis of the rocker arm 3. From this closed position the breaker can be opened to the Fig. 1 position either by clockwise movement of the handle 3a or it can be automatically released by means of an electromagnetic or thermal tripping device (not described) which is arranged to turn the latch shaft 11 in a clockwise direction whereupon the end 7c is unlatched and the arm 7 pivots around the edge 3c under the action of spring 8 with the guide surface edges 13a, 13b sliding along the guide portion 10 until it assumes the position shown in Fig. 4 from which it is restored to the Fig. 1 position by automatic resetting of the rocker member 3 by means of a torsion spring 5. In a modified embodiment (Figs. 5, 6, not shown) there are additional arm portions 7d to the switch arm 7 and 11c to the latch shaft 11 which coact with arms 27b and 27a respectively of a pivotable coupling shaft 27, axially parallel to the axes of rocker member 3 and latch shaft 11, which is coupled to a similar coupling shaft of an adjacent circuit breaker unit through an intermediate member 30.
Patent GB-810090-A (GB)
Title: Apparatus and process for continuous ion exchange
Inventor: CECIL LAWRENCE KEITH
IPC: B01J47/10
Filed: 1956-11-22
Abstract: <PICT:0810090/III/1> A process for treating liquids by ion exchange comprises continuously introducing liquid to be treated into a treating zone containing granular ion exchange material, maintaining the ion exchange material as a suspension in the liquid under treatment, diffusing air or other gas into the suspension to maintain it against settling and circulate it in the treating zone, continuously withdrawing the treated liquid from the circulating suspension, continuously withdrawing at least partially spent ion-exchange material from the treating zone, regenerating the withdrawn material in a regeneration zone and returning the regenerated ion exchange material to the treating zone.  The process may be applied to the removal of zinc from a waste water containing zinc sulphate, the water being obtained from a rayon manufacturing process; a cation exchange resin is employed and this may be regenerated with sulphuric acid.  In Fig. 1, liquid or slurry to be treated by ion exchange is introduced by conduit 30 into the treating chamber 28, a slurry of ion-exchange material being introduced by conduit 33.  Air or other gas is introduced through conduit 47 perforated plate 43 and porous cloth 45.  A part of the ion-exchange material, which is maintained in suspension by the rising gas bubbles, overflows into the space between the upper portion 23 of partition structure 20 and outer partition 25, and then falls downwardly and re-enters treating chamber 28 at the bottom of partition structure 20.  Tank 10, in which partitions 20 and 25 are situated, is provided with an outlet launder 11 for treated liquid, an effluent conduit 12 leading from launder 11.  The upper portion 23 of partition structure 20 is fitted with an adjustable sleeve 24, providing a variable overflow.  Compressed gas supplied through pipe 52 lifts ion-exchange material through pipe 51 and conduit 53 to an external regeneration zone.  Apparatus is also described comprising 5 treatment units of the type shown in Fig. 1, three of the units being connected in series and providing countercurrent treatment of liquid with ion-exchange material.  In the fourth unit the spent ion-exchange material is rinsed, while in the fifth the rinsed spent ion-exchange material is regenerated.
Patent GB-1005453-A (GB)
Title: Process for the manufacture of safety footwear
IPC: A43B23/08
Filed: 1963-09-12
Abstract: 1,005,453. Moulding footwear. SOC. INDUSTRIELLE DU CAUTCHOUC REGENERE. Sept. 12, 1963 [Oct. 16, 1962], No. 35951/63. Heading B5A. A process for the manufacture of safety footwear of the type incorporating at least one metallic safety shell embodied within a rubberlike substance and formed by pressure moulding blanks of the said rubber-like substance built up around a mould core is characterized in that the material forming an inner blank lying between the mould core and the safety shell is a composition which softens after the material forming an outer blank lying outside said safety shell in the pressure moulding operation. The shell is thus prevented from moving during the moulding operation. The shell is thus prevented from moving during the moulding operation. The inner blank may be formed of a composition which incorporates a filling of natural or synthetic fibres or of one or more layers of fabric impregnated with a rubber-like substance.
Patent GB-619407-A (GB)
Title: Locking inserts for screw connections
IPC: F16B39/28
Filed: 1946-12-07
Abstract: 619,407. Bolt hole linings. AIRCRAFT SCREW PRODUCTS CO., Inc. Dec. 7, 1946, No. 36244. Convention date, Jan. 3. [Class 89 (i)] A thin resilient sheet metal liner for female screw threads is made by helically corrugating a tube or by helically coiling a strip having a single V-shaped corrugation the sides of the corrugation being concave at 20 for resilient flattening between the nut and bolt members to secure a locking effect. The concavity may be internal instead of external and in the'case of strip the gap may be either at the crest or root of the threads.
Patent GB-880267-A (GB)
Title: N:n:n-trisubstituted hydroxyaspartamides
IPC: B01J19/06
Filed: 1958-11-12
Abstract: N, N1, N11-trisubstituted hydroxyaspartamides wherein each of the nitrogen substituents is a C1-18 alkyl, C3-18 alkenyl or C7-10 aralkyl radical, with the proviso that the total number of carbon atoms in said substituents is from 18 to 54 and that at least with respect to the amido nitrogen atoms the substituents are identical, are added to paints for the purpose of promoting thixotropy, or are added to C1-5 alkanols, lubricating oils and gasoline to produce thixotropic gels containing 5 to 25% by weight of the additive.ALSO:The invention comprises N,N1,N11-trisubstituted hydroxyaspartamides having the formula <FORM:0880267/IV (b)/1> in which R, R1 and R11 are C1-18 alkyl, C3-18 alkenyl or C7-10 aralkyl groups, provided that at least R and R1 are identical substituent groups and the total number of carbon atoms in R, R1 and R11 is between 18 and 54 inclusive.  The compounds are prepared (1) by reacting a C1-5 alkyl ester of epoxysuccinic acid with a C6-18 alkylamine, a C6-10 alkenylamine or a C7-10 aralkylamine, or (2) by reacting an N,N1-disubstituted epoxysuccinamide of the formula <FORM:0880267/IV (b)/2> (where R and R1 are identical substituents) with a C1-18 alkylamine, a C3-18 alkenylamine or a C7-10 aralkylamine.  The above compounds may be used to gel hydrocarbons, glyceride esters and C1-5 alkanols.  Epoxysuccinamides of the formula <FORM:0880267/IV (b)/3> are obtained by reacting one mole of a di(C1-5 alkyl) ester of epoxysuccinic acid or epoxysuccinyl chloride with up to 2.1 moles or 4 moles respectively of a C1-18 alkylamine, a C3-18 alkenylamine or a C7-10 aralkylamine.  Dialkyl esters of epoxysuccinic acid are prepared by reacting epoxysuccinic acid with a C1-5 alkanol in the presence of an esterification catalyst or by heating a salt of such acid with the C1-5 alkanol in the presence of sulphuric acid.
Patent GB-784475-A (GB)
Title: Improvements in or relating to method and apparatus for making zipper fastener stringers
Inventor: FIRING OSBORNE
IPC: B21D53/52
Filed: 1955-12-19
Abstract: 784,475. Sliding clasp fasteners. SCOVILL MANUFACTURING CO Dec 19, 1955, No. 36373/55. Class 44 [Also in Groups XXXV and XXXVII] A method of applying zipper fastener elements to a plurality of tapes, consists in applying by a single continuous operating attaching mechanism a group of elements, to a first tape while stepwise feeding the tape. withdrawing the first tape from the attaching mechanism and simultaneously placing a second tape in position to receive fastener elements from the attaching mechanism, applying a group of elements to the second tape by the attaching mechanism while feeding the tape stepwise, and feeding each tape stepwise while in its withdrawn position for a part of the interval while the other tape is receiving fastener elements to provide the gap space between groups of elements. An apparatus for carrying out the method, includes, as shown, and in known form, a slide unit 11 driven from a main shaft 8 and carrying a forming die 15 by which a fastener element is formed and carried to a position astride one of the tapes. Fastener element blanks are sliced by a knife 17 on the slide 11 and clamping tools 13 are actuated by slide bars 14 also driven from the shaft 8. According to the invention, a pair of tapes 21, 22 is fed upwardly over drums 23 and 24 operated stepwise by pawl and ratchet devices actuated from. the shaft 8. A pawl 26 operating drum 23 is held off the drum or engaged therewith at a predetermined time by a bar 28 which is engaged with, or disengaged from. a pin 27. projecting from the pawl 26. by solenoids 33 and 34 respectively. Solenoids 35 and 36 and a bar 30 operate similarly on drum 24. The solenoids 33...36 are controlled by switches 62 and 80 (see Groups XXXV and XXXVII). Tapes 21 and 22 are guided and held in place by tape holders comprising pairs of fingers 37 and 38, Fig. 5 respectively shown in the element attaching and withdrawn positions. Each finger is shown in Fig. 6 and comprises a portion 40 adapted to loosely grip a beaded edge of the tape and a finger 41 on the level of the die 15 which permits the finger 41 to enter a recess on the die below the fastener element to hold the beaded edge in the crotch of the element while being attached. Each pair of fingers 37 and 38 is supported between upper and lower washers 43, 44, Fig. 4, and is pivoted on a bolt 50 carried by a block 52, itself mounted on a shaft 54 for rotary movement by solenoids 59 and 60 which, through an arm 58, alternately shift the block 52 in one direction or the other to place one of the tapes 21 or 22 in position to receive fastener elements and simultaneously withdrawing the other tape from that position.
Patent GB-413211-A (GB)
Title: Improved wrapping machine
IPC: B65B67/10
Filed: 1933-12-27
Abstract: 413,211. Wrapping-machines. LINDBERG, K. E. Y., 15a, Esplanaden, Sundbyberg, Sweden. Dec. 27, 1933, No. 36431. [Class 94 (i).] A machine for wrapping loaves and the like comprises stationary front and rear tables 4, 5 between which a vertically movable table 6 is arranged. The width of the table is substantially the same as, and the length a little less than that of the article. In use, a wrapper is placed so that its edges extend beyond those of the table 6, and the article is placed thereon. A pedal 14 is displaced and pulls down a rod 11, Fig. 2, inside a sleeve 8 supporting the table. A hook 19 on the end of a ratchet 17 engages a sleeve 21, connected by chains 37 to a sleeve 27 carrying end folders 29 pivoted at 33. The folders, which are shaped like scoops, are turned into the position shown in broken lines in Fig. 2 by a fixed rack 32 and pinion 34, and fold the ends of the wrapper about the article. On the continued downward movement of the rod 11, the hook 19 is caused to release the sleeve 21, which allows springs to return the folders to the idle positions. The hook now engages the bottom of the slot 16 and depresses the sleeve 8 and table 6. This causes the front and rear edges of the wrapper to be folded up by the edges of the tables 4, 5. A bolt 13 now engages a lever 42 and swings a folding member 43 inwardly towards the article and turns down the upright standing front edge of the wrapper on to the top of the article, and pushes the article off the table 6 and on to a table 45 beneath the table 5. A yieldingly supported roller 46, which may be heated to cause the waxed wrapper to adhere, folds down the remaining edge and completes the package. The last fold is held down by pivoted members 49, rollers, spring mounted bars, or a weighted cloth. The folders may be formed as hoops. The pedal may be replaced by a mechanical device.
Patent GB-1473102-A (GB)
IPC: F04C18/54
Filed: 1974-08-01
Abstract: 1473102 Rotary positive-displacement fluid-machines INDUSTRY SECRETARY OF STATE FOR 1 Aug 1974 [1 Aug 1973] 36645/73 Heading F1F In a blower, Fig. 2, a rotor comprising a partspherical control portion 16 and an annular portion 11, shown also in Fig. 3, is driven by a pair of coplanar shafts 1,1' pivoted to the rotor by trunnions 4, 4'. The annular portion of the rotor rotates in a channel 8 the width of which varies continuously circumferentially. The annular portion of the rotor contacts the walls of the chamber 8 at two points, 12, 12' and opens and closes two ports, one, 13, of which is shown in Fig. 1, so that fluid is drawn in at one port and expelled at the other. Dimensions and shapes of the various components are given.
Patent GB-332470-A (GB)
Title: Improvements in and relating to road transport apparatus
IPC: B60P1/64
Filed: 1929-10-14
Abstract: 332,470. Riddell, L. F., and Deighton's Patent Flue & Tube Co., Ltd. Oct. 14, 1929. Tipping-wagons.-Relates to means for transferring a truck-body or one or more goods containers a between a road vehicle and a railway wagon or other vehicle or ship alongside. One or more gang planks l are provided coacting pivotally with bars k, k<1> rigid with the sides of the vehicles so as to tie the vehicles together during loading and to permit transfer notwithstanding differences in level of the vehicle platforms. The body or container is mounted on wheels or rollers b which as shown coact with channel guides i, j on the vehicles, but the vehicles may be flat-decked. As shown, removable stops i<3> are provided at the ends of the runners to hold the containers in place. A simple screw-and-nut device may be provided on the road-vehicle. In the form shown, screw-andnut mechanism for transferring the body or container is mounted on a three-way tipping platform d. Bent brackets d<3> permit of the platform d tipping endways on pivots d<2> at either end of the vehicle, or sideways at the side shown.
Patent GB-944963-A (GB)
Title: Improvements in measuring devices
IPC: G01B3/10
Filed: 1961-10-13
Abstract: 944,963. Measuring tapes. V.E.ZETHRIN. Oct. 12,1962 [Oct. 13, 1961], No.36915/61. Heading G1M. A measuring device, particularly for marking out playing fields or tennis courts comprises a series of flexible inextensible tapes or strings 1, 2 of exact lengths connected by preferably rigid rings 3 so that adjacent tapes may be colinear or inclined to each other. Tapes 1,2 may be formed of plastic with a metal filament therethrough and may be graduated. Pegs may be inserted through the rings 3 to anchor them to the ground.
Patent GB-973140-A (GB)
Title: Apparatus for forming shaped articles,such as edible dough products
IPC: A21C11/08
Filed: 1963-09-19
Abstract: 973,140. Moulding biscuits &c. R. J. FAY. Sept. 19, 1963 [Sept. 19, 1962], No. 36947/63. Heading B5A. Edible dough products are formed by introducing dough from a hopper 30 into dies 3, Fig. 4, mounted in cavities 2 on a die roll 1 which is driven by a drive roll 4. To prevent adhesion of the dough to the dies 3, air under relatively low pressure, e.g. 5 lb./sq. inch, is supplied through a valve 32 to the interior of the roll 1 and passes into the cavities 2 and through the porous walls of the dies 3 so as to create a film of air between the dough products and the dies. The excess dough is removed by a scraper 36 and the product is ejected on to an oven band 9 by passing air under higher pressure through the dies 3. The high pressure air is supplied to a chamber 42, in communication with the dies 3 at the ejection station, through a valve 46 operated by a cam member 40. The dies 3 may be formed of a sintered porous metal or other suitable material.
Patent GB-356599-A (GB)
Title: Improvements in and relating to the packing of the pistons of internal combustion engines
IPC: F23R3/28
Filed: 1930-12-08
Abstract: 356,599. Piston rings ; cylinders. JUNKERS, H., 21, Kaiserplatz, Dessau, Anhalt, Germany. Dec. 8, 1930, No. 37002. Convention date, Sept. 16. [Class 122 (i).] An undivided ring 5 has a small radial dimension compared with its axial dimension and is displaceable radially relatively to the piston 3. The ring is constructed of material of low modulus of elasticity and its thickness is such that it adapts itself to the contour of the cylinder wall under the effort of its expansion only, the close fitting being regulated automatically by the flow of heat from the ring to the cylinder wall. The piston may also be fitted with split rings. The cylinder 2 is made slightly smaller in the vicinity of the clearance, so that the diameter is approximately uniform throughout under operative conditions.
Patent GB-1361791-A (GB)
Title: Railway track
IPC: E01B1/00
Filed: 1971-08-06
Abstract: 1361791 Railway track foundation STAHLWERKE PEINE-SALZGITTER AG 6 Aug 1971 [6 Aug 1970] 37003/71 Heading E1G The cavity between preformed concrete slabs 10 (which serve as bearers for rails 12 and are joined together) and the track's foundation 1 is filled with at least one body of either a foamed material or a mixture of a foamed material and a filler. The body may be contained in a foil pocket 16 joined to the slabs 10 and may be either formed in situ or be preformed. The bodies may be of polyurethane, a foamed polyester or a syntactic epoxy resin and may be hollow. Alternatively, the body may comprise pre-foamed polystyrene granules either welded together (e.g. by a steam jet) or adhered together. The filler may be glass. A plastics slab 15 may cover the undersides of the slabs 10. The foundation 1 may be of conventional ballast having edge zones 2 with sealing layers 3 and an edge strip 4. A disclaimer is made to Specification 1296759.
Patent GB-1500007-A (GB)
Title: Rotor for rotary wing aircraft
IPC: B64C27/50
Filed: 1974-08-22
Abstract: 1500007 Rotary wing aircraft WESTLAND AIRCRAFT Ltd 23 July 1975 [22 Aug 1974] 37016/74 Heading B7W A rotary-wing aircraft having folding blades has elastomeric bearings 19 for each blade, and to prevent stressing of the bearings when the blades 11 are folded about pivots 24, the blade root portion 14 is locked to the hub 13 prior to folding. The root portion 14 has a cylinder 23 housing an hydraulic actuator 28 and a piston 29 having teeth 32 complementary with teeth 33 provided on the hub. Splines 30 prevent rotation of the postion in the cylinder, and the blade is locked by extending the actuator. The actual folding of the blade is effected by an hydraulically operable toothed quadrant 26 which meshes with a toothed quadrant 27 associated with the pivot 24. To prevent unwanted movements of the blades when the hub is at rest, a blade droop stop and anti-flap mechanism (38), Fig. 1 (not shown), is provided.
Patent GB-885449-A (GB)
Title: Improvements in or relating to the control of the boundary layer of fluid flow past a solid surface
IPC: B64C21/04
Filed: 1958-11-18
Abstract: 885,449. Boundary layer control. WALLIS, R. A. Feb. 11, 1960 [Nov. 18, 1958], No. 37149/58. Class 4. Apparatus for re-energising the boundary layer of a fluid flowing relatively to a solid surface, irrespective of whether the boundary layer is attached to or has separated from the surface comprises means for injecting from the surface into the boundary layer jets of fluid having components of velocity transverse to the flow of the free stream and parallel as well as normal to the surface, whereby each jet generates a single strong vortex causing intermixing between the boundary layer and the free stream. Fluid is blown through passages 12, 14, which perforate the upper surface of the aerofoil skin 10 near the leading edge. The circulation and the core of the vortex produced by the jet issuing from passage 12 is indicated by 18 and 20 respectively. A wind-tunnel model incorporating vortex-generating jets is also described.