baber/WOPTO huggingface dataset:
Patent GB-813481-A (GB)
Title: Improvements relating to apparatus for the measurement of optical density
Inventor: WALKER PETER MARTIN BRABAZON
IPC: G01N21/59
Filed: 1954-05-27
Abstract: 813,481. Densitometers. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 27, 1955 [May 27, 1954], No. 15764/54. Class 40 (3). In a photo-electric densitometer the density of parts of a specimen is compared with that of a variable optical attenuater so as to provide a photo-cell output for moving a marker over a recording medium to indicate thereon the density of the part of the specimen being examined. As shown, light from a source Z is focused on to a specimen, carried by a table Q and on to an optical wedge, carried by a holder L, and the light from the wedge and the specimen is caused by a chopper to fall alternately on a photo-cell G. The output from this photocell is amplified at 7, 8 and fed to a servomotor 6 which moves the holder L until the density presented to the light by the wedge equals that of the specimen. Connected to the holder L is a marking pen 0 which records on a table S a trace representing the variation in density of the specimen as the table Q carrying it is moved. Tables Q and S are interconnected by a linkage so that they may move together under the control of a lead screw in a direction perpendicular to the direction of movement of the holder L.
Patent GB-682624-A (GB)
Title: Improvements in or relating to building blocks
IPC: E04B2/02
Filed: 1950-06-23
Abstract: 682,624. Building units. PASTORE, C. F. June 23, 1950 [June 25, 1949; Oct. 27, 1949], No. 15802/50. Class 87(i) An apertured building unit comprising a number of similar or disimilar elements secured together is formed in its walls with vertical and horizontal holes and grooves. In one construction, Fig. 1, the unit is built up from similar elements 1, 1<SP>1</SP> 1<SP>11</SP> 1<SP>111</SP> each having apertures 2, vertical holes 5, 7, 8, 11, 13, 14, 15, grooves 6 to form horizontal holes, horizontal grooves 9, 10, 12, 16 connecting the vertical holes, and vertical end grooves 17, 18. The front and rear faces of each element may be bevelled continuously or at intervals as at 19. In a modification, Fig. 5, the unit comprises front and rear walls each made up of four slabs, 20 flat on one face and grooved on the other, spaced apart by perforated and grooved transverse elements 3, 4. In other constructions, the unit comprises two layers of blocks provided with vertical holes and of U-, L- straight or similar form in plan aranged so that the joints in the two layers do not coincide. The unit, Fig. 7, made up of blocks 23, 25, 27, 28 may be of rectangular form, or one or both ends may be recessed and inclined as Fig. 10. A corner unit is provided with a short extension at right angles to the main part of the unit. The various elements may be of the same or different materials.
Patent GB-374616-A (GB)
Title: Means for controlling arc rectifiers
IPC: H02M7/15
Filed: 1931-05-29
Abstract: 374,616. Rectifying alternating current. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. May 29, 1931, No. 15809. Convention date, July 26, 1930. [Class 38 (ii).] In mercury arc rectifiers in which regulation is effected by control electrodes or grids so energized as to enable starting of the arc at each cycle of anode voltage to be retarded to an adjustable extent, the control potentials comprise an alternating component of fixed magnitude and phase in relation to the anode voltage and a unidirectional component of a magnitude adjustable either manually or automatically in accordance with the output voltage of the rectifier. In the arrangement shown in the unnumbered figure, the grids n1, n2, n3 are energized by a transformer e zig-zag connected on the primary side to impart a 90‹ lag to the alternating component of the control potential and the adjustable unidirectional component of the control potential is derived from a potentiometer q fed by an auxiliary rectifier o. A potentiometer r connected across the main rectifier output terminals may be used to provide automatic regulation. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the arrangement shown in Fig. 1 (Cancelled) in which the anodes f1, f2, f3 are fed through a transformer b, the control electrodes d1, d2, d3 being in the form of conducting bands surrounding the arc paths and energized by a transformer e (zig-zag connected on the primary side to impart a 90‹ lag to the alternating component of the control potential) in series with a battery-fed adjustable potentiometer h. A battery l connected as shown may be provided to impart automatic regulation. This subject-matter does not appear in the Specification as accepted.
Patent GB-1424169-A (GB)
Title: Double seating valve
IPC: F16K1/44
Filed: 1974-04-10
Abstract: 1424169 Valves O TUCHENHAGEN 10 April 1974 15932/74 Heading F2V A valve comprising a common seat 4 and two closure members 5, 6 defining a leakage collecting chamber 7 therebetween includes a hollow spindle 9 through which the collected fluid flows to the valve exterior and a tube 15 within spindle 9 for the supply of cleaning fluid 17 to chamber 7. In the closed position of the valve, surfaces 5a, 6a on the closure members are spaced apart but are moved into sealing engagement by an actuator attached to spindle 10 when valve opening or cleaning is required.
Patent GB-334507-A (GB)
Title: Improvements in and relating to captive resilient balls for playing games
IPC: A63B43/00
Filed: 1929-05-23
Abstract: 334,507. Laurence, R. V. May 23, 1929. Balls.-A captive resilient shell attached to a restraining cord by a loop c<1> passing through perforations c in the outer cover a and wall b of the ball is provided with a partition e for isolating the point at which the perforations are made from the interior of the ball to prevent the escape of compressed gas. Layers of fabric d are inserted in the ball to strengthen it at the point where the perforations are made. The partition e may comprise a single piece of indiarubber the edge of which is solutioned to the interior surface of the ball, or the ball may be so moulded during manufacture as to provide a partition integral with the wall of the ball and may be reinforced by the application of a further piece of rubber e<1>. Instead of the partition, a baglike body f of flexible material may be provided, Fig. 4. The loop c<1> for connecting the ball to the restraining cord can be replaced by a disc g incised to provide a free portion g<1>, Figs. 5 and 7, or by a flexible body h inflated through the tube h<1> and having attached to it the loop c', Figs 8 and 9. A recess i,. Fig. 5, may be provided in the ball in order that the loop to which the restraining cord is attached may project as little as possible beyond the surface of the ball.
Patent GB-803834-A (GB)
Title: Door latch
IPC: E05F5/02
Filed: 1956-05-24
Abstract: 803,834. Latches. KOK, C. J. M. May 24, 1956 [May 31, 1955], No. 16072/56. Class 44 In a door latch, one arm 7 of a bell crank lever, pivotally attached to the latch-case, constitutes a latch bolt which engages a recess 15 in the door frame when the door is closed; the other arm 8 is connected by at least one rod 9 to a body 10 guided slidably in a rectilinear manner in the latch casing 1. and is acted on by one or more springs 13 which urge the lever into the closed position and which are fixed to the body. As described, the bell crank lever is pivoted to two lugs 6 by a pin 5. Two connecting rods 9 link the arm 8 of the lever to journals 11 attached to a cylinder 10 whicth is slidable upon a piston the rod 14 of which is secured to the latdh-case by a pin 12. Srprings 13, secured between the lugs 6 and the journals 11, urge the latch into the locked position when the lever is rocked past its dead centre position. The cylinder 10 is filled with liquid whidh passes through perforations in the piston when the latch is actuated and thus constitutes a damping device. A liquid pasty mass may be used in place of the liquid.
Patent GB-610036-A (GB)
Title: Improved methods of and apparatus for evaporating liquid
IPC: B01D1/00
Filed: 1945-06-25
Abstract: 610,036. Heating liquids by dielectric losses. COMMUNICATIONS PATENTS, Ltd., and STANLEY, E. C. June 25, 1945, No. 16098. [Class 39(iii)] In a method of evaporating liquids, e.g. for the concentration of penicillin solutions or certain fruit juices, the liquid is made to circulate and is heated by a high frequency electric field in a zone which does not include the position at which consequent evaporation takes place. In an embodiment, a solution to be concentrated is accommmodated in container of glass or the like comprising two bulbous foam traps 1, 2 with a lower tubular portion 5 connected by a conduit 6 to a vessel 8 into which the concentrated solution spills when it rises above its normal level 7 in the container. The container is connected by a conduit 9 to a suction pump which reduces the pressure in the container. This connection may include a condenser and condensate receiver. The vessel 8 is connected to the conduit 9 by a conduit 10. A controllable supply of solution is drawn from a vessel 11 through a conduit 12 which is terminated by a capillary jet 13 in the container. A bye-pass conduit 18, extending externally from the bottom of the tubular portion 5 enters the container and opens above, or a little below, the level 7. A valve 20 regulates an inlet 19 for atmospheric air which circulates the solution up the bye-pass and so down the tubular portion 5 about which are disposed a pair of electrodes 14, 15 connected to a high frequency oscillator 16. A drainage valve 21 is provided. In a modification the bye-pass is arranged concentrically within the tubular portion 5 and emerges above the level 7 of the solutions. The degree of concentration of the solution may be determined by suitable control of the admission of solution and of the electric supply to the electrodes.
Patent GB-564123-A (GB)
Title: Improvements in chimneys
IPC: F23L17/02
Filed: 1942-11-18
Abstract: 564,123. Chimneys. DARBY, H. G. Nov. 18, 1942, No. 16284. [Class 25] A chimney flue 12 is built up of a number of tubular elements 13 connected by spigot and socket joints and terminates in a tubular stack portion 15 having a box-like discharge portion 19 provided with discharge openings 20. The portion 19 may be parallel to the plane of the roof, as shown, or it may be at right angles to the stack portion 15. A flange 18 on the stack portion is adapted to be secured to the roof. The interior of the stack portion may be provided with helical ribs 17. Specification 564,122 is referred to.
Patent GB-199592-A (GB)
Title: Improvements in lifting jacks and haulers
IPC: B66F1/00
Filed: 1922-06-12
Abstract: 199,592. Clews, C. E., and Beere, A. W. June 12, 1922. No Patent granted (Sealing fee not paid). Jacks; lever load-handling machines.-In ratchet jacks the inner end 5a of the lever carrying the load-raising pawl 7 bears aginst the load-holding pawl 8 and forces it into contact with the lifting pillar 2, or chain, when the outer end of the lever 5 is raised. When a chain is used its passage through the casing is facilitated by a strip 21 at one side of the casing on which run the chain rollers 3<a>. The pillar 2 is formed with a groove 24 to receive the strip 21 in order that it may be used instead of the chain. Specification 151,875 is referred to.
Patent GB-911757-A (GB)
Title: A self-retaining tread device for use on a heel of an article of footwear
IPC: A43C13/02
Filed: 1958-05-21
Abstract: 911,757. Heel caps. CONROY, G. M. June 15, 1959 [May 21, 1958], No. 16320/58. Class 17 (3). A resilient hub cap has thin flexible walls 2 which may be doubled back over the base 1, with gaps 3 in the top of the front wall 2a adjacent the junction of the front and side walls which facilitate doubling back of the walls and define a free upper portion 2b of the front wall. The cap may be retained on the shoe by clips 4 which engage over the sole of the shoe and/or a screw passing through the base. The cap may be moulded integrally or built-up.
Patent GB-458469-A (GB)
Title: Rivet set cooling device
IPC: B25D17/22
Filed: 1936-06-11
Abstract: 458,469. Riveting; percussive tools. NELL, G. M., 6201, 2nd Boulevard, Detroit, Michigan, and CHICAGO PNEUMATIC TOOL CO., 6, East 44th Street, New York, both in U.S.A. June 11, 1936, No. 16336. [Class 83 (iv)] [See also Group XXIII] A riveting-machine com prises a cylinder 12, a pistor 11 reciprocating therein, a bushing 16 in a bore in the front end of the cylinder, anc a rivet set 14 receiving impacts from the piston 11 the set 14 and the front end of the cylinder being cooled by fluid discharged through passages 25 formed as grooves in the bushing 16. The cooling fluid may comprise the exhaust from the cylinder 12 which is delivered through a passage 18 in the cylinder wall and an annular channel 24 in the bushing to the grooves 25. The retaining clip 15 for the set 14 is alsc cooled by the fluid. Specification 176,338, [Class 124], is referred to.
Patent GB-846747-A (GB)
Title: Improvements in or relating to crystal diodes
IPC: H01L21/00
Filed: 1957-05-23
Abstract: 846,747. Semi-conductor rectifiers. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 23, 1957 [May 26, 1956], No. 16395/57. Class 37. In a crystal diode comprising a thin body of semi-conductor material provided on one side with an ohmic contact and on the other side with a rectifying contact, at least one of the contacts being an alloy contact, the geometrical proiection of the ohmic contact perpendicular to the said other side lies outside the boundary of the rectifying contact. As shown, Fig. 1, to opposite sides of a disc 1 of p-type silicon are alloyed an aluminium ohmic contact 4 and a rectifying contact 2 of gold-antimony alloy so that the projection AB of the ohmic contact 4 is at a minimum distance d from the rectifying contact. The rectifying contact may be centrally disposed on the disc with an annular ohmic contact on the other side. The distance d may be equal to or greater than the thickness of the semi-conductor body, and may be reduced if the ohmic contact is diffused, e.g. a layer of gallium diffused into the surface of the disc at 1100‹C. and electrolytically copper-plated and supplied with a soldered copper supply wire. In Fig. 4, the ohmic contact 1 is U-shaped, the arms of the U being alloyed to the body 2 and the rectifying contact 4 being disposed between the arms on the other side.
Patent GB-1261891-A (GB)
Title: Improvements in or relating to machines for producing synthetic yarn
Inventor: SLACK IAN DAVID
IPC: D01D5/42
Filed: 1968-02-20
Abstract: 1,261,891. Bobbins. PLASTICISERS Ltd. 5 Feb., 1969 [20 Feb., 1968; 5 April, 1968], Nos. 8097/68 and 16402/68. Heading B8M. [Also in Divisions Dl-D2]  A bobbin for use in a ring twister having a hollow spindle is provided with a notch 748 in its upper edge 732. In winding a yarn on to the bobbin, the leading end is drawn or blown through the hollow in the spindle 740 and nipped by a pair of rollers 742, 744. The yarn is then drawn down over a traveller 734 on a ring 736 and as the spindle rotates the yarn engages in the notch so that winding can commence.
Patent GB-337432-A (GB)
Title: Improvements in or relating to driers
IPC: F26B25/12
Filed: 1929-05-29
Abstract: 337,432. White, A. E., (Coe Manufacturing Co.). May 29, 1929. Articles traversed by rollers.-A drying chamber in which sheet material is progressively dried has vertical frame members or door posts 31 which extend below the foundation 24 and abut the vertical arm of an angle bar 69. Each door post has a cover plate 71, Fig. 6, to which is hinged a pair of doors 68 extending below the foundation to a point adjacent the horizontal arm of the angles 69. The edges of the plate 71 and the adjacent edges of doors are rabbetted as at 72 to form a tight joint. The door posts are connected intermediately by transverse members 32, 28 between which extend inner vertical bars 27. The frame is strengthened by gussets 29, and is mounted on rollers 63 in tracks 26. The roof comprises a corrugated sheet 35, insulating material 36, and cover plate 37. Pairs of rollers 44 for traversing the sheets are journaled in longitudinal members 41 secured to the bars 27. The rollers are connected by gearing 51 and driven by chain sprockets 48, idler rollers 49 for the chains being carried in channels 50, connected by ties 62 which form bearings for the sprocket journals. Heating coils 55 are supported by angle bars 53, return bends of the coils extending through a cutaway portion of the angle bar and around the adjacent vertical bar 27. Specification 314,013 is referred to.
Patent GB-302942-A (GB)
Title: Apparatus for removing sludge from water blown down from steam boilers
Filed: 1927-06-22
Abstract: 302,942. Filtrators, Ltd., and Saks, V. V. June 22, 1927. Blow-down apparatus ; feedwater, heating.-Water blown down from a boiler a is led into a settling chamber b from which clean water is forced by the steam pressure in the chamber up through a pipe x into the feed tank c, and from which steam is led off through a pressure reducing valve q to heat the water in the tank. Dirty water is blown out of the settling chamber either directly through a pipe u or through a pipe v passing through the water in the feed tank. The boiler blow-down enters a compartment in the settling chamber formed by a partition m having perforations in its upper part, and a lower part bent inwardly to check the downflow of water.
Patent GB-744084-A (GB)
Title: Improvements in or relating to paper-making machines
Inventor: HOLDEN HERBERT
IPC: D21F2/00
Filed: 1953-06-17
Abstract: 744,084. Couch arrangements &c. of papermaking machines. MILLSPAUGH, Ltd. May 5, 1954 [June 17, 1953], No. 16657/53. Class 96. The web 19 is couched by a suction pick-up roll 34, from the wire-cloth 23 of a paper-making machine, on to an endless felt or pick-up wirecloth 44 from which it is transferred to the felt 26 of a suction wet-press 27, 28, by a suction transfer roll 20, a guide roll 48 being so placed that the pick-up wire 44 follows part of the circumference of the transfer roll 20. The guide roll 48 also acts as a stretch roll, it being mounted on arms 49, pivoted at 50 and spring- loaded at 51. Alternatively, there may be an auxiliary guide-roll (not shown, Fig. 1) at the position 45. The pick-up wire 44 is washed by a spray 46 above a tray 47. Cantilever support and pole arrangements for changing the pick-up wire 44 are described and quick lift of the pickup roll 34 is provided by air-cylinders 40, racks 38 and pinions 39. The pressure adjustment of the couch nip, which is. provided by air cylinders 43, need not be modified by the wirechange. The roll 34 may have two suction zones, 54, 55, and the roll 20 two suction zones 56, 56A. The couch roll 24 may have a suction zone and also a zone for pressure air to assist couching. In modifications, the return roll 22 may be omitted, and there may be an advance guide roll in the loop of the pick-up wire 44 above the couch roll 24. Specification 730,114, [Group XIII], is referred to.
Patent GB-854454-A (GB)
Title: Improvements in devices for tipping dustbins into refuse collecting vehicles
IPC: F15B11/08
Filed: 1958-05-23
Abstract: 854,454. Discharging bins into refuse vehicles. ZOLLER, H. May 23, 1958 [May 31, 1957; June 24, 1957; July 27, 1957; Sept. 23, 1957], No. 16732/58. Class 78 (4). A bin 33 (Fig. 3) pressed against a flap 32 on a refuse vehicle and tipped about the hinge 31 of the flap is subsequently returned, after tipping, by a pneumatic ram 19, 21 controlled by a relay valve 2 in response to the tipping movement of the bin. The bin may be tipped manually but in the construction of Fig. 3 it is tipped by a pneumatic ram 43 controlled by a valve 38 and supplied with air through its hollow piston-rod. The initial tipping movement brings the piston 21 of' the ram 19 below a port in the ram cylinder so that the upper chamber in the valve 2 is exhausted through an outlet 25 in the ram cylinder to cause the spindle of the valve 2 to move upwardly under the influence of a pressure connection 1 against the bias of a spring 11; this causes the valve to close on a seat 14 disconnecting the lower chamber of the cylinder 19 from pressure and venting it past a valve seat 15 at 16. When, after tipping, the valve 39 is operated to vent the ram 43 and the conduit 37 the spring 11 can move the valve spindle 9 downwardly to reconnect pressure to the lower side of the ram piston 21. A further valve 40 permits the lower end of the ram cylinder 19 to be exhausted without a bin being tipped so that the panel 32 can be pushed aside manually to permit bulky refuse to be pushed into the shoot 28. Where the bin is tipped manually the upward movement of the spindle 9 may be effected by a manually-operated press-button. The returnstroke may be delayed by the use of a pilot valve which operates the valve 2 only after a delay. In the construction of Fig. 10 the cradle 104 for tipping the bin 33 is moved on its tipping stroke by two rams 94, 73, both permanently connected to compressed air. The ram 73 has its piston-rod 76 integral with that of the returnram 19 while the ram 94 is disposed so that in the position shown it acts to hold the cradle 104 against a stop 106 while, after the cradle has been turned through an angle α manually its line of action passes to the opposite side of the pivot 107 and it helps to tip the cradle. The ram 94 may, as shown, be connected between a fixed pivot 99 and a pivot 103 on the cradle 104, or, as in Fig. 11 (not shown), it may be connected between a pivot on the cradle and a pivot on the flap 32. In an alternative construction the ram 94 is vented to exhaust by a valve which is opened when the cradle returns to its normal position.
Patent GB-145523-A (GB)
Title: Manufacture of new sulphurised dyestuffs
IPC: C09B49/12
Filed: 1920-06-22
Abstract: 145,523. Akt.-Ges. fiir Anilin-Fabrikation. Jan. 21, 1914, [Convention date]. Sulphuretted dyes are obtained by heating with sulphurizing agents mixtures of aminoazo, diarninoazo, nitroaminoazo, nitrooxyazo, or aminooxyazo compounds with C-alkylated diamines of the benzene series, for example m- or p-toluylenediamine or xylylenediamine, or N-aryl derivatives of such diamines, for example naphthylm-toluylenediamine, or the corresponding nitroamines. According to examples, products are obtained by heating with sulphur mixtures of mtoluylenediamine with aminoazobenzene, benzene-azo-#-naphthylamine, benzene-alpha-azo - naphthylamine, p-nitrobenzene-azo-alpha-naphthylamine, or p-nitrobenzene-azo-#-naphthylamine, and a mixture of 4-alpha-naphthylamino- 2-aminotoluene with benzene-azo-alpha-naphthylamine. The products are solubilized by treatment with sodium sulphide and dyo cotton olive, reddish-brown, brown, yellow-olive, yellowishbrown, and brown to black brown shades. Products are also specified from mixtures of m - toluylenediamine with p-nitrobenzene-azo-mtoluylenediamine (brownish orange), benzene-azo - m-phenylenediamine (black brown), p-nitrobenzene-azo-cresol (crude cresol mixture). The Specification as open to inspection under Sect. 91 (3) (a) refers also to the use of C-alkylated diamines of the naphthaline series, and further refers to sulphurizing a mixture of m-toluylenediamine with benzene-azo-phenol or a benzene-azo-naphthol. This subject-matter does not appear in the Specification as accepted.