baber/WOPTO huggingface dataset:
Patent GB-1462537-A (GB)
Title: Tubular heat exchangers
IPC: F28F9/013
Filed: 1974-04-18
Abstract: 1462537 Boilers; heat exchanger tube supports L N ARTEMOV A A BILYAVSKY S N VIVSIK N V ZOZULYA V I MANAENKOV V F MOSKVICHEV and E A FADEEV 18 April 1974 16965/74 Headings F4A and F4S A heat exchanger for heating or cooling liquids or gases (e.g. water, steam or a mixture thereof) comprises groups 5 of parallel longitudinally-finned tubes disposed in a shell 1, spacing means for the individual tubes comprising (as shown in Fig. 5) corrugated strips 24 together forming a plurality of cells 23 each adapted to encircle a non-finned portion (14, Fig. 4) of one of the tubes, and a continuous band 25 encircling the strips 24 of each tube group. On the external perimeter of each band 25 are projections 26 and corrugated elements 27 which co-operate in the manner shown in Fig. 6 to serve as spacing means between adjacent tube groups, the tube assembly being supported on a grating 4. As shown in Fig. 1 each tube group extends between inlet and outlet sub-headers (19, 20, Fig. 3) which are connected via tubes 7 and 9 with main inlet and outlet headers 6, 8. The shell 1 has an inlet 2 and outlet 3 for the fluid flowing over the tubes. Partitions (13, Fig. 3) are arranged around the tube assembly between it and the shell 1 to guide the shell-side fluid more closely around the tubes.
Patent GB-631277-A (GB)
Title: Improvements in or relating to dielectric wave guides
IPC: H01P5/02
Filed: 1947-06-27
Abstract: 631,277. High-frequency impedance transformers. WESTERN ELECTRIC CO., Inc. June 27, 1947, No. 17025. Convention date, March 30, 1943. [Class 40 (viii)] An impedance transformer for connecting together two dielectric wave - guides, all having the same crosssection, comprises a section of guide onequarter of a wavelength long and provided with a dielectric core whose constant is of such a value as to cause the transformer to provide an impedance match between the guides. In the arrangement shown the two guides 2 and 4 are joined by a transformer section 5 containing solid dielectric 6 in which a slot 12 is cut. The size of the slot is adjusted by trial and error until the average dielectric constant of the transformer is so adjusted as to provide a match for the guides. In an alternative construction air bubbles are formed in a solid dielectric to alter its constant to the desired amount.
Patent GB-743980-A (GB)
Title: Improvements in or relating to fuel burners
IPC: F23D14/60
Filed: 1952-07-07
Abstract: 743,980. Controlling burners. SCHIELDROP, B. H. Oct. 1, 1953 [July 7, 1952], No. 17041/52. Class 75(1). In a burner of the kind comprising a central jet surrounded by a plurality of outer jets each of smaller cross section than the central jet, and wherein fuel is supplied to the central jet and air to the outer jets or vice versa, fuel and air control means are operatively connected together so as to maintain a constant ratio between the rates of supply of fuel and air, and flow restrictive means is provided in the supply to the central jet to compensate for the feature that the pressure drop across the surrounding jets is larger than that across the central jet. In the gas burner illustrated a tube 7 is rotatable by a handle 25 to move arcuate valve members 17, 18 relatively to slots 13 to regulate simultaneously the entry of air and gas, respectively, into housings 8, 9. Air passes from the housing 8 through jets 2 surrounding a gas jet 1 at the end of the tube 7 into which the gas enters from the housing 9 through an aperture 15. The additional flow restricting means comprises a part cylindrical plate 24 arranged to restrict the gas flow through the aperture 15. The member 18 has a portion of reduced width and is movable axially together with the plate 24 by means of a screw 21 to adjust the rate of gas flow independently of the rate of air flow. Alternatively the gas flow restricting means may comprise an orificed plate within the tube 7 movable axially relatively to a fixed apertured plate. Specification 574,313 is referred to.
Patent GB-432317-A (GB)
Title: Improvements in or relating to machines or apparatus for treating articles with dyes and other liquids
IPC: D06B3/08
Filed: 1934-06-08
Abstract: <PICT:0432317/IV/1> Work-supporting elements, e.g. poles, rods, or sticks, to which articles or material to be treated with dyes or other liquids are attached are moved automatically one or more at a time from one end of the dye tank or vat to the other and back again in reverse order, repeatedly by endless conveyer means, to trail the articles or material through the liquid.  The apparatus may, as shown, comprise a pair of endless-chain conveyers 2 supported on sprockets 3 in vertical planes, one conveyer on each side of the tank 1, the sprockets being mounted on saddles adapted to be moved longitudinally of the tank so that as a pair of fingers on the conveyers engages and conveys one or more of the work-supporting elements S from one end of the tank 1 to the other, the saddle is moved along sufficiently for the following pair of fingers (or by the same pair, if only one pair is provided) to engage the next work supporting element or group of elements.  T-shaped fingers 6 mounted on the chain conveyers 2 engage the projecting ends 21 of the poles S and carry them to the other end of the vat 1, the saddles which support the sprockets 3 of the conveyers being moved, by a driving screw 5 driven from the same main shaft 9 that drives the conveyers, a distance equal to the spacing between successive poles S so that a following finger 6 will engage the next pole.  Spring-pressed pivoted spacing members 18 of finger-like character mounted in channels 33 or like carriers are overturned or released in turn by push rods 19 connected with the slides in timed relation to the moving fingers 6 to correctly space the poles S in position to be engaged by these fingers.  The main shaft 9 is preferably driven electrically, either directly or indirectly, by a motor 4 on the main shaft 9, and one motor may serve two or more adjacent vats.  The direction of rotation of the chains and of movement of the saddles is reversed at predetermined intervals, dependent on the number of poles S carrying goods, through the medium of a quick-action switch device 38 which controls a reversing switch lever 39 for reversing the driving motor and which is actuated by means, such as an arm 48, associated with the moving saddles, engaging cross stop members 47.  The poles S are of flat sided section with a metal tube 21 inserted in each end or passing completely through for engagement by the fingers 6.  A stop is provided across the vat at each end.
Patent GB-631981-A (GB)
Title: Improvements in or relating to sealing devices for relatively rotatable parts
IPC: D01F6/08
Filed: 1947-06-27
Abstract: 631,981. Stuffing-box substitutes. MORGAN CRUCIBLE CO., Ltd., and COLBECK, A. G. A. June 27, 1947, No. 17074. [Class 122(v)] In a seal for two relatively rotating parts 1, 2 comprising a hollow holder 7 of resiliently deformable material having a larger diameter at one end than at the other. the smaller end carrying a carbon sealing ring 6 which forms a surface rubbing seal with a collar 3 on one of the parts 1 and the larger end being accommodated so as to form a static seal with the other part 2, the walls of the holder being sufficiently stiff to resist the torque imposed on it and to locate the ring 6 concentric with the axis of relative rotation of the parts 1 and 2 but allowing resilient deformation in the axial direction under axial compression, the larger end of the holder 7 is formed with an inwardly projecting radial portion 9 which terminates in an abrupt change of direction where it joins the remainder of the holder at 10 and is also formed so as to provide a clear space 11 behind the radial portion 9 into which the latter is flexed by bending when the holder is subject to axial compression, and a second radial portion 8 adapted to bear on a radial face 4 of the part 2. The joint between the sealing ring and the holder may be strengthened by fitting a compression band over it and the material of the holder may be internally reinforced.
Patent GB-584960-A (GB)
Title: Improvements relating to aluminium alloys
IPC: C22C21/12
Filed: 1944-09-07
Abstract: An aluminium base alloy consists of, in addition to aluminium, copper 1.5-2.25 per cent., nickel 1.8-2.3 per cent., magnesium 0.65-0.85 per cent., manganese 0.8-1.2 per cent., molybdenum 0.2-0.3 per cent.  The molybdenum may be wholly or partly replaced by tungsten, the ratio of tungsten used to molybdenum replaced being 2.2 to 1.  The alloy may also include the following: iron up to 0.7 per cent., silicon up to 0.6 per cent., titanium up to 0.2 per cent., and cobalt up to 0.5 per cent.  The alloy may be made by first forming suitable binary alloys with aluminium of all the other metals except magnesium, melting about 75 per cent. of aluminium metal with the necessary amount of aluminium-nickel alloy, to form a melt having a temperature of 780 DEG C. to 800 DEG C., then adding the total necessary amount of aluminium-molybdenum alloy and/or aluminium-tungsten alloy (in that order when both molybdenum and tungsten are used) followed by the total necessary amounts of aluminium-manganese and aluminium-copper alloys in that order and the balance of the aluminium.  The melt temperature is maintained at 680-770 DEG C. and the magnesium, in metal form, is added.  Where a proportion of scrap alloy is to be used, about 50 per cent. of the aluminium metal is melted with about 50 per cent. of the aluminium-nickel alloy.  About 50 per cent. of the other binary alloys are then added in the above-mentioned order. The scrap is then added followed by the remainder of the binary alloys and the balance of the aluminium in the above order, and when the melt temperature is 680- DEG 770 DEG C. the magnesium is added. A suitable heat treatment for the alloys involves heating to 550-585 DEG C. and rapidly cooling followed by ageing at 120 DEG -220 DEG C. for from 4-36 hours and allowing to cool.  A preferred heat treatment is at 570 DEG C. (\sB5C DEG ) for about 6 hours followed by quenching in water or oil or air blast, re-heating for about 12 hours at 190 DEG C. (\sB5C. DEG ), and cooling in still air.
Patent GB-1465707-A (GB)
Title: Telecommunications cables
IPC: H01B11/08
Filed: 1974-04-18
Abstract: 1465707 Telecommunications cable INDUSTRIE PIRELLI SpA 18 April 1974 [19 April 1973] 17103/74 Heading H1A Each element of a multi-element telecommunications cable comprises a plurality of insulated conductors 20, Fig. 2, 25, Fig. 3, surrounded by a metal screen consisting of one or more plastics coated metal tapes 22, Fig. 2 or 32, 34, Fig. 3, having their edge portions bonded in face-to-face contact, either inner face-to-outer face as in Fig. 2 or inner face-to-inner face as in Fig. 3 and Fig. 1 (not shown). The use of polyethylene and polyester plastics, and aluminium foil is mentioned.
Patent GB-936094-A (GB)
Title: Delay lines for travelling wave tubes
IPC: H01J23/24
Filed: 1961-05-11
Abstract: 936,094. Travelling wave tubes. CSFCOMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. May 11, 1961 [June 3, 1960], No. 17188/61. Class 39 (1). A delay line for a travelling wave tube comprises a series of parallel bars 11 extending parallel to a pair of back-plate surfaces 10 separated by a slot 9. In order to suppress non-symmetric parasitic modes which arise in such a line, the slot 9 is bridged at intervals by conductive members 13 which may be made of, or coated with, attenuating material. Each bar 11 is supported from the base of a waveguide 8 by a stem 12. Two such arrangements placed side-by-side may form a double-T structure. In the modification of Fig. 4, the ends of the bars 11 are connected to side members 14, 14<SP>1</SP> to form a double-pi structure. Specifications 761,768 and 839,685 are referred to.
Patent GB-661333-A (GB)
Title: Steam cooking vessel
IPC: A47J27/08
Filed: 1949-06-30
Abstract: 661,333. Pressure cookers. BUCHERSPECK & CIE. June 30,1949 [July 29,1948], No. 17327/49. Class 123(i) A pressure cooker 1, having an outwardly directed flange 2 for coacting with a rim 4 of the lid 3, has a lid clamping device comprising two spaced limbs 7 extending substantially diametrically across the top of the lid 3, the limbs 7 being connected at one side by a yoke 8 for engagement under the flange 2 and bridged adjacent the other side by a member 11 carrying a pivoted hook 12 which can be engaged beneath the rim of the vessel at that side to urge and retain said limbs yieldingly in engagement with the top of the lid. When the steam pressure within the vessel exceeds a predetermined value, the limbs yield and permit the lid to rise and relieve said pressure. The ends of the limbs 7 nearest to the hook 12 are fitted in a handle 10 and the hook 12 is formed integrally with a lever 14 by which it is operated. A safety valve 6 is provided in the lid and a sealing ring 5 is placed between the rim 4 and flange 2.
Patent GB-955657-A (GB)
Title: Improvements in pneumatic devices for use in operations such as stamping
Inventor: FLETCHER THOMAS EDWARD
IPC: B21D22/00
Filed: 1959-05-21
Abstract: 955,657. Percussive tools. CLIMAX ROCK DRILL & ENGINEERING Ltd. May 20, 1960 [May 21, 1959], No. 17329/59. Heading B4C. An impact device comprises a piston connected to a rod constituting one of three members movable relatively to one another in paths parallel to the axis of the piston, one member, situated between the other two, being a cage for catch members movable at right angles to the axis of the piston, the outer members, one of which, not the rod, being a movable locking member, having recesses in which the catch members may engage, one of the three members other than the rod being stationary, the locking member being movable between a position in which the catch members engage in the recesses and allow movement of the piston and a position in which the catch members prevent movement of the piston, the arrangement being such that the locking member is in its second position when the piston is in a position to make a working stroke and a passage is provided to bleed air into a space in which the locking member is urged towards its free position. As shown, a piston 4 is connected to a rod 6 having a recess 40 in which catch members in the form of balls 38 held in bores in a stationary cage 8 may engage. A locking member 10 surrounds the cage and the rod and when compressed air is supplied to a port 30, some air passes between the rod and the cage to enter a chamber 42 and escape through an opening 46 into a chamber 48. When the air pressure in the chamber 48 approaches that in the chamber 42 the locking member 10 moves downwardly, the space below the member being vented to atmosphere through a hole 50 and isolated from the compressed air by sealing rings 5, and the balls move radially out of the recess 40 into recesses 54 in the locking member and the piston may then make a working stroke. On the return stroke the rod 6 raises the locking member and the balls again engage in the recess 40. Small flanges on the inner ends of the bores in the cage 8 prevent the balls from falling out when the end of the rod passes them on a working stroke.
Patent GB-110645-A (GB)
Title: Apparatus for Marking Explosive Shells and other Articles.
Inventor: HERBERT ALBERT FITZ
IPC: F42B33/14
Filed: 1916-12-04
Abstract: 110,645. Herbert, A. F. Dec. 4, 1916. Type-bar machines for recording readings in weighing-machines; machines for marking curved articles; matrix supports; pad inking-arrangements.-Apparatus for marking explosive shells and other articles comprises a number of sliding pins which can be raised by key-levers, or in some cases by foot-levers or cams, and carry stamps for applying marks of paint &c. to the article. The apparatus may be mounted on a weighing-machine and be used for marking a shell to indicate whether it is of standard weight or is within a permissible plus or minus margin of the standard. The invention is shown applied to the weighing-machine described in Specification 106,780, [Class 143, Weighing-apparatus], and comprising a pointer e reading over a scale j, and a table a provided with a platform c and guides m along which the shell A is rolled. Three key-levers h operate pins g which pass through guides g<1> in the table and carry pivoted markers g<2> of disk. star, triangular, or other shape. The markers are arranged in a triangle so that the indications on the scale f can be marked on the shell by depressing one, two, or three of the keys i<1>. The markers may be spring- mounted and provided with solid or hollow rubber tops. Paint &c. is applied to the markers by pads j mounted pivotally on a counterweighted lever k.
Patent GB-685194-A (GB)
Title: Improvements in and relating to cage members for nuts adapted to be attached to an apertured support
IPC: F16B37/04
Filed: 1951-07-24
Abstract: 685,194. Anchor nuts. UNITED-CARR FAST ENER CORPORATION. July 24, 1951 [Aug. 9 1950]. No. 17515/51. Class 89 (i) A cage for anchoring a nut to a blind opening 12 in a panel is produced from a one piece sheet metal blank having a base 18 holed to pass the bolt and provided with legs 20 extending from one end of opposed sides 22 and inclined so that flanged feet 32 are central. On sides extending between the sides 22 there are a spacing abutment 24 and a resilient member 28 formed by an upward bend 40, and a reverse bend 42. To increase the resilience the centre of the member is cut away and the resulting slot may extend to the bolt aperture 48. The cage is applied by tilting arm Fig. 4 so that the resilient member is introduced behind the panel. The cage is then slid to the right and turned in a clockwise direction until the abutment 24 can be slipped behind the panel leaving the feet 32 centrally disposed in relation to the aperture 12. The nut is inserted by tilting as in Fig. 7 and forcing against the resilient member 28 until the side 56 of the nut will pass the edge of the aperture 12 when the member 28 will force and hold it against the abutment 24. The panel may be either tightly or loosely engaged between the abutment and the flanges 32.
Patent GB-203106-A (GB)
Title: Improved packing case
IPC: B65D6/28
Filed: 1922-06-26
Abstract: 203,106. Ellis, R. H., and Simper, F. June 26, 1922. Boxes of skeleton formation; corner joints.-The walls of a packing case are held loosely within a rectangular skeleton frame comprising strip members a, f, c which are secured together by nails. The corner joints of the frame may be scarfed as in Fig. 1, or of plain butt form.
Patent GB-1458058-A (GB)
Title: Apparatus suitable for use in the control of a work-holder in a machine tool
IPC: F15B5/00
Filed: 1974-04-23
Abstract: 1458058 Fluid actuators for draw-bars; gauging LA PRECISION INDUSTRIELLE 23 April 1974 [24 April 1973] 17649/74 Headings B3T and B3B A double-acting hydraulic actuator for the operation of a draw-tube in a machine tool spindle comprises a rotary piston and cylinder limit 8, 6 located in a stationary structure, 1, 2 by way of bearings 3, 4, the piston being annular and integral with a sleeve 9 to which the draw tube (not shown) of the machine tool is attachable. The piston divides the cylinder 6 into two chambers A, B which communicate by way of tubes 26 with bores FB 1 , FB 2  each of which house a piston GB 1 , GB 2 , which are biased by springs 4B 1 , HB 2  respectively and are coaxial with guide rods 20B 1 , 20B 2 . In operation, pressure fluid to either one of the chambers A or B is also directed against the pistons GB 1 , GB 2  which displaces the guide rods against the springs HB 1 , HB 2 . The guide rods extend externally of the actuator unit and are connected at their outer ends by a ring member 23. The simultaneous action of the pressure fluid to displace the piston 8 and a piston GB 1  and/or GB 2  causes the displacement of the ring member 23 which is indicative of the operative pressure and any reduction in pressure is indicated by the displacement of the ring relative to a calibrated scale, the pistons GB and springs HB constituting an accumulator, which in the event of a reduction in pressure in the chamber A or B maintains the operative pressure to retain the clamping action in the machine tool by the operation of the draw bar. An electro-magnetic or optical detector may be provided adjacent the ring member 23 to detect the position of the ring and hence provide signals for the stopping of the machine tool.
Patent GB-379030-A (GB)
Title: Improvements in electric hand irons
IPC: D06F75/26
Filed: 1931-06-18
Abstract: 379,030. Electric hand-irons. WARNELL PATENTS, Ltd., Bank of New Zealand Chambers, Swanson Street, WARNER, H. K., Panmure Road, Panmure, and ELLIOTT, G. R., 23, Abbotsway, Remuera, all in Auckland, New Zealand. June 18, 1931, No. 17672. [Class 138 (ii).] A baseboard 15, Fig. 2, of insulating material is mounted in a recess in the hollow handle of an electric hand - iron and a pair of contact studs 17, Fig. 4, are fixed thereon. One of the supply leads to the heating unit is broken and the broken ends are passed through longitudinal grooves 13 in the handle and are connected to the contact studs as shown. A connecting member 20 biased by a spring 24 to circuit-open position is pivoted at 21, Fig. 2, to the baseboard and the other end of the spring 24 is secured to a rod 22 which is slidably mounted in guides 23 on the baseboard and is biased by a spring 25 to the position shown in Fig. 4. One end of a bell-crank lever 26, Fig. 2, engages in the slotted end of the rod 22 and a bowshaped lever 29 is pivoted to the other end of the bell-crank lever, the other end of the bowshaped lever being pivoted in the handle. When the handle and bow-shaped lever are grasped in using the iron the rod 22 is moved forwards to rotate the connecting member 20 to bridge the contacts 17. A plunger 30 is slidably mounted in the handle and when the iron is turned up on end, the free end of the plunger rests on the table a. The weight of the iron by itself is insufficient to overcome the spring 25 and the switch normally remains open but the operation may depress the iron about the plunger which will then close the switch and maintain it closed so that the iron may be left on end either with the current off or on as desired.
Patent GB-725075-A (GB)
Title: Improvements in or relating to tubes for heat exchangers
IPC: F28D7/10
Filed: 1953-06-25
Abstract: 725,075. Tubular heat-exchange elements. MANNESMANN AKT.-GES. June 25, 1953 [July 9, 1952], No. 17702/53. Class 64 (3). In a tubular heat-exchange element in which an outer tube 1 is formed with indentations 1a to maintain it at a distance from an inner tube 2, the wall of the outer tube is thickened locally by adding welding material 3 at the base of the indentations.
Patent GB-1530544-A (GB)
Title: Packing machine for fish
IPC: B65B25/06
Filed: 1977-04-28
Abstract: 1530544 Conveying fish CHR BJELLAND & CO AS 28 April 1977 [7 May 1976] 17716/77 Heading B8A Fish (arranged alternately head to tail) are dropped into carriers 8 carried along runners 42 by laterally spaced belts or chains 6. The latter are interleaved with strands 20<SP>1</SP>, 20<SP>11</SP> of a downstream endless conveyer 20. The fish are arranged in spaced groups of eleven by the action of a counter 40 which energizes a cylinder 27 after every eleventh fish. A member 29 is reciprocated to bring each group of fish over sliding members 35, 36. These periodically reciprocate to feed the fish groups to a container 14.