baber/WOPTO huggingface dataset:
Patent GB-882879-A (GB)
Title: Improvements in and relating to heat exchangers
Inventor: VANDY RONALD MARTIN
IPC: F28D7/06
Filed: 1959-03-09
Abstract: 882,879. Tubular heat exchangers. HEDLEY & CO. Ltd., THOMAS. March 9, 1959, No. 8114/59. Class 64(3) A heat exchanger intended for the heating of viscous liquids or pastes, consists of a shell 1 containing U-tubes 5 secured at their ends in a tube plate 13 and inter-connected in series by means of a header plate 7 in which are recesses 9 forming passages inter-connecting the ends of the U-tubes, at least one of the passages having a constriction, e.g. 10 (Fig. 2), to promote turbulence in the fluid flowing through the passage. A device to promote mixing of the viscous fluid flowing through the tubes (Figs. 4 and 5 not shown), may be located within the end portions of the tubes. A detachable cover 32 may be provided at the bend of each U-tube to facilitate cleaning.
Patent GB-854343-A (GB)
Title: Process for the preparation of 3-oxo-í¸ and 3-oxo-í¸-steroids
Inventor: WESTON GEORGE OLIVER
IPC: C07J75/00
Filed: 1958-03-13
Abstract: The invention comprises 17a -ethynyl-and17a -methyl - 17b  - hydroxyandrosta - 1:4:6 - trien - 3 - one, pregna-1:4:6-triene-3:20-dione and -3:11:20-trione, 16a -methylpregna - 1 : 4-diene- 3:20-dione, 20:20-ethylenedioxypregna-1 : 4-dien-3-one, cholesta-1 : 4-diene-3 : 6-dione, the acetonide of 16a -17a -dihydroxypregna-1 : 4-diene-3 : 20-dione, 17b -acetoxy - 2 - methylandrosta - 1:4 - dien - 3 - one and pregna - 1:4:9(11) - triene - 3:20 - dione, and a process for the preparation of 3-oxo-\se1:4- and -\se1:4:6-6-demethyl-steroids which comprises treating the corresponding \se4- or \se4:6- compound with 2:3-dicyano-1:4-benzoquinone, which may be additionally substituted with one or two chlorine atoms, in a solvent, advantageously in the presence of a catalytic quantity of p-nitrophenol.  The \se1:4:6-compounds obtained can be converted into aromatic steroids by reaction with toluene-p-sulphonic acid in acetic anhydride.
Patent GB-650456-A (GB)
Title: Improvements in recording images by means of phosphors
IPC: G03C5/10
Filed: 1947-03-25
Abstract: 650,456. Delayed-action recording by means of phosphors. KODAK, Ltd. March 25, 1947, No. 8158. Convention date, March 26, 1946. Drawings to Specification. [Class 98 (ii)] [Also in Group XL (a)] A method of delayed-action recording of a long wavelength image comprises exciting uniformly with short wavelength radiation a layer of a phosphor which stores the exciting radiation and releases at least part of it when stimulated by long wavelength radiation as radiation of intermediate wavelengths, forming an image in the long wavelength radiation on the excited phosphor so as to exhaust it imagewise, and then placing the excited phosphor with its " exhaustion " image in printing relation to a photographic layer and stimulating the phosphor by illuminating it uniformly with long wavelength radiation so that the emitted radiation exposes the photographic layer. Alternatively, the image formed by the stimulated emission may be traced manually to give a permanent record. The long wavelength (infra-red) image may be projected on to the excited phosphor and the image formed by the light emitted by it when stimulated with infra-red is recorded by a photographic camera. Alternatively, the infra-red image may be " contact printed " on to the excited phosphor, if desired through the base of the phosphor as in " reflex " printing, and photographic contact prints taken from the image-wise exhausted phosphor by flooding it either through the photographic material or the phosphor with infra-red. If several prints are to be taken from a single excitation of the phosphor, the intensity of the flooding infrared is increased to keep the exposure time constant. Numerous examples of suitable phosphors are given in the Specification. Specifications 650,455, 650,458 and 650,459, [both in Group XL (a)], are referred to.
Patent GB-1074972-A (GB)
Title: Improved clamp
IPC: F16B7/04
Filed: 1963-03-01
Abstract: 1,074,972. Clamps. V. A. STATHAM. Feb. 12, 1964 [March 1, 1963], No. 8221/63. Heading E2B. A clamp for holding together two longitudinal members 1, 2 such as rods or tubes comprises a 'U'-shaped member 3 which straddles one of the longitudinal members 2 and has holes 5 in its limbs 4 for receiving transversely the other longitudinal member 1 with a clamping element 6, between the limbs 4 and between the longitudinal members, formed so that it engages with a pivot action the periphery of a longitudinal member 1 in order to hold the longitudinal members when the claimpmg element is actuated by a screw 12. The clamping element comprises a thin section portion 7 preferably of part circular form with an enlarged head 9 at one end with a nose portion 10 adapted to bear against the longitudinal member 2. The other end of the clamping element is a 1ug 11 with a screw bolt 12 such that on tightening the bolt 12 against the member 2 the lug is forced away from that member so thrusting the nose 10 against the member 2 while the portion 7 clamps against the member 1.
Patent GB-873798-A (GB)
Title: Improvements in or relating to vessels for ultra sonic treatment of liquids
IPC: B01J19/10
Filed: 1960-03-09
Abstract: <PICT:0873798/III/1> A coupling ram 2, which is connected with an ultra-sonic vibrator (not shown), is adapted to project into the vessel 1; the head of the ram 2 is of conical shape and forms with the base of the vessel 1 a conical jacket-shaped treatment chamber 3. The coupling ram is in conventional manner guided through a cover 4 of the vessel in a nodal plane of the oscillation and this cover is sealed relative to the vessel by means of an annular seal 5. Fluid which is to be treated is introduced into the treatment chamber by means of an inlet duct 6 to the conical apex of the chamber 3 and led off through an outlet 7.  The vessel 1 is surrounded by a cooling water jacket 8 into a cover 9 of which the cover 4 is threadedly engaged.
Patent GB-777511-A (GB)
Title: Improvements in or relating to electrical contact elements
IPC: H01H1/025
Filed: 1955-03-22
Abstract: Silver is incorporated in a porous carbon article, such as an electrical contact element, by impregnating with an aqueous solution of silver nitrate, drying at a temperature not exceeding 100 DEG C., and reducing the silver nitrate to silver by heating at a temperature below the melting point of silver nitrate, i.e. 212 DEG C., in an atmosphere of hydrogen or gaseous formaldehyde. The carbon may contain 1-60 per cent. of silver.  In the exampde a block of porous electrographite previously impregnated with PTFE and containing 40 per cent residual pore space was boiled for 1 hour in an aqueous solution of silver nitrate and dried in a current of air at 40 DEG C. It was then heated in an atmosphere of hydrogen at a temperature of 190-210 DEG C. and the temperature finally raised to 300 DEG C.  The resulting block contained 5 per cent of silver.  Specification 15718/00 [Class 35] is referred to.
Patent GB-273381-A (GB)
Title: An improved process for producing vessels having convex surfaces tapering towards one or both ends
IPC: B21D51/12
Filed: 1926-03-26
Abstract: 273,381. Mauser, A. March 26. 1926. Hollow-ware. - A cylinder m of sheet metal &c. is tapered at one or both ends by pressing it axially into dies composed of alternate ribs a, b which corrugate the end of the cylinder, the dies b being pivoted at f and positioned by a ring h having projections i which space the dies b at their upper ends. The dies may be radially adjustable and stops may be provided either on the dies or in conjunction with the press, to limit the depth of draw. On the completion of the operation, the ring h is removed and the dies b swung inwards thereby allowing the work to be removed.
Patent GB-855423-A (GB)
Title: Improvements in or relating to a process for preparing a soluble tea extract in powder form
IPC: A23F3/16
Filed: 1957-03-13
Abstract: 855,423. Tea extracts. INREDECO Inc. March 13, 1957 [March 22, 1956], No. 8354/57. Class 129 A pure soluble powdered tea extract is made by separating the volatile aromatic substances from a hot aqueous tea extract by evaporating water from it, by stripping with steam or other suitable gas or by a combination of these means, condensing the volatile aromatic substances, concentrating the extract, mixing the two in suitable proportions and spray drying the mixture. The aromatic constituents may be removed in a distillation column, not more than 50% of the extract being evaporated. Otherwise, the aromatic constituents may be separated in a counter current stripping column by means of steam or other gas, e.g. nitrogen, carbon dioxide or a rare gas. These methods may be combined. The extract, after removal of its volatile components, may be concentrated either continuously or batchwise at between 30 and 55 ‹C. under reduced pressure or at atmospheric pressure by freezing. out. The concentration should be carried out as rapidly as possible and the final concentrate contains 40 to 60% by weight of tea solids. It should be protected from the atmosphere, e.g. by using an atmosphere of carbon dioxide or nitrogen, and cooled below 55 ‹C. As shown, tea leaves are fed in weighed portions from container 12 to extractor 10 which is supplied with water through pipe 13 at about 100‹C. Liquid extract is withdrawn through pipe 14 and the tea leaves leave through port 15. The specific weight of the extract is measured as it passes through a pipe 14 where it is filtered in coarse and fine filters 16, 17 respectively and then pumped by pump 18 through heat exchanger 19 into stripping column 20 supplied with steam from steam generator 21. Column 20 is connected to condenser 22 and the condensate therefrom is cooled in cooler 23 and then fed to storage tank 24. The stripped extract leaves through pipe 30 and is cooled in cooler 31, concentrated in evaporator 25 and pumped into storage tank 27. Weighed quantities of the extracts from tanks 27 and 24 are mixed together thoroughly and then spray dired. An example is given using countercurrent steam stripping.
Patent GB-1496385-A (GB)
Title: Spin dryers
IPC: B04B7/06
Filed: 1975-02-28
Abstract: 1496385 Spin dryer ROBERT THOMAS 28 Feb 1975 [4 March 1974] 8371/75 Heading F4G [Also in Division F2] The spin dryer is similar to the one described in Specification 1,408,719, and operates as follows, (see Fig. 3, not shown) :- rotation by a handle (4) of a shaft (5) turns a lever 10 bearing a cam 31 clockwise, the cam rotating a slotted lever 27 clockwise up to the point 33 to tension a Bowden cable 22, compression springs 21, 23 then moving the lever 27 anticlockwise the spring 23 lifting the end 19 of brake-band 12 off the drum 11, until cam 31 lies in a recess (34) of lever 27, and cam 35 on lever 10 actuates a motor switch 28, see Fig. 4 (not shown). Reverse rotation of the shaft (5) first switches off the motor, Fig. 5, as the lever 27 is moved clockwise until cam 31 reaches 33, tightening the cable 22 and causing the band 12 to contact the drum 11 to initiate braking, the band moving in the direction of rotation of the drum 11 until its end 13 contacts a crosspiece 14. Locking of the lever 10 is meanwhile attained by inter-engagement of a cam 36 on the lever 10, and cams 37, 38 on a locking lever 26 beneath a plate 25 on which the levers 26, 27 are pivotally mounted, see Fig. 6, (not shown), a window 39 in the plate 25 permitting the cams to contact each other to prevent lifting of the lid (3), until the drum 11 has stopped. The locking is released when the drum 11 comes to rest, a spring 16 acting through a cable 18 to move the lever 26 and disengage cams 36, 37.
Patent GB-666166-A (GB)
Title: Improvements in or relating to ambulances and like stretcher-carrying vehicles
Inventor: SHELBOURNE CYRIL EVERETT
IPC: A61G3/00
Filed: 1949-03-28
Abstract: 666,166. Stretcher supports for ambulances. SHELBOURNE & WELBOURN, Ltd. March 28, 1950 [March 28, 1949], No. 8375/49. Class 108(i). In a stretcher for an ambulance of the kind having a loading tray which is supported for movement relatively to the vehicle in such manner that the tray may be disposed in either of two positions, namely one position within the vehicle to support the stretcher in a substantially horizontal attitude at a relatively high level, and another position protruding rearwardly from the vehicle in such manner that the stretcher may be loaded on to it, or unloaded from it, at a relatively low level, the rear end of the loading tray is provided with a member which is adapted to receive end wheels of a stretcher and is displaceable laterally from the loading tray to facilitate loading and unloading of the stretcher on to and from the loading tray. The front wheels 12 of the stretcher 11 are first loaded on to a tray member 7 formed with combined mounting and stop brackets 8 which slide transversely off the vehicle on rods 6 carried by extensions 3 of H section rails 1, which, with a base member 2, comprise the loading tray. The tray 7 is moved laterally until the wheels of the stretcher are aligned with the rails 1 so that the stretcher may be moved forwardly on the rails into its stowed position. A catch member (not shown) is provided to prevent inadvertant rearward movement of the stretcher. To facilitate loading of the stretcher, the loading tray is slidably mounted on fixed guide rails 13 by means of co-opsrating slide members 17 pivoted to the underside of the rails 1 and the rails 13 slope downwardly to the rear of the vehicle so that the stretcher may be stowed in a normally horizontal attitude but may be withdrawn from the rear end of the vehicle to a lower inclined position in which the loading tray and stretcher protrude. The loading tray is provided with a handle 5 to enable it to be extended rearwardly and a pivoted bracket (not shown) is provided to afford additional support for the rails and stretcher in this position. The loading tray may be straight or slightly curved in side elevation.
Patent GB-1474883-A (GB)
Title: Coal delivery device
IPC: C10B31/04
Filed: 1976-03-02
Abstract: 1474883 Charging coke ovens HARTUNG KUHN & CO MASCHINENFABRIK GmbH 2 March 1976 [7 March 1975] 08380/76 Heading F4B A device for delivering coal from a container in a larry to a coke oven battery of chambers comprises a guiding tube 206 having a feed tube substantially coaxially arranged therewith and sealed thereto by an extensible bellows 214. The feed tube comprises a first portion 204 adjacent the guide tube having a spherical surface 216 which co-operates with the spherical upper end 237 of a second portion 230 of the feed tube to allow relative universal movement and enable the portion 230 to move out of axial alignment with the guide tube. The portion 204 is lifted by an assembly 200 and cables 201, 201a and is guided from vertical displacement on the tube 206 into which the screw 208 of a coal delivery tube 207 opens. The portion 230 is supported by a plates 223a pivotally mounted at 221a on the tube 204 and movable by an operating means 227, the plates 223a each having a driving arm 229 which co-operates with outwardly projecting ribs 235 on the tube portion 230. The tube portion 230 is suspended from the plates by flexible supports 231, e.g. cables or chains, for universal movement under the influence of driving arms 229.
Patent GB-977575-A (GB)
Title: Improvements in gas bearings
IPC: F16C17/03
Filed: 1963-03-04
Abstract: 977,575. Bearings. SOC. RATEAU. March 4, 1963 [Jan. 19, 1963], No. 8464/63. Heading F2A. In a fluid bearing having a number of slippers equi-angularly disposed around a shaft, each slipper is divided into a number of elements mounted on balancing means which balance the loads on the elements and transfer these loads to a single fixed point of articulation for the slipper. In an embodiment, the slippers 1 are each divided into elements 1a and 1b and each element is mounted on a pin 12 carried by a yoke 7. The latter is pivotally connected by a pin 8 to a member 9 which, having an integral pin 11, pivots in a socket 10 of a housing 3. In a modification as shown in Fig. 4, the slipper comprises four elements la, 1b 1c and 1d; secondary yokes are mounted at each end of the main yoke 7 and each secondary yoke carries two elements.
Patent GB-1372970-A (GB)
Title: Process and device for controlling the alternate winding and undwinding of a two-ended programme tape
IPC: G11B15/48
Filed: 1972-02-24
Abstract: 1372970 Automatic control of programme ETUDES ET BONNETERIE SA 24 Feb 1972 [5 March 1971] 8573/72 Heading G3N [Also in Division G5] A programme control tape 1, bearing pre-reversal and reversal command data, is fed by flanges 2, 4 driven by a motor 3. The tape, which is transparent, is read by a multi-track optical reader 13 and illuminated through a conduit 14. The tape is wound between spools 7, 8 which are driven by the motor 3 through a chain 9 and chain wheels 10-12. A permanent magnet coupling device 18 is interposed between the shaft of the motor 3 and the chainwheel 10 and a second coupling device 19 connected to the motor shaft is used to retard the tape when the motor 3 is deenergized. The spools 7, 8 are each driven from the wheels 11, 12 through an electro-magnetic clutch 25 and a D.C. electric motor 23 is provided on the shaft to the spool. In operation, the sensing of pre-reversal data by the reader 13 causes the de-energization of the clutch 25 and the energization of the motor 23 in a sense tending to rotate the take-up spool 7, 8 in the opposite direction. A loop of tape then forms between the winding spool and drive flanges 2, 4. The subsequent sensing of reversal data causes the drive motor 3 to instantaneously reverse and the clutch 25 of the alternate take-up spool 8, 7 to be energized. The subsequent sensing of the prereversal data causes the motor 23, which is now rotating so as to feed the tape, to be de-energized. The programme tape is continuously transferred in alternate directions between the spools 7, 8 and the programme data employed to control a textile machine.
Patent GB-161915-A (GB)
Title: Improvements in and relating to die-casting machines
IPC: B22D17/04
Filed: 1920-01-15
Abstract: 161,915. Ewen, J. A., and Bowness, E. Jan. 15, 1920. Casting-machines; metal-pouring.-In a diecasting machine, a hand-lever, which operates a metal forcing plunger, first moves a gate valve into a definite open or closed position. The plunger 7, Fig. 1, is actuated, through a lostmotion device 12, by a lever 10 which is connected to a cam 15 engaging a pin 19 in a lever 20, which operates the valve 8 before the plunger moves down or up. The cam 15 bears against a spring roller 22, which allows it to move slightly to the right while the valve 7 is turned, the pin 19 being in one of the ends 17, 18 of the slot 16. The valve spindle 21, Fig. 4, is mounted outside the heating chamber 3 and connected to the valve 8 by a joint 68 and the valve has a spring pressed washer 73 of copper and asbestos. The melting-pot 1 is replenished through a valve 2<a> from a separately heated pot 2.
Patent GB-124328-A (GB)
Title: Lifting Handle for Golf Bags.
Inventor: LAWSON CHARLES BUCHANAN
IPC: A63B55/00
Filed: 1918-05-24
Abstract: 124,328. Lawson, C. B. May 24, 1918. Bags for golf clubs.-A golf-bag is provided with a long handle, which telescopes into the bag when not in use, to facilitate lifting the bag from the ground. The lower end of the handle H, Fig. 3, carries pins which slide in grooves B in a frame A fixed longitudinally in the bag. When drawn out, the handle can be turned at rightangles to the bag, as shown in Fig. 5, and is held in this position by a blade spring D on the upper end of the framo A. The frame is secured to the mouth of the bag by an adjustable clip E fixed to the frame by wedge-pieces. When turned into the longitudinal position, the handle is drawn into the bag by an elastic band. The mouth of the bag may be fitted with a wire L to support it on the ground, or the mouth may be formed with a flattened part for this purpose.
Patent GB-548577-A (GB)
Title: Improvements in or relating to cropping or shearing machines
IPC: C14B1/24
Filed: 1941-07-09
Abstract: 548,577. Fur cropping machines. SELLERS & CO., (HUDDERSFIELD), Ltd., and SELLERS, E. R. July 9, 1941, No. 8633. [Class 76] In a fur cropping machine the furs are held by suction on an endless conveyer b and are fed past an endless band knife h travelling in a direction at right angles to the feed, a suction duct k being disposed over the cutting point to raise the fur and carry away the shorn off portions. The conveyer is mounted in a casing d in communication with a suction duct e and is adjustable by brackets g. The band knife h operates between guides i, i<SP>1</SP> and is held up to the work by adjustable supports j. Grinding wheels r are provided for sharpening.
Patent GB-805310-A (GB)
Title: Operating handle interlock for electric oil-switch
Inventor: MILLS EDWARD
IPC: H01H9/28
Filed: 1956-03-20
Abstract: 805,310. Switch handles. BRUSH ELECTRICAL ENGINEERING CO. Ltd. March 19, 1957 [March 20, 1956], No. 8691/56. Class 38 (5). A mechanism for preventing movement of an oil switch operating handle over its full range (ON - OFF - EARTH) inadvertently, comprises a plate A having two parallel slots 2, 3, a slidable shutter B movable to block one or other of the slots, a rotor C, D, connected to the switch contacts and having two sockets 5, 6, one per slot, each capable of receiving a detachable operating handle E. With the shutter in its left-hand position, the handle can be placed in socket 5 and the switch can be moved between ON and OFF positions. When the handle is in the OFF position, it can be removed from socket 5, the shutter can be slid to the right, and the handle can then be placed in socket 6 and the switch can be moved between OFF and EARTH positions. The shutter and the handle can be padlocked in each position.
Patent GB-657953-A (GB)
Title: Improvements in and relating to conducting liquid electric devices for making and breaking in repeated succession electric load circuits
IPC: H01H29/00
Filed: 1949-03-31
Abstract: 657,953. Mercury and other conducting- liquid switches. MESTITZ, E. March 31, 1949, No. 8715. [Class 38(v)] A switch for periodically operating a signalling lamp or serving as a load-limiting device comprises gas-filled bulbs 1, 2 connected by a tube 3 containing conducting liquid, e.g. mercury. One end of the tube 3 extends into the bulb 1 to form a dam 5 and the liquid thus retained makes contact with the ends of a heating resistance 7 whose other end is connected through the lamp 10 to the supply. The other supply electrode 8 makes permanent contact with liquid in the tube, so that on closure of the switch 11 both the resistance 7 and lamp 10 are energized, and the gas expands in the bulb 1 to force the liquid down. When the liquid reaches the top of the dam 5 it is divided and the resistance and lamp are de-energized. The liquid continues to recede owing to -the thermal capacity of the apparatus, but eventually the gas contracts and the circuit is completed again by the liquid and the cycle repeats. Timing of the switch may be varied by adjusting the quantity of liquid by means of a reservoir 16. In a modification the tube 3 connects with the bulb 1 at a point near the bottom thereof, the dam being formed by the lower edge of the connecting haie.