baber/WOPTO huggingface dataset:
Patent GB-1385980-A (GB)
Title: Apparatus for handling flowable material
IPC: B65G53/42
Filed: 1972-06-06
Abstract: 1385980 Pneumatic conveyers TRYTHALL DESIGN & DEVELOPMENT Ltd 5 June 1973 [6 June 1972] 26352/72 Heading B8A [Also in Divisions F1 and F2] In apparatus for transporting flowable material, e.g. sludge or granular or powder material, having an inlet 24, Fig. 2, and an outlet tube 34, pneumatic means located, e.g. in casing 30 or in an external cabinet, delivers pressure air to cause a closure member 22 to move to the closed position shown in dash lines, whereafter the means delivers pressure air into space 32 to blow the material entrapped therein through the outlet tube 34. After a short period of time the closure member opens automatically and the blowing stops, repeat cycles of operation being initiated manually or automatically. The pressure air for blowing is delivered from the casing 30 to the space 32 via one or more ports 52 in a plate 37 when the latter is raised against the action of spring units 54, by the reaction forces set up due to the pressure air forcing the closure member against its seating 26. In an alternative embodiment, Fig. 1 (not shown), operation of a first button (40) causes pressure air to slowly close the closure member (22) with low force, and subsequent operation of a second button (40) causes high pressure air to be applied to the member (22) and to be delivered through a valve in plate (37) into the space (32) to initiate a timed blowing cycle.
Patent GB-1461113-A (GB)
Title: Coolant circulating pump
IPC: F04D29/42
Filed: 1974-06-13
Abstract: 1461113 Centrifugal pumps KLEIN SCHANZLIN & BECKER AG 13 June 1974 [19 June 1973] 26370/74 Heading F1C A glandless circulating pump for coolants at elevated pressures and temperatures comprises a heat barrier structure 5 between the pump impeller 2 and the driving motor 6 and bearing 9. The barrier structure comprises water coolant channels 12, air spaces 10 divided by thin radial ribs 11, and cooling spaces 13. The assembly comprising impeller 2, shaft 8, motor 6, barrier structure 5 and inlet tube 3' is removably secured to the casing 1 by necked-down bolts 14. The various parts of the assembly may be detachably secured to one another.
Patent GB-992089-A (GB)
Title: Crane
IPC: B66C23/26
Filed: 1963-07-03
Abstract: 992,089. Jib crane. KOEHRING CO. July 3, 1963 [Oct. 22, 1962], No. 26387/63. Heading B8B. A crane mounted on a carrier 1, having hydraulically operated outriggers 62, 63 may be used as shown as a tower crane mounting a jib or as a jib crane with a jib mounted directly on the carrier or with the tower or a section thereof used as the jib. The crane has a pair of backstays 50 which may hold the base section 11 vertical or may act as a stop for the luffing when the section 11 is being used as a jib or a part thereof. The tower crane assembly has the base section 11 pivoted to a boom part 10 of a superstructure 8, a tower boom 12 of variable length and a jib boom 20 pivoted thereto and interconnected by pendants 28, 32, connected by masts 27, 30. The backstays 50 comprising telescoping tubular members 51, 52, Figs. 5, 8, are connected between a frame 54 and the superstructure 8 and the members 51, 52 are held fully engaged by a pin 64 passing through holes 60, 57, Fig. 5, therein to lock them to hold the section 11 vertical. If the tower is to be used as a jib sheaves are mounted on a frame 18 and the backstays are released by removing the pin 64 and re-inserting it through a hole 57-59 where it co-operates with recesses 61 to limit upward luffing which is effected by cable means. For lifting heavy loads short distances a hammer head may be mounted on the section 11 which is used alone.
Patent GB-1502206-A (GB)
Title: Clock mechanism
IPC: G01P1/04
Filed: 1976-06-25
Abstract: 1502206 Full-face disc brakes KIENZLE UHRENFABRIKEN GmbH 25 June 1976 [1 Sept 1975] 26453/76 Heading F2E [Also in Division G3] To eliminate backlash in a gear train driven at constant speed by a motor 1 and driving, e.g., a chart-recorder, a friction plate 11 is coupled to the final gear 8 of the train and is allowed to rotate only through a limited angle by means of stops, and a tension spring 13 is connected between the friction plate and the fixed framework to provide a reverse torque on the gear 8 in one direction of rotation thereof. Unlimited reverse motion of the train is thus possible during manual setting of the mechanism by means of a knob 10, without losing the backlasheliminating effect of spring 13. The stops are provided by the end walls of a slot 16 which receives a peg 15 on an arm 12 of the friction plate. The latter is pressed against the gear 8 by a thrust spring 17.
Patent GB-463078-A (GB)
Title: Improvements in or relating to metal doors
IPC: E06B3/76
Filed: 1935-09-26
Abstract: 463,078. Metal doors. CRITTALL MANUFACTURING CO., Ltd., and CRITTALL, W. F. Sept. 26, 1935, Nos. 26667 /35 and 19077 /36. [Class 20 (iii)] A door of the kind comprising two metal panels united to I-section or like fillets C by spot-welding have one or both the flanges of the fillets H, J extended beyond the edge of the panel to engage a check or checks on the frame, Fig. 3. The fillets may be countersunk to take a panel or the panel may be extended over the edge of the flange to form a check. The exposed edges of the plates and fillets are protected by a metal spray of zinc or the like. The doors may be partly glazed as for French windows, Fig. 4, one of the fillets being provided with a glazing flange. The door may be braced by members between the panels and wood or other soundinsulating material may be inserted between the panels.
Patent GB-266251-A (GB)
Title: Improvements in or relating to fountains for rooms
IPC: B05B17/08
Filed: 1926-10-25
Abstract: 266,251. Sokal, S., (Frost & S÷hne, H.). Oct. 25, 1926. Fountains.-A piston is raised to produce a jet by a spring g, Figs. 1 and 3, arranged around or inside a hollow piston-rod and protected by telescoping members. The water receptacle a may be either at the bottom or top of the apparatus; in the latter case, passages r and apertures c are provided.
Patent GB-1287325-A (GB)
Title: Apparatus for cooling a series of workpieces
Inventor: GRANT WILLIAM JACKSON
IPC: F25D3/11
Filed: 1970-06-03
Abstract: 1287325 Refrigerating BRITISH OXYGEN CO Ltd 28 May 1971 [3 June 1970] 26846/70 Heading F4H Apparatus for cooling a series of workpieces, in particular metal articles, comprises a thermally-insulated chamber 2 housing an endless conveyer, a spray head 36 positioned on the downstream side of a motor-driven fan 38 for spraying liquid nitrogen into the chamber 2, and at least one door 6 giving access to the conveyer, and to pockets in the form of spacedapart clips adapted to carry the workpiece. Each chamber wall has an external surface of plywood enclosing foamed plastics material or other suitable insulant, the insulant being kept in place by an inner surface layer of wood or metal sheet. The upstream side of the fan is in communication with a chamber 40 adapted to receive a supply of cold dry nitrogen gas. In operation, after the spray of liquid nitrogen droplets issuing from an arcuate spray head 36 has been vaporized, the resultant cold and dry nitrogen gas passes over the workpieces 30 before excess gas passes into a vent 42, from which at least some of the gas is recirculated to the chamber 40. The vent 42 is fitted with a non-return valve to reduce the loss of cold dry nitrogen from the chamber each time the door is opened.
Patent GB-686972-A (GB)
Title: Improvement in inflation valves
Inventor: CHASSAGNE RAYMOND PIERRE
IPC: F16K15/20
Filed: 1951-11-16
Abstract: 686,972. Inflating valves. PRODUITS CAOUTCHOUC DU CENTRE. Nov. 16, 1951, No. 26877/51. Class 135. In an inflating valve of the kind comprising a rigid cylindrical member 3 with orifices 4 controlled by a flexible, hollow, skirt-like member 2, the member 3 has an axial orifice 5 controlled by a screwed plug 6 to facilitate deflation. The plug carries a washer 9 and is formed with longitudinal grooves 7 to permit the passage of air.
Patent GB-641907-A (GB)
Title: Driving mechanism for cycles
IPC: B62M19/00
Filed: 1947-10-07
Abstract: 641,907. Cycle driving-mechanism. BLACKBEE, L. M. Oct. 7, 1947, No. 26878. [Class 136 (ii)] In a pedal driven bicycle power is transmitted hydraulically by pedals V working a pump I driving oil from a tank B and transmitting it into a main hydraulic cylinder A thereby working a rack and piston F, a pinion L, lever M, rod N a free wheel R and chain P which pulls the cycle chain wheel round. When the stroke is finished the lever M pushes a catch G which releases an exhaust valve E to allow the piston to return for its next thrust. A spiral spring 03 is provided for quick release of the exhaust valve.
Patent GB-962737-A (GB)
Title: Process for the preparation of lauryl mercaptan
Filed: 1961-07-26
Abstract: Lauryl mercaptan is prepared by reacting lauryl alcohol with sulphur and hydrogen or a sulphur donor in the presence of a heavy metal sulphide as catalyst.  The reaction is preferably carried out in the liquid phase under pressure at 220 DEG  to 240 DEG C., using rhenium heptasulphide as catalyst.  When the sulphur donor is used the reaction is advantageously carried out in the presence of hydrogen. Dodecyl sulphide may be formed as a by-product.
Patent GB-1120516-A (GB)
Title: Transistor switching circuits
Inventor: HUNT ROBERT WILLIAM
IPC: H03K19/088
Filed: 1966-06-17
Abstract: 1,120,516. Transistor switching circuits. STANDARD TELEPHONES & CABLES Ltd. 16 June, 1967 [17 June, 1966], No. 27097/66. Heading H3T. A switching circuit of the type comprising a coupling, a bipolar or a field effect transistor T 2  having its base or gate connected through resistance R 6  to a current source and its collector or drain connected through resistance, which may be inherent in the transistor, to the base or gate of an output transistor T 1 , has a further bipolar or field effect transistor T 5  connected to resistor R 6  and to the collector or drain of T 2  substantially as shown. This further transistor serves to rapidly change the capacitance of the circuit when the inputs to the emitter or emitters of T 2  block T 2 . A further increase in switching speed may be obtained by connecting a further emitter of T 3  to the collector of T 5 . The circuit may be connected in integrated form (Fig. 4b, not shown) and the multi-emitter transistor may have a shorting layer (11) beneath the collector region to lower the internal resistance of the transistor.
Patent GB-1083225-A (GB)
Title: Improvements in or relating to steam generators
IPC: F22B9/04
Filed: 1965-06-25
Abstract: 1,083,225. Vertical steam generators. A. SIMONET. June 25, 1965 [July 2, 1964], No. 27144/65. Heading F4A. A steam generator comprises an internal boiler 1 formed with a fire-box 2 and vertical nest of smoke tubes 4, and a superheater 7 spaced above the boiler 1 also traversed by smoke tubes 8. The steam spaces of boiler 1 and superheater 7 are interconnected by pipe 12, and steam leaves the superheater through pipe 14. The boiler and superheater form a unit surrounded by a double-walled detachable bell-shaped container 16 acting as a feed water heater. Water is supplied through inlet 25 to the container which communicates with the boiler 1 through pipe 22. Combustion gases pass out to atmosphere through free space 19 and aperture 21. The unit may be mounted on wheels.
Patent GB-636771-A (GB)
Title: Disazo dyestuffs
IPC: C09B41/00
Filed: 1947-10-09
Abstract: A cupriferous disazo dyestuff is manufactured by heating in alkaline solution with an agent yielding divalent copper ions (especially cupric tetrammine ions), until the alkyl groups are split off, the disazo dyestuff obtained by coupling tetrazotized dianisidine in alkaline medium with equimolecular proportions of 1 : 8 : 4 : 6- and 1 : 8 : 2 : 4-aminonaphtholdisulphonic acids. The couplings may be effected simultaneously or successively in either order, but preferably in the order indicated, the first coupling being carried out in mildly alkaline medium and the alkalinity then increased slightly.  The coppering may be performed by heating the dyestuff, with or without isolation from the coupling medium, with an aqueous solution of an agent yielding divalent copper ions, e.g. copper sulphate, rendered alkaline, preferably by means of ammonia or ammonium carbonate.  The product dyes cellulosic fibres, e.g. cotton or rayon, in greenish-blue tints, the light-fastness of which is substantially unaffected by after-treatment with crease-proofing thermosetting resins.
Patent GB-699247-A (GB)
Title: Method of and machine for felting
IPC: A42C1/08
Filed: 1950-11-07
Abstract: 699,247. Felting hat bodies. CASSE, M. Nov. 7, 1950 [Dec. 21, 1949], No. 27168/50. Class 63. [Also in Group VIII] A felting machine for hat bodies and other articles, and having at least two beds of rollers adapted to impart reciprocatory movements along an undulating path to the articles being felted, has each roller connected to a worm wheel, and a worm in mesh with the set of worm wheels pertaining to each bed of rollers, a first driving means being provided to drive the worms in rotation, and a second driving means to impart to each of them axial reciprocatory movement, which is imparted to the co-operating worm wheels and rollers as an oscillatory movement about their axes, superimposed upon a rotary movement caused by the rotation of their respective worms. The machine shown comprises two beds of rollers 6, 8. The journals 10 of the lower set of rollers 8 are mounted in bearings supported on posts 14, which are slidable in members 'secured to the frame 1, and rest on springs 17 on bearers 18, the vertical position of which may be adjusted through a linkage controlled by a handwheel 30; they are connected, through couplings which permit misalignment, to shafts 7 on which are mounted worm-wheels 37 meshing with a worm 39. The shafts 5 of the upper rollers 6 are provided with worm-wheels 36 meshing with a worm 38. The worms 38, 39 are rotated by being provided at one end with gear pinions 41, 42, which may have the same or slightly differing numbers of teeth, meshing with a common gear 43, driven through a pulley 46 and belt 47 by an electric motor 48, and are given a longitudinal reciprocation by their other ends being rotatably mounted in housings 51 which are connected by pivoted connecting rods 53 to a crankshaft 55, which is driven through pulley 58 and belt 59 by an electric motor 60. The crank pins for reciprocating the worms 38 and 39 may have the same or slightly different eccentricities; or their angular position may be staggered by a few degrees. The rollers in the two rows are staggered, and the distance between the centres of the rows is less than the sum of the diameters of rollers 6 and 8, so that the article being felted is constrained to move in an undulating path. The tangential speed of the rollers may be varied progressively, either by variation in the diameter of successive rollers 6 and 8, these being driven at the same angular velocity, or by driving rollers of the same diameter with increasing or decreasing angular velocity by means of worms 38 and 39 having different leads at different positions along their lengths. Lubrication is effected by a gear pump 62.
Patent GB-1046368-A (GB)
Title: Improvements in swivel couplings
Inventor: NOLAN JOHN HAROLD
IPC: F16G15/08
Filed: 1964-07-01
Abstract: 1,046,368. Securing ends of ropes. BRITISH INSULATED CALLENDER'S CONSTRUCTION. July 1, 1965 [July 1, 1964], No. 27173/64. Heading B8B. A swivel coupling permitting relative rotational movement only of ropes &c. comprises first and second parts 1, 2 rotatable relative to each other about the coupling longitudinal axis, the first part 1 having an axially projecting spindle 3 terminating in a head 5 and second part 2 having a sleeve 11 fitting over the head and terminating in an inwardly directed flange 10 extending between the head 5 and the part 1. The head 5 is threaded on to the spindle end 4 and locked thereon by pin 6. A thrust bearing comprising members 13, 14, 15 of P.T.F.E. impregnated sintered metal alternately arranged with hardened steel washers 16, 17, 18, 19, 20 is located between the head 5 and the flange 10. The sleeve 11 is internally threaded on to a threaded projection 28 of the part 2 and is locked thereon by grub screw 31. A ring nut 25 is threaded on to the internal thread of the sleeve 11 and locates the head 5 via a bearing bush 7 of P.T.F.E. impregnated sintered metal. The flange 10 of the sleeve is located on the spindle 3 via a similar bearing bush. Seals 26, 30 and a sealing cap 32 are provided to retain a lubricant in the area of the relatively moving parts of the coupling. In the embodiments of Figs. 2 and 3 (not shown), the thrust bearing comprises a single and two P.T.F.E. impregnated porous metal washers respectively, the two in the latter case being separated by hardened steel washers.
Patent GB-813682-A (GB)
Title: Improvements in intercommunication systems
IPC: H04M9/00
Filed: 1954-09-20
Abstract: 813,682. Telephony over power circuits. HOWARD, R., and COCHRANE, C. P. M. Sept. 20, 1955 [Sept. 20, 1954], No. 27197/54. Class 40 (4). In apparatus for carrier-wave intercommunication over power lines, comprising a transmitter and a receiver the latter of which includes a detector, for rectifying both incoming carrier-wave signals constituting ringing signals and incoming communication signals, and an amplifier to which the rectified signals are applied: the amplifier has two conditions of operation in the first of which it responds to the rectified carrier-wave signals and operates a call-indicating device and in the second of which it energizes an electro-acoustic transducer, and switching means are provided for selecting the condition of operation. Speech currents from a microphone 10, Fig. 1, are amplified in a valve 15 and applied to the grid of a pentode 25 to modulate the output of oscillator 26 the modulated output being applied to line over plug 1. Incoming signals from plug 1 are selected by tuned circuits 37, 38, 39, detected by rectifier 43 and amplified in valve 45 before reproduction in a receiver 52. In the rest position, i.e. with cradle switch 21 depressed H.T. line 20 to the transmitter is opencircuit, the primary of the receiver output transformer 51 is short-circuited and valve 45 which includes a buzzer 48 in its anode circuit is biased almost to cut-off by a potential developed across a divider comprising resistors 49, 53. Incoming carrier signals which, because of the high H.T. in the standby condition arising from the small load and the low bias on pentode 25 arising from the large capacity and uncharged condition of transmitter condenser 34, are at a high level, cause the buzzer 48 to be energized, the H.T. on valve 45 also being higher than normal because of the standby condition and providing initially a heavier current to the buzzer. The ringing circuit is interrupted by cradle switch 21. Mains power on the line is rectified in a rectifier 5 and smoothed in a filter comprising components 6-8, a gas tube 57 indicating " H.T. on." Different frequencies are used for the two directions and the system may include any number of stations. A hybrid arrangement, Fig. 2 (not shown), is described with reference to a system using the same or similar frequencies in both directions. In a suggested alternative arrangement a Shmitt trigger circuit including a buzzer in the anode circuit of the second valve for signalling is modified by the cradle switch to form a two-stage communication amplifier. Condenser and inductance phase strapping networks for signalling over three phase mains are described with reference to Fig. 4 (not shown), and a unit containing such a network which can be screwed into a screw-type lampholder is described with reference to Fig. 5 (not shown). The use of transistors and printed circuits is also suggested.
Patent GB-321019-A (GB)
Title: Improvements in glands or fluid-tight sliding joints
IPC: F16J15/32
Filed: 1928-09-22
Abstract: 321,019. Hague, A. V., and Hattersley & Davidson, Ltd. Sept. 22, 1928. Cup-leather packing.- In packing comprising two or more cup-leathers, the lower leather a is secured by a screw ring d and the upper leather g by a gland i, washers h, f being placed above and below the flange of the leather g. Alternatively, all the leathers may be secured by a single gland, the flanges of the leathers being separated by washers, rotation of which may be prevented by means of keys. Specifications 10875/10, 102,019, and 272,649 are referred to.
Patent GB-645815-A (GB)
Title: Improvements in motor-cycle saddles, and pillion seats
IPC: B62J1/12
Filed: 1948-10-21
Abstract: 645,815. Combined saddle and pillion seats for motor-cycles. WHITEHEAD, E. Oct. 21, 1948, No. 27345. [Class 136 (iii)] In a combined saddle and pillion seat for a motor cycle each part consists of tension springs 24, 17 connected intermediate the ends of the combined saddle and pillion seat to a transverse bar 16 which is supported by the usual saddle springs 19. The combined saddle and pillion seat comprises a metal under frame having a saddle-shaped forward part 10 and a parallel rear part 11. The under frame is shaped at its forward end to form an inverted U-shaped part 12 adapted to be attached to the usual saddle bolt. The rear part 11 is provided with holes 15 for struts connecting it to the motor-cycle frame. The tension springs 24 extend from the part 12 to the bar 16 and the springs 17 from the bar to a slightly arched transverse member 18 at the rear of the under frame. The bar 16 is bent rearwardly at its centre 16a. Reinforcement strips 30 are provided on the inside of the under frame.
Patent GB-874479-A (GB)
Title: Means for preventing or reducing contamination of oven doors
IPC: C10B25/16
Filed: 1958-08-26
Abstract: 874,479. Coke-oven doors. GELSENKIRCHENER BERGWERKS A.G. Aug. 26, 1958 [Aug. 27, 1957], No. 27383/58. Drawings to Specification. Class 55 (1). In a method of preventing or reducing the formation of tarry constituents or oily condensates on a coke-oven door, door frame and parts in the vicinity thereof which door is provided with metal sealing means and/or packing means having a sealing action, a regulated quantity of cleansing gas is introduced under pressure means the oven floor from outside the coke-oven door into spaces formed between the door, door frame and sealing means so as to mix with gas produced in the oven. The calorific value and composition of the coke-oven gas produced may be controlled by the nature and quantity of cleansing gas employed. The cleansing gas may have a low or high calorific value or may comprise a mixture of such gases. Specified examples of cleansing gas are producer gas, generator gas, coke-oven gas, blast-furnace gas, flue gas and steam. Apparatus for carrying the above method into effect is characterized in that a supply pipe is arranged in the vicinity of the oven floor and extends through the oven door, terminating in the vicinity of the oven floor.