baber/WOPTO huggingface dataset:
Patent GB-874121-A (GB)
Title: Improvements in and relating to heat exchangers
Inventor: RITZ HEINRICH HUGO LUDOLF
IPC: F28F9/02
Filed: 1958-04-14
Abstract: 874,121. Tubular heat exchangers; watertube steam boilers; superheaters. CARSONS & CO. Ltd., C. A. April 6, 1959 [April 14, 1958], No. 11821/58. Classes 64(3), 123(2) and 123(3) In a tubular heat exchanger an annular tube unit 2 comprising a bundle of tubes 3 is supported in a casing 1 by a member 5 extending axially through the annulus and having radially extending walls 4 disposed at an angle with respect to the tubes and dividing the space between the tubes and the support member 5 into a plurality of separate flow channels. The angular relationship between the walls 4 and the tubes 3 may be effected by using helical tubes in conjunction with straight walls 4 or (as shown) by employing tubes straight for most of their length in conjunction with helical walls 4. In the apparatus shown cooling gas from a nuclear reactor flows axially through the casing 1 and over the tubes 3 through which water passes in a counterflow direction to that of the gas. The water enters the heat exchanger through an inlet 8 and flows through the hollow support member 5 to a header 6. From the header 6 the water flows through the tube to an outlet 9. A plurality of the tube units 2 may be interconnected in one or more casings to constitute sections for the preheating, boiling and superheating of water. The apparatus may also be used for heat exchange between gases or liquids and a further application mentioned is the cooling and removal of moisture particles from steam. Specification 873,552 is referred to.
Patent GB-365903-A (GB)
Title: Improvements in the recovery of precious metals
IPC: C22B11/10
Filed: 1931-04-21
Abstract: In the extraction of precious metals by amalgamation in which pulp containing the metals is passed over a surface coated with an amalgam of a metal high in the electropositive series, e.g. zinc, magnesium, or cadmium, sodium bisulphate is added to the pulp as an activator for the amalgam.
Patent GB-294972-A (GB)
Title: Improvements in the manufacture of diazo-types
IPC: G03C1/61
Filed: 1927-05-03
Abstract: 294,972. Grinten, F. van der, and Chemische Fabriek L. van der Grinten. May 3, 1927. Diazonium compounds. - Diazonium chlorostannates are prepared by diazotizing the following amines and adding stannic chloride :-pamino-dimethylaniline, p - amino - o - chloro - dimethylaniline, p-amino-1 : 3: 5-di-isoamylxylidine, p-amino-dimethyl-m-toluidine, and pamino-dimethyl-1 : 3 : 5-xylidine.
Patent GB-924671-A (GB)
Title: Improvements relating to hydraulic monitors
IPC: B05B3/14
Filed: 1959-04-08
Abstract: 924,671. Hydraulic monitors. CHOO KON HEE. July 6, 1960 [April 8, 1959], No. 11850/59. Class 68 (1). In an hydraulic mining monitor in which the nozzle is connected to a supply pipe by a coupling that allows of universal movement of the nozzle with respect to the supply pipe, such movement is imparted to the nozzle by means associated with the nozzle and controlled by an operator remote from the nozzle. The means consists of a lever 19 secured at 20 to the nozzle 21 and sliding in a ball 18 of a universal joint mounted between the piston-rods of a pair of opposed, hydraulically actuated rams 16 mounted on a platform 16. The platform 16 can be caused to slide up and down in vertical guides 13 of a frame 10, 11 by an hydraulically actuated ram 23 rotating through a crank mechanism 24, 25 a shaft 22 carrying a cam 27 engaging a cam follower 28 that extends from the underside of the frame 10, 11 and is biased against the cam 27 by springs 29. The frame 10, 11, which rests on the ground can be swung on the ground about a vertical securing point 31 by a further ram 32. The rams can be replaced by suitable mechanical or electrical drives, all of said drives being controlled by an operator at a point remote from the nozzle.
Patent GB-397250-A (GB)
Title: Improvements in machines for rolling circular metal blanks or discs
IPC: B21H1/02
Filed: 1932-04-27
Abstract: 397,250. Rolling discs. COLVILLES, Ltd., 195, West George Street, Glasgow, and HAND, T. W., c/o Colvilles, Ltd., Motherwell, Lanarkshire. April 27, 1932, No. 12045. [Class 83 (iv).] Freely rotatable discs B<1> are gradually moved in radially to the bite of overhung rolls 10, 11 which roll and taper them. The disc holders comprise a 3-armed turret 38 at 120‹, which is rotated through 120‹ at a time so that a disc can be placed on one arm holder 42 while the disc on the other arm is being rolled and the third disc is being removed. The turret is rotated from a motor 52 and 3 to 1 gears 44, 45 when the operator starts a one-revolution clutch 48 by allowing pneumatic piston device 59 to withdraw a roller 57 from the scroll cam 56 so that the spring 54 raises one part of the clutch 48 to engage the other part 47 driven from the motor 52. The operator then reverses the device 59 so that the roller 57 presses against the rim of the now raised cam 56 until, after one-revolution, it can enter the drop 56a whereby the cam 56 lowers itself and separates the clutch sleeve 48 from 49. When a turret arm comes to rest it engages a stop 61 raised by a hand operated pneumatic piston 64, and the blank is clamped by hand operating a pneumatic piston 81 which raises and forces it against a fixed clamp 72. The clamp 72 has an initial screw adjustment. To feed the blank quickly towards the rolls, the whole turret driving and adjusting mechanism is fed in gradually by feed screws 90, driven at first quickly by a high speed motor 99, and when the disc just enters the rolls the motor 99 is stopped, a magnetic clutch 100 is operated through which the slower motor 102 starts a slower feed of the blank &c. while the rolls operate on the blank. On completion the motor 102 is declutched by hand and motor 99 is started in reverse to withdraw the turret and work quickly from the rolls. The clamp 41 and the stop 61 is lowered by their handoperated pneumatic pistons and the turret is started on its rotation for the hand removal of the finished disc and feed of the next one. The roll pass is adjusted at one or both ends of motor 21 and gearing driving end screws ; the drive to one screw can be uncoupled by a clutch 26.
Patent GB-938020-A (GB)
Title: Character adding device for typewriting equipment
IPC: B41J1/02
Filed: 1961-04-05
Abstract: 938,020. Typewriters. MECHANICAL ENTERPRISES Inc. April 5, 1961 [April 18, 1960; Oct. 7, 1960], No. 12124/61. Class 100(4). A device for use on a typewriter to print special characters not available in the machine comprises a handle 43 and a body part 40, the latter having slidably mounted therein a shaft 55 retracted by a spring 60 and carrying a head 52 with the required character thereon; the body part 40 is slid on to devices fitted to the usual type-bar guide G and positioned as described below so that when a key of the machine is operated, a rounded end (or a cap of soft material on the end) of the shaft 55 is engaged by a type-bar B between the upper and lower case letters and a print of the character on the head 52 is made. In one form, a bracket 11 is attached to the guide 6 to receive the part 40 and consists of two vertical arms 25 attached by looped parts 22 to side members 15 joined by a cross-piece 17. By means of grooves 16 in the members 15, the bracket 11 can be slid on to the prongs G<SP>1</SP> of the guide, a screw on the crosspiece 17 engaging the upper edge of the opening G<SP>11</SP> in the guide to secure the brackets in position. Grooves 45 in the sides of the body engage the arms 25, and a pointed screw 32 adjustably secured to a leaf-spring 28 on one arm 25 and projecting through a slot thereon engages an indentation 46 in one of the grooves 45 to position the part 40 correctly. The looped parts 22 can be bent to adjust the position of the arms 25 both vertically and laterally. Instead of the bracket 11, separate vertical arms 25 may be attached to the prongs G<SP>1</SP>. Other means than those described for holding the bracket 11 on the guide G and for positioning the part 40 on the bracket 11 are described.
Patent GB-604420-A (GB)
Title: Yarn winding machine
IPC: B65H54/14
Filed: 1944-09-28
Abstract: 604,420. Winding yarn. CLARK, D. M. (Abbott Machine Co.). Sept. 28, 1944, No. 12178/47. Divided out of 604,354. Drawings to Specification. [Classes 120(ii) and 120(iii)] A yarn winding machine having there in a plurality of winding units and bobbin supplying mechanism therefor and means for causing relative travelling movement between the units and the supplying mechanism is characterised by the provision of a cam adapted to be contacted by the yarns of the successive winding units to deflect each such yarn into position to be engaged by an end portion of a new bobbin supplied by the supplying mechanism. The cam is preferably so located that it is engaged by the yarn as it extends between the thread guide of each unit and the already discharged filled bobbin of that unit. The invention is particularly described as applied to the machine described in Specification 604,354. Specification 522,664 also is referred to.
Patent GB-1387663-A (GB)
Title: Rear view mirror
IPC: F16C11/06
Filed: 1972-03-16
Abstract: 1387663 Rear-view mirrors J ENGELMANN 16 March 1972 [20 March 1971] 12220/72 Heading B7J [Also in Division E2] A rear-view mirror mountable in or on a vehicle comprises a housing 1 for a mirror reflector 2, the housing 1 being connected by a ball-joint 3, 5, to a foot member 4 securable by screws 6 to the vehicle 7, the joint consisting of a ball 3 integral with or fixed to the housing 1 and a socket 5 integral with or fixed to the foot member 4, wherein the ball 3 is divided into segments by parallel slots 8 so that the effective outer diameter of the ball 3 may be adjusted by means of a conical spreading member 11 and a screw 12. The adjusted ball is forced into the socket so that the adjustment means 11, 12 are concentrated when the housing is mounted on the foot member.
Patent GB-118333-A (GB)
Title: Improvements in and relating to Registering Apparatus chiefly for use in Registering the Amount of Feed of Granular and like Substances.
Inventor: LEA JAMES EDWARD
IPC: G01F15/07
Filed: 1917-08-27
Abstract: 118,333. Lea, J. E. Aug. 27, 1917. Integrating. - In registering apparatus of the kind described in Specifications 8704/07 and 9723/09, applied particularly to the registration of the amount of feed to furnaces or the like, as described in Specifications 11459/14 and 103,517, [Class 106 (i), Calculating &c.], a non-sliding counter is employed, the counteractuating pinion being movable endways along the integrating-drum and yieldingly mounted to allow of movement towards or away from the drum. The integrating-drum 7 is mounted in brackets 4 in a casing. 1 having a glazed opening 3 in front of the counter 15, and is driven from a shaft 5, which may receive its motion from the driving-gear of a chain-grate stoker. A sliding rod 16, connected to the apparatus controlling the depth of the layer of fuel fed to the furnace, carries a pinion 19, yieldingly engaging the drum 7, and a pinion 18 meshing with the pinion 19 and with a long pinion 10 driving the counter through gearing 12, 13. The pinion 19 rotates on a pin 18<a>, Fig. 4, carried by an arm 17 loose on the rod 16 but slidable with it, the arm 17 being adjustable and yielding with respect to a. bracket 20 fast on the rod 16 by means of a screw 22 and a pin 23 fitted with a spring 24. The pinion 18 rotates on a boss on the arm 17. The yieldinglymounted pinion may be applied to apparatus in which the drum 7 rotates about a vertical axis,
Patent GB-559868-A (GB)
Title: Improvements in electro-magnetic relays
IPC: H01H50/20
Filed: 1942-09-01
Abstract: 559,868. Electromagnetic switches. ELECTRICAL APPARATUS CO., Ltd., WALTON, J. R., and WOODGER, F. N. Sept. 1, 1942, No. 12313. [Class 38 (v)] A shock-proof electromagnetic relay is actuated by the simultaneous movement towards each other of the two cores 20, 21; shock will move both cores in the same direction and there will be no actuation. The core 20 carries, in the form shown, a board 17 carrying two spring contacts 19 which normally engage each other. The core 21 has fixed to it a rod 28 terminating in a member 29 adapted, if both cores move together till they abut against a key 38, to separate the contacts 19 and so break the circuit. The cores are biased by springs 22 the strength of which is adjustable by rotating a drum 30 and with it a cam 39 which actuates two tubes 25, against abutments 24 on which the springs bear. In modifications, the cores 20, 21 each operate a switch, the switches being in parallel or series so that operation of both is necessary to control a circuit.
Patent GB-1098708-A (GB)
Title: Improvements in protective footwear comprising steel toe-caps
IPC: A43B7/32
Filed: 1966-03-22
Abstract: 1,098,708. Boots .&c. DESMA-WERKE G.m.b.H. March 22, 1966 [March 25, 1965], No. 12457/66. Heading A3B. [Also in Division B5] A safety shoe having a steel toe cap 14 has a sole of elastic material moulded on to the upper consisting of-an outer sole 18 (Fig. 1) of soft abrasion resistant material and, in the region of the steel toe cap 14 a sole part 17a of hard, pressure resistant material - which extends through as far as the tread surface. The steel toe cap 14 may be placed over the upper 10 or the upper 10 may terminate at the edge of the steel toe cap 14 which is then lined by the shoe lining 27 or, if an unlined shoe is being made, by a separate lining (not shown). The steel toe cap 14 has an inwardly directed flange 15 which preferably rests on a supporting plate 29 e.g. of hardboard having the shape of the toe of the shoe. The hard pressure resistant material is moulded into a U-shaped part below the toe cap 14 and may also be moulded over the toe cap 14 and around the edge of a bottom filler 13 to form an intermediate sole edge 17 (Fig. 2). The sole is preferably injection moulded in a mould consisting of two side moulds 21, a movable bottom plunger 20 and toe cap mould 31. The side moulds 21 have a U-shaped shoulder 23 to which pieces 24 may be added to vary the thickness of the sole part 17a With the plunger 20 in the raised position as shown. in Fig. 4, pressure resistant material e.g. hard p.v.c., is injected to form the intermediate sole edge 17, the sole part  17a and the toe cap cover 16. The plunger 20 is then lowered (shown dotted) and abrasion resistant material e.g. soft p.v.c.is then injected to form the outer sole 18.
Patent GB-1000750-A (GB)
Title: Towed body for variable depth sonar
IPC: G10K11/00
Filed: 1961-04-06
Abstract: 1,000,750. Echo-sounding devices. MINISTER OF NATIONAL DEFENCE, CANADA. April 6, 1961 [Aug. 31, 1960], No. 12471/61. Heading H4D. A towed body for housing a variable depth sonar transducer comprises a sound transparent window section 11, Fig. 1, an upper dome 10, an under dome 12 and an empennage 13, the upper dome being provided with a tow point 14 for connection with a tow cable, the towed body being of streamlined cross-section and the under dome including ballast to provide negative buoyancy. The window section 11 may be of heavy gauge aluminium reinforced by a plurality of T-section vertical ribs (not shown in Fig. 1) fixed with the tops of the T's adjacent the window and the legs of the T's bent to face the transducer 15. The inside of the upper dome may be provided with a reflecting layer 16 and an absorbing layer 18 to shield the transducer from background noises, e.g. from the towing ship; the bottom dome may be provided with an absorbing layer 17 to shield the transducer from noise reflected from the sea bottom. The sound reflecting material consists of a perforated rubber sheet fixed between two solid sheets which do not collapse under hydrostatic pressure, and the absorbing material may be aluminium loaded rubber.
Patent GB-741386-A (GB)
Title: Improvements in or relating to electric motor controllers
IPC: H02J7/14
Filed: 1953-05-05
Abstract: 741,386. Controllers; control of D.C. motors. KAYE, E., SHARP. J. R., and ARNOT, A. E. R. May 5. 1954 [May 5, 1953], No. 12525/53. Class 38(3) A battery-operated truck has a traction motor 11 in series with a contact 12 operated by contactor winding 13 which is controlled by a manually operated switch 40. When a two-way push button switch is actuated to close contacts 27, a solenoid winding 21 is energized to close contacts 18 of a circuit-breaker. The release of the push button opens contacts 27 and closes contacts 26, an alternative circuit for the winding 21 being completed through contacts 18, a bimetallic overload strip 33, and resistor 30. Sufficient current is passed through the resistor 30 to enable the coil 21 to hold the circuit-breaker closed when the push button is released unless there is an overload or the line voltage falls to a dischargedbattery value, it being necessary to re-close the contacts 27 to re-make the motor circuit after voltage failure. A signal lamp 32 is energized when the circuit-breaker is closed and the push button is released.
Patent GB-1002473-A (GB)
Title: Improvements in or relating to stay devices
Inventor: HARRISON RONALD GEORGE
IPC: E05C17/22
Filed: 1963-03-29
Abstract: 1,002,473. Stay devices; clamp fastenings. GENERAL ELECTRIC CO. Ltd. Dec. 17, 1963 [March 29, 1963], No. 12555/63. Headings E2B and E2F. A stay device for hinged parts, e.g. a window or door, comprises a stay bar 1 pivotally connected to one part and slidable through a guide member 4 pivotally mounted on the other part, a locking collar 22 operated by a lever 26 engaging over the upper part 6 of the guide member and being provided with diametrically opposed keys 24 each engaging a keyway 19 formed on the outer surface of the part 6. The arrangement is such that in one position of the collar 22 each key 24 is located in one or other of the upper end portions 21 of the keyway 19, in which position the bar 1 is free to slide through the guide member, but on rotating the collar 22, each key 24 is moved to a position beneath a horizontal part 20 of the keyway and the collar 22 acts on the bar 1 to clamp it in the guide member. As shown the bar 1 is formed with indentations 18 adapted to cooperate with a corresponding projection 17 formed at the bottom of the upper part 6 of the guide member.
Patent GB-623668-A (GB)
Title: Improvements in or relating to circuit-arrangements for limiting and detecting frequency-modulated oscillations
IPC: H03D3/06
Filed: 1947-05-09
Abstract: 623,668. Frequency modulation. PHILIPS LAMPS, Ltd. May 9, 1947, No. 12574. Convention date, May 14, 1946. [Class 40 (v)] In a frequency modulation receiver, residual amplitude - modulation not excluded by the limiter valve 1 is balanced out by taking the detected signal jointly from the discriminator load impedance 6, and from an impedance 7 traversed by the current through the limiter. The input FM wave is applied to the control grid 2 of the pentode limiter valve, and the amplitude-limited wave is fed from the anode circuit by a coupling 3 to a normal frequency discriminator 4. The discriminator output is rectified by a diode valve 5 (which may be in the same envelope as the limiter pentode) with series load impedance 6. Any undesired amplitude modulation that passes the limiter gives an interfering signal across the impedance 6, and this is balanced out by an equal signal appearing across the cathode impedance 7 so that the interference does not appear on the grid of the signal amplifier 8. Both impedances 6, 7 are byepassed for carrier frequencies by condensers.
Patent GB-196485-A (GB)
Title: Improvements in machines for washing and wringing clothes and other materials
IPC: D06F21/02
Filed: 1922-05-04
Abstract: 196,485. Cartwright, J. May 4, 1922. Washing-machines with enclosed rotary receptacles and rollers; two-roller wringers, driving- gear for.-Clothes and cleansing materials are placed in a cylinder A having partially closed ends rotated in a tub G by means of a chain wheel on a shaft F and a chain encircling the cylinder, and having internal circumferential paddles C to feed the clothes to rollers D extending longitudinally through the cylinder and driven by chains J from chain wheels or shafts F, H. This alternating wetting and squeezing is continued until the clothes are then withdrawn as they leave the rollers.
Patent GB-1424424-A (GB)
Title: Catalytic structures
IPC: B01D53/94
Filed: 1973-03-15
Abstract: 1424424 Catalytic converters for waste gases, coated catalytic converters COMPTOIR LYON-ALEMAND-LOUYOT 15 March 1973 [17 March 1972] 12585/73 Headings B1E, B1F and B2E [Also in Division C1] Multi-layered supported catalysts comprise a metallic support covered, at least partly, by a layer of an aluminide of Co, Ni, Fe and/or Cr, the aluminide layer being covered with an at least 10Á thick layer of α-alumina which supports a catalytic surface layer. An active layer of y- or #-alumina may be disposed between the α-alumina and the catalytic surface layer which may be a platinum group metal or an oxide or sulphide thereof. The metallic support may be of iron, a steel, ferronickel alloy, nickel or a chromium-nickel, cobaltchromium or cobalt-nickel-chromium alloy. The catalysts may be made by contacting and heating the metallic support with a cement containing alumina and the metal aluminide to form a layer comprising the aluminide layer with a solution of an alkaline aluminate to form a layer of hydrated alumina theron, removing the layer from the solution and heating it to convert the hydrated alumina to α-alumina, optionally contacting the α-alumina layer with a solution of an alkaline aluminate and heating the so-formed hydrated alumina layer to convert it to #- or γ-alumina, and depositing a catalytic surface layer thereon, e.g. by impregnation with a platinum sulphoresinate solution and calcination to give platinum. The metal aluminide layer may be deposited by spraying with an oxy-acetylene torch and may be partly oxidised by heating in an oxidizing atmosphere to form a thick layer of alumina before the depostion of the α-alumina. In another embodiment the α-alumina may be deposited by torch-spraying. Stainless steel supports may be coated with nickel, e.g. by painting before coating with aluminide. A honeycomb catalyst structure (Fig. 2a) may be made by stacking alternate flat and corrugated supported catalyst sheets in a truncated conical envelope I and clamping them by means of spiders 2 (not shown) and 3. The metallic supports of the catalyst sheets may be of solid or expanded metal. A multichannel catalyst structure (Fig. 3a) may be made from corrugated sheets 6, 7 of expanded metal and spacer wires 9 welded together in rigid structure 8 to form gas-channels 10, the parts being welded together before or after deposition of the various layers on the sheets 6, 7. In an example a structure of this type is mounted in a casing similar to that fitted to motor vehicles with elastic metal mattresses between the structure and the casing.