baber/WOPTO huggingface dataset:
Patent GB-1269364-A (GB)
Title: Improvements in fluorine containing acrylamides and methacrylamides
IPC: C07C69/653
Filed: 1969-04-29
Abstract: 1,269,364. N-Polyfluoroalkyl acrylamides and methacrylamides. UGINE KUHLMANN. 29 April, 1969 [29 April, 1968], No. 21842/69. Addition to 1,218,758. Heading C2C. Novel compounds of the formulµ are obtained by reacting acrylyl chloride with the corresponding polyfluoroalkyl amine.
Patent GB-1008837-A (GB)
Title: Hydraulic liquid reservoirs
IPC: B60T11/22
Filed: 1964-05-27
Abstract: 1,008,837. Portable containers. FORD MOTOR CO. Ltd. May 27, 1964 [July 2, 1963], No. 21848/64. Heading B8D. [Also in Division F2] A hydraulic liquid reservoir for supplying hydraulic liquid to a master cylinder comprises a substantially airtight container at least part of which is resilient, an outlet from the container being normally sealed by a valve or closure member which is adapted to be opened by a coacting member on the master cylinder when the reservoir is connected to the latter. In one embodiment, Fig. 1, a boss 16 is welded to the top surface 15 of the master cylinder 12 and comprises a lip 23 over which a resilient portion 31 of the reservoir 25 can be fitted. The reservoir 25 also comprises a rigid body portion 28 having a flange 29 to which is secured flange 27 of a resilient portion 26 which is maintained against the surface of the liquid in the reservoir by atmospheric pressure. An internal annulus 32 of the rigid portion 28 is apertured at 33 to provide an outlet for the fluid, this outlet being normally closed by a valve 36, urged into closed position by a spring 38, but opened when the reservoir is attached to the master cylinder by the engagement of valve stem 35 with the top surface 15. In a second embodiment, Fig. 5, a threaded boss 42 is secured to the top surface on the master cylinder and receives in screwthreaded engagement therewith a rigid screwthreaded lower end portion 52 of a resilient container 49 which is urged towards its collapsed state by a spring 58 interposed between its upper end and surrounding strap 55. A seal 53 normally traps hydraulic liquid in the container and prevents it from being collapsed, but is adapted to be pierced, when the container is screwed into the boss 42 by a projection 48 which is carried by the boss 42, to allow the liquid to flow into the master cylinder. The spring 58 may be dispensed with by moulding the container 49 in its collapsed state and of resilient material whereby it is self-collapsing. In the modification of Fig. 8, a rigid container 62 has disposed within it a resilient bag 67 which is sealed at its lower end to the screw-threaded lower portion 63 of the container 62, bleed holes 66 allowing atmospheric air to act on the upper surface of the bag 67 to cause it to collapse when liquid is withdrawn from the outlet 68.
Patent GB-731502-A (GB)
Title: Improved electrical switch mechanism
IPC: H01H1/22
Filed: 1953-08-07
Abstract: 731,502. Controllers. GENERAL MOTORS CORPORATION. Aug. 7, 1953 [Aug. 18, 1952], No. 21858/53. Class 38 (3). Relates to a multi-pole switch for use in the motor control system of a diesel-electric locomotive, the switch being adapted to isolate a defective traction motor from the power and dynamic braking circuits, and an auxiliary switch being provided to prevent over-loading of the main generator when the defective motor is removed. The switch has multiple pairs of stationary contact carriers 2 with contact tips 12, whilst a rotatable part 14 has a contact carrier 16 upon which is mounted a low-voltage control switch 24. The part 14 may be rocked between the fixed contacts 12, and, as shown, a spring 52 forces a left-hand contact member 40, which is pivotally attached to the rotatable part by pin 42 and slot 46, against a stationary contact 12. Before the main contacts are engaged, arc protective contacts 62, 64 engage and prevent arcing. If it is desired to break the circuit through the particular rotatable part 14 shown, a cam 54 is turned clockwise so that pins 60 on the movable contacts 40 are both pulled inwardly by engagement with slots 56. Both contact members 40 are thereby moved away from the respective fixed contacts 12 and the left-hand contact, when so actuated, operates a button 66 of the low-voltage control switch 24 to change the connections of the conductors 29. In a modification, Figs. 4-6 (not shown), contact members, similar to the members 40, are connected to the rotatable part 14 by laminated flexible conductors and are pivoted on pins situated towards the lower end of the contact carrier. An extension on each contact member co-operates with a leveractuated cam mounted on the carrier.
Patent GB-1038975-A (GB)
Title: Improvements in or relating to portable seed dispensers
IPC: A01C7/02
Filed: 1962-06-07
Abstract: 1,038,975. Seed distributers. R. GRANT. June 7, 1963 [June 7, 1962], No. 22006/62. Heading B2F. A device, Fig. 1, for dispensing seed &c. comprises a base member 1, a seed hopper 5, a strip of material 4 defining a path 6 for the seed to an edge of the base member, and a sheet 2 of transparent material covering at least a part of said path in such a manner as to enable the passage of the seed to be observed, an adjustable constriction 7 being provided between the hopper 5 and the path 6. The strip 4 is of metal and its corners which form part of the hopper are maintained in position by stride 8. A screw 9 is provided to adjust the constriction. In the embodiment of Fig. 2, the seed path is formed between the strip 4 and a second strip 13, the constriction 7 being adjusted by movement of the ends 15 of the strip 4. The strip 4 and the sheet 2 are secured in position by screws 3 and the seed fall through an opening 12. In the embodiments of Figs. 3 and 4 (not shown) a dispensing device is provided on each side of a base plate. The rate of seed feed may be varied by means of slides.
Patent GB-1454202-A (GB)
Title: Filter presses
IPC: B01D25/12
Filed: 1974-05-17
Abstract: 1454202 Filter press U PASSAVANT AG MICHELBACHER HUTTE [trading as PASSAVANT WERKE MICHELBACHER HUTTE] 17 May 1974 [6 Aug 1973] 22069/74 Heading B1D A resilient connection between the filter plate 1 to be moved and plate-spreading chain or cable 2 prevents the sudden jerking of the plate characteristic of prior art filter presses when a plate begins to move. In Fig. 1 pawl 3 is in the form of a plastic-coated leaf spring and pivoted to chain 2. Before plate 1 starts to move pawl 3 pulls lever 8 against stop 14, so that pin 13 on lever 8 lifts locking bar 7 to release plate 1 from the adjacent plate 1'. In other constructions pawl 3 is rigid the leaf springs are mounted on the plates. In Fig. 2 (not shown) leaf spring (15) opposes pivoting of rigid lever 8 until it engages stop (17) and lifts bar 7 as in Fig. 1. In Fig. 3 (not shown) bar 7 is replaced by a leaf spring (20) which opposes pivoting of lever 8 against stop (23). In Fig. 4 (not shown) a leaf spring (25) also acts as a locking bar. In Fig. 5 lever 8 is replaced by a leaf spring 28 having an extension 32 which normally holds locking bar leaf spring 31 down against its resilience. In Fig. 6 (not shown) lever 8 and locking bar 7 are both replaced by one integral leaf spring. In Fig. 7 pawl 3 engages curved leaf spring 40 depressing it so that lug 42' on the spring of the adjacent plate no longer engages in aperture 43 and plate 1 is free to move. In Figs. 8, 9 (not shown) pawl 3 engages and bends a pack of leaf springs round a curved stop (46) to progressively increase the force applied to plate 1, a locking bar (45) being lifted from engagement with the stop on the next plate. In Figs. 10 to 12 (not shown) pawl 3 engages members (50) pivoted on leaf spring packs (53) on the press plates. The initial rotation of the member (50) of the end plate moves lugs (57) out of engagement with fixed toothed bars (55, 56) which extend lengthwise of the press and normally hold all the plates. The end plate is then free to move and spring pack (53) inhibits the acceleration. A spring (59) holds member (50) with lugs (57) in the disengaged position until the plate has been moved into contact with plates previously moved and the next plate 1' moves into contact therewith, whereupon projection (61) on plate 1' releases member (50).
Patent GB-957478-A (GB)
Title: Liquid holders
IPC: B44D3/14
Filed: 1961-06-20
Abstract: 957,478. Artists' paint containers. D. DOUGLAS. June 20, 1961, No. 22168/61. Heading B6P. An artists' paint container or a liquid holder comprises a synthetic plastic sheet 10 having a mixing tray 28, a plurality of liquid containers 12 each having a removable closure cap 14 secured by a strap 15 to the sheet 10; the complete holder comprises a single moulding. Each cap 14 has a central depending portion 16 with a peripheral ridge 24 which engages in a groove 26 in the inner periphery of its associated container. In another embodiment (not illustrated) the inner groove 26 is dispensed with, the ridge 24 alone providing a satisfactory seal. The synthetic plastic material such as polyethylene, is translucent so that the colour of the liquid or paint in each container is shown.
Patent GB-461314-A (GB)
Title: Improvements in, and relating to, bricks
IPC: E04C1/41
Filed: 1935-08-06
Abstract: 461,314. Building - blocks. WARBURTON, H., and WRIGHT, W. A. Aug. 6, 1935, No. 22192. [Class 87 (i)] A non-refractory building-brick made for example of burnt clay, is formed with one or more interior spaces or passages extending parallel to the bedding face, the said spaces being filled with material to insulate heat or sound. In the brick shown in Fig. 1, the passage b extends longitudinally completely through the brick and is filled with insulating material c. Fig. 3, the longitudinal cavity d is open at one end only. In Fig. 4, a number of cavities or passages f are formed longitudinally of the brick. In all the modifications, the ends of the cavities or passages may be closed by cement plugs, such as e, Fig. 3. Magnesia, glass wool, slag wool, sawdust, cork, hair, felt, rubber, asbestos, diatomaceous earth, and metal foil are described as suitable filling materials.
Patent GB-1148936-A (GB)
Title: Improvements in or relating to separation apparatus
IPC: B01D63/06
Filed: 1966-05-19
Abstract: 1,148,936. Membrane support; separating gaseous mixtures. GULF GENERAL ATOMIC Inc. 19 May, 1966 [25 May, 1965], No. 22235/66. Headings B1L and B1X. Separation apparatus for separating a first fluid component from a fluid mixture of the first component and a second component, for example for desalination of sea-water, comprises a semi-permeable membrane sheet 29<SP>1</SP>, sheet-like membrane supporting means 33<SP>1</SP> comprising a layer of particles 41 of predetermined particle size attached to substrate 43, for example a layer of sand particles on a substrate which is a porous felt of polyester fibres, and means for supplying the fluid mixture under pressure to one side of the membrane sheet. In the apparatus shown in Fig. 1, solution to be treated enters at 23 and flows into solution supply layers 31<SP>1</SP> of membrane arrangement 27. In arrangement 27, sandwiches of membrane 29<SP>1</SP> and solution supply material 31<SP>1</SP> are interleaved with support layers as described in 1,113,630 and wrapped spirally about perforated central outlet tube 25. Solvent flows spirally inward to tube 25 while more concentrated solution leaves at 37. The membrane may be cellulose acetate (exemplified); polyvinyl methyl ketone; a copolymer of polyvinyl alcohol and a mixture of methyl vinyl ether and maleic anhydride. Use of the apparatus in the separation of gaseous mixtures (none specified) is mentioned.
Patent GB-1473099-A (GB)
IPC: B01D45/12
Filed: 1974-08-05
Abstract: 1473099 Centrifugal separator KELBURN ENG CO Ltd W P MACFARLANE and J F HARVIE 5 Aug 1974 [10 May 1973] 22309/ 73 Heading B2P A separator for removing solid and liquid contaminants from gaseous flows comprises an inlet duct 3 leading to a deflector 12 which is arranged to divide gaseous flow from the duct 3 into several streams to which the deflector imparts a vortical motion in such a way that the flow passes tangentially into a chamber 17 of circular cross-section leading to an outlet duct 4 of the separator, part of the circumferential extent of the chamber wall having a volute depression 19 on its inner surface leading into an escape opening which extends across the full width of the depression and which provides a passage out through the chamber wall, at least partially intermediate the deflector 12 and the outlet duct 4, the opening allowing exit of solid or liquid contaminants which are removed from the flow by the centrifugal action of the vortical motion of the flow on the contaminants. The separator may be used for receiving solids and water from steam flowing from a boiler, connected to the duct 3, to a turbine, connected to the duct 4. The exit opening for the contaminants lead to an escape duct 5 to which a pipe can be secured to act as a collector vessel for separated solids or water A float or bucket automatic steam trap may be connected to the base of the pipe for the discharge of separated water. The deflector 12 consists of a frusto-conical hub portion 13 provided with outwardly projecting vanes 15 defining passages 16 which narrow in the direction of flow.
Patent GB-389008-A (GB)
Title: A lamb marking and operating cradle
IPC: A01K1/06
Filed: 1932-08-09
Abstract: 389,008. Appliances for holding animals. SHANNON, J. Y., Rodney Downs, Ilfracombe, Queensland, Australia. Aug. 9, 1932, No. 22338. Convention date, Aug. 24, 1931. [Class 81 (ii).] A lamb marking and operating cradle comprises a frame of metal bars, one end 1 of which is straight, the other 4 semicircular, and having two straight sides 2 provided with bearings 3 for swinging upon pins in posts fixed to the ground. A clamping frame 5 is hinged at 7 to the straight end 1 of the cradle and is shaped to provide openings 6 through which the hind legs of the lamb are slipped. A bed of canvas, leather or other material is stitched on to the cradle ends and supports the lamb which is placed on its back with its head at 8 and tail at 8b. A securing strap 9 attached to one side at 10 and fitting over a pin on the other side passes behind the forelegs. When the operations are completed, the legs are freed, the strap released, and the animal tipped out at the end 4 by tilting the cradle.
Patent GB-995585-A (GB)
Title: Improvements in or relating to devices for making, repairing or modifying punched tape
IPC: G06K21/08
Filed: 1963-06-05
Abstract: 995,585. Punching devices. H. H. ROSS. May 21, 1964 [June 5, 1963], No. 22339/63. Heading B4B. A device for punching tape 22 comprises a stylo-punch 40, a bed plate 10 having rows 11 of holes 12 and pins 20 to engage in sprocket holes 21 in the tape and a transparent masking plate 15 of synthetic plastics material having rows 27 of holes 28 corresponding to the rows of holes in the plate 10, the plate 10 having pegs 16 to 19 for locating the plate 15 in position. The plate 10 is mounted on a base-plate 13 of synthetic plastics material provided with an opening 24 for punchings. The plate 10 has a slot 50, which may extend diagonally, for guiding a razor blade during a splicing operation. When not in use, the punch is located in a bore 46 in the plate 13.
Patent GB-1104684-A (GB)
Title: Improvements in or relating to apparatus for, and methods of, testing lenses
Inventor: BAKER LIONEL RICHARD
IPC: G01M11/02
Filed: 1964-05-29
Abstract: 1,104,684. Testing lenses photo-electrically. SECRETARY OF STATE FOR DEFENCE. Aug. 13, 1965 [May 29, 1964], No. 22343/64. Heading G1A. Apparatus for testing lenses includes means for scanning a beam of light across the lens to be tested to build up a scanning raster and a position-sensitive photo-electric system situated at the focus of the lens. Infrared light from a linear filament 1, Fig. is chopped by a chopper 4 and falls on a mirror drum. The mirrors M1 - M24 are so angled that a 24 line raster is traced out on the lens 13 to be tested. A collimator 12 is provided for testing lenses designed to receive parallel light. Pulses of light passing through lens 13 are focused on to a Wallmark diode 14, which emits two signals x, y proportional respectively to the distance in the x and y directions of the focused image from the centre of the diode. The diode also emits a signal z which indicates when the image is within the region of proportionality of the x and y signals. The x and y signals are applied to the deflection plates of a cathode-ray tube and the z signal, after suitable shaping is applied to brighten the C.R.T. spot in the deflected position. The resulting pattern of dots reproduces the image formed by the test lens and for a good lens is concentrated at the middle of the screen. In place of the C.R.T. two parallel plates may be provided in the light path, rotatable by servosystems to bring the image back to the centre of the diode. The displacements of the plates indicate the quality of the lens. A further plate 11 is provided for calibration. This plate is rotated so that the image traces out a circle of known diameter, and this is made to correspond to a calibration trace on the C.R.T. by adjusting the gain of signal amplifiers. In a modification, Fig. 7, the lens is scanned in polar co-ordinates by a unit 70 which rotates in steps about the optical axis 77, the mirror 74 being pivoted by a cam and follower at every step. The output of the diode is in cartesian co-ordinates and an analogue computer 80 computes the wavefront of the lens for display on the C.R.T. 16. In systems working with visible light the Wallmark diode may be replaced by a photo-multiplier behind an aperture. The image formed by the lens under test is oscillated across the aperture by a nutating mirror or prism and the photo-multiplier output fed to two phase-sensitive rectifiers to give the x and y deflections. An image dissector tube may be used in place of the photo-multiplier and aperture. In this case, the phase sensitive rectifier outputs may be fed back to the deflection coils of the image dissector to maintain the electron image therein fixed, the D. C. deflection current indicating the x and y co-ordinates of the image formed by lens 13.
Patent GB-666228-A (GB)
Title: Improvements in circular looms and method of operating same
IPC: D03D37/00
Filed: 1948-08-25
Abstract: 666,228. Circular looms; tubular fabric. UNITED STATES RUBBER CO. Aug. 25, 1948 [Oct. 11, 1947], No. 22363. Classes 142 (ii), 142(iii) and 142(iv) A circular loom for weaving hosepipe employs a single shuttle which occupies twothirds of the circumference and carries two weft packages; shedding is initiated by a notched wheel rolling on the warp and is completed by the shuttle. Shedding mechanism. Figs. 2 and 21.-A wheel 67 having notches in its periphery rolls on the warp threads between two combs 40, 42 and diverges them sufficiently for the nose 53 of the shuttle to enter; the number of notches is not an aliquot part of the number of warp threads, hence a different shed is formed on successive revolutions of the wheel round the loom. The wheel is mounted on a rotating sleeve 86 and is balanced by a weight 94. Shuttle, Figs. 2, 5 and 21.- The shuttle comprises a frusto-conical shell 55 and a skeleton of tubes 61, 62, 65 which converge to a pointed nose 53 to guide the partly-shedded warp threads to the interior and exterior of the shuttle. Three rubber-tyred wheels 79 roll on a track 18, the shuttle being driven by a pusher wheel 90 carried by the rotating sleeve 86. Two weft packages 60, Fig. 5, wound on paper tubes, are mounted on opposite sides of the axis of the shuttle on splined pegs 101; one end of each peg is carried by a bearing 102 and the other end enters a disc 110 disposed between two brake discs 111; a spring (not shown) acting on a lever 121 carried by a threaded plug 119 presses on the discs and is opposed by the tension of the weft as it passes round the other end 122 of the lever, so that the braking effect depends on the tension. Beating-up, Figs. 2 and 5.-The wefts F from the two weft packages pass together through a slot 132 in the shuttle and are laid in the apex of the shed, the warp threads being supported at this place by a mandrel 25 and a conical ring 24. Tensioning warp, Figs. 2 and 20.-Each warp thread passes round posts 48, 49 and between a blade 50 and a spring finger 46; it then makes a number of turns round the post 49 and runs over the end of the finger 46. Increase in tension deflects the finger 46 to release the pinching action between the finger and the blade 50. Treating warp, Fig. 2.-Wax may be applied to the warp threads near the fell from a trough 136. Fabric.-The two wefts (laid in the same shed) may be cotton and nylon respec-- tively; the weave may be plain or twill.
Patent GB-588844-A (GB)
Title: Improvements in spectrographic light sources
IPC: H05B41/34
Filed: 1944-11-13
Abstract: 588,844. Spark-gaps. MEEK, J. M., CRAGGS, J. D., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. Nov. 13, 1944, No. 22394. [Class 39 (i)] [Also in Group XXXV] The time of striking of a spark-gap S used as a spectrographic light source is controlled by an enclosed triggered spark-gap T working in an atmosphere of inert gas and a small proportion of a quenching gas, as described in Specifications 578,510 and 578,514. The prior use of thyratrons, ignitrons or rotating sparkgaps for this purpose is acknowledged. As shown in Fig. 2, the triggered gap may be placed across a condenser C2 charged through resistance R1 from storage condenser C1. When the gap T breaks down, the voltage of condenser C1 is placed across S which also breaks down. C1 may be charged by A.C., as shown, or by D.C. In another form the gap T, Fig. 4, is placed across the supply so that the condenser C1, which charges through resistor R2, discharges through gap T across gap S. The gap may be provided in known manner with an auxiliary low-voltage heavycurrent source of supply, from condenser C2, Fig. 5, which discharges in the form of an arc across the gap S only when this gap has been broken by gap T discharging condenser C1.
Patent GB-803166-A (GB)
Title: Arc welding
IPC: B23K9/23
Filed: 1955-08-04
Abstract: 803,166. Welding by fusion. IMPERIAL CHEMICAL INDUSTRIES, Ltd., THORLEY, T., and ROBINSON, R. July 27, 1956 [Aug. 4, 1955], No. 22440/55. Class 83 (4). A chill for cooling workpieces, e.g. of titanium, during arc-welding, consists of a thin ductile metal strip shaped to the contour of the joint being welded and a tube conveying cooling fluid secured to the strip. The strip is aluminium or copper. The chills used in gas-shielded arcwelding the joint between a curved member 1 and a plate 2 consist of strips 3 and 6 shaped to fit closely against the member 1 and plate 2, respectively, and having edges parallel to the joint. Brazed to the strips 3 and 6 are shrouds 4 and 7 which serve to prevent dispersal of the shielding gas, such as argon, from the vicinity of the joint. Water is passed through tubes 5 and 8 brazed in the angles between the shrouds and the strips. The chills may be finally fitted to the workpieces by hammer peening and in certain cases the strips 3 and 6 may be formed in the same dies as the workpieces. A perforated tube 9 supplying argon to the back of the joint is shaped to fit closely against the joint and is held by a strip of copper foil 10 secured by adhesive tape to the workpieces. In a modification the foil is placed adjacent the joint and the argon supply pipe is brazed to the foil, the argon passing through holes formed through the foil and pipe.