baber/WOPTO huggingface dataset:
Patent GB-1033333-A (GB)
Title: Control of variable displacement pumps
IPC: F01B3/10
Filed: 1964-02-25
Abstract: 1,033,333. Fluid pressure servomotor systems. BENDIX CORPORATION. Feb 25, 1964 [Feb 25, 1963], No. 7836/64. Heading G3P. The swash plate of a pump is tilted against a a spring 12 by either or both pistons 16 and 22 under the control of valves 48 and 58 respectively. The valve 48 is subjected to pump discharge pressure, supplied to passages 34, 40, in opposition to pump inlet pressure in chamber 50 and the loading of a spring 88. The valve 48 has axial passages 96, 98 which lead to grooves 100, 102 on either side of a hand 104, so that a passage 106 is connected to discharge or inlet pressure with movement of the valve. The passage 106 is connected to a chamber 24, formed by the pistons 16, 22, through grooves 108, 120 and parts 122. The valve 58 is subjected to pump discharge pressure supplied through passages 34, 42, to a chamber 68. The valve 58 is loaded by pump inlet pressure in chamber 54, spring loading 90 and a spring 64. The value 58 controls the supply and exhaust of fluid to a chamber 30 to actuate piston 22 and the spring 64 thus varies its load due to the movement of the piston to provide feedback allowing the valve to reclose with movement of the piston 22. The swash plate may actuate two rotating cylinder blades on opposite sides of the piston.
Patent GB-411622-A (GB)
Title: Improvements in joints
IPC: F16F1/38
Filed: 1933-03-15
Abstract: 411,622. Flexible - - unjointed hinges. MIDDLETON, B. M., Dene Croft, Allendale, Northumberland. March 15, 1933, No. 7881. [Class 65 (ii).] A joint of the kind in which parts between which movement is to be permitted are held out of contact by members of rubber or like resilient material deformed by the movement comprises two main relatively movable members, one or more intermediate members between and movable relatively to the main members, and rubber or like elements disposed between each main member and the adjacent intermediate member and between each pair of adjacent intermediate members to allow relative movement of the parts, means being provided to limit the relative angular movement between the members enclosing at least one, and preferably all but one, of the rubber elements. The members are preferably in the form of concentric cylinders, and the rubber elements have their radial thickness reduced by compression between their enclosing elements so that it will adhere to these members. This form of joint allows of a large angle of movement and prevents overstressing of the rubber, also equalizing the strain between the several rubber elements. The Figure shows a joint comprising an inner main member A, an outer main member B, and a single intermediate member C, spaced from member B by a rubber sleeve E and from member A by similar sleeve. Relative movement between the members A, C is limited by laptes N having lugs N<1>, N2 which engage in circumferential slots or recesses in the members A, C respectively. An alternative means for limiting relative motion between two cylindrical members comprises a tongue or tongues bent inwards or outwards from one member to engage a slot or slots in the other member in a manner similar to the lugs N<1>, N2. In a further modification, according to the Provisional Specification, one of the members has a flange at each end provided with inturned teeth to engage corresponding suitably spaced teeth on the other member. In cases where the load on the oscillating member is variable, the joint is preferably arranged so that the rubber has its neutral position at the position of maximum load. The applications to door hinges, spring shackles and the knife shafts of cotton gins are mentioned.
Patent GB-1381395-A (GB)
Title: Microwave integrated delay line circuit
IPC: H01P3/08
Filed: 1972-02-21
Abstract: 1381395 Impedance matching; delay lines LIGNES TELEGRAPHIQUES ET TELE. PHONIQUES 21 Feb 1972 [5 March 1971] 7909/72 Heading H1W [Also in Division H3] A microwave integrated circuit delay line is characterized in that the corundum substrate 1, metal plated on its rear face, which supports acoustic bulk or surface waves between input and output cadmium sulphide or zinc oxide transducers 5, 6 also acts as a support for input and output strip-line patterns 8, 13, co-operating with the metal plating and connecting, via impedance matching section 9, 10; 16, 15 and flexible connections 11, 12, input and output coaxial connectors 7, 14 to the transducers. In Fig. 2, conical holes 20 reduce direct interstrip line coupling. In Fig. 3, respective lines are on opposed major surfaces of the substrate, the free part of each major surface having metal plate 21. In Fig. 4, a multiplicity of output strip lines connected via flexible connections to stepped output transducer structure 32, 33, 34 provide for multiple delay outputs. The core of the cylindrical portion 40, and the rear of the flat portion 30 of the substrate are metal plated. When two strip lines are located on the same face of the substrate, they may be shielded from each other by mechanical obstacles. The substrate may have the form of a parallelepiped.
Patent GB-125070-A (GB)
Title: Reversible Feeding Mechanism for Sewing Machines.
Inventor: HEMLEB MARTIN
IPC: D05B73/12
Filed: 1919-03-29
Abstract: 125,070. Hemleb, M. March 30, 1918, [Convention date]. Sewing-machines; jeed by dogs. - Reversible feeding mechanism is constructed so that, for any length of stitch, the work-advancing movement of the feeding element in one direction begins at a fixed point, close to the needle, and its reverse feeding movement ends at the same fixed point. The feed-dog 30 is carried by a feed-bar 29 pivotally supported on one arm of a rock-shaft 27 with 'a second arm 26 pivotally connected to a connecting-rod 24 actuated by an eccentric 22 on the main-shaft. A movable fulcrum 38 for the connecting-rod is provided on a link 37 pivotally-eonnected to one arm 40 of a lever 41 mounted on the bracket arm of the machine. The rising-and-falling movements of the feed-bar are derived from a cam 32 on the looper-shaft. In normal working, the lever 41 is adjusted so that, when the connecting-rod 24 is in its extreme left-hand position, the centres 38<1>, 42<1>, 39<1> are in line, and in reverse working, the lever is adjusted so that, when the connecting- rod is in its extreme right-hand position, these centres are again in line. Variations, within limits, in these adjustments determine the length of stitch, without materially varying the initial or terminal position of the feed-dogs.
Patent GB-1366615-A (GB)
Title: Method for making a hollow fibre separatory element
IPC: B01D63/02
Filed: 1971-02-25
Abstract: 1366615 Hollow fibre membranes DOW CHEMICAL CO 21 Feb 1972 [25 Feb 1971] 7930/72 Heading B1X A process for the manufacture of a permselective membrane assembly from one or more continuously hollow permselective fibres comprises winding at least one hollow fibre about a pair of substantially parallel spaced apart support members thereby to form a moving belt, winding the belt about a core member to form a convolute bundle, applying a band of solidifiable resin to one or more transverese sections of the bundle, solidifying the band(s) of resin and cutting at least one of the resin band(s) thereby to form a tube sheet face portion having open fibre ends terminating therein. As shown, two guide threads (or wires or tapes) 13 are provided and are wound on to spool 14. A plurality of hollow fibres 17 from packages 15 or rotary frame 10 is wound around the guide threads. A band of resin 21 is applied adjacent to the take-up spool.
Patent GB-451218-A (GB)
Title: Improvements in or relating to ventilators
IPC: F24F13/062
Filed: 1936-03-17
Abstract: 451,218. Ventilators. MARSHALL, J., 11, Cogan Street, Pollokshaws, Glasgow. March 17, 1936, No. 7958. [Class 137] Air from a duct 2 passes through an opening 1 in which is fixed an outer flared member 3 having attached thereto a spider 8 carrying a boss 9 on which is mounted by brackets 14 an annular intermediate flared member 4, a spindle 18 passing through the boss and supporting a lower disc 5. Grooves 11 formed in the spindle engage with spring pressed projections 12 in the boss to retain the members of the ventilator in one of three positions. In the fully open position as shown, air passes through the spaces 6 and 7. In the partially closed position, the disc 5 is pressed up to engage with the intermediate flared member 4 to close the lower air passage 7. In the fully closed position, the members 4 and 5 are pressed up to close the upper air passage 6, the three members being nested together. Packing material may be provided between the members.
Patent GB-759791-A (GB)
Title: Improvements in and relating to animal feeding troughs
IPC: A01K5/02
Filed: 1954-03-18
Abstract: 759,791. Animal feeding troughs. JOPSON, F. J. March 16, 1955 [March 18, 1954], No. 7969/54. Class 5 (2) In an animal feeding trough of the kind including a hopper 1 which delivers foodstuff to a feed tray 2 which is closed by an animal-actuated hinged lid 5, a dashpot device 10 is provided to control the closing movement of the lid and eliminate noise. As shown, the hopper 1 and feed tray 2 are pivotally mounted on a supporting frame 3 and the dashpot device comprises a hydraulic cylinder connected to the lid and a piston connected to the frame 3 or alternatively to the hopper 1. The piston comprises an apertured member 15 fixed to a rod 14 and a member 16 slidably mounted on the rod 14 and held thereon by lock-nuts 17, 18. When the lid is raised the two members 15, 16 will be separated, allowing oil to pass through apertures 19 in the member 15. When the lid is closed the member 16 will cover the apertures 19 so that oil will flow between the member 15 and the cylinder walls thus slowing down the movement of the lid. The lid 5 is provided with a cam 5a which rocks the hopper as the lid is raised and lowered. This rocking movement is used to actuate agitators 31 mounted inside the hopper and on a shaft 28 provided on. the outside of the hopper with a pinion 26 which cooperates with a rack 24 pivotally mounted on the frame 3. Specifications 757,500 and 759,367 are referred to.
Patent GB-234944-A (GB)
Title: Improvements in and relating to intermittent feed mechanism for kinematograph apparatus
IPC: G03B1/18
Filed: 1924-03-29
Abstract: 234,944. Cinechrome Instruments. Ltd., and Hillman, A. G. March 29, 1924. Kinematograph apparatus.-Intermittent-feed mechanism comprises a roller reciprocating in a. straight line parallel to the path of the film through the gate. As shown in Fig. 2 (Prov.) the roller 1 is carried bv a bracket 2 on a slide 3 which is reciprocated vertically by a cam 5 acting through a roller 8 and against the action of a spring 9. One continuous-feed sprocket serves to feed the film to the gate and to receive the film from the roller 1. As shown in Fig. 1 (Comp.) the roller 14 is carried by a slide having a roller 18 engaging a surrounding cam 17 so as to be reciprocated thereby, and a masking roller 18a carried by a plate 23 is movable vertically by a pinion 21 engaging a rack 22 on the plate 23..
Patent GB-877461-A (GB)
Title: Improvements relating to water-soluble azo-azomethine chromium-containing dyestuffs
IPC: C09B45/16
Filed: 1958-03-13
Abstract: The invention comprises dyes of formula:-  [D1-Cr-D2-]-X where D1 is a dicyclically co-ordinated o, o1-dihydroxyazo dye, D2 is a dicyclically coordinated o, o1-dihydroxyazomethine dye which may contain arylazo groups and X is COOH or SO3H.  The dyes, or their salts, are made by conventional methods by treating, simultaneously or consecutively, appropriate hydroxy- or alkoxyazo and azomethine dyes with chromium yielding agents. They may also be made by treating 1, 1-complexes of azo- or azomethine-dyes with appropriate dyes to yield the required 1, 2-complex.  Preferably 1, 1-complexes of azo-dyes are used.  The azomethine dyes may contain substituents, e.g. halogeno, alkyl, alkoxy, nitro, acyl, acylamino, alkyl- or aryl-sulphonyl, sulphamide, which may be N-substituted, carboxy, carboxylic acid ester and amide, sulphonic acid ester and sulphonic acid groups. The azo dyes may be mono-, dis- or poly-azo.  Preferred are mono- and dis-azo dyes.  Illustrative of many specified diazo components from which the azo dyes used are derived are 2-aminophenol and its 4-chloro-, 6-nitro-, 6-acetylamino, 4-cyano-, 4-methoxy-, 6-sulpho-, 5-benzylsulphonyl, 4-sulphonamido and 5-sulphon- N- b -hydroxyethylamido derivatives, 2-amino- 1-methoxybenzene, 1-amino- 2-methoxynaphthalene- 6-sulphonic acid and 3-amino- 4-hydroxy-1, 11-azobenene-31-sulphonic acid. Representative of indicated coupling components are phenols, naphthols, 5-pyrazoles, hydroxy-quinolines, barbituric acids and b -ketocarboxylic acid derivatives such as acyl acetic acid arylamides.  Azo components which couple twice may be used for the production of disazo dyes, e.g. 3-aminophenol, 3-hydroxydiphenylamine 2, 5, 7-aminonaphthol sulphonic acid and 1, 6-dihydroxynaphthalene-3-sulphonic acid.  Typical of reagents used in the production of azo-methine dyes are 2-hydroxybenzaldehyde and its 3, 6-dimethyl-, 5-bromo-, 4-nitro and -methoxy and 5-sulpho-derivatives, 2, 4-dihydroxybenzaldehyde, 4-hydroxy- 3-formylbenzoic acid, 4-hydroxy- 3-formyl-diphenyl, 1-hydroxy-2-naphthaldehyde, 2, 4-dihydroxy-naphthaldehyde and 5-[benztriazolyl-(2)]-2-hydroxybenzaldehyde.  The aldehydes are condensed with #s-hydroxyamines and their alkyl ethers which may both be of the benzene, naphthalene or higher condensed aromatic series or heterocyclic.  Preferably azomethines derived from hydroxynaphthaldehydes or "Erio-chrome" (Registered Trade Mark) black azo dyes are used.  Further preferred dyes are obtained from azo dyes combined with azomethine dyes which contain a single arylazo substituent.  The dyes are used advantageously as their alkali metal or ammonium salts.  They are used for dyeing wool, silk, superpoly-amide and -urethanes and leather in yellow, orange, red, brown, green and black shades from a weakly acid to neutral bath. The dyes may also be used in printing processes. Examples are provided of the preparation of the dyes and their use as colouring agents.
Patent GB-1212643-A (GB)
Title: Improvements in railway vehicle wheel brake riggings
Inventor: SANDER NILS BOERJE LENNART
IPC: B61H15/00
Filed: 1969-02-14
Abstract: 1,212,643. Railway brake riggings. SVENSKA AB. BROMSREGULATOR. 14 Feb., 1969, No. 8051/69. Heading F2E. In a brake rigging for a railway vehicle of the kind comprising a " live " brake lever 5 pivotally connected at one end 4 to a piston-rod 3 of the pneumatic cylinder-piston unit 2, a " dead " brake lever 7 is pivotally connected at one end to a part of the vehicle frame and a tension force transmitting rod 6 is connected to the other ends of the " live " and " dead " brake levers, brake shoes 10, 11 being pivotally mounted between the " live " and " dead " brake levers and the vehicle wheel rim 12 and an automatic slack adjuster is mounted between one of the brake shoes (10) and the respective adjacent brake lever 5. In operation, a strong compression spring provided inside the tubes 26 and 27 (Fig. 2) moves the levers 25 and 5 apart to pull a screw-threaded rod 14 of the automatic adjuster outwardly from the member 9. A clutch a-a in the automatic adjuster is engaged and prevents a nut 15 from being rotated on the rod 14. When the brakes are applied, the piston-rod 3 is advanced towards the pivoted connection at 21 and a sleeve 19 and the member 9 are moved towards each other. A cup spring 22 engages a roller bearing 18 at the moment the brake block, fitted to the brake shoe 10, engages the wheel rim. The clutch a-a will now open and the clutch b-b will be engaged. Any further increase in brakeapplying force results in the member 9 and the rod 14 being moved together towards the wheel rim and the spring 22 will be deflected accordingly. Following the brake release operation, the member 9 and the rod 14 will be initially moved towards the right and the clutch b-b will open and the clutch a-a will be engaged as soon as the brake-applying force transmitted becomes equivalent to the force transmitted by the strong compression spring inside the tubes 26 and 27, and the brake rigging parts will return to their initial positions. If slack adjustment is required during brake operation, the spring 22 will contact the bearing 18 and the clutch a-a will open to allow the nut 15 to freely rotate on the screw-threads of the rod 14 until the brake block on the brake shoe 10 engages the wheel rim. During rotation of the nut 15, the spring 22 will expand and after the brake block has contacted the wheel rim the spring 22 may be compressed again during the increase of brake applying force at the last stage of the brake application. An alternative embodiment is disclosed in Figs. 3 and 4 (not shown), wherein the strong compression spring and its surrounding tubes 26 and 27 are omitted, the force tending to move the levers 25 and 5 apart being derived from a cushion of compressed air contained in a chamber at the right-hand end of the member 9 in a manner similar to that disclosed in Specification 1,155,808.
Patent GB-347822-A (GB)
Title: Improvements in automatic reversing table, collar blocking machines
IPC: F16P3/02
Filed: 1930-03-13
Abstract: 347,822. Machinery guards. WARDROP, T., Pritchard Street, Chorlton-on- Medlock, Manchester. March 13, 1930, No. 8098. [Class 80 (iv).] In a collarblocking machine wherein the articles are supported on a board d which is adjustably carried by a table c reciprocated along stationary guides b, Fig. 2, by an automatically reversed friction drum q, a finger guard g is provided in front of the ironing roller h beneath which the collars pass. The guard, which may be in the form of a flattened sheet metal tube, is pivoted to fixed brackets i, and rods j<1>, Fig. 2, j<2>, Fig. 3, are pivoted to the opposite ends of the front edge of the guard. When the guard is tripped during the passage of the table from right to left, the reversing-mechanism is instantly operated to reverse the direction of movement of the table which then travels to the extreme right-hand end of its stroke where it moves off the friction drum and remains stationary until it is moved back by hand. The rod j<1> is pivoted at its lower end to a plate a which is set on edge and is carried by pins b<1>, b<2> which project from the guide rails b into inclined slots a<1>, a<2> in the plate. The top edge of the plate normally lies out of the path of the tappets el, e<2> which are carried by the table and which coact with a striker arm to operate the reversing-gear for the friction drum. The rod j<2> is pivoted to a latch k which normally engages a pin o on a rod p to hold down a lever m against a spring l. The lever m is connected with the reversing-gear. When the guard is raised the latch k swings counterclockwise to free the pin o so that the lever m is swung by the spring l to operate the reversing-gear to move the table from left to right, the table continuing to move until it clears the friction drum. Movement of the guard also raises the plate a through the link j<1> so that the top of the plate is in the path of the tappets e<1>, e<2> thereby raising and maintaining them raised so that they clear the arm of the reversing-gear instead of contacting therewith as they normally do. The guard is reset by depressing the lever m and the tappets are reset by rotating the shaft f on which they are mounted by means of a handle r, Fig. 2.
Patent GB-918937-A (GB)
Title: Fluid controlled tension winding and unwinding device
Inventor: THOMSON ARTHUR JAMES
IPC: F16H61/02
Filed: 1961-03-07
Abstract: 918,937. Variable-speed gear. HOBBS MANUFACTURING CO. March 7, 1961, No. 8278/61. Class 80 (2). [Also in Groups IX, XVI and XXXIV] A variable-speed gear for use with wire, paper &c. winding and unwinding apparatus comprises a driving shaft 17 fast on which is a carrier supporting a bevel planet pinion 20 meshing a reaction side gear 23 driving through a train 22, 27 to a pump 26 which forces liquid through an adjustable orifice 69, and also meshing a side gear 25 driving through a train 24, 31 to a driven shaft 29. A simple reverse gear 39, 45, 44; 36, 46 between the driven shaft 29 and a layshaft 42 is manually controlled by means of a knob 52 and links &c. sliding a positive clutch collar 32 on the layshaft to rotate the latter always in the same direction, independently of reversal of the direction of rotation of the driving shaft 17 for winding and unwinding operations. The layshaft 42 drives through a train 46, 63 to the side gear 62 of a second differential having its planet pinion 61 driven by an electric motor 59, the second side gear 64 of this differential driving an auxiliary pump 67 supplying liquid through a pipe 73 to a cylinder 68 containing a free floating piston 70. The pump 26 supplies liquid through a pipe 28 to the opposite side of the free floating piston 70 from a sump 14, whence it returns through the orifice 69, partially closed by the piston. When the driving shaft 17 is rotated in one direction for winding, decreasing speed of the driven shaft 29 causes the pump 26 to supply more liquid to the cylinder 68 and thereby tend to slide the piston 70 rightwards of Fig. 2, this action being opposed by the change in speed of rotation of the auxiliary pump 67 which works harder and supplies a higher pressure to the opposite side of the piston, so that the latter remains in the same position and maintains a constant size of the orifice 69, whereby the material is wound at a constant tension. When the driving shaft 17 is rotated in the opposite direction for unwinding, and following change-over of the reverse gear 32 &c., increasing speed of the driven shaft 29 causes the auxiliary pump 67 to slow down, thus allowing the free floating piston 70 to move to the right of Fig. 2 and increase the size of the orifice 69 through which the pump 26 is forcing liquid, reducing the torque applied to the driven shaft. The tension in the wound material can be adjusted by a needle valve 75 through which liquid supplied from the auxiliary pump 67 returns to the sump 14. The electric motor 59 may have its speed of rotation controlled by the operations of the main process machine containing the gear, to vary the speed of rotation of the driven shaft 29. The sump 14 is formed in the upper part of a casing 10 containing the gearing.