baber/WOPTO huggingface dataset:
Patent GB-662961-A (GB)
Title: Improvements in or relating to hydraulic apparatus
IPC: F15B21/00
Filed: 1949-03-08
Abstract: 662,961. Balancing-apparatus. GENERAL ELECTRIC CO., Ltd., and MEACOCK, J. H. March 8, 1950. [March 8, 1949] No. 6316/49. Class 78 (ii). In hydraulic apparatus for raising a load, e.g. aircraft in aircraft carriers, in whicb a platform is raised and lowered by a piston, or ram, and cylinder arrangement, the platform and load are at least partially balanced by compressed gas, such as air, operating with a subsidiary piston, or ram, and cylinder arrangement hydraulically connected with the first-mentioned piston, or ram, and cylinder arrangement, raising and lowering of the load being arranged to be effected or controlled by means which aid or oppose the balancing effect of the compressed gas. The load carrying platform 3, Fig. 1, is supported by a ram 2 movable in a cylinder 1 which is connected by a pipe 4 to subsidiary cylinders 5, 6. The cylinders 1, 5, 6 and pipe 4 contain water or other working liquid. Rams 7, 8 working in the cylinders 5, 6 are connected by a cross-head 9 on which are mounted rams 10, 11 working in cylinders 12, 13. These cylinders are connected by a pipe 14 to a series of compressed air bottles 15. Also mounted on the cross-head are opposed rams 16, 17 working in oil-filled cylinders. 18, 19 which are connected by a pipe 20 to an oil pump 21 of the variable displacement swashplate type capable of operating as a motor and driven by an electric motor 22. The air pressure and dimensions of the various parts are so chosen that the weight of the platform 3 and half the maximum possible load is approximately balanced. Each cylinder associated with the platform is connected to it by chains passed over sprockets and the sprockets are connected by shafting and bevel gears to ensure correct levelling of the platform. In practice the operating cylinders will move on fixed rams and more than one cylinder and ram, e.g. eight will be associated with each platform, and the cylinders will be connected to a pair of accumulators in each of which the oil cylinder is disposed between the balancing cylinders. In a modification, Fig. 3, the cylinder 1 is connected by a pipe 65 containing an oil pump motor 21 to the left hand end of a cylinder 67 containing a piston 68. The right hand end of the cylinder is connected to the air bottles 15. This arrangement may be modified by disposing the cylinder 67 vertically and in this case the piston 68 may be dispensed with and baffles provided to limit the agitation of the oil.
Patent GB-1030354-A (GB)
Title: An improved endless conveyor band and a method for the production thereof
Inventor: HARVEY PETER JAMES NICHOLAS
IPC: G03B27/14
Filed: 1964-02-14
Abstract: 1,030,354. Endless conveyer belts. JAMES DAWSON & SON Ltd. Feb. 8, 1965 [Feb. 14, 1964], No. 6331/64. Heading B8A. [Also in Division B5] An endless conveyer belt for use at high temperatures in a photo-printing machine, is formed from at least three plies 6, 7, 8, Fig. 4, of synthetic textile material bonded with silicone rubber, the outermost ply 8 being folded over the edges of the centre ply 7 to overlap the edges of the narrower inner ply 6. The material may be synthetic plastic cloth or glass cloth and the ply 6 or at least one inner layer may be weftless with the warp threads dsposed across the width of the belt. The belt may be initially made up by wrapping the plies on a former having a removable polyester film 5, Fig. 3 (not shown), to facilitate removal of the belt prior to the edge folding and curing operations. The curing may be carried out in stages, using first a press to carry out a step-by-step process between platens having their leading faces cooled to produce a temperature gradient. The synthetic material may require prior heat-treatment to ensure that no subsequent reduction in length takes place. Coating with a bonding agent may also be necessary.
Patent GB-671161-A (GB)
Title: Improvements in or relating to supports for shelving
IPC: A47B57/56
Filed: 1950-03-14
Abstract: 671,161. Shelf-supporting brackets. FELIX, A. March 14, 1950. No. 6380/50. Class 52 (v). A shelf - supporting bracket comprises a hollow upright 1 with a supporting arm 3 provided with a projection 4 forming a cam which wedges into the upright when the arm is in the horizontal supporting position. In this position a pin 7 of harder metal than the upright engages a wall 6 of the upright to prevent sliding and a locking nose 9 engages the front wall of the upright to hold the support in its working position even when it is not loaded.
Patent GB-143991-A (GB)
Title: Improvement in apparatus for extinguishing fire in, and preventing the sinking or effecting the salving of, ships
IPC: A62C3/10
Filed: 1919-03-14
Abstract: 143,991. Lee, H. R., and Cochran, K. R. March 14, 1919 Sinking, preventing.-In an apparatus for preventing the sinking of ships, a collapsed flexible container 1 is carried by slats 6, loosely mounted, on rails 7, where desired about the ship. Connected to the container is a flask 8, containing compressed carbon dioxide. The neck of the flask is closed by a disk 11 of copper or other soft metal. A barb 17 is arranged to perforate the disk 11 when the pivoted arm 14 carrying the barb is depressed. A lever 18, mounted on the same spindle 12 as the arm 14, carries at its end a ball float 19, so that, should the chamber in which the apparatus is mounted be flooded, the rising of the float depresses the barb and liberates the gas. The gas inflates the container, the laths 6 becoming bent as the container expands, and allowing the container to fall on the floor. As the containers become fully inflated, water is forced out of the compartment in case of flooding, and the ship thus prevented from sinking.
Patent GB-537330-A (GB)
Title: Containers for comminuted commodities provided with pouring devices
IPC: B65D5/76
Filed: 1940-04-10
Abstract: 537,330. Powder &c. containers. RAMSDEN, G. A., and RAMSDEN, G. J. R. April 10, 1940, No. 6465. Convention date, April 13, 1939. [Class 18] [Also in Group XVIII] A container for powdered, flaked or other comminuted commodities has its lid 1 provided at one end with a flap 2 which can be turned down into the container to leave a slit 4 and to constitute a baffle, a second baffle 5 being secured by flaps 6 to a wall 3 beneath aperture 4 to constitute a pocket. By inverting the container, restoring it to normal position and re-inverting, a pre-determined quantity is delivered.
Patent GB-1382995-A (GB)
Title: Winding
IPC: D01H1/36
Filed: 1971-03-10
Abstract: 1382995 Building motions JAMES MACKIE & SONS Ltd 25 Feb 1972 [10 March 1971] 6475/71 Heading D1D In a multihead flyer frame thread or tapes 5 are deposited from each rotating flyer 4 onto package supports 3 that are jointly vertically reciprocated by builder rail 1, the length of the reciprocated traverse being automatically progressively reduced during the building up of the packages and the rate of reduction of the traverse stroke being increased during the building period in which completed packages are doffed and fresh packages started. The rotation of heart-shaped cam 45 rooks traverse arm 42 about fulcrum 43 and hence, via link member 40, chains 38, 31, 24, 17, wheels 36, 34, 30; 26 and shafts 35, 28 and bar 20 reciprocates builder rail 1. At the end of each rock the traverse arm strikes trigger 73 or 74, thereby operating valve 71 or 72 to cause pneumatic cylinder 65 to rotate rocket wheel 62 via pawl 64. Wheel 62 is attached to lead screw 54 whose rotation causes link 40 to move towards the fulcrum 43 of traverse arm 42, thereby reducing the traverse of builder rail 1. The connection block constituted by 54, 55, 57 is supported by roller 76 on arcuate surface 77. When the block has moved far enough to the right to strike switch 80 a light warns the operator to turn valve 70 and to begin doffing. Valve 70 causes the pneumatic cylinder 65 to turn wheel 62 and hence screw 53 at four times the previous speed, so that the last few layers wound on supports awaiting doffing and the first few layers wound on newly inserted supports are tapered rapidly. When switch 95 is reached a further light warns the operator that doffing must be rapidly completed or the packages will foul the flyers. On completing the doffing the operator switches off valve 70 and manually resets lead screw 53 to bring nut 54 back to its full traverse position.
Patent GB-1464666-A (GB)
Title: Flash emitter for vehicles
IPC: B60Q11/00
Filed: 1975-02-17
Abstract: 1464666 Direction-indicator flashers SWFSPEZIALFABRIK FUER AUTOZUBEHOER GUSTAV RAU GmbH 17 Feb 1975 [25 May 1974] 6570/75 Heading G4Q [Also in Division H3] Relates to a direction-indicating flashing circuit which incorporates a relaxation oscillator utilizing transistor T1 and a switching circuit utilizing transistor T2, the flashing of lights connected to terminal 49a being effected by contact s of relay S and the frequency of flashing being determined by capacitor C2. According to the invention a filter capacitor C1 is connected as shown. An analogous circuit utilizing NPN transistors may be utilized. The purpose of the invention is to prevent "fluttering" caused by oscillation at the beginning of the pulsing and interval times.
Patent GB-1362265-A (GB)
Title: Electrical connectors
IPC: H01R13/50
Filed: 1971-03-12
Abstract: 1362265 Two-part couplings CANNON ELECTRIC (GREAT BRITAIN) Ltd 9 March 1972 [12 March 1971] 6650/71 Heading H2E In a two-part coupling the socket part 1 has a biscuit 4 which fits into the casing of the plug part 2 on mating, the parts being held together by latches each of which comprises a resilient T-shaped member 11 integral with the socket biscuit 4 via its shank and having a portion, on one of its arms which engages a portion on the plug casing. As shown the engaging portions have a complementary hook and shoulder 12 but in the embodiment of Fig. 1, they have complementary interrupted screw threads (34). To unlatch the parts the other arm of the T is depressed to swing the T and disengage the portions. A locking ring (35) may be slid over the latches. The contacts are held in bores of a supporting member 4, a collar 6 on each element seating against a shoulder 5 in each bore, there being resilient tines 7, 8 integral with the member 4 engaging the contacts to releasably retain their seating. A rubber grommet 3 and. end shell 9 complete the socket, and an 0-ring 10 seals between the coupling parts 1, 2.
Patent GB-686120-A (GB)
Title: Improvements in or relating to flux-cored solders
Inventor: CUMPSTON CHARLES GRAHAM
IPC: B23K35/14
Filed: 1950-03-16
Abstract: 686,120. Soldering. DU BOIS CO., Ltd. March 16, 1951 [March 16, 1950], No. 6654/50. Class 83 (iv). In a flux cored solder the bore is of non- circular cross-section having a plurality of longitudinally extending recesses radiating from its centre towards the outer surface of the solder, the width of at least one of the recesses increases over at least a part of the depth of the recess outwardly from the bore centre and the thickness of the solder tube wall is less over the ends of the recesses than it is at places between the recesses. In an embodiment, a cylindrical solder tube 1, Fig. 1, has a clover leaf shaped flux core 2 but two or more than three recesses 3 may be employed. In another embodiment a solder tube 31, Fig. 4, has a bore with four recesses 33 filled with flux, the sides 34 of which are convex and the tops 35 of which are concave. This construction may be modified by employ. ing a straight instead of a concave top. In a modification a solder stick has a flux core of Maltese Cross section with straight sides and ends to the arms while a further modification shows three recesses, the sides being straight and the ends concave. The external surface of the solder may be triangular, square, &c., or may take a section the same as that of the core or may be formed with flutes or grooves in the spaces between the recesses. The core may contain flux mixed with powdered solder so that flux total solder quantity is 1¢-3 per cent. Specifications 605,110 and 636,030 are referred to.
Patent GB-1426751-A (GB)
Title: Xerographic toner concentration measuring apparatus and method
IPC: G03G15/08
Filed: 1973-02-12
Abstract: 1426751 Developing; automatic control of concentration VAN DYK RESEARCH CORP 12 Feb 1973 [22 Feb 1972 (2)] 6752/73 Headings G2H and G3R [Also in Division G1] The concentration of toner in an electrophotographic developer is measured by directing a stream of said developer from an orifice 44 in a hopper 42a on to a deflecting plate 48a which causes the developer to impinge on one or two transparent collecting plates 45a and 45b. The density of toner on the collecting plate(s) is sensed (e.g. by a lamp 49a and photo-cell 50a) and the signal derived is compared with a reference value to produce a control signal for application to a toner supply device in the developing station of a xerographic copier. The measuring device is constructed so that the kinetic energy and degree of turbulence of the developer impinging on the collecting plate(s) is such as to produce a constant depth of toner on the plate(s) until the concentration of toner in the developer falls whereupon the depth of toner on the plate(s) is reduced and a control signal is produced. Developer is supplied from the developing chamber through a line 63 and returned thereto through a line 64. A by-pass may be provided to remove surplus developer from the hopper 42a and return it directly to the developing chamber. In a further embodiment Fig. 11 a valve 75 is provided to intermittently supply developer to the deflecting plate, the measurement of toner density in the collecting plates being confined to periods when the developer supply is cut off by the valve. The valve comprises a continuously rotating vane 77 which permits the entry of developer into the valve body through tube 63 during a first part of its rotation and permits the developer to pass from the valve body through apertures 44a and on to the deflector plate 48b during a record part of its rotation. A switch 81 operated periodically by a cam 82 connected to the shaft 78 of the vane provides the signal to actuate the measurement of the density of toner on the collecting plates 45a and 45b. The photo-electric measurement of the toner layer may be effected by a photo-sensitive element 50, Fig. 4 which receives light from lamp 49 via collecting plate 45. A second photoelement 52 receives some light from the lamp 49 via a beam-splitter 51 and the outputs of the two photoelements are passed to a comparator 53 which provides an output signal proportional to the difference between the signals on lines 54 and 55. The comparator also compares the derived signal, indicative of toner concentration with a reference signal indicative of a desired toner concentration. A control signal is thus provided on line 56 to dispense toner to the developer tank at the proper rate.
Patent GB-125739-A (GB)
Title: A New or Improved Means for Mounting Wheels on Axles or Inner Hubs.
Filed: 1918-04-22
Abstract: 125,739. Rudge - Whitworth, Ltd., Pugh, J. V., and Blair, W. April 22. 1918. Securing wheels on shafts.-In centering and securing a detachable vehicle or other wheel or twin wheels c, e<1>, Fig. 1, on an inner hub or shaft i, the conical ends h, h<1> of web plates f, f<1> and reinforcing plates g, g<1> are pressed by axial bolts j upon a single double-coned split ring k which is thus caused to grip the hub. As shown in Fig. 2, additional strengthening-plates l, l<1> may be used, two separated split rings k', k<2> being provided and caused to grip the hub.
Patent GB-1413272-A (GB)
Title: Wound film capacitors
IPC: H01G4/32
Filed: 1974-02-14
Abstract: 1413272 Capacitors ILLINOIS TOOL WORKS Inc 14 Feb 1974 [21 Feb 1973] 6791/74 Heading H1M The invention described in Specification 1,340,768 is modified in that at the centre of the capacitor roll between lead wires 22 and 24, in addition to electrodes 16, 18 and dielectric strips 12, 14 there is an additional relatively short strip 20 of heat-shrinkable dielectric material and it is this strip which, on heat-treatment of the capacitor roll, shrinks to hold the lead wires in place. Strips 12, 14 may accordingly be selected for other than their heat-shrinking properties. Strip 20 may be thicker than strips 12, 14 and is preferably long enough, as shown, to wrap round about three-quarters of the periphery of each wire. Strip 20 may be polypropylene, strips 12, 14 polycarbonate, polyester, polystyrene or polypropylene. The electrodes may be tin or aluminium foil or coatings.
Patent GB-398187-A (GB)
Title: Process for the utilisation of nitrosyl chloride
IPC: C01B7/00
Filed: 1932-03-07
Abstract: Nitrosyl chloride and gases containing it are mixed with air or oxygen at ordinary temperatures, the progress of the resulting reaction being assisted if necessary by lowering the temperature and/or by the employment of excess of air or oxygen and in a second stage the nitrogen peroxide is separated from the gas mixture so obtained by liquefaction of the nitrogen peroxide, by dissolving out the nitrogen peroxide by means of nitric acid and/or by dissolving out the nitrogen peroxide by means of water. Gaseous chlorine free from nitrogen oxides in also obtained.  The second stage may be carried out by conducting the gaseous mixture obtained first into a cooled vessel containing concentrated nitric acid and then through further vessels supplied with nitric acid of decreasing concentration and finally with water.  Pure gaseous chlorine is withdrawn and highly concentrated nitric acid flows away at the point of introduction of the gas.  Alternatively, the nitrogen peroxide may be first separated by liquefaction and the vapours still evolved due to the vapour pressure of the liquefied gas may be dissolved in nitric acid.  Examples are given. Specification 329,200, [Class 1 (ii), Inorganic compounds, other than &c.], is referred to.
Patent GB-693569-A (GB)
Title: Improvements relating to gully boxes
IPC: E03F5/04
Filed: 1950-03-20
Abstract: 693,569. Gully traps. SPENCER, A. June 7, 1951 [March 20, 1950], No. 6838/50. Class 33 A trap fitting for gully boxes comprises a plate 4 into which opens a short pipe 5 for fitting into the gully box outlet pipe 3, and a cover 8 having ears which engage under lugs 7, a top edge 10 which rests on the top edge of the plate, and a lug 11 by which it may be lifted off the plate.
Patent GB-1504872-A (GB)
Title: Linear bearing for parallel tracking arm
IPC: F16C33/10
Filed: 1975-02-14
Abstract: 1504872 Magnetic bearings STRATHEARN AUDIO Ltd 14 Feb 1975 [14 Feb 1974] 6849/74 Heading F2A A linear bearing, e.g. for a gramophone pickup arm, comprises a permanent magnet slide 1 having a V-shaped channel 2 providing two bearing faces and a slider 3 of magnetic material having sides 4 and 5 providing further bearing faces which co-operate with the channel 2, the slide 1 being magnetized as shown to retain a coating of magnetic lubricating fluid 8 over the surfaces of the channel 2. In other embodiments, the slider is a permanent magnet and the slide is of magnetic or non-magnetic material (Figs. 1b and 3b, not shown); the slide is magnetized transversely of its length (Fig. 2c, not shown), or is magnetized such that a pole appears on a surface not concerned with the sliding action (Fig. 3d, not shown); or the channel is of U-section (Figs. 2d, and 2b, not shown). Both the slider and the slide may consist of or contain permanent magnets, e.g. in the form of strips exhibiting different magnetic polarities.
Patent GB-661578-A (GB)
Title: Improvements in or relating to steering gear
IPC: B62D3/06
Filed: 1949-03-14
Abstract: 661,578. Screw-and-nut gearing. LIONE, D. E. March 14, 1950 [March 14, 1949], No. 6924/49. Class 80 (iii). The. nut 1 of a screw-and-nut steering gear is provided with a centrally bored bush 3 for co-operation with a rocker arm (not shown). The bush 3 has threaded or other interlocking engagement with the nut 1 and after insertion is held tight by shrinking the nut by suitable heating and cooling. In addition, the edges 6 of the aperture for the boss may be crimped over. The boss may be threaded into the nut by means of a tool comprising a handle 7, spigot 8 and locking nut 11 provided with projections 12 engaging grooves on the bush 3. After insertion of the bush, the handle 7 may be turned to unscrew the nut 11.
Patent GB-1102581-A (GB)
Title: Improvements in or relating to the control of hydro-electric generators
Inventor: COX HENRY
IPC: H02P9/00
Filed: 1964-02-20
Abstract: 1,102,581. Automatic control systems. SERCK CONTROLS Ltd. May 19, 1965 [Feb. 20, 1964], No.7077/64. Heading G3R. [Also in Division F1] The power output of a hydro-electric generator 12 driven by a turbine 11 is measured by a transducer 13 providing an analogue signal which is converted to digital form in an analogue/digital converter 14; the digital signal from converter 14 is applied to a comparator 16 together with a digital demand signal telemetered from a remote location. The error signal from the comparator 16 is applied to control a speeder motor 21 which regulates the turbine by altering the position of the fulcrum 19 of the arm associated with the governor 20 and with the servomechanism 18 for guide vanes 17 controlling the flow-rate of water through the turbine 11, whereby the generator output is maintained at the demanded value. The speeder motor is arranged to operate for periods separated by intervals of time, the magnitude of the periods of operation being dependent upon the magnitude of the error signal which appears on four lines 1, 2, 3, 4 at the output of the comparator 16, the line 1 giving an indication of the sign of the error, and an appropriate one of the lines 2, 3 or 4 being selectively energized according to the magnitude of the load change required. To avoid overshoot, the system may include differential and/or integral feedback signals derived from a fulcrum position transducer 25 or a guide vane position transducer 23.
Patent GB-202341-A (GB)
Title: Improvements in stair carpet holders
IPC: A47G27/06
Filed: 1922-03-10
Abstract: 202,341. Jacobson, M. N. March 10, 1922. Hooks fixed to walls and flat surfaces.-A staircarpet fastener, which, according to the Provisional Specification, may be used as a hat-hook, comprises an arm g pivoted at h to a bracket a and adapted to be held in the service position by a catch j pivoted to the bracket at k.