baber/WOPTO huggingface dataset:
Patent GB-639696-A (GB)
Title: Improvements in and relating to clamping and like devices
IPC: B25B5/06
Filed: 1948-02-11
Abstract: 639,696. Clamps ; vices. CAUDLE, H. J. Feb. 11, 1948, No. 3985. [Class 61 (ii)] A clamping device comprises a block a bored to form cylinders d, pistons e, with rods g projecting from the block, being arranged in the cylinders. The latter communicate by ports h and are filled with liquid. When one piston rod contacts with a projecting part of a workpiece p, liquid is transferred to the other cylinders so that the other piston rods are projected to engage more remote parts of the workpiece. The pistons may be urged inwardly by springs. A block may be fitted removably to one or both jaws of a vice or may be incorporated in the jaw or jaws, or a block may be mounted slidably on a baseplate with a pressure screw for sliding it. The base-plate may be secured to the drilling bed or other part of a machine, or on a vertical wall so that it can be used as a hold down. Extension pieces may be provided for the piston rods or soft end caps of lead or fibre.
Patent GB-267676-A (GB)
Title: Improvements in or relating to spool boxes, and holders for kinematograph films
IPC: G03B21/32
Filed: 1926-02-12
Abstract: 267,676. Bland, H. B. Feb. 12, 1926. Kinematograph apparatus. - A pivoted holder for a spool box is provided in a kinematograph projector capable of being turned about the centre of the take-up spool. As shown, the holder consists of a casting 1 pivoted on a spigot 2 projecting from the frame 3, and carries a D-shaped spool box 6 containing spools 4. Spindles 7, 8 receive the spools, and nuts 14, 16 thereon retain the spool box in place. The spindle 8 is driven by a belt and pulley 11, and the spindle 7 may be driven for rewinding through gearing 37 - - 40 by a handle on a shaft 41. The holder carries a screwed stud 19 projecting through an arcuate slot 20, preferably such that the holder may move though 90‹, and is held in any desired position by a nut 21 on the stud. The spool box has film slots 22, 23 and rollers 43, 44; shutters for the slots 24, 25 are carried by a slidable bar 26 operable by a handle 31 so as to close against bars 24', 25<1>. The spool box may be closed when in transit by a removable cover fitting over the whole of one of its sides and held by a nut.
Patent GB-942107-A (GB)
Title: Loading attachment for machine tools, particularly gearwheel shaving machines
IPC: B23Q1/68
Filed: 1962-02-02
Abstract: 942,107. Gear-finishing. F. HURTH, and H. HURTH. Feb. 2, 1962 [Feb. 10, 1961], No. 4051/62. Heading B3K. A method of bringing a gear into mesh with a shaving tool, &c., comprises relatively rotating the gear and tool slowly until they mesh, and then stopping the rotation by a sensing means. The chamfered tool 12 is urged axially by a spring 17 or hydraulic means. The tool spindle 13 is rotated by a motor 20 and can be prevented from moving axially by an eccentric 22 rotated by a lever 21 or by an automatic hydraulic device. When the tool is advanced towards a gear and engages it incorrectly, the tool is moved axially causing the motor to be braked so that the tool is held fast while the work is rotated slowly. As soon as correct meshing occurs, the tool moves forward into machining position and the brake is released. Alternatively, the work may be braked and the tool rotated. In a modification, the tool-holder carries a feeler 39, Fig. 3, which can move axially to operate a switch 42, and can tilt to operate a switch 41, which switches control slow rotation of the workpiece. When a gear has been finished by rotation of the tool or work, the tool is moved radially until the feeler 39 is moved to actuate the switch 41. The workpiece then rotates slowly until the feeler drops into a tooth gap. The work is then braked and the tool withdrawn axially. During engagement of the tool and gear, the switch 42 is operative. The end of the feeler 39 may be shaped as in Fig. 4 so that only one switch 43 is necessary. The gears may be supplied from a magazine.
Patent GB-443178-A (GB)
Title: Servo devices for use in the control of watercraft or aircraft
IPC: B64C13/00
Filed: 1935-02-08
Abstract: 443,178. Controlling aircraft. ARMSTRONG WHITWORTH AIRCRAFT, Ltd., SIR W. G., LLOYD, J., MURRAY, C. V., and BATCHELOR, J. W., Whitley, Coventry. Feb. 8, 1935, No. 4089. [Class 4] A pivoted control member is provided with a servo-flap which is supported thereon and carries an arm linked to a sliding part supported upon the control member in the vicinity of, but transversely to, the pivotal axis of the control member, the sliding part co-operating with a stationary portion of the craft through a cam or linkage mechanism designed to give a desired servo characteristic when the control member is moved. As shown, a servo-flap 13 on a control member 12 is operated by a rod 15 adjustably connected to a slidable member 16 mounted transversely to the axis 17 of the control member. The free end of the rod 16 is pro. vided with a roller 21 engaged in a cam slot 19, 20, 22, fixed to the wing 18 and which may be shaped to give any servo-characteristic to the flap 13. The length of the rod 15 may be adjusted by a chain and sprocket wheel 23.
Patent GB-1179302-A (GB)
Title: Improvements in or relating to the Continuous Ringless Spinning of Yarn.
IPC: D01H4/10
Filed: 1967-01-27
Abstract: 1,179,302. Break-spinning. VYZKUMNY USTAV BAVLNARSKY. 27 Jan., 1967 [11 Oct., 1966], No. 4089/67. Heading D1D. In a method of break-spinning using a rotary spinning-chamber having a collecting surface for the separated fibres and a withdrawing channel, the yarn passes over a rotary surface in its path between the collecting surface and the withdrawing channel, so that it is deflected and subjected to friction. The chamber 1 is arranged to be driven inside a stationary housing by a wharve 7. The cover 9 of the housing also closes the chamber, and has an inlet 10 for fibres separated at 12, and a channel 15 through which yarn is withdrawn by rollers 16. The side wall of the chamber is inclined and acts to guide fibres delivered at 10 to a collecting-surface 14 which is formed between the wall and the inclined surface 201 of a rim 20 concentric with the base of the chamber. The rim 20 projects upwardly above the direct line between the collecting surface and the yarn outlet so that the yarn is deflected and is entrained by and subjected to friction on the surface 201. This prevents a change in the direction of movement in the point when the yarn picks up the fibres, due to impurities or accumulations of fibres. Forms are described in which the rim has a flat upper surface, Fig. 4 not shown, and in which the fibres enter the chamber at the end opposite that through which it is withdrawn.
Patent GB-370558-A (GB)
Title: Variable gearing
IPC: F16H61/02
Filed: 1931-02-10
Abstract: 370,558. Variable-speed gearing. GALE, F. G. L., 30, Burns Buildings, Holloway, London. Feb. 10, 1931, No. 4093. [Class 80 (ii).] Variable-speed epicyclic gearing comprises driving and driven elements A, B connected by planets C supported in a loose drum D with a sine-curve groove M in its periphery. The groove M is engaged by the end of a pendulum lever E which is free to oscillate in the plane of Fig. 1 along with a pivot bar J of square section. The bob of the pendulum is a weight F slidable along the lever E and connected by a link G, Fig. 2, to a block H slidable on the bar J by a control lever L. A drive is transmitted when the free rotation of the drum is restrained by the inertia of the oscillating pendulum governor, and the restraining effect, and hence the speed ratio, is adjusted by moving the block H.
Patent GB-1596466-A (GB)
Title: Self-adhesive label webs
IPC: B65C9/18
Filed: 1978-02-02
Abstract: Labels coated with pressure-sensitive adhesive. The labels (10) are mounted on a backing strip (12) treated with a release agent and individual labels are divided from one another by a V section cut (16). Preferably the cut has an angle of the order of 120`. The labels may be rectangular, square or of parallelogram shape. The invention is applicable to labels for price marking which are intended to be dispensed from a hand-held label applicator.
Patent GB-627276-A (GB)
Title: Improvements in or relating to postal forms and the like
IPC: B42D15/08
Filed: 1947-02-13
Abstract: 627,276. Envelopes. EVER SHED, R. A., and EVERSHED & CO. (BOW), Ltd., J. Feb. 13, 1947, No. 4210. (Class 146 (ii)] A postal form has a space 18 for the sender's address or printed heading, a space below for the particulars of the addressee, a space for the matter to be communicated and a flap 20 below the latter which has a window 21 adapted to overlie the address when the form is folded for transit. In order that the form may be used as a reply form, the sender's address may also be printed on the rear of the form so as to register with the window 21. To secure the flap 20 in the folded condition for transmission through the post a tab 19 is provided which is secured in a slit 23. The flap 20 may be attached to the remainder of the form by a perforated line 22 so that, after use the flap may be readily detached.
Patent GB-401648-A (GB)
Title: Improvements in or relating to gears
IPC: F16D3/76
Filed: 1932-02-12
Abstract: 401,648. Universal joints. BUDD WHEEL Co., 2500, Hunting Park Avenue, Philadelphia, U.S.A.-(Assignees of Rosenberg, R.H. ; 2500, Hunting Park Avenue, Philadelphia, U.S.A.) Feb. 12, 1932, No. 4246. Void [Abridged as open to inspection under Sect. 91 of the Acts, Feb. 13, 1932]. [Class 80 (ii).] A spur or other gear wheel rim 11 is connected to its hub 10 by a rubber sleeve 13, so formed that it is elongated from 50 per cent to 150 per cent in the process of insertion between the hub and rim, one or both of which has a curved formation. The internal stress in the rubber, in the construction shown, is greater at the centre than at the ends. A cushioned drive, preventing back-lash and compensating for non-parallelism of the gear shafts, is obtained.
Patent GB-215825-A (GB)
Title: Improvements in printing machinery
IPC: B41F5/02
Filed: 1923-02-14
Abstract: 215,825. Rogers, H. G. Feb. 14, 1923. Rotary machines; tripping- arrangements. - A printing- machine comprises in combination stereo-carrying cylinders 3, 103, impression cylinders 2, 102, transferring and reversing cylinders 11, 13, and eccentrics 10, 110 adapted to move the impression cylinders towards and away from the stereo cylinders. This mechanism is under the control of trip gear. The cylinders are geared together and driven from a main shaft 4, the gearing being such that cam shafts 60, 118 are driven at half the speed of the shaft 4 and the shafts of the cylinders. The eccentrics 10, 110 are arranged at each end of the cylinders 2, 102 and are connected to rods 21 formed with forks 22 adapted to engage tappet levers 20 operated by cams 32, 33 arranged at each end of the shafts 60, 118 and designed to move the impression cylinders towards and away from the stereo-cylinders before and on the completion of each printing operation. The rods 21 are adapted to be moved out of engagement with the levers 20, to render the latter inoperativa when the impression cylinders are out of contact with the stereo cylinders, by foot pedals 25, 27 operating through a link 23. Sheets to be printed are fed from the table 1, and pass from the second impression cylinder to cutting and folding cylinders 130, 131.
Patent GB-857874-A (GB)
Title: Improvements in or relating to stencilling machines
IPC: B41F15/42
Filed: 1958-02-11
Abstract: 857,874. Stencilling apparatus. INNES, J. A. Feb. 6, 1959 [Feb. 11, 1958], No. 4363/58. Class 100(2) An end support for the squeegee of a power-operated screen printing machine comprises a slide member and a second member pivoted thereto and carrying a squeegee carrier bar, the axis of the squeegee and the pivoted axis being transverse to the direction of sliding, the second member engaging, at a predetermined stage in the stroke of the squeegee, a portion having relative motion with respect to the end support when the machine is operating, so that said second member is pivoted in a direction opposed by resilient means, whereupon the members are latched together, and the latching means engaging a further such relatively moving portion at another stage in the stroke of the squeegee, to unlatch the members. The squeegee 26, Figs. 1 and 4, is mounted adjustably by bolts 29 on a carrier bar 27 attached at each end to a lug 14 on a plate 3 pivoted at 4 to a block 1 slidable on a rail 2 carried on the pivoted screen frame. When the squeegee, out of contact with the screen, nears the end of its liftward return stroke, a ball bearing assembly 16 is engaged by a cam face 21 of an arm 18 pivoted at 20 to a bracket 19 on the screen frame, and when the squeegee begins its printing stroke, the cam face 21 swings the plate 3 downwards against the force of a compression spring 5, bringing the squeegee into contact with the screen, the plate 3 being latched in the operative position by a catch 11 pivoted at 10 to the block 1 and urged clockwise by a helical spring 12 engaging over a catch block 13' on the plate 3. At the end of the printing stroke, a bracket 22 on the screen frame engages the catch 11 to release it and the plate 3 moves upwards, while a rotating driven member engages a catch on the frame to release the latter, which is raised dear of the table by a counter-weight. On the return stroke, the squeegee in moving increases the moment of the frame about its fulcrum in the closing direction, until the frame moves down against the counterweight, and the process is repeated. The squeegee is reciprocated by a crank and link mechanism, attached to one of the end blocks 1 and is driven in its two directions by two separate electric motors at different speeds, the motors being alternately energised by limit switches engaged by a part of the squeegee driving-mechanism. The switches are arranged so that both motors are idle when the screen frame has not quite reached its lower position, to allow manual adjustment of the work.
Patent GB-1092817-A (GB)
Title: A dynamo-electric machine with its shaft vertical and its stator surrounded by a concrete ring
IPC: H02K1/18
Filed: 1965-02-01
Abstract: 1,092,817. Securing dynamo-electric machine cores to supports. SIEMENS-SCHUCKERTWERKE A.G. Feb. 1, 1965 [Feb. 1, 1964; April 21, 1964], No. 4373/65. Heading H2A. [Also in Division F2] A vertical shaft dynamo-electric machine has stator laminations formed as a self-contained unit that is held spaced from a surrounding concrete ring by a multiplicity of tensioned rods 7, 8 each having one end connected to the outside of the stator 1 and a portion projecting into the concrete to which it is anchored, none of the rods being bonded to the concrete, and their tension putting the concrete in compression. The laminations are held between compression plates 4, 5 and mounted on a bed 3 of the concrete ring by a structure 6. As shown, the rods are inclined at an angle to the ring radius, pass through sleeves 9 cast in the concrete, and are anchored by bell-shaped members 10 and nuts 11. In modifications, the rods are disposed radially of the machine axis tangential faces being transmitted to the ring by the structure 6, and the sleeves 9 are enlarged or elliptical to permit limited change of inclination of the rods without bending.
Patent GB-1219542-A (GB)
Title: A device for holding and cooling a specimen in an electron microscope
IPC: H01J37/20
Filed: 1969-01-27
Abstract: 1,219,542. Electron microscopes. OSTERREICHISCHE STUDIENGESELLSCHAFT FUR ATOMENERGIE G.m.b.H. 27 Jan., 1968 [2 Feb., 1968], No. 4376/69. Heading H1D. A specimen support for an electron microscope comprises a cone 3 rounded at its end and connected by a cylinder 12 to a second cone 10, a cooling medium being supplied through pipes 15 and 16 to cool the space between cones including the cylinder 12 into which a specimen carrier is inserted preferably by screwing. Preferably the pipes 15 and 16 are formed of magnetic material and are shaped to form polepieces 14 in the vicinity of the specimen, the polepieces being excited by a coil 18; a magnetic screen 20 shields the electron beam from the field so produced. The specimen carrier which screws into the lower end of the cylinder 12 (Figs. 5-5, not shown) may be of superconductive material such as lead or niobium, and may include a radioactive source for observing radiation effects. The rounded lower end of the support seats in a cap 4 in a plate 2 so that the support is movable about 5 degrees in any direction. Slides 8 on the top of the plate 2 engage the casing 3 and are movable by means of micrometer screws (not shown). The plate 2 is slidably mounted on the object lens 1.
Patent GB-557137-A (GB)
Title: Improvements in and relating to the manufacture of magnesium
IPC: C22B26/22
Filed: 1942-04-03
Abstract: 557,137. Magnesium. MAGNESIUM METAL CORPORATION, Ltd., and SPOONER, E. C. R. April 3, 1942, No. 4495. [Class 82 (i)] Magnesium in compact form is obtained from magnesium in dust form which has been produced by an electro-thermic process by distilling the dust in briquetted or agglomerated form at 650-900‹C under reduced pressure. The dust may be briquetted as described in Specification 517,994, or may be agglomerated with an oil as described in Specification 435,234. Specifications 362,835, 412,664, 413,222, and 426,821 also are referred to.
Patent GB-988521-A (GB)
Title: Process for forming decorative bodies
IPC: C09D167/06
Filed: 1962-02-06
Abstract: 988,521. Ornamenting. M. V. DE PATAKY. Feb. 6, 1962, No. 4497/62. Heading B6G. Raised decorative bodies are formed on a surface to be decorated by a process comprising forming a clear liquid polymerizable resin (as defined), mixing the resin with a thixotropic agent to convert it to a substantially stable cloudy gel, applying the gel in predetermined shape and form to the surface to be decorated, heating the gel at a temperature and for a time sufficient to cause the thixotropic agent to lose its efficacy and to permit the gel to clear, and increasing the temperature of the clear gel to effect catalytic curing of the resin. If desired, solid glittering particles may be incorporated in the gel, and on heating to clear the gel these sink through the gel and settle on the surface to be decorated as the thixotropic agent loses its efficacy. The preferred resin is a clear liquid polymerizable unsaturated polyester resin which may be copolymerized with a compound containing a polymerizable CH 2 =C< group. Lists of suitable esters, monomers and polymerization catalysts are given. Typical thixotropic agents include hydrogenated castor oil, aluminium palmitate, aluminium stearate, bentonite and calcium stearate. If desired, the resin may be coloured. It is applied to the surface, e.g. a Christmas card, using a polytetrafluoroethylene stencil. The first heating step may be carried out between 100‹ and 120‹ F., preferably from 110‹ to 120‹ F., for 2 to 6 minutes, and in the curing step the temperature is raised rapidly above 150‹ F., preferably to a maximum of 250‹ F. for a period of not less than 3 minutes.
Patent GB-490676-A (GB)
Title: Improvements in or relating to synchronising pulse separating circuits for teleyision systems
IPC: H04N5/44
Filed: 1937-02-15
Abstract: 490,676. Television. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Feb. 15, 1937, No. 4541. Convention date, March 19, 1936. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 16, 1937.] [Class 40 (iii)] A circuit arrangement for separating line and frame synchronizing pulses in a television system comprises a screen-grid valve 10, to the control grid of which the synchronizing pulses (differing in duration) are applied and having in its anode circuit the line-deflecting coil 11 of a cathode-ray tube, the coil 11 being shunted by a circuit including a rectifier 12, and a resistance capacity network 15 being connected in the circuit of the screening grid. With this arrangement a saw-tooth wave form at the linefrequency is generated in coil 11 and pulses at the frame-frequency may be taken from network 15 at point A and applied directly or through an amplitude-selecting stage to a sawtooth oscillator for the frame-frequency. A network 14, comprising resistance 18 shunted by capacity and having a time-constant at least of the order of a line period and which may be greater than a frame period, is connected in series with rectifier 12. Specification 400,976 is referred to. The Specification as open to inspection under Sect. 91 comprises also a similar arrangement for use in a system in which one or more line pulses are omitted before a frame pulse, particularly for a system with interlaced scanning. The network 14 is replaced by a potential source of lower potential than the anode source 13, and the pulses at the frame-frequency may be taken off from the network 15, which contains inductance, through a transformer coupling. This subject-matter does not appear in the Specification as accepted.
Patent GB-286860-A (GB)
Title: Improvements in or relating to apparatus for facilitating trade
IPC: G09F7/00
Filed: 1927-02-18
Abstract: 286,860. Johnston, S. M. Feb. 18, 1927. Selling goods, profit-sharing systems of.-A device comprising a number of sealed compartments concealing symbols indicative of varying values, which are exposed to view when the seals are broken, is provided for use in shops &c. for allotting bonuses to purchasers. In the construction shown in Fig. 2, a shallow box, which can be supported in an upright position by a flap 10, contains balls 3 of different colours enclosed between paper seals 2 in perforations 1 in the front wall. When a wire key is passed through a perforation, the released ball falls down into view at a window 4, upon a spring partition 5, which can be depressed by means of a rod inserted through a hole in the top of the box, to allow the balls to falls out of sight. The front wall is made of three plies a, b, c interleaved with two sheets of thin paper to form the seals, and may be removable for replacement by a refill. According to the Provisional Specification, pellets are used to break into sealed compartments having an inscription on the bottom.
Patent GB-764578-A (GB)
Title: Improvements in or relating to automatic filters for liquids
IPC: B01D29/11
Filed: 1955-02-16
Abstract: 764,578. Filters. BERLINE, R. Feb. 16, 1955 [Feb. 18, 1954], No.4623/55. Class 46. In a filter of the kind in which filtration flow is from inside to outside the element and cleaning is by back-flushing, a reserve supply of filtered liquid under pressure is provided, inter alia to maintain filtrate output during backflushing, and in addition the admission of liquid to be filtered and discharge of sludge from the wall of the filter element are controlled by electromagnetically-operated valves. Liquid to be filtered is admitted through an electromagnetically-controlled valve 7 to the inside of a filter element 1 and the filtrate is kept under pressure either by partially closing a valve 12 on the outlet pipe 11 or by connecting the latter with a tank (not shown) under liquid or air pressure, so that a vessel 3 also contains filtered liquid under pressure and, by closing a vent 5, air under pressure. At predetermined intervals time-relay 9 closes the valve 7 and opens another valve 8 communicating with a drain 14 so that back-flushing and drainage of sludge occur while at the same time normal filtrate flow is maintained. The duration and frequency of back-flushing are governed by a dash-pot 10 and by the time-relay 9, respectively.