baber/WOPTO huggingface dataset:
Patent GB-1078651-A (GB)
Title: Method of and apparatus for changing spindles in a double twist spindle frame
IPC: D01H9/04
Filed: 1965-02-17
Abstract: In a 2:1 twisting-frame, an entire spindle, previously prepared i.e. provided with a package and threaded-up and, if desired, with an end connected to a winding-on package or held in a clip, is provided at each station to replace the working spindle if the yarn breaks or is exhausted.  "Entire spindle" means a unit comprising the spindle proper, its bearings and the whorl, the package support, the balloon-limiter.  When the units are exchanged, so also may be the winding-on packages or bobbins.  The change-over is initiated by movement of a thread-feeler when an end fails or slackens.  In one form, movement of the feeler energizes a solenoid to free a spring-urged member to force the whorl out of contact with the driving belt; a carrier for the working and reserve spindles can then be moved by hand along a curved track, Fig. 1, not shown, to a position where it can be rotated to reverse the positions of the spindles, which are then moved back along the track.  In other forms, the carrier is moved in a vertical or horizontal plane, to a position where it can be rotated, by hydraulic-pressure, when the feeler opens a magnetically-controlled valve.  In a form, Fig. 4, not shown, where the carrier is moved horizontally, rotation is automatically caused by a rack-and-pinion: in other forms, the carrier moves vertically and its rotation is caused by cams.  Details (a) a form of twister is described, where the yarn on leaving the package travels through a brake and is then withdrawn through a guide above the package, outside which it balloons before travelling downwardly through the spindle to be wound up below it; Fig. 6, not shown (b) magnets in the whorl ensure that the spindle stops in such a position that the thread-aperture is accessible; (c) the balloon-limiter has a hinged portion to give access to the package inside, (d) the twisted yarn may be wound up in a package, Fig. 3, not shown, built in a conical base member to which the yarn enters from a reciprocating guide through a slot.
Patent GB-1387841-A (GB)
Title: Fluid control valve
IPC: F16K1/52
Filed: 1972-02-15
Abstract: 1387841 Valves BLEASE MEDICAL EQUIPMENT Ltd 15 Feb 1972 6993/72 Heading F2V A valve for controlling gas exhaled by a patient and flowing from inlet 12 to outlet 14 comprises a resilient valve disc 42 attached to a shaft 46 which is slidable in sleeve 48 and is biased by spring 52 towards a seat 22. The seat is formed on a plunger 16 which is slidably adjustable in cylindrical housing 10 by the threaded connection with a shaft 28. Rotation of the shaft 28 by knurled knob 30 adjusts the seat relative to the valve member to adjust the pressure at which the valve closes.
Patent GB-1132032-A (GB)
Title: Process and apparatus for the manufacture of thermo-shaped evacuated plastics film packages
IPC: B65B31/02
Filed: 1966-02-17
Abstract: 1,132,032. Packaging-machines. KALLE A.G. 17 Feb., 1966 [20 Feb., 1965], No. 7018/66. Heading B8C. [Also in Division B5] Evacuated packages of thin plastics film are formed by feeding a plastics web into position above a mould at a first station where it is thermo-shaped to form a container, a length of the web having been cut off before shaping. The container and mould are then moved to a second station where the container is filled. At a third station a length of plastics web is positioned over and partly sealed on to the container, leaving an unsealed portion of the seam through which the container is subsequently evacuated. The container is then completely sealed and removed from the apparatus. As shown, four moulds 3, Fig. 2, are removably arranged by angle strips (20), Fig. 4 (not shown), on arms of a carrier 2, intermittently rotated about shaft 1 to move the moulds between the four stations. At the first station, a web is drawn over and lowered on to the mould by a gripper 21, pins 14 on the margins of the mould anchoring the web to it so that the gripper can be withdrawn leaving the web in position. Jaws (23), (24), Fig. 8 (not shown), of the grippers are spring-biased together and are so shaped that the film is held securely in the supply direction but not in its retraction direction, so that, after positioning the web over the mould, the jaws can slide back over the web while maintaining it under tension. After the gripper has been retracted, a heated mould cover 8 is lowered on to the mould, a knife 25 mounted on the cover co-operating with a knife edge 26 mounted on the mould to cut off a length of the web. This length of web is then shaped by the application of pressure or vacuum. The cover is then raised and the mould 3 rotated to the second station where it is filled by a device (32), Fig. 3 (not shown). At the third station, grippers similar to those used at the first station position a length of webs over the mould and filled container and secure it to the mould by the pins 14. A mould cover 33 is then lowered on to the mould, a knife 41 cooperating with the knife edge 26 to cut off a length of web. Margin (34), Fig. 7 (not shown), of the cover 33 function as the welding surface to seal the cover on to the container, an unsealed gap being left in the margin at one side of the package by which it is evacuated through a pipe (37), Fig. 7 (not shown). This gap is then closed by a slide (35) acting as a welding surface, and the mould cover is raised. As the mould is moved to the fourth station, a roller 17, see also Fig. 3 (not shown), connected to an ejector plate 15 in the base of the mould, travels over a cam (19), see also Fig. 1 (not shown), to raise the ejector plate and thereby lift the package out of the mould. During the final passage of the mould back to the first station, the package is pushed off the plate 15 into a shoot (39), Fig. 1, by a cam (38).
Patent GB-942006-A (GB)
Title: Circuit mounting assembly
IPC: H01R13/40
Filed: 1961-02-27
Abstract: 942,006. Magnetic storage apparatus. SPERRY RAND CORPORATION. Feb. 27, 1961 [Feb. 25, 1960], No. 7098/61. Heading H3B. The planes of a magnetic core storage array are respectively located in recesses on opposite sides of an insulating mounting board 400, the thickened edges A, B, C, D of the board supporting pairs of resilient connecting terminals 406, 408, 410, 412 which engage corresponding terminals of adjacent boards when several matrix planes are assembled in a stack. The board may be formed from Black Phenolic and comprises a central portion 402 of reduced thickness between the board edges A-D. Each pair of connecting terminals such as 406, Fig. 4, is embedded in a board edge so that a single terminal extends into each recess. The row and column wiring is then effected by connections 110, 210, which extend through the cores of each plane and connect adjacent connecting terminals with respective conducting pins 420, 422, 424, 426 passing through the recessed portion of the board. Other pairs of resilient connecting terminals 450, 452, 454, 456 are provided which are connected to inhibit and sense windings Z, S associated with the two matrix planes. The resilient connecting terminals may be formed from beryllium copper sheet as assembled units 666, Fig. 6, the units being moulded in the board. Subsequently, the connecting terminals are separated by removing breakaway portions 604, and 606. Alternatively, separate resilient connecting terminals 700, Fig. 9, may each be inserted in a separate hole in the mounting board edges, the terminals in this case being located by a displaced portion 712 and a cranked portion 714.
Patent GB-630117-A (GB)
Title: Improvements relating to feed change mechanism for lathes and like machine tools
IPC: B23Q5/14
Filed: 1945-03-28
Abstract: 630,117. Lathe details. POTTER & JOHNSTON MACHINE CO. March 28, 1945, No. 7287/48. Convention date, May 26, 1944. Divided out of 630,068. [Class 83 (iii)] [Also in Group XXIV] A lathe or like machine having a slide operated by feed-change mechanism is characterized in that the latter includes a main feedshaft carrying a rotatable clutch-head, a set of gears rotatable with the clutch-head, a number of countershafts each with a rotatable clutchhead carrying a gear meshing with one gear of the set of gears, and a gear fast on each of the countershafts driven from the lathe spindle. The machine is of the type described in Specification 630,068 and the headstock drive and spindle arrangement are described in Specification 630,108. The feed-drive is taken through toothed gearing from a sleeve splined to the main spindle (not shown), finally driving through gears 74, 75 (spaced out for convenience of illustration). The wheel 75 is splined on a short shaft 76 freely journalled in the end of a feed output shaft 77. Pick-off gears 101-106 transmit the feed-drive at different speeds from the shaft 76 to three shafts 78-80 each provided with a clutch 81, 83, 85 respectively, which enables each shaft, selectively, to drive a gear cluster 88-90 on shaft 77 through gear pairs 84, 89; 82, 88; and 86, 90 respectively. A clutch member 96 on the feed output shaft 77 enables either the gear cluster 88-90 to be engaged to drive this shaft for the slow feed movements or a gear 95 to be engaged to obtain a high-speed drive through gearing 97, 99 from a continuously rotating constant-speed electric motor 100. The shaft 77 is coupled to a further feed-shaft 30 through a safety shearpin device 108-110 and gearing 107, 111. Provision is made for hand-cranking the feed train at 118a when setting the machine up, and safety means are incorporated whereby engagement of the hand-crank is impossible until the feed clutch 96 is rendered in the neutral position.
Patent GB-622356-A (GB)
Title: Improvements in or relating to the application of plastic lines to road or other surfaces
IPC: E01C23/24
Filed: 1947-12-10
Abstract: 622,356. Line-marking apparatus. VINCENT, A. Dec. 10, 1947, No. 7298. [Class 132 (ii)] In a machine for marking continuous or intermittent plastic lines on roads comprising a tank 9 for the plastic material mounted on wheels 2, 3 and heated by burners 20, the tank being connected to a chute 12 controlled by a shutter 13 actuated by a handle 16, the chute 12 is connected to the tank 9 by a flexible pipe 11 and can be raised or lowered relative to the road by a handle 26. The burners are fed from a fuel tank in a compartment 7 and the chute 12 may be heated by an additional burner 21.
Patent GB-345467-A (GB)
Title: Improvements relating to selective card cabinets
IPC: G06K21/02
Filed: 1930-03-06
Abstract: 345,467. Sorting index cards. INFALLIBLE CARD SELECTING CO., Ltd. and TAYLOR, E. W., 9, Pitsford Street, Birmingham. March 6, 1930, No. 7317. Addition to 281,949, [Class 106 (i), Calculating &c.]. [Class 106 (i).] In a cabinet for filing and sorting index cards according to the parent Specification the card-engaging rods 5, instead of being moved axially to rotate them, are prevented from axial movement and are rotated by their twisted ends 12 coacting with slots 13 in key-operated levers 14. The card rods, in section, have a long and a short axis as in the parent Specification. When a lever 14 is pressed to the right, Fig. 3, about its pivot 16, by its key 23, it rotates its rod 5 90‹ so that the long axis of this rod 5 is vertical and may pass through the narrow end of the key-slot in the card edge when the cabinet is inverted. Alternatively, the card may be ejected by the means described in Specification 327,610, [Class 106 (i), Calculating &c.]. The keyboard, Fig. 1, is in three denominations, a units row 21, a tens row 20, and a hundreds row 19. The keys 23 are mounted in a cover 22 which closes the recess 9 housing the levers 14, the end of card rods 5, &c. To press all the levers 14 simultaneously to the right, Fig. 3, a bar 27, common to all levers 14, and hung on links 28 pivoted at 29, is actuated by keys 31. These levers 14 are returned to the left by a second bar 36 on levers 37, 39, pivoted at 38.
Patent GB-914254-A (GB)
Title: Improvements in or relating to apparatus for generating sawtooth currents
Inventor: BATE FRANCIS DOUGLAS
IPC: H03K4/43
Filed: 1959-03-03
Abstract: 914,254. Valve and transistor saw-tooth generating circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 19, 1960 [March 3, 1959], No. 7385/59. Class 40 (6). A saw-tooth generator is coupled to an amplifier via an adding network, the waveform being linearized by feedback via a differenting and an integrating circuit to the other input of the adding network. The Specification describes frame deflection circuits for television receivers. In Fig. 1, the capacitor C 1  is charged via resistor R 1  and repetitively discharged by means of the oscillator V 1 . The saw-tooth wave so produced is fed via the left-hand part of potentiometer R 2  to the grid of the amplifier V 2  and thence via transformer T to the deflection coil SC. The effect of the inductance of transformer T on the linearity is minimized by a negative feedback circuit comprising a differentiating circuit C 4 , R 4  and an integrating circuit R 3 , C 3 , the latter circuit reducing the amplitude of flyback pulse fed back. The amount of feedback and hence the scan amplitude is controlled by variation of potentiometer R 2 , which acts as an adding network. Resistor R 3 . may also be variable. Fig. 2 shows a similar circuit using a transistor amplifier TS in which the base bias is derived from a potential divider R 7 , R 8 . The use of isolating resistors for feedback and input paths prevents faulty interlacing due to unwanted line pulses being fed back from the output circuit to the frame oscillator V 1 . Specification 479,113 is referred to.
Patent GB-1182098-A (GB)
Title: Improvements in or relating to Apparatus for Diverting Pipeline Scrapers or similar Devices
IPC: F16L55/46
Filed: 1968-02-15
Abstract: 1,182,098. Pipe cleaning apparatus; pipe junction pieces. HELMERICH & PAYNE Inc., [trading as F. H. MALONEY CO.]. 15 Feb., 1968 [29 March, 1967], No. 7464/68. Headings F2G and F2N. Apparatus for diverting pipe-line scrapers, plugs, pigs &c., which are propelled through pipe-lines to scrape deposits from the inner walls thereof, at the intersection of at least three pipe-lines comprises a housing 10 with ports such as 12, 14, 16 each arranged to be connected to a pipe-line, a conduit 50 rotatably mounted within the housing 10 for selectively connecting a pair of adjacent ports 12, 14, 16, the conduit 50 being in the form of a pipe section smoothly curved in the axial direction and adapted to be positioned in full-flow communication between the two connected ports, and an operating shaft 40 being provided for rotating the conduit within the housing. The conduit 50 is welded within a cylindrical body 28 which is rotatably mounted by a pin 30 in a cylindrical chamber 26 within the housing 10, the space between the conduit 50 and the inner walls of the body 28 preferably being filled, e.g. with rubber, or plastics, material. The operating shaft 36 extends upwardly through a stuffing box 52 in a cover flange 22 bolted to the upper face of the housing 10 and carries an angular shaped operating handle 46 which has embossed thereon a double-ended arrow to indicate the position of the conduit 50. The handle 46 carries a stud 64 which can be screwed into one of three nuts 66 secured to the cover flange 22 to secure the handle in its selected position. The conduit 50 is spaced, e.g. from 1/32 to 1/16 of an inch, from the wall of the housing. A conduit with a 90-degree bend would be employed with a junction of four pipelines.
Patent GB-765639-A (GB)
Title: Improvements relating to silencers for motor vehicle and other internal combustion engines
IPC: F01N1/08
Filed: 1955-03-15
Abstract: 765,639. Exhaust-silencers. THERESE, M. P. H. March 15, 1955 [March 16, 1954], No. 7483/55. Class 7 (2). A silencer comprises a truncated conical casing 1 attached by the larger end thereof to an exhaust pipe 2, at least one expansion chamber 3 the outlet end of which is formed by a circular cone 6 coaxial with the casing and having the apex thereof directed towards the flow of exhaust gas, and an assembly of ducts 7 extending along part of the length of and around the periphery of the casing, the gas passing from those ducts to an outlet tube 9. As shown in Fig. 1, the pipe 2 terminates in a nozzle 4 provided with a screen 5 and disposed at the middle and on the axis of the chamber 3, the gases being deflected by the cone 6 and into the ducts 7 which are formed by the corrugations of a helically wound strip of sheet metal. The cone 11, into which air is entrained, together with the tubes 9,.10, forms a device which accelerates withdrawal of the gases from the silencer. In modifications, (a) there is an inner casing 1d, Fig. 2, and expansion chambers 3a and 3b are formed between that casing and opposed cones 6a, 12a and 6b, 12b, the tube 9 being provided with apertures 14, and the casing 1 having peripheral slits 18, and (b), Fig. 3 (not shown), each expansion chamber is closed at the outlet end thereof by an apertured cone. French Specification 1,031,218 is referred to.
Patent GB-283765-A (GB)
Title: Improvements in and relating to colour photography
IPC: G03C7/20
Filed: 1927-03-17
Abstract: 283,765. Tarbin, W. T. Feb. 1, 1927, [Convention date]. Colour photography.-In the production of colour-record negatives by the simultaneous exposure of a number of superimposed layers sensitized for different colours, the layer sensitive to blue is located during exposure farthest from the source of light, and normally comprises a high speed bromide emulsion. The compound material may include stripping films, and in one form comprises a red-sensitive stripping layer on glass, a blue-sensitive layer on glass, and a green-sensitive non-stripping' layer on thin celluloid enclosed between the layers supported by glass. The stripping films are of known kind, for example such as may be peeled from their supports after cutting round the edges of the film with a penknife. The supports may be held together by clips provided with means, such as V-shaped notches, whir;h form impressions during exposure so as to facilitate registration of the positives subsequently to be printed from the negatives. Certain of the layers may be dyed to act as light filters. When red and green sensitive layers are used which are also sensitive to blue, the formation of blue records on these layers is avoided partly by employing a yellow compensating filter over the taking lens and partly by adjusting the speeds and translucencies of the several layers. For roll-film work or kinematography, the layers may be supported on a single band, as of celluloid, one or more of the layers being strippable; or each layer may be carried on a separate support, and the films be passed together through the gate of the camera, which is provided with means for facilitating registration of the positives subsequently to be printed.
Patent GB-675200-A (GB)
Title: Articles having an improved resistance to microbal attack
Filed: 1949-03-19
Abstract: Shaped articles having resistance to microbal attack are obtained from compositions comprising aqueous dispersions of polyvinyl acetate, polyvinyl chloride, polymethacrylates, or polyacrylates, and a metal salt of 2,21-dihydroxy-5,51-dichlorodiphenyl methane having a solubility in water at 25 DEG  C. of less than 0.20 parts by weight for every 100 parts by weight of solution.  Specified salts are those of aluminium, mercury, magnesium, zinc, cadmium and monovalent copper.ALSO:Shaped articles resistant to microbal attack are formed of, or comprise a material incorporating a metal salt of 2,21-dihydroxy-5,51-dichlorodiphenyl methane having a solubility in water at 25 DEG  C. of less than 0.20 parts by weight for every 100 parts by weight of solution.  The preferred salts are those of aluminium, mercury magnesium, zinc, cadmium, and monovalent copper. In examples, the mercuric, aluminium, and magnesium salts were prepared by precipitation by adding to an aqueous solution of the disodium salt of 2,21-dihydroxy-5,51-dichlorodiphenyl methane, aqueous solutions of mercuric chloride, aluminium sulphate and magnesium chloride.  The salt was then washed with water and dried.
Patent GB-1216902-A (GB)
Title: Semiconductive glass composition exhibiting negative incremental resistance
IPC: C03C3/32
Filed: 1968-02-15
Abstract: 1,216,902. Semi-conductive glass. ITT INDUSTRIES Inc. 15 Feb., 1968 [23 Feb., 1967], No. 7517/68. Heading C1M. [Also in Divisions C7, H1 and H3] A semi-conductive glass having an electrical voltage-current characteristic including a region of negative incremental resistance when the glass is in the low resistance state comprises a substance from the ternary group thalliumtellurium-selenium having a composition, by weight, within the shaded area A of Fig. 1. A preferred composition consists of by weight 33% tellurium, 12% thallium, and 55% selenium. Samples were made by weighing out the required quantities of thallium, tellurium and selenium in a dry nitrogen atmosphere and transferring to a quartz vial which was then evacuated and sealed. The vial was then heated in a steel bomb at 900 C. for 12 hours in a horizontal furnace, and then for a further 2 hours in a rotating furnace. Reference has been directed by the Comptroller to Specification 1,126,044.
Patent GB-127558-A (GB)
Title: Improvements in Apparatus for Engaging and Fastening Plateholder Frames and Film Holders on the Body of Photographic Apparatus.
IPC: G03B17/04
Filed: 1919-03-26
Abstract: 127,558. Soc. d'Optique et de MÚcanique de Haute PrÚcision. May 25, 1918, [Convention date]. Cameras, attaching dark slides to.-One or both of the usual fixed slideways d along which the dark-slides c is inserted is replaced by a bar e spring hinged to the body so that the darkslide is secured by a snapping movement. The slideways may be secured by flexible strips fixed to the body and retracted by a central lever G let into the top of the camera.
Patent GB-703931-A (GB)
Title: An electric selecting device responsive to impulses
Inventor: FOSTER WILLIAM GORDON
IPC: H01H63/36
Filed: 1951-04-02
Abstract: 703,931. Automatic exchange systems. TELEPHONE MANUFACTURING CO., Ltd. March 14, 1952 [April 2, 1951], No. 7638/51. Class 40 (4) [Also in Group XXXVIII] A selective relay unit of the type described in Specification 689,735 in which one of a number of magnet-operated fingers can be interposed between the related set of contacts and the armature of the relay, is duplicated in a selecting device, characterised in that successive sets of contacts on either relay unit are connected to successive finger magnets on the other so that each relay unit when energised closes a circuit for a finger magnet on the other and means are provided for operating said relay units in succession. Closure of the loop energises IP to operate B, so energising finger magnet FMI which moves its finger f1 between contacts sr 1 (a) 1 and armature AR1. IP follows dialled impulses, the first release of IP energising SR1 and C. SR1 operates the armature AR1 to energise finger magnet FM2. SR1 locks up through SW which does not energise however until the end of the impulse when IP pulls up again. When IP releases for the second impulse, SR2 operates its armature AR2 to energise FM3. SR2 locks up and releases SR1, SW holding up until the end of the impulse. The operation proceeds in this manner for successive finger magnets. At the end of the' train C relapses slowly to restore the last-operated finger magnet and close a circuit through the selected b contacts, e.g. sr 2 (b) 2, of the last operated relay unit.