baber/WOPTO huggingface dataset:
Patent GB-1476734-A (GB)
Title: Protectively coated metal substrates
IPC: B29C48/05
Filed: 1974-05-06
Abstract: 1476734 Coated metals COLORGUARD CORP 6 May 1974 [31 July 1973] 30320/76 Divided out of 1476733 Heading B2E A protectively coated metal substrate comprises the metal substrate and a thermoplastic vinyl resin coating bonded thereto by means of a hot melt resinous adhesive composition comprising a phenolic-modified terpene resin and ethylene-vinyl acetate copolymer. The metal may be copper, aluminium, brass, magnesium, steel, alloy steel. The substrate may be wire, tubing, H-beams, web constructions, flat plate, cable, filament. The thermoplastic resin may be polyvinyl chloride or a copolymer of vinyl chloride with a vinyl ester e.g. vinyl acetate, butyrate, propionate.
Patent GB-860414-A (GB)
Title: Improvements in cardboard centre cores for reeling paper, synthetic film, metallic fo
Inventor: NELMS THOMAS GEORGE
IPC: B65H75/28
Filed: 1958-09-23
Abstract: 860,414. Winding webs. ROLEX PAPER CO. Ltd. Aug. 28, 1959 [Sept. 23, 1958], No. 30412/58. Class 100(1) [Also in Group XXVIII] A centre core, e.g., of cardboard for winding paper, synthetic film, metallic foil and like material is provided on at least part of the external surface with a coating of a pressuresensitive adhesive protected externally by a removable covering of paper or synthetic film. The adhesive may be applied in a single strip extending the whole or substantially the whole width of the core or in the form of one or more strips extending helically around the outer surface of the tube. Alternatively, two rings are applied to those portions of the core which will contact the margins of the material to be wound.
Patent GB-396963-A (GB)
Title: Improvements in or relating to change-speed gearing suitable for power-driven vehicles
IPC: F16H3/08
Filed: 1932-10-31
Abstract: 396,963. Change-speed gearing. DAIMLER-BENZ AKT.-GES., Untertiirkheim, Stuttgart, Germany. Oct. 31, 1932, No. 30494. Convention date, Dec. 28, 1931. [Class 80 (ii).] Change-speed gearing for vehicles comprises a high-speed direct drive without a freewheel and another high-speed drive through silent helical gearing with a freewheel, and change between these drives to eliminate or bring in the freewheel can be effected noiselessly without declutching by throwing over a pair of clutches 11, 14 with rejecting teeth. During this throw over a clutch 10 must be engaged which connects a driving-shaft 1 with a sleeve 3 loose on a driven shaft 2. The clutch 11 is splined on the sleeve 3 and, in direct drive, this clutch engages a clutch 12 fast on the shaft 2. When the alternative clutch 14 is engaged, the drive passes through a helical pair 5, a countershaft 4, and clutch members 14, 18 to the boss 20 of the freewheel, and through one-way grip rollers 25 and a helical wheel 9 to a like pinion 8 fast on the shaft 2, the train being preferably sized to yield an overdrive. Lower speeds are effected through sliding spur pairs 6, 7. The freewheel is housed within the wheel 9 to diminish overall length.
Patent GB-640045-A (GB)
Title: Improvements in or relating to view simulating apparatus
Inventor: SPARKE JACK WELTON
IPC: G09B9/32
Filed: 1947-11-17
Abstract: 640,045. Ground trainers for pilots. MINISTER OF SUPPLY. Nov. 17, 1947, No. 30495. [Class 4] An apparatus for simulating the view from an aircraft during landing comprises a member bearing a representation of the terrain, an optical system through which the observer views the representation, means including at least one steerable driving wheel in frictional engagement with the member for feeding it through the optical system, two linkages operable in response to movement of a dummy control column, one of which operates to steer the driving wheel and thereby change the direction of feed of said member, and the other of which operates to adjust the optical system to change the appearance of the viewed image of the representation corresponding to that obtained by adjustment of the control column of an aircraft. In the form shown, the pupil views a picture projected on to a screen 12 from a slide 17, the latter of which is operated by frictional engagement with spaced coaxial wheels 23 and a rear central wheel 22 of a tricycle member 21. The slide may be transparent and bear a representation of the ground or, as shown in Fig. 4, may be of metal with a series of apertures 17a representing runway lights. In the latter arrangement the wheels are duplicated, one set engaging each side of the slide 17. The rear wheels 44 are driven by a motor 46 whose speed is constant or controlled by the setting of a dummy throttle lever or the fore-and-aft setting of the dummy pilot's control column. The angular setting of the wheels 44 about the shafts 45 is determined by the transverse position of the dummy control column, the latter being coupled to a frame 41. The effect of a cross wind may be simulated by adjusting the carriages 21 about pivots 42. The optical system is shown in Fig. 5, the horizontal viewing screen 12 shown in Fig. 1 being replaced by a vertical screen 32, and comprises an eyepiece 34, erecting prism 19, windscreen mask 48, and a plane mirror 49 inclined at an angle of 45 degrees to the eyepiece axis, to present an upright image. The prism 19 is rotated about the optical axis of the system by traverse adjustment of the dummy control column. In the further embodiment shown in Fig. 6 the member 17 is controlled by two pairs of motor-driven wheels 51, the motors 54 being controlled by the aileron movement of the dummy control column, to run at equal or different speeds to steer the member 17, the mean speed of the wheels being constant or controlled by a dummy throttle lever, or the pitch adjustment of the dummy control column.
Patent GB-1179964-A (GB)
Title: Thread Trimming Mechanism for Sewing Machines.
IPC: D05B65/00
Filed: 1967-07-03
Abstract: 1,179,964. Sewing machines. SINGER CO. 3 July, 1967 [5 July, 1966], No. 30507/67. Heading D1G. A lock stitch sewing machine comprises a movable thread-catching element adapted to engage and extend loops of needle and bobbin thread, and a movable cutter element adapted to sever at least one limb of each of said extended loops. A rotary hook 10, carried by a shaft 11, journals a bobbin case 12 restrained from rotation by a finger 13. A rod 18, formed with a thread-catching hook 19, is connected by a bar 22 to a hollow plunger 23 slidable in a bracket 21 rigid with the sewing machine frame, plunger 23 being biased outwardly by an internal spring 24. When the needle is in its lowest position, a solenoid 60, mounted on the sewing machine stand 56, is energised, whereby the armature 61 shifts plunger 23 inwardly to position hook 19 within a notch (20) formed in bobbin case 12, plunger 23 being retained in its innermost position by the engagement of a notch 27 therein with a pivoted latch 28 biased against plunger 23 by a spring 29. As the needle rises, a lug 31, rigid with the feed advance shaft 32, engages one end of a slidable bar 30, the other end of which is pivoted to latch 28 for releasing the latter from notch 27. Spring 24 then moves plunger 23 outwardly whereby hook 19 draws out loops of needle and bobbin thread, the limbs of said loops extending to the work being located under finger 13. When the needle thread loop is cast off the rotary hook, the thread extending from hook 19 to the needle is located above finger 13. A ring 42, journalled on a bearing 53 for shaft 11, carries a knife (41) positioned between the rotary hook and the throat plate 39, and also carries a pin 44 engaging a notch in a lug 51 at one end of a lever 46 pivoted at 48 on bracket 21. The other end of lever 46 has a lug 49 abutting the armature 64 of a solenoid 63 rigid with solenoid 60. When the needle is in its uppermost position and the take-up (17) acts to tighten the threads for setting the previous stitch, solenoid 63 is energised, whereby armature 64 pivots lever 46 and the latter pivots ring 42 to move knife (41) across the limbs of bobbin and needle thread extending from hook 19 to the work. On deenergisation of solenoid 63, a spring 50 restores lever, 46 and ring 42 to their initial positions. The solenoids may be energised by manuallyoperable switches. The specification describes an arrangement in which energisation of the solenoids is combined in the control system for positioning the needle either up or down as described in Specification 774610.
Patent GB-299392-A (GB)
Title: Method of covering perishable articles and products produced thereby
IPC: A23B5/06
Filed: 1928-10-22
Abstract: 299,392. Cellacote Co., Inc., (Assignees of Beadle, H. 1.). Oct. 25, 1927, [Convention date]. Materials, special, for bags; securing bags and wrappers, special means for. -Perishable articles such as fruit, vegetables, &c., are preserved by placing in a container of transparent hydrated cellulose in moist condition, the open end of the container being then pressed in so as to surround closely a protruding part, e.g. a stem, of the article, or to enclose the article entirely, the container being next dried to cause it to shrink tightly on to the article. The open end of the container may be contracted to a plurality of folds which unite and form a hard reinforced portion on drying, which portion may be surrounded by a, detachable metal clip or other retaining device. In another form. the end of the bag 1 which encloses a pineapple is twisted so as to secure it tightly to a projecting portion 3 of the fruit and to form a. tail 5 which is wound around the end to complete the closure.
Patent GB-1399377-A (GB)
Title: Power press
IPC: B30B1/40
Filed: 1972-06-30
Abstract: 1399377 Extruding; forging LANGENSTEIN & SCHEMANN AG 30 June 1972 [30 June 1971] 30701/72 Addition to 1352375 Headings B3P and B3H [Also in Division B5] A press comprises a ram 4 driven by a wedge 5 sliding on one end thereof, an impact mechanism acting on the wedge in the direction of movement of the wedge and including a rotatable spindle 8 and flywheel(s) 17, 18, and an hydraulic press mechanism 11, 12 for applying a substantial force to the wedge in its direction of movement whereby the press may be used to carry out a flow pressing operation. The spindle is either axially fixed in the wedge or in the press frame, and the flywheels 17 and 18 are spring pressed against a flange 16 secured to the spindle and are rotated thereby. Alternatively the weights may be driven by an electric motor (21, Fig. 4, not shown) and are detachably coupled to the spindle. During an impact operation the spindle may be driven by an electric motor or by a piston 13 movable inside the piston 12. During flow pressing both pistons act on the wedge. In Fig. 3 (not shown) there are a pair of cylinders having a common piston-rod connected to the wedge, the smaller cylinder alone being operative during impact operation. The ram is retracted by a pair of hydraulic cylinders 7. The ram may carry an extrusion moulding punch and a stamping or forging punch side by side. Beneath the ram there may be a sliding table carrying two pairs of dies arranged so that while one pair is being punched the other pair can be loaded and unloaded by pinchers. Ejector pins are situated beneath the table in alignment with the ram.
Patent GB-731458-A (GB)
Title: Improvements in the production of pure adipic acid dinitrile
Filed: 1952-12-04
Abstract: A process for the purification of adipic acid dinitrile containing as impurity 1-cyano-2-iminocyclopentane comprises treating it at from ordinary temperature up to about 120 DEG  C. with at least equivalent amounts, with reference to the amount of 1-cyano-2-iminocyclopentane present, of acids which do not form stable addition compounds with ketones or nitriles and which form salts with imino compounds in the absence of water, or split up the imino compound in the presence of water into 1-cyanocyclopentanone-2 and the ammonium salt of the acid used, and fractionally distilling the product.  Crude adipic acid dinitrile may be saturated with water and allowed to flow over acid ion exchange resins until the imino compound is split up into cyclopantanone-2 and ammonium ions.  Acids mentioned include sulphuric, phosphoric, hydrochloric, hydrobromic and formic acids, chlorinated carboxylic acids such as mono- or trichloracetic acetic acid, glycolic, tartaric, oxalic, succinic, adipic, benzoic, salicyclic, phthalic, terephthalic, benzene-or toluene-sulphonic and propane-1,3-disulphonic acids.  In examples, pure adipic acid dinitrile is obtained by treating the impure dinitrile containing 1-cyano-2-iminocyclopentane with concentrated sulphuric acid, filtering off the sulphates crystallized and fractionating the filtrate, 1-cyanocyclopentanone-2 being obtained as first runnings (1); in similar process phosphoric acid (3); and aqueous hydrochloric acid or tartaric acid (4) are employed; the impure dinitrile is heated with benzoic, salicylic, formic, succinic or trichloracetic acid and the product fractionated (5); or the impure nitrile is saturated with water and passed at elevated temperature through a resinous product obtained by the condensation of benzaldehyde disulphonic acid, resorcinol and formaldehyde or other acid ion exchange resin and fractionated (2).
Patent GB-501163-A (GB)
Title: Improvements in thermionic valve amplifiers and the like
IPC: H03F1/36
Filed: 1937-11-09
Abstract: 501,163. Valve amplifying circuits. SUDDEUTSCHE TELEFON - APPARATEKABEL-UND DRAHTWERKE AKT.-GES. TEKADE. Nov. 9, 1937, Nos. 30760 and 30761. Convention dates, Nov. 9, 1936 and Nov. 28, 1936. [Class 40 (v)] In a push-pull amplifier harmonic distortion is reduced by using both a positive and in addition a negative back-coupling. The Figure shows a push-pull pair of valves with in phase back-coupling from the anode of one valve to the grid of the other valve, the amount of which is controlled by resistances 43, 44. Negative back coupling for each valve is obtained by resistances 50, 51 and grid-bias is applied through resistances 52, 53, from resistance. condenser combinations in the cathode-leads. The positive and negative back-couplings may be so proportioned as to produce no overall change in amplification and may be such as to compensate for harmonic distortion due to curvature of the valve characteristics. Multigrid valves may be used and operated at such voltages as to give such a curvature of the characteristic that second harmonic can be compensated by the back-couplings while the third harmonic distortion is compensated by the curvature of the valve characteristic The Specification as open to inspection under Sect. 91 comprises also an arrangement, Fig. 1 (Cancelled) (not shown), in which positive back - coupling only was employed. This subject-matter does not appear in the Specification as accepted.
Patent GB-802917-A (GB)
Title: Improvements in and relating to installations for dispensing under pressure measured quantities of volatile liquids from a bulk supply
IPC: F16K17/00
Filed: 1955-10-27
Abstract: 802,917. Measuring fluid flow. OFFICINE BOTTO MECCANICA DI PRECISIONE, SOC. R.L. Oct. 27, 1955 [Oct. 28, 1954; Nov. 10, 1954; April 16, 1955; Oct. 19, 1955], No. 30771/55. Class 40 (3). [Also in Groups XVII, XVIII, XIX and XXIX] A mechanism for measuring the quantity of liquid discharged from a dispensing apparatus (see Group XVIII) comprises a shaft 72 driven by a paddle (not shown) and carrying within a pressure chamber 71, a cylinder 7 2 provided with bores 74 which, when aligned with windows 77 in the chamber walls, allow light from a source 75 to fall on to a photo-electric cell 76. A counting mechanism (not shown) counts the number of pulses and thereby measures the quantity of liquid discharged.
Patent GB-1401809-A (GB)
Title: Vibration damper with a hermetically-closed damping chamber
IPC: F16C27/08
Filed: 1972-06-30
Abstract: 1401809 Making vibration dampers; punches STICHTING REACTOR CENTRUM NEDERLAND 30 June 1972 [30 June 1971] 30819/72 Headings B3A and B3H [Also in Division F2] A bearing assembly comprises a vibration damping member 4 connected to the bearing 2 and disposed in a sealed vessel 10 filled with fluid, the connection being via a coupling member 3 fixed to a membrane ring forming part of the vessel wall, the ring having thickened hub and rim portions 6, 9. The damping member 4 is connected to the coupling 3 by a screw-thread 5. The coupling member 3 is mounted on a rod 12 (adjusted by nuts 14) via a ball 15 and a bush 16. The membrane is formed between press-dies 19, 20, Fig. 2, (and thereby pre-stressed), after machining has been completed and is of aluminium alloy. The outer rim is 100 times thicker than the membrane. Specification 1,298,482 is referred to.
Patent GB-1043297-A (GB)
Title: A multiplex voice frequency band compression system
IPC: H04B1/66
Filed: 1964-08-04
Abstract: 1,043,297. Multiplex radio signalling. STANDARD TELEPHONES & CABLES Ltd. Aug. 4, 1964 [July 29, 1963], No. 30886/64. Heading H4L. In a multiplex radio telephone system using "Vocoder" " type signals which are translated into pulse code and transmitted in time division multiplex the individual bit signals are modulated sequentially on different carrier waves during each cycle so that the wideband multiplex signal is transmitted over a plurality of narrow band channels. A minimum of two carrier waves may be used. A common wideband power amplifier may be used for the carrier waves. As shown in Fig. 3, twelve incoming speech channels CH1 to CH12 are fed to respective band compression devices V1 to V12 where they are separated into one pitch signal and five spectrum signal components for each channel. The pitch signals are fed via transfer switch CHS1 to a pulse coder C1 and the spectrum signals are fed via a transfer switch CHS2 to a pulse coder C2, the switches being controlled by a controller P. The spectrum signals are converted into a 3-unit code and the pitch signal is converted into a 5-unit code, the repetition rate of the carrier waves used to represent this 5-unit code being lower than that of the carrier waves used for the spectrum signals. Control circuit SEQ arranges the coded signals into a predetermined time sequence, synchronizing signals being inserted in conventional manner, and the resulting code sequence is supplied to a modulator M receiving also a predetermined sequence of carrier frequencies f1 to f8 selected by switch FS so that the appearance of each frequency coincides with a bit signal and the same carrier frequency is not transmitted for consecutive bits. The modulated carrier waves are supplied via a common power amplifier and frequencyconverter circuit A to the aerial. The receiver operates in a converse manner.
Patent GB-1333991-A (GB)
Title: Attachments for drive motors
IPC: F16D1/10
Filed: 1971-07-02
Abstract: 1333991 Grinders ROBERT BOSCH GmbH 2 July 1971 [4 July 1970] 31015/71 Heading B3D [Also in Division F2] A shaft coupling comprises on a driven member (e.g. a knife and scissors grinder) an elastomeric element 8 with a conical recess 12 engageable by part (e.g. jaws of a three jaw chuck) connected to the shaft of a motor. The driven member may have a non-rotary shield 4, with an extension 13 covering part of the motor (e.g. a power driven hand-held tool such as a drill).
Patent GB-324395-A (GB)
Title: Apparatus for the projection of small scale maps or charts printed on films to larger scale on ground glass screen for use in motor cars, aeroplanes, motor launches, yachts and the like
IPC: G03B21/10
Filed: 1928-10-26
Abstract: 324,395. Ritchie, A. M. Oct. 26, 1928. Optical-projection apparatus. - Means for displaying a map or chart, for use in motor-cars, aeroplanes, launches, &c., comprises a small scale transparent map &c. transversely movable in relation to the axis of an optical projection apparatus. As shown, a box b is fitted to the dashboard, and has a ground glass or like screen a, connected to it by bellows c, or forming its front. A mirror d reflects the image beam on to the screen from a projector comprising a lamp house p, mirror r, condenser q, and projection lens f. The projector is mounted on a rotatable tube e fitted with a carrier l for a film wound on spools m and bearing a photographic image of the map. The film may be moved by winding one or other of the spools, and the carrier may be moved across the tube e transversely to the direction of winding. The apparatus may comprise a screen fixed directly to the dashboard, and the mirrors d, r may be omitted.
Patent GB-1384328-A (GB)
Title: Method for storing signals on a carrier and a carrier therefor
IPC: H04N5/76
Filed: 1972-07-03
Abstract: 1384328 Recording and playback TED BILDPLATTEN AG AEG-TELEFUNKEN TELDEC 3 July 1972 [3 July 1971] 31075/72 Heading G5R On a record 1 a first, e.g. video, signal frequency is represented by the frequency of occurrence along a track of compressible projections, as described in Specifications 1,266,202 and 1,266,203, the projections being of equal heights, and a second, e.g. chrominance or sound, signal is represented by the ratio of the length B of a projection to the distance A between the leading edges of successive projections. On playback, the two signals are separated by filters, Fig. 6 (not shown).
Patent GB-841995-A (GB)
Title: Improvements in or relating to fluid-pressure servo mechanisms
Inventor: GOOD RICHARD SAMUEL JONATHAN
IPC: F15B9/10
Filed: 1955-10-31
Abstract: 841,995. Fluid-pressure servomotor control systems. BOULTON PAUL AIRCRAFT Ltd. Jan. 31, 1957 [Oct. 31, 1955], No. 31098/55. Class 135. A double-acting hydraulically-operated servomechanism comprises a rotary master element 1 working in a cylindrical bore 3 of a slave element 4, which slave element is movable axially within a cylindrical housing 5, the master element being provided with a continuous land 9 contacting the bore of the slave element and having at least one helical portion designed to block a flow port 13 provided in the wall of the slave element so that rotation of the master element, e.g. by a torque motor 2, in one or the other sense to uncover this port will cause differential hydraulic pressure to be applied to opposed ends of the slave element to effect translatory movement thereof in a corresponding sense until the port is again closed by the helical portion of the land. Hydraulic pressure is applied to the left-hand side of the slave element, which is of smaller area than the righthand side, through a supply port 6 which communicates through a port 8 with a space on the left-hand side of the land 9, the other side of the land being open to an exhaust port 7. Port 13 communicates with the right-hand side of the slave element through a passage 14, so that uncovering of this port in one or the other direction by rotation of the land 9 will alternately supply pressure liquid to, or exhaust it from, the right-hand side of the slave element to cause the corresponding translatory movements beforementioned.