baber/WOPTO huggingface dataset:
Patent GB-1215575-A (GB)
Title: Web handling device
Inventor: MEEUSSEN LOUIS ACHILLES
IPC: G03D3/13
Filed: 1967-02-08
Abstract: 1,215,575. Film transport apparatus. GEVAERT-AGFA N. V. Dec.28, 1967 [Feb. 8, 1967], No.6133/67. Headings G2A and G2E. [Also in Division D1] A web feeding device, especially for photographic films, comprises two parallel walls 34, 35 provided on their mutually facing sides with spiral ribs 20, 21 defining at least one spiral web path, there being an array of driving rollers 28-31 angularly spaced around the path on each side thereof, the roller peripheries intruding through the walls so that, when a web is in the path, the extreme side edges of the web are frictionally engaged by the rollers and the web is advanced upon rotation of the rollers. When the web reaches the centre of the spiral, it may be guided to another such device between walls 36, 37, or guided out of the container in which the device is mounted, or back to the outside through another spiral path intertwined with the first. In the latter case Fig. 9 (not shown), the roller arrays consist of separate coaxial rollers intruding through the walls between the rib convolutions, different roller arrays being provided for each direction of movement. A web may be fed in turn to devices in different processing liquids or gases. In the case of a liquid, the device is preferably only filled to the level 60. The device may be used as a storage cassette, e.g. for endless cinematographic film. Roller Drive. The rollers, the axes of which may not pass through the centre of the spiral Fig. 6 (not shown) and which may be formed with frustroconical steps Fig. 5 (not shown), are provided at their other ends with meshing gears 42, 43. The inner end of one roller of a pair are provided with bevel gears 40 which engage a common driving bevel gear 41. The shaft of the gear 41 carries a sprocket wheel 44 driven by an endless chain passing over a wheel 45. This wheel 45 is driven by a motor (58) Fig. 5 (not shown) which drives all the rollers of different devices when successive treatments are effected, or by the mechanism of a projector (100) Fig.13 (not shown), when the device is used in the projection of an endless cinematographic film.
Patent GB-454355-A (GB)
Title: Elastic lace fastening
IPC: A43C1/02
Filed: 1936-02-29
Abstract: 454,355. Laces; lacing- fastenings. MEIER, C., 11, Place d'Italie, Paris. Feb. 29, 1936, No. 6162. [Class 43] An elastic lace that is passed round headed studs on opposite edges of a shoe &c. has a ring 6 or 9 at each end for engagement with the first and last studs.
Patent GB-560317-A (GB)
Title: Improvements in or relating to the manufacture of low-density cellular material
IPC: C08J9/30
Filed: 1942-05-07
Abstract: A low-density cellular material is prepared by forming a froth of an aqueous solution of an alginate, and treating the froth so as to render it insoluble.  A solution of sodium or ammonium alginate may be used and the foam rendered insoluble by calcium chloride or a salt of chromium, beryllium, strontium or zinc or by formaldehyde solution.  The alginate solution may be mixed with a foam-stabilizing agent such as saponin or sodium isopropyl naphthalene sulphonate, and with a gelling agent such as calcium citrate or calcium sulphite which produces a slow conversion to calcium alginate.  The mixture is agitated to form a foam which becomes gelled and is hardened by being soaked for some days in calcium chloride or formaldehyde solution, and is then washed and dried.  Before hardening, the foam may have incorporated into it, a dispersion of synthetic resin such as phenolurea- or melamine-formaldehyde resin or polymethyl methacrylate resin or rubber latex.  Fillers such as carbon black, wood flour or paper pulp may also be incorporated.  The gelling of the foam may be controlled by addition of sodium hexa-metaphosphate or other phosphate or sodium carbonate, and the hardening may be hastened by passing electric current through the mass.  Drying may be assisted by passing alternating current.ALSO:A low-density cellular material is prepared by forming a froth of an aqueous solution of an alginate and treating the froth so as to render it insoluble.  A solution of sodium or ammonium alginate may be used and the foam rendered insoluble by calcium chloride or a salt of chromium, beryllium, strontium or zinc or by formaldehyde solution.  The alginate solution may be mixed with a foam-stabilizing agent such as saponin or sodium isopropyl naphthalene sulphonate, and with a gelling agent such as calcium citrate or calcium sulphite which produces a slow conversion to calcium alginate.  The mixture is agitated to form a foam which becomes gelled and is hardened by being soaked for some days in calcium chloride or formaldehyde solution, and is then washed and dried.  Before hardening the foam may have incorporated into it a dispersion of synthetic resin such as phenol-, urea- or melamineformaldehyde resin or polymethyl methacrylate resin or rubber latex.  Fillers such as carbon black, wood flour or paper pulp may also be incorporated.  The gelling of the foam may be controlled by addition of sodium hexametaphosphate or other phosphate or sodium carbonate, and the hardening may be hastened by passing electric current through the mass.  Drying may be assisted by passing alternating current.
Patent GB-455889-A (GB)
Title: Method of separating heterogeneous mixtures
IPC: B03B13/00
Filed: 1935-04-23
Abstract: In separating solids of different specific gravities by means of a separating medium comprising a suspension of finely divided solids in liquid, the medium withdrawn with the light and heavy particles is separated from the particles, fresh medium is mixed therewith, coarse particles are removed from the mixture, and the density of the mixture is adjusted by varying the ratio of liquid to finely divided solids so that the medium returned to the separating chamber has a predetermined density.  Part of the medium may be separated from the particles by washing in which case the diluted medium is mixed with fresh medium and the mixture thickened prior to the removal of the coarse particles and the density regulation.  The coarse particles, which are preferably removed by hydraulic classification, may be ground and returned to the circuit.  The process is described with reference to the apparatus described in Specification 455,856. Specification 455,888 also is referred to.
Patent GB-582735-A (GB)
Title: Improvements relating to telephone receivers
IPC: H04M1/65
Filed: 1945-04-05
Abstract: 582,735. Substation apparatus. CARTER, N. E. W. April 5, 1945, No. 6311/44. [Class 40 (iv)] In equipment for recording messages sent over the telephone line in the absence of a called subscriber, the recording mechanism is switched in after a predetermined number of bursts of ringing current are received and recording takes place for a predetermined time after which the recording mechanism is switched off and the system reverts to normal. Slow-release relay 8, Fig. 1, operates to intermittent rectified bell current to energize the electromagnet 10 to operate ratchet 14 to rotate shaft 16, Fig. 2, against spring 22. Cam 18 fixed to shaft 16 rotates to close switch 19 to operate relay 20 so energizing the amplifier A which also provides a D.C. source for operating electromagnets 27, 33 and relay 45. Continued rotation of the shaft causes its rigidly attached arm 24 and its pin 25 to move the armature 26 into engagement with the core of electromagnet 27. Armature 26 is attached to the freely rotatable cam 28 which then. simultaneously closes switches 29 ... 32. Switch 29 energizes coil 33 to trip the holding pawl 23 and permit the shaft to rotate back to normal under control of timing device 42. Switches 30, 31 are used to establish the speaking connections in the telephone circuit. Switch 32 operates relay 45 which connects power to the sound recorder motor SR. When shaft 16 returns to normal, cam 18 disconnects the power from the amplifier and the consequent failure of its D.C. supply restores the system to normal. The delayed action switch 46 constructed to return to the " on " position after a prescribed interval (e.g. 5 minutes) is provided so that the subscriber, if present, can disconnect the sound recorder if not required. Relay 47, having a quick make and a release so slow that it remains up during the intervals between ringing current, releases when ringing current ceases, thereby operating the electromagnet 33 to ensure tripping of pawl 23 should the called subscriber answer the call before switch 29 makes. Additional switches on the shaft may be used to produce signals indicating that recording is about to commence, or that the timing device 42 is near the end of its run. An electric motor can be used instead of the electromagnet 10 to give the shaft its initial rotation.
Patent GB-1028294-A (GB)
Title: Improvements in or relating to electrical apparatus of the kind for detecting the existence of a predetermined timing relationship between two electric pulses
IPC: G01S13/78
Filed: 1963-02-15
Abstract: 1,028,294. Pulse radar. GENERAL ELECTRIC CO. Ltd., W. HADDOCK, R. H. KIRKNESS, and C. J. WAYMAN. Feb. 13, 1964 [Feb. 15, 1963], No. 6349/63. Heading H4D. [Also in Division G4] A pulse train received from an aircraft transponder includes two reference pulses which are spaced in time by a fixed interval T. The pulse train is supplied to a shift register 4, Fig. 1 (not shown), and to another shift register 6 after being delayed by T at 3. Clock pulses having a repetition frequency sixteen times that of the pulse train, are applied to the shift input 7 of the registers 4, 6. Normally, the delayed first reference pulse enters register 6 at the same time as the second reference pulse enters register 4, the two pulses are shifted through the registers in synchronism, gates 9, 11 are opened simultaneously as the pulses reach stage IV of the registers and gate 13 produces a coincidence signal indicating that the reference pulses are correctly spaced. A variation of plus or minus one clock pulse period is accepted by means of gates 8, 10 which enable gate 13 when stages III and V store a pulse. On receiving the coincidence signal from gate 13, counter 25, Fig. 2 (not shown), starts to count clock pulses, and supplies a pulse over lead 37 to step a counter 41, Fig. 4 (not shown), once every sixteen clock pulses, i.e. at the repetition rate of the received pulse train. Counter 41, by way of diode matrix 42, enables bi-stable circuits 45 in turn so that the pulse train taken from stage I of register 6 via a bi-stable circuit 28, which is enabled by sampling signals from gate 3, is staticized and may be supplied to a decoder. A second unit 19 and staticizer may be used for a pulse train received whilst unit 18 is being used. Garbling is detected by bi-stable circuits 31, 32, Fig. 2. Circuit 31 is enabled by gate 2 during the first half of each pulse period of the received train. If the first reference pulse of another train occurs during one of these intervals (called first-pulse garbling), circuit 31 is set by the coincidence signal from gate 13. If a pulse from another group is received when a pulse of the sampled group is expected (called main-garbling) the interfering pulse, on reaching stage III of register 6, enables circuit 32 when the sampling pulse from gate 3 occurs and circuit 32 is set. The setting of either of circuits 31, 32 causes counter 41 and staticizer circuits 45 to be reset.
Patent GB-582737-A (GB)
Title: System for scrambling spoken messages
IPC: D01G15/76
Filed: 1944-04-05
Abstract: 582,737. Secret transmission. PATELHOLD PATENTVERWERTUNGS- & ELEKTRO-HOLDING AKT.-GES. April 5, 1944, No. 6377. Convention date, April 5, 1943. [Class 40 (iv)] In a system of secret telephony wherein the speech band is converted into a number of adjacent but transposed sub-bands of which the relative widths are constantly varying, the arrangement is such that at least one subband is inverted and at least one is not inverted. As shown in Fig. 4, the speech band e0 modulates successively a fixed frequency g1 and a varying frequency g2, the lower side-band being selected in each case to give the band e2. This then modulates a pair of frequencies g3, g4 spaced by the width of the band to give an inverted double-band e3 and also another pair of frequencies g5, g6 to give an erect doubleband e5. Complementary portions e4, e6 are selected from these double-bands and combined to form a double-band e7, from which the central portion is taken and shifted to produce a final band e10 comprising four subbands of varying width, two being erect and two inverted. In another arrangement of a similar character, different transpositions of the sub-bands are obtainable by a choice of carrier frequencies at the intermediate modulation stages. One or more of the sub-bands may be retarded ih relation to the remainder of the band ; for example, the selected portion e4 may be retarded by means of a telegraphone before combination with the portion e6. The speech band may be subjected to variable attenuation before scrambling. When the arrangement is applied to a multi-channel system, several speech channels may be grouped together for the purpose of scrambling.
Patent GB-1059852-A (GB)
Title: Regenerative amplifiers with response controlling means
IPC: H03K3/2893
Filed: 1964-02-14
Abstract: 1,059,852. Transistor regenerative circuits. CARTER PRODUCTS Inc. Feb. 14, 1964 [Feb. 15, 1963], No. 6386/64. Heading H3T. A regenerative switching circuit as described in Specification 1,059,851 comprising an amplifier such as a transistor provided with positive feedback to render it capable of behaving as a two-state trigger circuit and having means for periodically rendering the positive feedback ineffective so that the circuit takes up an output condition in response to an input signal which is independent of the previous output condition of the circuit, is modified by the provision of further smoothed positive feedback from the output to the amplifier to ensure that the output responds to changes in input only after a delay thus eliminating the effects of spurious signals and noise. In the circuit illustrated which is the same as that of Fig. 8 of Specification 1,059,851 with the addition of T-network R 120 , R 121 , C 120  reciprocally coupled transistor pair Q 100 , Q 101  is energized from unsmoothed fullwave rectifier source comprising transformer secondary SW 100  and associated rectifier diodes. The circuit consequently ceases to respond to input signals applied between terminals 201, 202 at periodic intervals when the supply voltage falls to zero. The circuit then resumes its previous state or changes to its other state depending upon whether the input has changed or not; however, in order that the circuit should not change state in response to spurious changes of input caused for example by noise, positive feedback from the collector of transistor Q 102  of the output transistors Q 102 , Q 103  controlling relay K 100  is fed back to the base of transistor Q 101 . The feedback signal is smoothed by and stored upon capacitor C 120  so that changes in input signal of short duration do not influence the output but a sustained and definite change will eventually cause a change in state.
Patent GB-505795-A (GB)
Title: Improvements in automatic brake adjusting means
IPC: F16D65/54
Filed: 1938-03-02
Abstract: 505,795. Adjusting brakes. TRACHSEL, E., and HUESSY, W. March 2, 1938, Nos. 6495 and 6496. Convention dates, March 2, 1937 and Jan. 28, 1938. [Class 103 (i)] A device for automatically adjusting a brake shoe to compensate for wear of the lining and which is not affected by drtun expansion comprises a feeler having clearance from the drum equivalent to the normal shoe clearance and which is moved to contact the drum by the shoe acting through an adjustable member any excess movement of the shoe over that of the feeler effecting an adjustment of the member and thus of the shoe. In Fig. 1, each brake shoe 5 is connected by a telesoopic rod 17, 18 to one arm of a bell-crank 16 pivoted on the back plate, the other arm engaging a pin 11 sliding in a fixed casing 10. The pin 11 carries a feeler 12 faced with hard material. The parts 17, 18 of each rod are threaded internally and externally respectively and the part 17 is slit so that it grips the other part. When the shoes are applied the feeler also contacts the drum and if wear of either shoe lining occurs the corresponding rod 17, 18 is extended so that the shoe returns to an adjusted position, when the brake is released. If the drum exparids during braking the feeler and shoes move correspondingly and there is no adjustment due to the expansion. In Fig. 4, a pair of shoes 5 are pivoted respectively at diametrically opposite points 4 of the back plate and are applied by hydraulic cylinders 32. Each feeler in this case is formed by one arm 40 of a bell-crank independently mounted on the pivot 4 and having its other arm connected by a link, 42 to an arm 43 pivoted on the shoe. A friction washer is interposed between the arm 43 and the shoe at the pivot 44 to resist turning of the arm so that when the shoe is applied the feeler is moved thereby to contact the drum but if wear of the lining takes place, the arm is turned to increase the effective distance between the pivots 44, 39a and thus adjust the shoe. The feeler 40 has a forked end 34a embracing the shoe whereby it is positioned when the brake is released. A telescopic rod such as shown in Fig. 1, may be substituted for the parts 42, 43. The Specification as open to inspection under Sect. 91 includes a modification of Fig. 1, in which the bell-cranks are mounted on the shoe pivots 4. This subject-matter does not appear in the Specification as accepted.
Patent GB-415487-A (GB)
Title: Improvements in floats for fishing nets
IPC: A01K75/04
Filed: 1933-03-03
Abstract: 415,487. Trawling. PROCTOR, W. F., 16, Bon-accord Crescent, Aberdeen. March 3, 1933, No. 6514. [Class 48.] A fishing net float is formed of compressed cork composition encased in moulded rubber. The float is spherical or the surface e has a smaller curvature than the surface f. The not ropes are passed through holes h.
Patent GB-329977-A (GB)
Title: Improvements in disc wheels and rims for motor vehicles and other vehicles of a like type
IPC: B60B25/18
Filed: 1929-02-28
Abstract: 329,977. Sankey & Sons, Ltd., J., Sharpe, H. P., and Gair, J. Feb. 28, 1929. Tyre attachments to rims.-In a wheel of the type described in Specification 249,702, in which the rim base B and one side flange C are formed integral with the wheeldisc, the detachable side flange E is formed as a split-ring having lugs D, Fig. 2, to engage slots in the rim-base, or a rib d, Fig. 4, to engage a groove b in the rim.
Patent GB-535919-A (GB)
Title: Improvements in and relating to control means for change-speed gears
IPC: B23Q17/00
Filed: 1940-04-11
Abstract: 535,919. Controlling change-speed gearing. SOC. ANON. EMANUELE MASCHERPA. April 11, 1940, No. 6560. Convention date, April 12, 1939. [Class 80 (ii)] In an illuminated indicator for showing the gear in use in change-speed gearing having two or more controlling hand-levers, one hand-lever 1 adjusts the position of a member 5 having windows 6, which are marked to indicate the output speeds of the different gears, and another 2 shifts a lamp-holder 3 arranged behind the windows. The windows are in two rows corresponding to two different speeds of the motor, and the lamp-holder contains two lamps, one or the other of which is lighted according to the motor speed.
Patent GB-856039-A (GB)
Title: Improvements in tube-like holders for pencils, hand-tools, instruments, etc
IPC: B43K23/00
Filed: 1956-03-02
Abstract: 856,039. Attaching flower holders and other articles to wearing apparel. BONNAIRE, M. March 4, 1957 [March 2, 1956], No. 6593/56. Class 43 [Also in Group XVII] A trough-shaped holder is shaped from narrow and wide strips 1, 2, the edges of the wide strip forming flanges which may be secured e.g. by adhesive to belts for holding flowers or other articles. The strips may be secured to each other by welding, adhesive, crimping or riveting. The strips may be made of thermoplastic material, woven material, metal or wood.
Patent GB-705463-A (GB)
Title: Improvements in or relating to arc-chutes for electric contact breaking apparatus
Inventor: BARBOUR RALPH HENRY
IPC: H01H9/44
Filed: 1952-03-14
Abstract: 705,463. Arc-rupturing in switches. ELECTRICAL APPARATUS CO., Ltd. 'March 14, 1952, No. 6615/52. Class 38(5) An arc chute has blow-out coils so arranged that magnetic forces expand the are into a predetermined path and reverse magnetic forces prevent it from expanding beyond that path. The arc chute has three groups of fins or plates 18, 21 and 22, adjacent plates having oppositely-inclined edges so as to make the arc assume a folded or zig-zag shape as it rises in the chute. Plates 16, 17, between the groups, have their lower edges at right-angles to the sidewalls of the chute, so that the arc has to pass below these lower edges. The magnetc blow-out coils 3, 4 are each associated with a pole face 5, 6, core pieces 9, 10, and a yoke 7, 8, the coils being so wound and connected as to establish a magnetic field 26 between the pole faces 5, 6 to drive the arc upwardly in the chute and a magnetic field 25 acting in the opposite direction to prevent the arc being blown out of the chute. Thus when the contacts 1, 2 are opened, the arc is driven by the field 26 up into the groups of plates 18, 21, 22 and when the upper portions of the arc come approximately into alignment with the upper parts of the coils 3, 4, further upward movement of the arc is prevented by the field 25. The yoke plates 7, 8 may be extended in the region of the moving contact 2 to prevent the arc escaping out of the bottom of the arc chute.
Patent GB-419577-A (GB)
Title: Improvements in or relating to apparatus for treating grain or the like
IPC: B02B3/08
Filed: 1934-03-01
Abstract: 419,577. Husking and scouring grain &c. ELLIS, R. E., 70, Chancery Lane, London.-(Kaspar Getreideschalmaschine Ges. ; 195, Waldstrasse, Offenbach -on-Main, Germany.) March 1, 1934, No. 6630. Addition to 405,635. [Class 58.] To prevent clogging of the beater elements of an apparatus for treating grain as described in the parent Specification in which a number of beater elements are arranged side by side on shafts inside and arranged parallel to the axis of a co-operating drum, the hubs of the beater elements are made solid. In the form shown in Fig. 1<a> the hub is composed of two annular members 5<1>, 5<2>, provided with a common bore through which the shaft 4 passes. The sides of the bore may be coned as shown at 7 ; this coning may also be arranged on the inner sides of the members 5<1>, 5<2>. The beater 6 may be balanced by a weight 6<1>. In the form shown in Fig. 2<a> the beater 6, which is provided with a stiffening rib 6<2> is carried by a hub provided with funnel shaped enlargements of its bore at each side. The sides of the hub at these enlargements may be convex.
Patent GB-242854-A (GB)
Title: Improvements in or relating to ladies' suspenders for personal wear
IPC: A41F11/16
Filed: 1925-03-12
Abstract: 242,854. Button, E. D. March 12, 1925. Stocking and sock suspenders.- The strap A and tab A are made entirely of rubber or rubber substitute with the stud B moulded integrally and with a fastening loop C moulded hinge-like into the substance of the tab. The upper clip may have one part D carried by a loop E embedded hinge-like into a part E' of the strap which terminates in a tab A<2> forming a backing for the clip. In a modification, the upper clip is detachably carried by a looped end of the strap which engages a stud preferably moulded integrally with the strap. The strap may have apertures a or ornamental mouldings. In a further modification. a double suspender is provided at each end with a wire loop and integral stud similar to that shown in Fig. 1, the middle portion of the strap running freely over a roller carried by a wire loop and clip similar to the loop E and clip D of Fig. 1.