baber/WOPTO huggingface dataset:
Patent GB-971471-A (GB)
Title: Channel tuning system for signal receivers
IPC: H03J5/02
Filed: 1962-01-02
Abstract: 971,471. Radio receiver switch tuning arrangements. RADIO CORPORATION OF AMERICA. Jan. 2, 1962 [Jan. 24, 1961], No. 168/62. Headings H3Q and H4L. In a television turret tuner, coils provided for channels on either side of a selected channel are utilized as wave-traps for adjacent channel rejection. The turret chassis includes not only fixed contacts 14, 14, Figs. 1, 2, whereby the selected coil 10 is connected to tune the grid circuit of R.F. amplifier 31 to the chosen channel, but also additional pairs of contacts 41, 42 and 44, 45, respectively, whereby the coils 18, 20 for the channels on either side of that selected are connected to capacitors 38, 39, respectively. These tune the coils 18, 20, respectively, to the channels on either side of that selected and connect them in series between the input terminal 48 and the grid of the valve so as to form wavetraps for the frequencies to which they are tuned. In another embodiment, selected coils 19 and 68, 70, Fig. 3, are connected by fixed contacts 14, 14 and 76, 77, 72, 73, respectively, to form the input circuit and a band-pass output circuit for R.F. amplifier valve 31. Corresponding coils 18, 84, 86 and 20, 85, 87 for the channels on either side of that selected are connected by additional contacts 41, 42 &c. and 44, 45 &c. respectively to capacitors 38, 89, 90 and 39, 91, 92, respectively, whereby they are tuned to the channels on either side of that selected. These additional tuned circuits form wavetraps which are coupled to the circuits for the selected channel by means of coupling capacitors 64, 94, 65, 95.
Patent GB-1214571-A (GB)
Title: Process for the preparation of isoprene
Inventor: KRONIG WALTER
IPC: C07D319/06
Filed: 1968-01-02
Abstract: 1,214,571. Isoprene. FARBENFABRIKEN BAYER A.G. 2 Jan., 1968 [2 Jan., 1967], No. 218/68. Heading C5E. In the production of isoprene by (1) reacting isobutene with aqueous formaldehyde in the presence of a catalyst to form 4,4-dimethyl-mdioxane, and (2) decomposing the thus-formed 4,4 - dimethyl - m - dioxane, the by-products less volatile than water which are produced in step (1) and are dissolved in the aqueous phase are concentrated, e.g. by evaporation, and are then catalytically decomposed to yield further isoprene. Readily volatile or extractable substances may be removed from the aqueous phase before concentration, e.g. by distillation or extraction with the isobutene feed to step (1). The preferred decomposition catalyst is phosphoric acid on silicic acid particles used as a fluidized bed.
Patent GB-1298641-A (GB)
Title: Anti-ejection latch
IPC: G21C7/12
Filed: 1971-01-04
Abstract: 1298641 Ratchet mechanism COMBUSTION ENG Inc 4 Jan 1971 [5 Jan 1970] 319/71 Heading F2Q [Also in Division G6] A nuclear reactor control rod anti-ejection lock for use with magnetic jacking type control rod drives has a spring-pressed pawl 60 which ratchets to allow insertion of the control rod 12 but prevents ejection or withdrawal unless a latch mechanism of the drive is in latched position. The drive comprises two axially spaced, axially movable drive members 34, 36 around the rod 12 and solenoids A, C, E selectively alternately moving the members 34, 36 in two opposite directions along or with the rod 10. Each member 34, 36 carries a latch 38, 48 and an axially movable sleeve 40, 50, selectively operated by solenoids B, D, to operate the latch to connect or disconnect the rod and respective drive member. A push-rod 80, 82 connects each sleeve 40, 50 and the pawl 60 and disables the pawl when either sleeve 40, 50 is in position to latch the control rod and a drive member. Starting from the position shown in which all the solenoids are de-energized and the control rod 12 has dropped under gravity, and in which both moving members 34, 36 and both sleeves 40, 50 are in the lower position, in order to lift the control rod the solenoid D is first energized to lift sleeve 50 and force the latch 48 inwardly to grip the rod 12, also to raise push-rod 82 and disable the pawl 60. Solenoid C is then energized to lift the lower moving member 36 and the rod 12 latched thereto. Actuation of solenoid B follows to lift sleeve 40 and force the latch 38 into gripping relation with the rod 12. Both latches are now in gripping relation. Solenoid D is then de-energized to release the latch 48 and allow sleeve 50 to drop and solenoid C is de-energized. Solenoid A is then energized to raise the upper moving member 34 together with the rod 12 and solenoid E is energized to draw the lower moving member 36 down. Solenoid D is now energized so as again to activate the latch 48 and solenoid B is then deenergized to release the latch 38 and solenoids A and E are de-energized. Solenoid C is then energized to lift the lower moving member 36 and the rod 12 and begin another cycle. The control rod 12 is thus lifted in a step-by-step motion.
Patent GB-727832-A (GB)
Title: Improvements in or relating to frequency modulating arrangements for magnetron oscillators
IPC: H03C3/32
Filed: 1953-01-05
Abstract: 727,832. Magnetrons. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Jan. 5, 1953 [Jan. 4, 1952], No. 336/53. Class 39 (1). A frequency-modulating arrangement comprises a main oscillating magnetron B<SP>1</SP> of the type having tapered anode cavities (see Specification 704,979) and an auxiliary modulating magnetron B of the same type disposed coaxially with the oscillating magnetron within the same envelope L<SP>1</SP>. The invention is based upon the fact that if an impedance Z (in this case the impedance of the anode block of magnetron B) is placed between a conducting end wall Co of a resonant cavity and the remaining portion of the cavity, a virtual plane of zero impedance is produced in the remaining portion of the cavity. The position of this plane depends upon the value of Z, i.e. upon the space charge between the cathode and anode of magnetron B which in turn depends upon the voltage V between anode and cathode. Thus variation in the position of the zero impedance plane which acts as a tuning piston for the oscillating magnetron B<SP>1</SP> is produced by variation of V. The effect of inserting between the magnetrons a reactive obstacle in the form of an iris C<SP>1</SP> is to amplify the movement of the virtual zero-impedance plane and thus increase the frequency deviation of the modulated signal. The magnetrons B, B<SP>1</SP> are mounted within a conducting tube L<SP>1</SP> coupled to a wave-guide L by means of an iris C<SP>2</SP>. The magnetic fields may be produced by means of a permanent magnet, by a common field coil or by separate field coils N, N<SP>1</SP>.
Patent GB-605760-A (GB)
Title: Means and method for induction heating
IPC: H05B6/36
Filed: 1946-01-04
Abstract: 605,760. Induction heating. ELECTRIC FURNACE CO., Ltd. (Ohio Crankshaft Co.) Jan. 4, 1946, No. 344. [Class 39(iii)] A method of controlling known multihole induction heating coils comprises leaving one hole empty. Workpieces are loaded into positions A and B while C is left empty. Thus the effects of the ratio of the diameter of the work to the bore of the induction on the frequency of the oscillator tank circuit may be modified by providing additional holes adjacent to the work receiving hole. In a modified method the inductor 62 has a work receiving position 64 and an adjustable frequency and power acceptance position 66 comprising a slidable block 67 moved by a threaded rod 68 with an adjusting nut 71.
Patent GB-653492-A (GB)
Title: Improvements in power transmission mechanisms and in the application thereof to mechanical storage equipment
IPC: E04H6/30
Filed: 1946-01-04
Abstract: 653,492. Load-handling apparatus; handling and storing motor vehicles ; traversers. AUGER, H. Jan. 4, 1946, No. 364. [Classes 78 (iii), 78 (iv) and 104 (ii)] [Also in Groups XXII and XXIV] A mechanism for moving a load from one position of rest to another with low initial acceleration and final deceleration, and particularly applicable to handling and storing vehicles comprises a stationary rack 5, Fig. 1, on which a gear-wheel 6 is adapted to roll. The gear 6 is mounted upon a sliding carriage 3 on a guide 2 and is provided with an adjustable crank-pin 11 which is connected by a rod 12 to a driven or load member in the form of slide 4 on the guide 2. The crank-pin 11 moves on a cycloidal curve and the consequent velocity of the member 4 increases gradually from zero to a maximum and then decreases to zero again for one revolution of the gear 6, which is shown as driven by an electric motor 8 mounted upon the carriage 3. In a modified arrangement, Fig. 3, in order to provide a constant velocity over a considerable portion of the movement, two sprockets 21, 22 are provided on a carriage 18 and connected by an endless chain 23, the pins of which have lateral extensions 24 for engaging with the slots of a fixed rack 25. Pivoted to one of the pins 31 of the chain is a link 30 for driving a member 27 having rollers 28 for running along suitable guide-rails (not shown). With this arrangement, when the sprockets are driven by, for example, a suitable prime mover on the carriage 18, the chain 23 rolls along the rack 25 and the pin 31 traces out a cycloidal curve in moving from the bottom to the top of sprocket 21, during which time the member 27 is accelerated from rest. Whilst the pin 31 is moving along the top run of the chain path the velocity of member 27 remains constant but on moving from the top of sprocket 22 to the bottom the velocity falls to zero again. Whilst the pin 31 is in contact with the rack 25 its velocity and that of member 27 is zero. The mechanism of Fig. 3 adapted for moving loadcarrying platforms for storing vehicles is shown in Fig. 8 arranged in a pit below rails 39 for carrying a rank of separate platforms for each vehicle. The carriage 18 is reciprocated by an endless driving chain 41 connected thereto and driven from the shaft 43 of an electric motor, the reversals of which are suitably controlled. The driven member 27 of the mechanism is adapted to be coupled to and uncoupled from the platforms at appropriate positions corresponding to the limits of its reciprocation so that the rank can be advanced one platform at a time as desired. At the end of the rank the platforms are adapted to be moved transversely on to the end of an adjacent rank which moves in the opposite direction so that a circulation of the platforms can be obtained. Specifications 502,966, 502,967, 502,984, 513,923 and 519,126 are referred to in the Provisional Specification.
Patent GB-1263871-A (GB)
Title: Road traffic signal control system
IPC: G08G1/082
Filed: 1970-01-05
Abstract: 1,263,871. Road traffic signals. OMRON TATEISI ELECTRONICS CO. 5 Jan., 1970 [16 Jan., 1969; 23 Jan., 1969], No. 465/70. Heading G4Q. A control system for a ''parent'' intersestion 10 and an "associated" intersection 20 on a major street 1 comprises a traffic-actuated "parent" controller 13 controlling signal lights 11, 12 and an "associated" controller 23 controlling signal lights 21, 22. Normally, the controller 23 receives "association" signals from the controller 13 and controls its lights 21, 22 in accordance with those signals whereby the cycle of these lights is kept in correspondence with the cycle of the lights 11, 12 to promote a smooth traffic flow along the street 1. The controller 23 is provided with means which function automatically to continue the cycling of the lights 21, 22 should, through some fault, the "association" signals cease to be received by that controller. In the diagram of Fig. 2, the red, green and yellow light sequences are shown for the lights 11 in line 3, lights 12 in line 4, lights 21 in line 5 and lights 22 in line 6. Association signals S 1 , S 2  are inserted between lines 4 and 5 of the diagram. The association signal S 1  is produced by the controller 13 at the end of the green period 1G1 of the lights 11 to change the lights 21 from green to yellow. The second association signal S 2  is produced at the end of the green period 2G1 of the lights 12 causing the lights 22 to change from green to yellow. The means provided in the controller 23 for cycling the lights 21, 22 in the absence of the signals S 1  S 2  include adjustable means for presetting the green times 1G, 2G so that if the next signal S 1  or S 2  has not arrived within the time 1G or 2G the controller 23 breaks its association with the controller 13 and independently advances the signal cycle at the termination of the time 1G or 2G. Thus the green time 1G may be made longer by setting the green time 2G so that it terminates before the signal S 2  is produced. The signal lights 21, 22 may be offset relatively to the lights 11, 12 by delaying the signals S 1 , S 2 . The circuit of controller 23 is described with reference to Fig. 3 (not shown) and includes logic elements.
Patent GB-1453807-A (GB)
Title: Continuous form mailer with integral detachable insert  material and return envelope
IPC: B65D27/06
Filed: 1975-01-07
Abstract: 1453807 Envelope assemblies BURROUGHS CORP 7 Jan 1975 [24 Jan 1974] 511/75 Heading B6A Two superposed webs are provided with perforated and glued areas which define a plurality of separable envelope assemblies, each comprising a separable invoice portion 40, return stub portion 42 and return envelope 36, the latter including a sealing flap 54. The assemblies are provided in transversely spaced pairs across the webs, which webs have removable margins with transport perforations 16, and are tacked together by glue spots 60. Perforations 48 divide the invoice portion from the stub portion and offset lines of perforations 50, 52 divide the return envelope from the invoice and stub portions and provide the sealing flap 54. The flap bears adhesive 56 which may be covered with a protective tape 58. The three edges of the envelope remote from the flap are glued together. A coating 44 of transfer material, or a separate transfer sheet allows data to be marked on to the invoice and stub portions of the sealed assemblies.
Patent GB-1275908-A (GB)
Title: Improved press
Inventor: CADOGAN-RAWLINSON CHRISTOPHER
IPC: B30B1/32
Filed: 1969-06-09
Abstract: 1275908 Hydraulic presses; moulding EX. PRESS PLASTICS Ltd 9 June 1969 628/70 Divided out of 1275907 Headings B5A and B5F A press e.g. for cold-moulding reinforced plastics articles comprises a pair of press members 20, 24 and first and second actuating means arranged to operate in series and sequentially for bringing the members 20, 24 together and separating them. The first actuating means may be hand operated or may comprise an hydraulic actuator, cables or, as shown, screw jacks 23. The second actuating means comprises hydraulic actuators 22a, 22b mounted on cross members 25 supporting the upper press member 24. The ends of the rams of the actuators 22a, 22b carry plugs 26 adapted to be engaged by pneumatically operated latches (Fig. 3, not shown). A microswitch (29) operated by one of the plugs 26 energizes a pneumatic actuator (30) which operates the latches, and starts a timer (T) to control the operation.
Patent GB-468454-A (GB)
Title: Improvements in or relating to machines for sealing containers
IPC: B65B7/28
Filed: 1936-01-08
Abstract: 468,454. Labelling-machines. ATHERLEY, S. W., and DE ST. DALMAS & CO., Ltd., A. Jan. 8, 1936, No. 682. [Class 73] A machine for applying sealing tape round tins comprises a pair of jaws between which the tin is placed by hand and which are given a predetermined rotary movement relatively to the adhesive tape which is led thereto from a supply by hand and severed after sufficient to provide a slight overlap has been applied. One of the jaws 1 is mounted on a shaft 4 which is rotated by means of a spring-returned chain 13 engaging a sprocket thereon and operated by a pedal 15. The movement of the shaft is limited to slightly more than a complete revolution by stops on the chain engaging the base or, as shown, by the provision of a loose annular sleeve 17 having a radial projection 17b which engages a stop 19, and also provided with an arcuate slot engaged by a driving pin projecting from the face of the sprocket. The other jaw is removably carried on a shaft 20 which is moved, against the pressure of a spring 24, by a pedal 30. The jaws are replaceable and have recesses lined with rubber to take the tins. The tape is supplied from a reel 31 carried by a shaft 32 and a rubber covered roller 39 for pressing the tape is mounted on an arm 40. In a modification, the jaws do not rotate and the tape carrier revolves round the jaws, being operated by similar mechanism to that shown.
Patent GB-344130-A (GB)
Title: Improvements in or relating to electrical translating devices such as loud speakers
IPC: H04R11/00
Filed: 1930-01-08
Abstract: 344,130. Loud-speakers. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and OLIVER, D. A., of General Electric Co., Wembley, Middlesex. Jan. 8, 1930, No. 721. [Class 40 (iv).] Electric translating devices such as loud-speakers having a vibratory device comprising two or more elastic reed-like members of different natural frequencies, have elastic couplings between the reed-like members of such mass and elasticity as to improve the uniformity of the response. The Figure shows a reed 1, forming or carrying an armature for an electromagnet 6, and secured to a pillar 2 on the frame of a loud-speaker unit. A stiffer reed 3 of hollowed-out section is secured also to the pillar 2 and at its outer end is connected by a yoke 4 to a transverse spring 5 connected to the end of the reed 1. A screw and spring as shown enable the air gap to be adjusted, and a rod 7 passing through a central opening in the reed 3 connects the reed 1 to a cone or diaphragm.
Patent GB-822542-A (GB)
Title: Improvements in the preparation of luminescent materials
Inventor: ANDERSON JAMES THOMSON
IPC: C09K11/59
Filed: 1955-01-10
Abstract: 822,542. Luminescent materials. BRITISH THOMSON-HOUSTON CO. Ltd. Jan. 10, 1956 [Jan. 10, 1955], No. 728/56. Class 39(1). The silicate of a matrix metal barium, strontium or lithium, or a mixture of such silicates, for use in a luminescent material, is prepared by mixing a warm aqueous solution of the hydroxide of the matrix metal with a solution of ethyl silicate in ethyl alcohol or pure methylated spirit and separating the precipitate of the silicate from the liquid. The metal hydroxide solution may contain ammonium hydroxide. After optional firing, the barium silicate so prepared is fired again with Pbo and BaF 2  at 1120‹C., ground, mixed intimately with BaCl 2 , 2H 2 O and refired. Zinc barium silicate activated by manganese is similarly prepared by mixing the silicate precipitate with 2nO, SiO2 and MnCl 2 , 4H 2 O. Specifications 646,575 and 664,822 are referred to.
Patent GB-726426-A (GB)
Title: Improvements in or relating to spools for packing materials in strip form
IPC: B65H75/14
Filed: 1953-01-09
Abstract: 726,426. Bobbins. ROHM, R. Jan. 9, 1953 [Aug. 5, 1952], No. 742/53. Class 120 (3). A spool for carrying convolutely wound flexible strip material comprises a hollow tubular core on each end of which is a lateral limiting plate an inwardly directed tubular projection such as a flange on which is secured to the internal surface of the core with an adhesive, the depth of the projection being less than half the width of the core. Materials of which the spool components may be composed include cardboard, wood, synthetic resin materials, and ductile or malleable metals such as aluminium or sheet iron.
Patent GB-705064-A (GB)
Title: Improvements in and connected with looms
IPC: D03D41/00
Filed: 1951-01-11
Abstract: 705,064. Shuttleless looms. GENTILINI, A. Jan. 11, 1951 [Jan. 13, 1950], No. 786/51. Class 142(2) A loom comprises a drum made up of shedding plates 19 alternating with separator plates 18 having aligned notches 20 forming grooves along which weft inserting needles travel, one in each groove; the warp threads 2 pass under or over the weft threads according to whether they rest on a flat or lie across a notched corner of a shedding plate. The peripheral speed of the drum exceeds the take-up speed of the fabric, so that as the fabric leaves the drum, between guides 6, the weft is beaten up by the separator plates; beat-up may be assisted by eccentrically-mounted bars 4, 8 which press. on, the warp and fabric alternately, whereby the fabric is oscillated backwards and forwards on the drum. The weft inserting needles and the weft spools 15 revolve with the drum. The weft thread wedges in a narrow part of the eye, Fig. 7, during the insertion stroke of a needle and its end is held, whilst the needle slides back along it, by a rubber wheel rolling against the end of the drum; when the needle emerges from the shed, the weft is cut between the needle and the fabric. The needles may be flexible tapes coiled on pulleys oscillated by rack and pinion mechanism; the separator plates 18 may overhang the notches 20, Fig. 6, to guide the needles 13.
Patent GB-1182831-A (GB)
Title: Improvements in and relating to Apparatus for Wrapping of Articles.
Inventor: NICHOLAS DONALD CAMERON
IPC: B65B9/02
Filed: 1967-01-06
Abstract: 1,182,831. Seaming non-metallic sheet material. BAKELITE XYLONITE Ltd. 13 March, 1968 [6 Jan., 1967], No. 872/67. Heading B5K. [Also in Division B8] Articles 1 are packaged by being pushed into a curtain formed by two joined thermoplastics webs fed from rolls 35, the webs being sealed on the side by bars 31, and transversely by welding and cutting bars 32. Retraction of the article pushing means actuates a switch (f), Fig. 2 (not shown), which causes the sealing bars 31 and 32 each to be brought together, there being a sufficient time delay for sealing before a further switch (g) is actuated to separate the bars. The upper bar 32 consists of two sealing bars 32a which seal the rear of one package and the front of the next and a severing bar 32b. The lower bar 31 can have suction apertures to locate the web positively and the side seal may be shorter than the package length to leave air escape passages. The sealing bars are on a framework moved by hydraulic cylinders 33, 34, and the package may finally be conveyed to a shrinking tunnel 36.
Patent GB-1504441-A (GB)
Title: Inhalation device
IPC: A61M15/00
Filed: 1976-01-09
Abstract: 1504441 Pocket type inhaler for powdered medicament administration SYNTEX PUERTO RICO INC 9 Jan 1976 [13 Jan 1975] 00881/76 Heading AST A pocket type inhaler for administering powdered medicament from an associated container comprises a housing having a passageway 18 terminating in an enlarged outlet chamber 16 that has a medicament container receiving side port 22. The passageway and side port are angled with respect to each other such that inhalation induced air flow through the passageway is caused to expel the container's contents. The passageway may be inclined to the axis of the housing and the latter is provided with means for opening the container if it is not to be opened prior to insertion. The passageway may have an enlarged entry chamber.
Patent GB-1453513-A (GB)
Title: Intramedullary rod
IPC: A61B17/72
Filed: 1974-01-08
Abstract: 1453513 Intramedullary rods SAMPSON CORP 8 Jan 1974 00892/74 Heading A5R An intramedullary rod in the form of a tube (10) is provided with longitudinally extending ribs 13 on its outer cylindrical surface, the ribs terminating at at least one end of the tube in cutting points or edges 14, and members 16 projecting axially beyond the points on edges, 14 and sloping downwardly and outwardly of the tube. Both ends of the tube may be provided with castellated configurations, and may have recessed bores 19 for the reception of an extractor. In another embodiment an extractor arrangement includes provision of a slot (20) (Fig. 3 not shown).