baber/WOPTO huggingface dataset:
Patent GB-340907-A (GB)
Title: Improvements in advertising apparatus of the movable panel type
IPC: G09F11/34
Filed: 1930-04-22
Abstract: 340,907. Moving signs. FARRIOLS, A., 5, Rue de Villaret de Joyeuse, Paris. April 22, 1930, No. 12446. Convention date, April 22, 1929. [Class 3 (i).] In signs comprising independent display panels which are transferred from an upper to a lower pack and vice versa and exposed to view at windows in a casing during transit, the transferring means comprise two vertical spindles 10 each having a continuous cam path in the form of crossed screw threads 11, 12 connected at top 13 and bottom 14. The spindles are rotated continuously by any means, such as a shaft 16 and bevel pinions 17,18. The panel carriers 7 have pivoted fingers 15 which ride in the threads and cause the carriers to reciprocate continuously. The panels a have trunnions 3 whereby they are picked up by front and rear notches on the carriers 7 from the bottom ends of upper and lower storage inclines 4, 5. The pitch of the threads 11, 12 may be smaller at the middle than at the ends, to effect a slower movement of the panels while behind the display windows.
Patent GB-734590-A (GB)
Title: Improvements in or relating to electric communication systems
IPC: H04J1/14
Filed: 1952-05-16
Abstract: 734,590. Automatic volume control. GENERAL ELECTRIC CO., Ltd., and LEY, D. A. July 1, 1953 [May 16, 1952], No. 12473/52. Class 40 (4). In a carrier telephone system, a pilot current injected in an audiofrequency part of the circuit and having a frequency just above the upper limit of the required audio band is used to effect volume control and the absence or presence of the pilot is used also for signalling purposes such as dialling. The system, Figs. 1 and 2, includes a compressor 5 and an expander 18, and the pilot current generated in an oscillator 8 is applied with the compressed audio signal to the input of a frequency-changer 6. A key 7 in the oscillator output enables the pilot to be used also for signalling purposes. The received signal selected by filter 15 is demodulated in frequency-changer 16 and applied to the gaincontrolled amplifier 17 and tone receiver 19 shown in detail in Fig. 3. The pilot signal in the input to transformer 22, after amplification in valves 31 and 25 is selected by tuned circuits in the output of a pilot amplifier 38 and the rectified output from the lower circuit controls the bias on valve 25. The time constant is determined by a condenser 26 and a resistor 27. The output of the upper circuit is applied to two grids of valve 53 to control a differential relay for signalling purposes. Specification 734,574 is referred to.
Patent GB-602253-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/48
Filed: 1945-05-17
Abstract: 602,253. Cathode-ray tubes. STANDARD TELEPHONES & CABLES, Ltd., and STOPPANI, F. W. May 17, 1945, No. 12474. [Class 39 (i)] The control electrode of an electron gun comprises two sleeves 1, 6, Fig. 3, one within the other, the outer sleeve having an apertured dome 7 projecting into an aperture 2 in the other, the correct separation between the sleeves being secured by an annular boss 5 outstanding from the inner sleeve and resting against the end of the outer sleeve. After assembly, the sleeves are spot-welded together by electrodes 9, 10 and the insulator 11, Fig. 1, carrying the cathode 14 is fixed within the inner sleeve by lugs 3, the pressure of the lugs being finally adjusted while observing the cathode position through observation holes 19, 20. The insulator 11 is in two parts joined by metal strips 12 and carrying the elongated cathode, with heaters 15 at the ends, in recesses.
Patent GB-884982-A (GB)
Title: Improved braking system
Inventor: BUTLER HENRY JAMES
IPC: B60T13/10
Filed: 1957-04-17
Abstract: 884,982. Disc brakes. DUNLOP RUBBER CO. Ltd. April 14, 1958 [April 17, 1957], No. 12501/57. Class 103 (1). A brake comprises a rotatable member 6 and an applying member 4 having limited angular movement in the direction of rotation of member 6, a bifurcated member 32 angularly movable with member 4, and a rocking lever 36 pivoted at 35 to member 32 so that lever 36 rotates in the same direction irrespective of the direction of rotation of member 4, the lever being associated with pedal 2 via means 42, 43, 47 to increase the effort applied by the pedal. Extensions 13 on one side of member 4 are secured to an annular boss 14 having a flange 19 loosely held between flanges 15 and 29 on the fixed axle housing 16, a ring 18 also being held between flanges 15 and 29, the flange 19 having recesses 22 loosely housing bosses 21 on ring 18, Fig. 3, by which the ring is secured to flange 15. The boss 14 has a slot 30 and a lip 31, an extension 34 of an arcuate plate 32 secured to ring 18 extends into slot 30 and carries pivot pin 35, the lever 36 having two recesses 37, 38 angularly disposed to each other and housing semi-circular actuators 39, 39a whose flat sides bear against opposite faces of the slot 30. On braking the movement of member 4 with the disc within the limits of slots 22, causes one side of slot 30 to engage actuator 39, or 39a to rotate lever 36 anti-clockwise, the lever 36 pulling a cable 42 to assist the pedal 2 in a stronger actuation of the master cylinder 1, the slots 22 being of such length that projection 21 on ring 18 never " bottom " even under the fiercest braking. The master cylinder may operate other wheel brakes 57 and the described brake may be a wheel brake or in the transmission of a vehicle. In a modification, Figs. 4 and 5, not shown, one of the housing extensions 13 carries a cam member which engages a recess in a fixed member, the lever 36 being secured to the cam which is rotated counter clockwise by movement of the housing on initial braking, the lever 36 rotating in a plane parallel to the disc. Specification 688,382 is referred to.
Patent GB-436359-A (GB)
Title: Improvements in and relating to sifting, straining or filtering apparatus
IPC: B01D33/073
Filed: 1935-04-26
Abstract: 436,359. Centrifugal machines. SEITZWERKE GES., Planigerstrasse, Bad-Kreuznach, and ADAMS, R., 111B, Salinenstrasse, Bad-Kreuznach, Rhineland, Germany. April 26, 1935, No. 12544. [Class 23] A machine for straining or filtering liquids has a number of sieve drums 5 to the outside of which the liquid is supplied from a passage 17, the filtrate being obtained from collecting vessels inside the drums. The rotary shaft 3 carries the plate 4 supporting the sieve drums 5 each of which has an external layer of filter material. The shaft 3 and the plate 4 are rotated rapidly by the belt 14, and each drum 5 is rotated slowly on its own axis by the belt 12 and the sleeve 9. A box 15 for the supply of material is placed against the outer wall of each drum, and a collecting vessel 22 is placed inside each drum and is in communication with the trough 26. A roller 30 holds each drum closely to its box 15. The dye or other liquid for filtering is drawn from the reservoir 20 by the pump 19, and is conveyed by the conduit 17 in the shaft 3 to each box 15. It is forced centrifugally through the drum walls to the vessels 22 from which it passes to the trough 26 and the outlet 27. The particles collected by the filters are thrown off centrifugally to the cowl 2 as the drums revolve, and they pass through the outlet 28 back to the reservoir 20. A recess 31 in the internal upper edge of each drum permits the drum to move slightly against its roller 30 so that collected particles can be discharged from the boxes 15. A recess 32 may be provided on the outside of each drum ; this collects solids as it passes across the box 15 and discharges them into the casing.
Patent GB-652475-A (GB)
Title: Improvements in and relating to toy crackers or bonbons
IPC: A63H37/00
Filed: 1948-05-07
Abstract: 652,475. Bonbon crackers. HAWKINS, S. H. May 7, 1948, No. 12558. [Class 132 (i)] A toy cracker comprises a carton or container a which is associated with a strip d, carrying an explosive cap or firework, the ends of the strip being attached to the two parts of a wish bane member el, e<SP>2</SP>. The container a may be wrapped in a sheath b encircled by a band c to which the strip d is attached. On separating the limbs e<SP>1</SP>, e<SP>2</SP> they break apart exploding the cap or firework and releasing the carton a.
Patent GB-663418-A (GB)
Title: Manufacture of substituted coumarans and dihydrofurochromones
Inventor: BAXTER RICHARD ALLEN
IPC: C07D493/04
Filed: 1948-05-11
Abstract: Dihydrofurochromones of the general formula IV in which R represents a lower alkyl group are made by the following series of reactions <FORM:0663418/IV (b)/1> The 6-hydroxy-5-acetylcoumaran II is prepared (1) by reacting 6-hydroxycoumaran with acetonitrile according to the Hoesch reaction, (2) by reacting 6-hydroxycoumaran with an acetylating agent, e.g. acetyl chloride, in the presence of a condensing agent such as aluminium chloride, or (3) by subjecting 6-acetoxycoumaran to the Fries reaction, i.e. by treatment with aluminium chloride in the presence of dry nitrobenzene.  The 6-hydroxy-5-acetylcoumaran is then submitted to the Claisen reaction using an ester of the acid R-COOH to give the 6-hydroxy-5-b -ketoacylcoumaran III which is cyclo-dehydrated, e.g. by treatment with sulphuric or hydrochloric acid dissolved in alcohol or acetic acid, to yield the dihydrofurochromone IV. Examples are given in which R in the formul  is methyl, ethyl or propyl.
Patent GB-499090-A (GB)
Title: Device for receiving written matter and graphs
IPC: B42F17/32
Filed: 1938-04-28
Abstract: 499,090. Charts. WESTERICH, H. E. T., and WESTERICH, F. O. E., (trading as SCHACHT & WESTERICH). April 28, 1938, No. 12711. Convention date, April 30, 1937. [Class 146 (ii)] A device adapted to receive written matter or graphs comprises two or more superposed relatively slidable writing or drawing surfaces each built up of strips, which are so mounted that either set of strips can be brought wholly or partially in front of the other, in order to display the matter carried thereon. The writing-surfaces are mounted in a frame 3, Figs. 5 and 6, having at one side an abutment plate 2, Figs. 1 and 2, to which is attached one end of a backing-sheet 5 carrying a number of paper &c. strips 4, which are attached to the backing-sheet at one edge and partially overlap one another. The frame also contains a slide 6, which has a limited movement between the abutment plate 2 and the opposite side of the frame. The slide carries a similar series of overlapping strips 8, which are attached thereto only at their upper and lower ends. Each of the two sets of strips forms a complete writing- surface. The strips 4 may be ruled in columns to receive numerals, and the strips 8 may be ruled in squares to receive corresponding graphs. The strips 4 are passed through the slits between the strips 8, and, by movement of the slide, the strips 8 can be brought wholly or partially in front of the strips 4, or can be hidden behind them.
Patent GB-1466161-A (GB)
Title: Method and apparatus for video signal processing
IPC: H04N5/21
Filed: 1974-03-21
Abstract: 1466161 Video signal noise component elimination NIHON DENSHI KK 21 March 1974 [27 March 1973] 12743/74 Heading H4F A noise component is eliminated from a pulsed video signal, e.g. pulse C is eliminated from the video pulse train of Fig. 3, by detecting when the pulse height difference between successive video signal pulses exceeds a predetermined value twice in succession, e.g. between pulses B and C and between pulses C and D. The noise pulse C may be replaced by the average of the proceeding pair of pulses A and B or just by the preceding pulse B. In a first embodiment a pulsed video signal, Fig. 3, from a scanning electron microscope (derived directly by detecting the secondary electrons emitted from a specimen or derived by scanning a photograph of the specimen image produced by the scanning electron microscope) is fed to input T 1  of the circuit shown in Fig. 4, the processed output at T 2  being displayed on a synchronously scanned CRT. Successive signal pulses are averaged F 1  and fed via gate G1 and switching circuit S to output T 2 . If the pulse height difference between successive pulses exceeds a predetermined value, comparator Cl produces an output which closes gate G1 and opens gate G2 so that the output of memory M 2 , i.e. (A+B)/2, is fed to output T 2 . If the next pair of compared pulses, e.g. C and D, also cause comparator C1 to produce an output then signal generator P generates a signal which causes circuit S to pass its other input I 2  to output T 2 , this other input receiving from circuit F 2  the average (A+B)/2 from memory M 3  and pulse D direct from the input T 1 . A sudden variation in detected pulse signal as indicated at V-Z is correctly displayed since only one output is produced from comparator C1 when pulses W and X are compared, i.e. the average of V and W is displayed twice. In a second embodiment, Fig. 4, which again operates gates G1 and G2, the average of pulses A and B is displayed three times to eliminate pulse C. The averaging circuit F 1  may be omitted with the input T 1  being directly connected to gate G1 so that pulse B is displayed three times.
Patent GB-543332-A (GB)
Title: Improvements in volume compressor and/or volume expander systems for radio and like systems
IPC: H03G7/02
Filed: 1940-08-08
Abstract: 543,332. Volume control. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and JEFFERSON, H. Aug. 8, 1940, No. 12749. [Class 40 (iv)] [Also in Group XL] An amplifier which compresses or expands volume in accordance with current or voltage derived from a controlling stage is arranged so that the levels at which the control is effective and the amount of compression or expansion are variable. The gain of the amplifier in the controlling stage, the delay bias of the detector element, and the proportion of the rectified output used are made adjustable. Fig. 3 shows a compressor in which gain control is adjusted by potentiometer P2 and the delay bias by potentiometer P1 while potentiometer P3 determines the proportion of the output applied as variable bias to the push-pull amplifier V1, V2. Some of the controls may not be freely variable but be pre-set by the factory to give high or low-level of compression or limiting action by a three-position switch. Negative feed-back as shown by resistances R10, R11 and associated blocking condensers C10, C11, or by cross connection from the anode of the valve V3 to the grid of the valve V2 and similarly between valves V1, V4 reduces the distortion introduced. The time constant of the control may provide quick action and quick release after an impulse but slow relapse after a sustained overload by modification of the circuit of the rectifiers V6, V7 as shown in Fig. 4. In this arrangement the charging period depends on the rectifier impedance and the condenser CA, but in'a longer time condenser CB is also charged, the discharge time then depending on CB which is large relative to CA and resistances RA, RB instead of only on the discharge time for condenser CA. The controlled signal stage instead of being a variable-mu amplifier may be copper oxide elements or elements sold under the Registered Trade Marks " Thyrite," "Atmite " or "Metrosil." Reference has been directed by the Comptroller to Specification 545,401, [Group XXXVI].
Patent GB-390335-A (GB)
Title: Improved photographic developing apparatus
IPC: G03D3/10
Filed: 1932-05-04
Abstract: 390,335. Photographic developing- apparatus. DYE, G. M., 1006, Lyndale North, Minneapolis, Minnesota, U.S.A. May 4, 1932, No. 12864. [Class 98 (ii).] Apparatus for the development of lengths of film, plates, &c, comprises a series of liquid containers through which the films, suspended from bars, are traversed by a pair of side chains, transfer of films from one container to the next being effected by side rails suspended from chains. As shown, the films are suspended by clips from bars 114 and held vertically by weights 119, and the bars are placed in succession on pairs of side chains 27 running in channel irons 21 above a series of similar containers 19, 20. A pair of rails 36, suspended from chains 40, carry spaced members 36b adapted to engage the rear bar 114 in each container to lift and transfer such bar to the next container. The chains 40 are driven from a motor 61 through a belt 59, worm gear 54, shaft 51, and chains 47. As the rails descend, the bars 114 are guided into position over the next container by fixed cams 26. During the rearward movement of the rails, rollers 36a engage levers 34 connected by adjustable links 35 to levers 32 which advance the chains 27 through pawl members 31, 30. The apparatus is housed at one end of a room and is screened from light by sliding partitions 73, 89. The partition 89 is suspended by chains 91 connected to the rails 36 and is raised, as the rails are lowered, to permit of the passage of the last bar 114. As the rails again rise, the bar is moved rearwardly by cam guides 86a and the partition 73 is lowered by gravity owing to the engagement of the rails with brackets 82 on counterweights 80 connected to the partition by chains 75 passing over pulleys 76 carried by brackets 77 on the levers 32. Upon the next lowering movement of the rails 36, the bar 114 is guided by cam surfaces 72 on to a conveyer 102 which carries the films beneath a drying fan 113. The conveyer 102 comprises side chains which are moved intermittently by pawls 103 actuated from the rails 36 through chains 106 and levers 104. At the forward end of the apparatus, brackets 25 are provided, furnished with upwardly-projecting arms 25a to facilitate loading of the bars ; and a box-like guard member 15 is provided to protect the films from contact with liquid from the containers 19. The containers 19 are disposed within a tank 18 through which attemperating liquid may be circulated.
Patent GB-663611-A (GB)
Title: Improvements in or relating to the production of ultra-high frequency energy of desired frequency by electron discharge apparatus
IPC: G01S7/36
Filed: 1942-12-04
Abstract: 663,611. Velocity-modulated tubes. SPERRY CORPORATION. Dec. 4, 1942, No. 12868/44. Divided out of 648,881, [Group XL (c)] [A Specification was laid open to inspection under Sect. 91 of the Acts, July 30, 1946.] Class 39 (i). [Also in Group XL (c)] In a transmitter-receiver system (see Group XL (c)) a frequency f is fed to the buncher resonator 257 of a klystron and at the same time the cathode potential is modulated at the much lower frequency 15 Mc/s. from source 268. The output in buncher resonator 258 contains products of the form f + 15, f + 30, &c. Specifications 523,712, 530,869, [Group XXXVII], 531,067, 648,881 and 670,551, [both in Group XL (c)], are referred to.
Patent GB-1386096-A (GB)
Title: Articles having arcuate perimeter regions
IPC: B65C9/06
Filed: 1971-05-04
Abstract: 1386096 Orienting METAL BOX CO Ltd 28 April 1972 [4 May 1971] 12962/71 Headings B8S and B8D A method of orientating each of a succession of cylindrical or like articles 1, e.g. cans having an arcuate peripheral portion, comprises providing each article 1, with an indentation in its arcuate perimeter in a predetermined angular position about the axis of the perimeter relative to a longitudinal seam on the perimeter of the article and causing the indentation which extends transversely from the seam to be engaged by a pawl 5 on a reciprocating device 4 which rotates the article 1 about its said axis until a predetermined orientation is reached, when an operation can be performed on the article. The pawl 5 is pivotally mounted on the device 4 and is spring biased towards the article, the device 4 incorporating a shock absorbing spring 11 which abuts a flange 13 having part of a component to which the reciprocating movement s applied. The device finally orientates articles which have been roughly orientated to positions in which the indentations lie within the stroke of reciprocation of the device. In another embodiment, the articles are each rotated into final orientation by a servomotor responding to a signal resulting from the pawl engaging the indentation.
Patent GB-1168965-A (GB)
Title: Method of Recording Information on a Photochromic Plate
IPC: G11C13/04
Filed: 1968-03-18
Abstract: 1,168,965. Uses of photochromines. NATIONAL CASH REGISTER CO. 18 March, 1968 [30 March, 1967], No. 12975/68. Heading C4S. [Also in Division H1] Information is recorded on a photochromic plate containing at least one photochromic spiropyran compound by uniformly exposing the plate to ultra-violet light to change the compound to its coloured form and then changing the compound back to its colourless form in selected areas of the plate by selectively exposing the said areas to a laser beam having a wavelength longer than that of blue. The spiropyran compound specified is 1:3:3- trimethylindoline - 5<SP>1 </SP>- bromo - 6<SP>1</SP> - methoxy- 81 - nitrobenzopyrylospiran. The selective exposure may be by mask or by deflecting the recording beam, and in a device (see Fig.) which may be used for large-scale display, a laser beam 21 from source 20 and controlled by shutter 23 impinges upon the u/v-exposed photochromic plate 28. The chopper 26 pulses the laser beam and the image at 28 is viewed by the lenses 29 to 31 and television system 32.
Patent GB-1356098-A (GB)
Title: Cringle assembly
IPC: B63H9/06
Filed: 1973-03-19
Abstract: 1356098 Eyelets WILLIAM ADAMS & CO Ltd 19 March 1973 12989/73 Heading F2H An eyelet for a sail comprises two metal rings 6, e.g. of aluminium bronze, to be placed one on either side of the sail 11 about a hole 15, each ring having pins 8 on one surface 7 to penetrate the said fabric and an annular recess 13 on the other face 9 to house an "0" ring 14, and a metal sleeve 1, e.g. of stainless steel, which is a light friction fit in the rings 6 and in use is swaged over the rings 6 to substantially cover their faces 9 and clamp the sail between the rings, the sleeve bore having a parallel middle section 5 and tapered outer sections 4 which increase in diameter towards the sleeve ends 3. As made, each ring 6 has a thin internal flange 12. The annular recess 13 extends over about half the width of the face 9.
Patent GB-1220948-A (GB)
Title: Improvements relating to shuttles for looms
IPC: D03J5/00
Filed: 1968-03-18
Abstract: 1,220,948. Shuttles and shuttle swells. "METAPIC" S.A. HOLDING LUXEMBOURGEOISE. 18 March, 1968 [19 Sept., 1967], No. 13068/68. Heading D1E. A shuttle body 1 has part-cylindrical shuttle tips 4, the axis of each lip being perpendicular to the axis of the shuttle body and parallel to its bottom, the length of each surface 4 being greater than half the width of the body 1. The side of the shuttle which engages the swell has a strip 18 of friction material fastened thereto and the swell comprises a friction wall 21, Fig. 8, adapted to cooperate with the strip 18 and provided with cooling fins 22.