baber/WOPTO huggingface dataset:
Patent GB-1161021-A (GB)
Title: Colour Television Receiver
IPC: H04N11/22
Filed: 1966-08-22
Abstract: 1,161,021. Colour television. GENERAL CORP. 22 Aug., 1966 [26 Aug., 1965 (3)], No. 37538/66. Heading H4F. In a colour television receiver operating to reproduce colours line sequentially provision is made to supply incoming signal information both directly and with a delay of one line scanning interval whereby information relating to a particular elemental picture area may be displayed in the line appropriate to the area and also in the next adjacent line. It is stated that the invention may be applied to P.A.L. and S.E.C.A.M. (Registered Trade Mark) systems, but it is described in detail only as applied to the N.T.S.C. system where the chrominance signal is demodulated at phase angles differing by 120 degrees in successive line intervals so as to produce red, green and blue colour-difference signals in a line sequence for application to a beam switched cathode-ray tube. In accordance with the invention the chrominance signal channel is arranged as shown in Fig. 13 where the output from band-pass amplifier 32 is applied directly to a first demodulator 33 and via a one-line-duration delay circuit to a second demodulator 35. The sub-carrier demodulation signal is applied to the two demodulators in the same phase and their outputs are combined in a matrix circuit 36 for application to the cathode-ray tube via amplifier 37. The effect of the invention when receiving different colours and its advantages over the prior art (i.e. simple line sequential operation) are explained with reference to Figs. 1-12 (not shown). For example, when an elemental area (i.e. an area only one line wide) of yellow is received during the reproduction of a line in red, in the prior art only the red content of the yellow light is reproduced. With the invention, however, the green content is also reproduced in the next adjacent (green) line by the delayed signal which is applied to the second demodulator. The two adjacent lines integrate visually to reproduce yellow. A similar arrangement with a one line delay circuit may be incorporated in the luminance signal channel, Fig. 15 (not shown). This has the advantage of removing colour effects during monochrome reception. A white elemental area occurring during a red line is produced in red by the prior art, but in less offensive red plus green (= yellow) in adjacent lines by the present invention. The luminance and chrominance circuits with delay may be combined, Fig. 21 (not shown). In this arrangement the delay circuit is placed after the second demodulator which is caused to operate 120 degrees in advance of the first demodulator. A complete receiver is described (in block diagram form) with reference to Fig. 14 (not shown).
Patent GB-375590-A (GB)
Abstract: 375,590. Closed solid fuel stoves. PORTWAY, C. and FRANKLIN, M., (trading as PORTWAY & SON, C.), Tortoise Stove Works, Halstead, Essex, and SMITH, P. H., 82, Mark Lane, London. July 30, 1931, No. 21804. [Class 126.] A closed heating stove consuming small fuel comprises a fuel hopper 10 delivering to a flat grate 13 inclined substantially at the angle of repose of the fuel, means to admit preheated air to the lower part of the fuel at a point above the hearthplate 15, and a thermostaticallycontrolled valve 35 which admits air to the flue when the temperature of the stove rises above a predetermined maximum. In the stove shown, the hopper 10 is supported by a flange 9 resting on a flange 8 on the stove body, and is provided with a lid 22 having an asbestos sealing-ring 23 and an air admission opening controlled by a revoluble plate 25. Gases accumulating in the hopper pass by a pipe 28 having a hood 29 over the upper end to a channel 27 formed at the front of the hopper, and are delivered above the fire. The front wall 12 of the throat of the hopper is curved to substantially the inclination of the grate 13, which is formed of individually removable bars held in recesses in a rectangular frame. A plate 17 arranged above the hearth-plate 15 forms with it a passage 18 from which air is delivered to the bottom of the fuel in a pre, heated state. The plate 15 may be drawn forward to dump the ashes. Apertures 21 are formed in the rear wall of the hopper. The lower portion of skirt of the hopper forms the side walls of the fire space, which are provided with studs 39 forming supports for a slice. The pivoted check-draught valve is operated by a bimetallic strip 30 engaging a collar 32 adjustably mounted on a screwed spindle 34.
Patent GB-1155456-A (GB)
Title: Scrambling of Digital Data Signal Patterns
IPC: H04L25/03
Filed: 1966-08-23
Abstract: 1,155,456. Digital transmission systems. WESTERN ELECTRIC CO. Inc. 23 Aug., 1966 [25 Aug., 1965], No. 37670/66. Heading H4P. A binary transmission system comprises a shift register fed by the transmitted data. Two of the register stages feed an exclusive-OR circuit which delivers a cipher key signal. The key signal is mixed with input binary data in a second exclusive-OR circuit, thereby to produce the ciphered data for transmission. The reverse process takes plaec at the receiver. In order to prevent the transmission of a long all zero or all one bit sequence, or of a sequence 10101... , gating arrangements are provided for detecting such sequences in the register and for generating a pulse which alters the bit state of the cipher key, thus ensuring that the detected sequence has a bit length no longer than that of the register. Suppression of long all one and all zero sequences prevents loss of synchronism of the receiver clock.
Patent GB-1025233-A (GB)
Title: Improvements in looms
IPC: D03C7/00
Filed: 1962-10-05
Abstract: A cut-weft fabric has a selvedge that is lenowoven with a standard thread 11, which is always shed to one face of the fabric, and a pair of crossing threads 13, 14 which are always shed to the other face and which are woven under such tension that they "uncross" and, for each pick, alternate threads 13, 14 pass around the selvedge to the other face of the fabric, tucking in the weft end 19a and causing the threads 13, 14 to assume a plain woven formation gripping the tucked-in weft end.  Two pairs of threads 13, 14 may be used, either separated or together.  Oppositely moving heald frames 38, 40 have rods 31, 32 on which slide carriers 48, 49 spring-biased to stay apart.  The carrier 48 has standard thread guides 59 and the carrier 49 has the leno thread guides 67 which are pivoted on rods 68 and are moved by rods 72 attached to rockers 75.  In the Fig. 4 (not shown) position the guide 59 is lowered between the eyes of the guide 67 and the main shed is open.  As the shed closes the carrier 48 rises with the frame 38 and the carrier 49 lowers with the frame 40.  When the shed is closed the carriers 48, 48 are then maximum distance apart and the guide 59 is above the guide 75.  Continued ascent of the frame 38 then pivots the rocker 75, the leno threads cross, the carriers 49 rises with the frame 38, the carrier 48 descends with the frame 40 so that for the next shed the standard thread guide is again lowered between the reversed leno thread guide 75.
Patent GB-523314-A (GB)
Title: Improvements in hose clips
IPC: F16L33/08
Filed: 1938-12-30
Abstract: 523,314. Band-clips. ROBINSON, L. Dec. 30, 1938, No. 37892. [Class 44] In a hose clip of the kind described in Specifications 203,262 and 293,279, [both in Class 44], having a worm mounted in a housing secured to one end of the band and adapted to engage teeth on the other end of the band, the lower wall of the housing is formed by, or situated above, the end of the band to which it is secured, to provide a smooth and uninterrupted surface in contact with the pipe to which the clip is applied. As shown in Figs, 1 and 2, the side walls of a housing 3 for the worm 4 is secured at A to the edges of the band 1a, Fig. 3 shows a form in which the housing has inward extensions 3a which are secured on top of band 1a. A housing of rectangular cross-section is also described. Specifications 523,313, 523,315, and 523,316 also are referred to.
Patent GB-1135933-A (GB)
Title: Improvements in or relating to engine cooling and passenger compartment heating apparatus for motor vehicles
Inventor: SHEPPARD RAYMOND EDWIN GEORGE
IPC: B60H1/00
Filed: 1965-09-07
Abstract: 1,135,933. Ventilating vehicles. SMITH'S INDUSTRIES Ltd. 25 Aug., 1966 [7 Sept., 1965], No. 38137/65. Heading F4V. A motor vehicle engine cooling and passenger compartment heating apparatus comprises a radiator matrix 7 which carries the engine coolant liquid and is the only matrix provided to cool the engine coolant, and over which air is blown by an engine-driven fan 6, some air also by-passing the radiator through a passage 10. The air passing over the heat-exchanger 7 is divided into two streams by a movable wall 3, one stream entering a chamber 11 where it mixes with the by-passed air, and the other stream entering a chamber 8 which communicates with the atmosphere through ducts 14, 74 which are controlled by linked dampers 15, 16. The dampers 15, 16 are biased to a closed position and are held there by the pin 20 of a wax thermostat 19 which releases the dampers at a preselected engine coolant temperature. Chamber 8 also communicates with chamber 11 through an air pressure controlled valve 30 in wall 3. A valve 33 controls the flow of bypassed air into chamber 11 in conjunction with the position of the wall 3. In operation, all the air from fan 6 flows initially into chamber 11 via passage 10 or through valve 30, until the wax in thermostat 19 melts, when the dampers 15, 16 open. The temperature of the air flow into the compartment can then be adjusted by moving the wall 3 and valve 33, and the rate of air flow is kept constant by a valve 42 controlled by a blade spring 45 of non-linear force-displacement characteristic set by the shape of the member 46. The air flows from the valve 42 into distribution means (Fig. 2) which incorporates a demister outlet and a space heating outlet.
Patent GB-1426840-A (GB)
Title: Three dimensional patterning of fabric
IPC: D06M23/14
Filed: 1973-08-13
Abstract: 1426840 Laminated fabric K M BERG 13 Aug 1973 [11 Aug 1972] 38177/73 Heading B5N A fabric is given a three-dimensional patterning by applying thereto a plastics film having a pattern of openings or slits therein and subjecting the fabric and applied film to heat and pressure thereby to bond them together and to cause the film to shrink thus imparting an uneven surface to the fabric/film laminate. The film may be polyethylene, polypropylene, polyethylene/P.V.C. mixture, or some other plastics having a surface layer of polyethylene, and may be provided with the openings by punching or slitting, the slits extending into openings when the film shrinks. Bonding may be effected in a press at c. 180 C. under a pressure of 0À03- 4À0 kg/cm.<SP>2</SP> for 10 sec. to 5 min., the base of the press being of an elastic material to allow bulges to be formed in the laminate. When the upper press surface is of metal, siliconized paper or P.T.F.E. or regenerated cellulose film may be inserted between the press surface and plastics film.
Patent GB-1476855-A (GB)
Title: Worm press for processing synthetic plastics materials
IPC: B29C48/525
Filed: 1975-09-17
Abstract: 1476855 Intermeshing worm extruder KRAUSS-MAFFEI AG 17 Sept 1975 [28 Sept 1974] 38290/75 Heading BIC [Also in Divisions B4 and B5] A worm press for thermoplastics, comprises at least two intermeshing worms which rotate in opposite directions and taper conically, from a feed inlet to the worms towards an outlet 6 of the press, the thread 13, 14, of each worm engaging within the channel 12, 11, of the other worm to a depth 15 which, along the entire length and circumference of each worm, is in a constant ratio to the external diameter of the worm at the location of engagement. The depth of the worm channels 11, 12, also decreases along the length of the worms. Preferably, the depth of engagement is 15% to 25% of the worm external diameter, being 18% to 20% for rigid P.V.C. The worms are housed within a barrel 1, providing an inlet for the material in the worm regions 2a, 3a, and an opening for degasification in the regions 2c, 3c.
Patent GB-1374137-A (GB)
Title: Apparatus for holding a workpiece for a polishing operation
IPC: B23Q3/08
Filed: 1972-08-17
Abstract: 1374137 Vacuum work-holders CRANE PACKING CO 17 Aug 1972 [29 Nov 1971] 38442/72 Heading B3D A fixture for holding a workpiece, such as a silicon wafer, while the surface is being abraded, comprises a rigid support having, a surface of predetermined contour against which the workpiece is to be held, the surface of the support being relieved over from 75% to 85% of its surface area contacted by the workpiece, and means connecting the relieved portion to a source of vacuum. The fixture 10 is supported by a bearing 11 on a spindle 12 carried by an arm 13 above the polishing surface 16 of a rotating disc 14. A recess 17 in the fixture is connected to the vacuum souroe and receives a disc 18. A plurality of arrays of concentric grooves 22 are formed in the face of the disc, each array being connected by a passage 26 to a relieved part 19 of the recess 17 so that the vacuum acts in the concentric grooves to hold a wafer thereagainst. The grooves of each array are V-shaped with a flat-band 23 for engagement by the wafer, the groovesbeing interconnected by radial grooves (24, 25, Fig. 2, not shown). The landshave a width of from 0À008 in. to 0À012 in and the width of the grooves varies from 0À050 in. to 0À054 in. A confining ring 28 of palytetrafluoroethylene is mounted in a recess around each array to assist in locating the wafers on thefixture and to preventlateral movement of the wafers if the vacuum source should fail.
Patent GB-1066621-A (GB)
Title: Improvements in or relating to communication systems
IPC: H04B17/40
Filed: 1964-09-22
Abstract: 1,066,621. Repeater systems. SIEMENS A.G. Sept. 22, 1964 [Sept. 23, 1963], No. 38521/64. Heading H4R. A four-wire circuit between a pair of attended stations, e.g. HV1 and HV2, is provided with a number of repeaters arranged in two groups; a first group, e.g. Via, V2a ... Vna, associated with and powered by one attended station i.e. HV1 and the second group, e.g. V1b, V2b . . . Vnb, associated with and powered by a second attended station i.e. HV2. Each repeater includes a band-pass filter, e.g. F1, F2 ... Fn, connecting the go and return paths on the side of the repeater distant from the associated attended station so that test signals of the appropriate frequency transmitted from the attended signal will be returned via the band-pass filter and so allow transmission monitoring of the intermediate repeaters. The filters F1, F2 &c. may be of different frequency pass band so that a test signal of appropriate frequency will test specific repeaters or the filters may be similar and a pulse-type test signal may be applied, the response of different repeaters being distinguished by reference to the different transit times through the different repeaters. The junction between repeaters Vna and Vnb is provided, e.g., with a transformer to isolate the two groups of repeaters as far as the power supplies are concerned, and also with a filter to isolate a test signal applied to one group from the repeaters of the second group. The repeaters may be of standard construction utilizing plugin band-pass filters; and the separating filter and power supply isolator may be contained in a separate plug-in unit.
Patent GB-1375625-A (GB)
IPC: A47J37/08
Filed: 1972-08-18
Abstract: 1375625 Toasters J B E PAASKESEN 18 Aug 1972 [31 Aug 1971] 38534/72 Heading A4D A toaster comprises a housing including a front wall 1, a rear wall 2, end-walls 3, and top wall 4, two apertured walls 6,6' in the form of grids extending vertically opposite one another, within the housing to define therebetween a vertical toasting compartment 32, electric heating coils 33 for radiating heat into the toasting compartment through the apertures of the apertured walls, and a toasting compartment bottom plate 7 pivotally mounted on a hinge pin 8 for movement between a first position in which it closes the lower end of the compartment and a second position in which it allows toasted bread to slide out through the bottom of the compartment, the toaster being characterized by the provision of a mechanism which moves the apertured walls upwardly to dislodge any adhered toast when the bottom plate 7 is moved from said first position to said second position. As shown, the bottom plate 7 carries a a pin 27 which is connected by a lost-motion coupling to a vertically-movable tie rod 21. The tie rod has a horizontal slot 22 in which engage crank throws 20 of crank-shafts 17 having cranked centre sections 16 engaging bights 15 of the apertured walls. The apertured walls are mounted for vertical movement in frames formed of channels 13, 13' and vertical members 14. The frames are loosely mounted in the housing. A separate pivotally-mounted bottom member 38 rests on the bottom plate 7. Toasted bread may be stored in the toaster base and kept warm by heat radiated through apertures 40. The top wall 4 has an aperture 31. A cover 5 may be coupled to the bottom plate 7 so as to raise the bottom plate when the cover is lifted. The toaster may be provided with a timing device for determining the duration of the toasting period.
Patent GB-1056713-A (GB)
Title: Moving scale instrument
Inventor: MONGAR WILLIAM CHARLES
IPC: G01D11/28
Filed: 1964-09-22
Abstract: 1, 056,713. Indicating-apparatus. SPERRY GYROSCOPE CO. Ltd. Sept. 22, 1965 [Sept. 22, 1964], No. 38568/64. Heading G1J. The moving scale of a compass repeater comprises an endless flexible tape 17 of plastics material guided by two sets of five aluminium alloy pulleys 12 to 16 and 12<SP>1</SP> to 16<SP>1</SP> to form two sets of runs respectively adjacent opposite sides of a base 11 and linked by two runs adjacent one end whereby the area between the two sets is free to house an A. C. motor 22, amplifier 24 and fine and coarse synchros 21, 20. A master compass applies signals to the stators of the synchros whose rotors apply error signals through the amplifier 24 to the motor 22. The motor 22 rotates the rotor of the coarse synchro and also gears which drive the rotor of the fine synchro and the pulley 16 which is toothed to drive the tape 17. The arrangement is thus a null-seeking servo system wherein the tape and rotors are driven until the error signal becomes zero. A switch is provided to disconnect the master compass and apply a voltage to set the repeater to read zero, whereupon the pulley 16 can be locked, the main fuse removed and the tape renewed. A limb 26 of an "L" section sheet of transparent plastics material is inserted between the tape runs 12, 16 and 15, 13, its back surface is sandblasted so that when edge lit from light sources, transparent graduation marks on the front run of tape can be read against a stationary indicator. In another embodiment the indicator may be a transparent plastics rod with one side whitened. A sheet of translucent plastics between runs incorporates three miniature lamps in its lower half which illuminate the graduations through red filters while the centre lamp only directs some clear light on to the indicator so that it appears white.
Patent GB-303385-A (GB)
Title: Direct cutting of evolving tooth curves of cylindrical gears
IPC: B23F5/22
Filed: 1928-12-31
Abstract: 303,385. Mestroni, G., and Zallud, H. Dec. 31, 1927, [Conventoion date]. Void [Published under Sect. 91 of the Acts]. Gear-cutting; milling cutters.-In a method of cutting straight or helical gears of involute profile, the cutting is effected by a tool whose edge moves directly along the profile to be generated. Thus in Fig. 1, the cutting may be effected by means of a screw hob having a thread whose sides are perpendicular to the hob axis, the pitch p of the hob being equal to the circumference of the gear base circle divided by the number of teeth. The cutting is effected by the extreme points d of the hob teeth which move relatively to the blank along the involute curves a when the hob and blank are rotated in timed relation. If the base circle coincides with the root circle of the teeth, both sides of the tooth flanks may be generated simultaneously by a hob arranged as shown in Fig. 2. It is also stated that the method is applicable to the cutting of gears by tools moving longitudinally of the gear teeth.
Patent GB-912043-A (GB)
Title: A file indexing system for vertical upstanding or suspended folders in a cabinet
IPC: B42F17/00
Filed: 1958-12-01
Abstract: 912,043. Indexing; filing papers. BECKER, O. A. Dec. 1, 1958, No. 38607/58. Classes 16 and 146 (1). Vertical upstanding or suspended folders having projecting tabs 4 bearing reference numerals, are filed in fixed or movable compartments or drawers provided with an index panel displaceably mounted whereby it may be adjusted into a variety of viewing positions, index strips showing the contents of each folder in alphabetical order against the reference numerals appearing on the tabs, being detachably and exchangeably arranged on the index panel. An open-fronted compartment 1 is provided with an index panel 7 rotatable about pivot pins 20 and an index panel 21 slidable in a guide 22. The folders are contained between partitions 5 having projecting index tabs 6 and slidable along fixed rails 19. Alternatively, the index panel engages curved guide members at each side whereby the, angle of inclination is adjustable. The folders may be suspended from an I-shaped pull-out frame running in rails at each side of the open-fronted compartment, said frame carrying an index panel rotatable about end pivots, or from a pair of suspension rails arranged in a horizontal or inclined plane having an index panel slidable therealong. In another embodiment, folders are supported upright in an open-sided drawer divided in two by a| central wall 53 (see Specification 912,044) carrying rotatable index panels 52 and having slidable or rotatable index panels at the open sides. The folders are contained between partitions 5 slidably mounted on a fixed rail 103 on the central wall or base of the drawer and pivotable about vertical or horizontal grooves 104, respectively. Pull-out index cards 57 are held in girders 55 on the partitions.
Patent GB-1160142-A (GB)
Title: Electrical Rapper
IPC: H02K33/02
Filed: 1966-08-30
Abstract: 1,160,142. Electrical precipitators. JOY MFG. CO. 30 Aug., 1966 No. 38609/66. Heading B2J [Also in Divisions H1 and H2] An electrical ripper, as used is an electrical precipitator, comprises an elongated hammer 36 having a first portion 44 slidable within the tubular spool 4 of a coil 2 energisation and deenergisation of which reciprocates the hammer whose second, enlarged, portion 38 is guided in a tubular casing (26) Fig. 3 by a bearing 48 secured to the portion and having passageways therethrough, Fig. 7, for the passage of air; the coil magnetic flux path is formed by a tubular side 6 surrounding the coil and at the spool ends two end plates 8, 10 abutting the side 6 at notches 14, 20; the two annular volumes 24, (90) Fig. 3 between the coil 2 and side 6, and the latter and the casing 26 are filled with sealants e.g. epoxy resins which also cover the top plate 8 and embed a terminal block 56 for the coil leads. The side 6 and spool 4 are secured to the plates 8, 10 by spread beads of silicone rubber sealant subsequently cured.