baber/WOPTO huggingface dataset:
Patent GB-913786-A (GB)
Title: Monitoring circuit
IPC: G06V10/98
Filed: 1961-02-15
Abstract: 913,786. Automatic character reading. BURROUGHS CORPORATION. Feb. 15, 1961 [Feb. 26, 1960], No. 5659/61. Class 106 (1). In a character-reading system as described in Specification 913,785, a circuit is provided to respond to an excessive signal to reject the character which comprises a number of mixer diodes 54-62, Fig. 5, connected to those delay line taps where large peaks are likely to occur and means for gating the resulting signal to a threshold circuit, an excessive signal being adapted to cause this circuit to produce an operating signal for a monostable device having a fixed time-width output. The diodes 56-62 are connected to a junction 64 through resistances 66-72 and diode 54 directly. A potentiometer 76 regulates the input voltage so that the maximum permissible gives - 6 volts on the base of emitter follower transistor 80 which acts as a low impedance input to junction 94. A similar input to this junction comes from the feed-back amplifier of the recognition circuit which subtracts from the output of each correlation network, 90% of the maximum so as to leave only one line with a significant output. An excess voltage may also appear at this point in the circuit and it is also scaled down to a - 6 volts maximum at point 94. Diodes 98, 106 act as a gate. The coarse timing pulse, indicating that the waveform is properly positioned in the delay line, enables the gate and passes the signal at point 94 to a transistor threshold device 110. A greater voltage than - 6 v. causes conduction. Transistor 118 has a feed-back connection to the base of transistor 110 to form a mono-stable device which is triggered to give a 25 Ás. pulse to reject the character whenever the threshold is exceeded. Specification 888,718 also is referred to.
Patent GB-621453-A (GB)
Title: Improvements in optical viewing devices
IPC: G02B25/00
Filed: 1947-02-27
Abstract: 621,453. Optical viewing devices. ADREMA, Ltd., and SANDERSON, T. E. F. Feb. 27, 1947, No. 5662. [Class 97 (i)] An optical viewing device comprises a cylindrical lens or lens system so arranged that the final image of the object to be viewed is reversed in one dimension only. As shown, the device comprises two cylindrical lenses 3; 4 arranged with their generators parallel in a recessed block 5, which also carries a magnifying spherical lens 7. To the block is attached a plate 9 in which is threaded at 10 a screw, carrying a clamping nut 13, which also passes through apertures in a clamp 11, through which passes the bent end of a rod 12. Thus, if nut 13 is loosened, the block 5 can be rotated about two axes which are respectively coincident with and perpendicular to the axis of the screw 10. Rod 12 is slidable within an arm 14, pivoted on a bracket 16 mounted on a table 18 having an aperture 19, below which is disposed a light source 20. Thus, printed matter on the underface of a paper web which passes over the aperture 19, as in an addressing machine, may be read by means of the device.
Patent GB-1072631-A (GB)
Title: An improved bicycle
IPC: B62K19/02
Filed: 1965-02-10
Abstract: 1,072,631. Bicycles. B. G. BOWDEN. Feb. 2, 1966 [Feb. 10, 1965], No. 5792/65. Heading B7E. A cycle, the small wheels of which may be formed of resinbonded fibre glass discs comprises shells 10, 11 of fibre glass provided with reinforcing flanges which are contained by channel members of fibre glass or metal and are bonded together, Fig. 8 (not shown), and a rear wheel suspension and transmission system 32, Fig. 6 (not sh n) combined in a unitary housing 34 which is releasably secured to the frame. A telescopic steering column having a quick release lock 20 is rotatable in the shells 10, 11 and mounts a resiliently supported wheel 24. A double chain and pedal drive having a variable speed hub is also provided and the rear wheel has a known hub and freewheel arrangement resiliently supported by a torsion bar and trailing link suspension. The rear fork members 56, Figs. 4 and 6 (not shown), are rigidly connected to a torsion bar 54 rotatably mounted at its ends in the fibre glass housing 34, but the centre portion of the bar is fixed to an upwardly extending angularly adjustable but lockable lever 66. Rubber suspension rebound blocks 62 and stops 64 are provided. In Fig. 7 (not shown) pairs of bearings such as 78, 80 support the drive spindles 36, 44 in the bolted together fibre glass members 74, 76 forming the housing 34. To assemble the cycle, the seat tube 68 is first passed through the hole 88 in the shell 10 and then the transmission unit 32 is slid on to the tube 68 and bolts 90 passed through corresponding holes in the housing and shells. Mud guard 92, Figs. 2, 7 (not shown), and side panels such as 94 are fitted by bolts 98. A carrier 104 fastened to the frame as shown and a lighting control panel 112 are further provided.
Patent GB-1125677-A (GB)
Title: Lead-through insulators for fitting in an aperture of a housing wall
IPC: H01F27/04
Filed: 1967-02-07
Abstract: 1,125,677. Lead-through insulators. DANFOSS A.S. 7 Feb., 1967 [25 Feb., 1966], No. 5820/67. Heading H2C. A porcelain lead-through insulator 8 for fitting in an aperture in adjacent mutually inclined walls of a transformer housing 3 has two lead-through cores (15), (16), Fig. 1 (not shown), and two mutually inclined walls 17, 18 provided with slots 19, 20 respectively for engaging the edges of cut-out portions 13 and 14, Fig. 1 (not shown), of the housing walls. In an alternative arrangement, Fig. 3 (not shown), only the slot 19 engages a cut-out portion, the other housing wall in this case overlapping the other wall 18 of the insulator 8.
Patent GB-162139-A (GB)
Title: Improvements in bricks or blocks for use in building walls
IPC: E04B2/02
Filed: 1920-02-26
Abstract: 162,139. Anderson, L. Feb. 26, 1920. Bricks &c., special shapes of.-Bricks or blocks for building walls with ventilating-channels have grooves in their outer surfaces. The stretchers a have horizontal grooves 1 along their upper and lower surfaces, the headers b vertical grooves 2 across their side surfaces, and the corners c vertical grooves 3 across a side and an end surface. When built into a wall as shown, continuous ventilating-channels are formed by the grooves. Reference has been directed by the Comptroller to Specifications 3198/82, 3770/93, and 143,633.
Patent GB-1129952-A (GB)
Title: Improvements in or relating to electrical contact devices for variable transformers and the like
Inventor: HIGGINS EDWARD CHARLES
IPC: H01F29/06
Filed: 1965-02-11
Abstract: 1,129,952. Transformers. MIDLAND TRANSFORMER CO. Ltd. 9 May, 1966 [11 Feb., 1965], No. 5897/65. Heading HIT. To balance the currents taken by co-operating moving (roller) contacts from coil 10, each of the two (two-roller) contacts 11, 12, 13, 14 mounted in pairs on carriages 18, 20 is connected by a brush 26 to one side of one of two fixed conductive split bars 25, 29. Each of these consists of metal strips 31, 32 separated by insulating material, and the strips associated with carriage 18 are paired with those of carriage 20 by centretapped coils which act as balancing impedances and are connected to output terminals 43. The metal and insulating strips which comprise split bars 25, 29 may be riveted together or be held by dovetails. Where there is an even number of contacts each pair may be associated with a single split bar, and with an uneven number the odd one can have its own conductive bar, connections being made in either case in a fixed position between them. If desired, the contacts may be mounted on a single carriage to one side of the coil instead of on two or more moved together. There may be more than one coil, each coil having three or more co-operating contacts.
Patent GB-788452-A (GB)
Title: Improvements in or relating to venetian blinds
IPC: E06B9/305
Filed: 1955-03-01
Abstract: 788,452. Venetian blinds. VENETIAN VOGUE, Ltd. (Aktieselskabet Stanso). June 1, 1956 [March 1, 1955], No. 6043/55. Class 20(3) The top board structure 1 of a venetian blind is of substantially U-crosssection, having spaced walls 1a with inwardly bent edges 1b. The locking mechanism 6, comprising a roller 6a over which cords 7 pass, and a locking pawl 6b pivotable to pinch cords 7 against an abutment (no shown), the slatcarrier rollers 2, to. which tapes 3 carrying slats 4 are anchored, rotatably mounted in bearings 5a, and tilting gear 9 comprising a worm wheel drive, operated by cords 10, which rotates the shafts 12, 11, are supported in substantially U-section fittings 8, 5, 13 respectively, which are slid into position through the open ends of the structure and held there frictionally or by indenting the edges 1b of the side walls. Alternatively, the fittings may be retained by flanges or grooves extending along the walls 1a so that fixing means such as rivets or screws are dispensed with. The cords 7 may be anchored. to the top board and passed round pulleys on, the bottom board, or be anchored to the bottom board, which comprises an upper and lower sheet metal member in slidable engagement and end caps, the tapes 3 passing through slots in the upper member. Specification 765,419 is referred to.
Patent GB-1262349-A (GB)
Title: Circular knitting machine
IPC: D04B9/06
Filed: 1969-02-04
Abstract: 1,262,349. Knitting machines. MASRIERA S.A. 4 Feb., 1969, No. 6046/69. Heading D1C. In a cylinder and dial machine having half as many dial needles as cylinder needles, the cam arrangements are such that on changing from rib to plain knitting the dial loops are transferred to active cylinder needles. Plain knitting is thereby effected at half the gauge of the rib.
Patent GB-590390-A (GB)
Title: Polymers and interpolymers of dichlorodifluoroethylene
IPC: C08F14/18
Filed: 1945-03-12
Abstract: 1,2 - Dichloro - 1,2 - difluoroethylene or 1,1 - dichloro-2,2-difluoroethylene is polymerized by heat in the presence of oxygen or a per-compound, e.g. benzoyl and lauroyl peroxides, diethyl peroxide, tert-butyl hydroperoxide and ammonium, sodium or potassium persulphates.  Interpolymers may be made with one or more of vinyl acetate, chloride and fluoride; acrylic and methacrylic acids and their esters, anhydrides, amides and nitriles; styrene, ethylene, propylene, isobutylene; butadiene, chloroprene, isoprene; vinylidene chloride and fluoride; tetrafluoroethylene, trichlorofluoroethylene. Polymerization may be effected in bulk, solution or emulsion and in the presence of light.  Elevated pressure may be used.  The products may be combined with or prepared in the presence of plasticisers, fillers, pigments, dyes, natural or synthetic resins and stabilizers.  They may be formed into films and fibres which may be oriented and set by heat treatment.  Solutions, e.g. in carbon tetrachloride, may be used for coating wires, coils, glass fibres, bentonite films, carbon, ceramics and mica.  Aqueous dispersions may be prepared from such solutions.
Patent GB-164759-A (GB)
Title: Improvements relating to circular braiding machines
IPC: D04C3/00
Filed: 1917-05-01
Abstract: 164,759. Horn, G. May 1, 1917. Braiding-machines. - In machines which have two sets of bobbins moving in opposite directions, and which usually make braid of the kind shown at 1, Fig. 3, a single cam 11 is used to operate the thread guides 1, 2 of one set of bobbins. These guides are alternately levers having the pivot 8 intermediate the eye 7 and cam roller 5 or the pivot 9 at one end. Adjacent threads are thus guided in similar but displaced paths a, b and the fabric produced is that shown at 2, Fig. 3.
Patent GB-355648-A (GB)
Title: Improvements in and connected with machines for grinding and refining paint, cellulose, chocolate, chemicals and such like material
IPC: B02C19/10
Filed: 1930-02-25
Abstract: 355,648. Grinding- machines for paint, chocolate, &c. McINTYRE, J., 28, Brighton Place, Portobello, Midlothian. Feb. 25, 1930, No. 6166. [Class 59.] The grinding bars N, which revolve in contact with the circumferential lining of a jacketed cylinder A, are pivoted at P to flexible blades L whereby the bars are pressed evenly against the lining 20. The ends of the blades L are pivoted in circular recesses M in a disc H fixed to a hollow shaft G, Fig. 1, adapted to be driven by a worm wheel 14 and worm 15. A floating ring I carrying pins O is spaced from the disc H bv rollers J and the blades L lie between the pins so that movement of the ring I relatively to the disc H adjusts the pressure of the bars N against the lining 20. The outer ring may carry the flexible grinders and the inner ring may be made to operate them. The ring I is moved by bell cranks R, Q, pivoted on the disc H and operated by links V pivoted on a spindle Y which passes through the hollow shaft G and is engaged by a tubular nut 2. The nut is mounted in ball bearings and is extended to carry a gear wheel 3 which engages with a gear wheel 6 cut on the same spindle as a gear wheel 7. The gear wheels 6, 7 are rotatable about their axis and about the axis of the driving shaft. A slidable hand-wheel 9 carries a peripheral flange 8 with gear teeth 11 and a central spigot 13 with gear teeth 12. When pressure is to be put on the blades N the hand-wheel 9 is pulled out and held stationary so that the gear wheels 7, 12 engage. The wheel 7, through the rotation of the driving shaft rolls on the gear 12 causing the gear 8 to turn the gear 3 in the opposite direction to the rotation of the driving shaft thereby screwing the nut 2 on to the spindle Y. The arms R are thereby pushed outwardly by the links V to rotate the ring I and apply pressure to the blades L through the pins O. When the pressure is to be released the hand-wheel 9 is pushed in and held stationary so that the gears 11, 7 engage and through the gears 6, 3, rotate the nut 2 in the same direction as the driving shaft, but at a faster speed thereby unscrewing the nut 2 from the spindle Y. A band brake 23 may be used to hold the hand-wheel stationary. In a modification the hand-wheel is provided with projecting pins and the nut 2 with a flange having holes into which the pins are inserted when the hand-wheel is pushed in. When the hand-wheel is held stationary the rod screws itself into the nut to apply pressure to the bars N and when the hand-wheel is turned faster than and in the same direction as the rotating disc the pressure is released. The lining 20, Fig. 3, comprises longitudinally arranged round-edged bars dovetailed into the end covers and secured circumferentially by a packing strip 22 dovetailed into the cylinder A.
Patent GB-124909-A (GB)
Title: Improvements in and relating to Kilns.
Inventor: DONALD WILLIAM
IPC: F27B13/02
Filed: 1918-04-12
Abstract: 124,909. Donald, W. April 12, 1918. Multipre-chamber kilns.-In gas-fired kilns provided with two combustion zones for each rectangular kiln chamber, each combustion zone is supplied with gas from a single flue and with air for combustion by multiple flues so as to give an equal distribution of the air, which is preheated bv passing first through conduits in the waste-gas flues, and then through a previously-fired chamber. The kiln shown comprises two lines of chambers between which is a pair of flues 27 leading to a divided stack. Combustion takes place behind bag walls 30 at the sides of a chamber, and the products pass down through a perforated floor to vertical flues 34, from which they may be delivered to the exhaust flue 27 through the dampered passage 37, or to the next chamber of the series through the dampered connexions 38. The air for combustion is supplied by fans to conduits 28 in the flues 27, and passes through dampered connexions to multiple floor-flues 40 opening behind the bag walls 30 of a previously fired chamber, where it is further heated by the bricks therein. It may pass through one or more such chambers, and is finally delivered to mix with gas supplied from a producer through flues 31 behind the bag walls of the firing chamber. Thorough mixing of the gas and air is ensured by horizontally-arranged staggered baffles. The perforated floor of each chamber consists of blocks supported in inverted pyramidal recesses 33.
Patent GB-265403-A (GB)
Title: Improvements relating to show-cases or the like
IPC: A47F3/00
Filed: 1926-03-06
Abstract: 265,403. Harris & Sheldon, Ltd., and Stockwin, W. J. March 6, 1926. Showcases.-Sheet-glass fall-front doors for showcases are mounted in channelled metal edging strips 5 which do not extend to the full depth of the door. At one end the strips are hinged to horizontally sliding guide members 6 which can be drawn together to cause the edging strips to grip the glass 4. One or both strips may have a projection 7 engaging a recess in the glass to secure the latter in a positive manner. The guide members may be screwed to a spacing board 2, or in a modification they are separated by adjustable tie rods 14, 15, as in Fig. 9.
Patent GB-1497745-A (GB)
Title: Bistable electronic circuit arrangement
IPC: H03K3/013
Filed: 1975-02-14
Abstract: 1497745 Semi-conductor bi-stable SIE SOC ITALIANA ELETTRONICA SpA 14 Feb 1975 [15 March 1974] 6308/75 Heading H3T A bi-stable arrangement for use as a memory in a logic system of automation and capable of being submitted to a change-over test without operating the circuitry connected as a load to its output has a master-set S and a master reset R input, a memory means A 1 A 2  a first gate B2, a second gate B3 and three delay circuits R1, Cl, R2, C2, D2, and R3, C3, D3 connected substantially as shown. The load (not shown) has a known response time T R . If an input test signal having a relatively short duration T 18  is compared to the delay T2 of the second delay R2, C2, D2 then the output responds to the input pulse but ceases when the input does. An input operating signal T 18  longer than the delay T2 causes the circuit to latch maintaining the output after the input has ceased. If an operating pulse arrives while the circuit is being tested, then latching will still take place. Choice of the delay T2 to be shorter than the load delay T R  ensures that a test pulse not only will not latch the bi-stable arrangement but also that the output will not operate the load. The second delay circuit as shown is asymmetric, the diode D3 causing the changeover from 1 to 0 to be undelayed. The first delay R1, C1 provides that an input signal at X that is longer than the first delay is applied first to one side A2 of the latch, having no effect, then to both sides and finally to the other side only A1 thereby leaving the output of the latch in the "1" state. This "1" is delayed a time T2 in the second delay R2, C2, D2, and then causes the output Q to change to "1" also. This change from 0 to 1 is passed through the third delay R3, C3, D3, which is asymmetric also, to the set input X. The output of gate B3 goes to "1" again, setting the latch to the other state, the output of A going to "0". The asymmetric delays pass this change from 1 to 0 with no delay and so the signal at the output of B3 ceases before it has time to be passed through the first delay R1, C1 to the other input of the latch, which therefore stays with its output at "0" in the normal, quiescent state. The circuit may be constructed from CMOS elements.
Patent GB-684816-A (GB)
Title: Improvements in or relating to shock absorbers
IPC: F16F9/10
Filed: 1951-03-16
Abstract: 684,816. Hydraulic shock - absorbers. CHRYSLER CORPORATION. March 16, 1951 [March 30, 1950], No. 6354/51. Class 108 (ii). In a direct acting hydraulic shock-absorber comprising a piston and cylinder and a reservoir arranged concentrically of the cylinder and having check valve means between a compression chamber and the reservoir and having a rebound chamber adjacent the end of the cylinder through which the piston-rod extends, the check valve means permitting substantially free flow between the reservoir and compression chamber during the rebound stroke of the piston and preventing liquid flow between the compression chamber and the reservoir during the compression stroke, liquid transfer means is provided resisting flow of liquid between the compression and rebound chambers and from the compression chamber to the reservoir, the means comprising flowrestricting escape passage means to restrict flow from the compression chamber to the reservoir and flow restricting shuttle passage means in constant communication with the compression and rebound chambers and operative to restrict flow between the chambers on both compression and rebound strokes of the piston. In the arrangement shown, in which a piston E, carried by a piston-rod 28, is slidable in a cylinder 31 defining working chambers F and G surrounded by a reservoir cylinder 34, the chambers F and G communicate freelv through a tubular passage H coiled round the cylinder 31. The compression chamber G, on downward movement of the piston E communicates with the reservoir below the liquid level therein through a tubular escape passage J of relatively smaller diameter disposed between the convolutions of the tube H. Upon rebound of the shock-absorber, liquid is returned from the reservoir to the chamber G through a non-return base valve K. The latter comprises a valve carrier 46 having an opening 56, and a counterbore 57 housing a plate valve 58. The valve 58 is formed with peripheral openings 59a and is retained in the bore 57 by a spring 60, having radially-extending spring fingers 61 bearing lightly on the valve 58. A single passage H or a plurality of passages H may be provided in combination with a single or a plurality of passages J. The shockabsorber may be mounted in an inverted position to that shown in which case the reservoir space adjacent the valve K is of larger capacity or a separate reservoir may be mounted on the cylinder 34. Alternatively, the shock-absorber may be mounted horizontally.
Patent GB-1205894-A (GB)
Title: Improvements in or relating to a grab
IPC: B66C3/12
Filed: 1968-02-08
Abstract: 1,205,894. Grabs. SOC. INDUSTRIELLE DELATTRE-LEVIVIER. 8 Feb., 1968 [22 Feb., 1967], No. 6362/68. Heading B8H. A wide span grab, Fig. 1, comprises two halves 1, 2, pivoted to a frame 5 and interconnected by linkages which are pivoted to the axes 11, 12 of reversing pulleys 13, 14, to each other and the grab halves at 9, 10 and to a further pulley 20 at 19. An opening rope 16, Figs. 1, 4, passes from a point 22 on the frame 5 round the pulley 20 to the hoisting means. It is deflected by a guide 23, Fig. 4, in the closed position and this provides an initial opening moment. The closing cable 15, Figs. 1, 3 extends from the pivot 10 round pulleys 13, 14, between which it is deflected by a pulley 21, and to the hoisting means. The two halves of the grab have interengaging segments. Fig. 9 illustrates a second embodiment in which the grab is closed by a cable as before but is held open by arms 24, connected to a rocker 25 which carries automatic hooking devices 26 which engage a member 27.
Patent GB-492962-A (GB)
Title: Improvements in or relating to vehicle headlamps
IPC: F21V7/00
Filed: 1938-03-03
Abstract: 492,962. Vehicle lamps. DAY, F. C. R., and BRIGGS, R. H. March 3, 1938, No. 6382/37. [Class 75 (iv)] A lamp adapted to be mounted low down on the front of a vehicle, e.g. just above the bumpers, comprises a horizontal elongated trough-shaped reflector of parabolic crosssection within which are mounted electric lamp bulbs 1 each having a supplementary cup-shaped reflector 19, a forwardly projecting hood 3a being provided on the front of the lamp casing to prevent emission of light in an upward direction. An auxiliary bulb 10, for use when a forwardly and upwardly directed beam is required, is mounted in a reflector 9 above the main reflector 8, the entire lamp being enclosed in a casing consisting of three sections 3, 3a, 3b hinged together at 5, 5 and held in the closed position by a readily disengageable fastening.