baber/WOPTO huggingface dataset:
Patent GB-647886-A (GB)
Title: Method and apparatus for coating webs
IPC: B05C11/06
Filed: 1947-02-19
Abstract: 647,886. Coating webs. WALDRON CORPORATION, J. Feb. 19, 1947, No. 4772. Convention date, March 13, 1946. [Class 140] A web, e.g. of paper, is coated by first applying an excess of coating material and then to remove excess coating, impinging a jet of air against the web at such an angle that the component of force tending to drive the composition into the web exceeds that tending to blow the composition backwardly, means being provided adjacent the point of impingement to intercept atomized coating material and prevent its return to the web. A web W, Fig. 1, prewetted by the coating material or a solvent or thinner applied by a roll 15, and doctored by a knife 16, is coated by an applicator roll 17, subjected to an air jet N as it passes round a platen roller 20, and thence passes to a drier or other apparatus through a suction box A containing a travelling perforated rubber apron 22. The air jet N, Fig. 2, comprises a horizontal tube 25 parallel with the roller 20 and having elbows 26 journalled in the machine frame 28 to allow the jet to be rotated between angles of 45 and 90 degrees to the web, bolts 32 and 34 moving in slots 33 and 35 to limit the rotation and serving to hold the jet in any predetermined position. The tube 25 is also rotatable with respect to the elbows 26, a stop lug 57 formed on the tube 25 being engaged by a screw 58 for fine adjustment and to allow the nozzle tn be swung away for cleaning and returned to its original position, and a locking screw 60 on the tube 25 engaging a lug 61 on the machine frame for holding the nozzle in its operative position. The nozzle tube 25 comprises a radial flange 36 which may be integral with the tube and with which cooperates a movable plate 37 to form the nozzle slot. The plate 37 has a ridge 39 pivoting in a groove 38 in the wall of the tube 25 and is spring-urged against a micrometer adjusting screw 42 which may be calibrated for the width of the nozzle slot. A baffle B deflects backward the atomized coating composition and comprises a triangular bar 45 slidably mounted on a shelf 46 on the machine frame. The bottom of the bar 45 is slotted to receive bolts 47 which retain it in position after adjustment by screws 48. The bar 45 has a ridge 49 below the line of impact of the jet, and the inner wall 50 is smoothly curved to further deflect mist from the nozzle slot. A feeding comb 65 operated by a hand lever 68 and having tines 67 is provided for feeding the web over the roller 20.
Patent GB-139600-A (GB)
Title: Improved means for attaching a watch or the like to the wrist or other member
IPC: A44C5/14
Filed: 1919-02-26
Abstract: 139,600. Andrew, H. F. Feb. 26, 1919. Attaching identity disks and compasses to hand or wrist; watch bracelets.-The watch or other article a, Fig. 1, is attached by a band d of spring metal or other resilient material having overlapping portions d<1>, d<2> connected by a slide joint e, a stop d<3> preventing total disengagement. The band has hooks c at its ends to engage with the loops b on the watch &c., a spring f being carried by the hook c to render the band elastic. In the form shown in Fig. 2, the band d is of spring metal and is connected at each end to two hook-carrying portions by two free slide joints e, which are caused, by the contractile effect of the band d, to abut against the watch when not in use. In another form similar to that shown in Fig. 1, the overlapping ends of the band are secured by a wedge joint. In a further form, Fig. 4, two metal hook-carrying portions h are secured to a flexible non-metallic band k bv clips j; or the hooks and the band may be frictionally secured by a metal loop.
Patent GB-1008305-A (GB)
Title: Control device in particular automatic pilot
IPC: G05D1/08
Filed: 1963-11-13
Abstract: 1,008,305. Automatic steering control. BODENSEEWERK PERKIN-ELMER & CO. G.m.b.H. Nov. 13, 1963 [Nov. 13, 1962], No. 44867/63. Heading G3R. An automatic control system operating with derivative action is provided with negative positional feedback and with negative rate feedback which is automatically increased with the frequency of system oscillation. In Fig. 5, a rate of turn gyro 1 on an aircraft produces rate signals, integrated rate signals, and differentiated rate signals which are added together at 1a, limited at 1b and serve to control, through an amplifier 3, a servomotor 4 adjusting the rudder (not shown) to maintain course. Postion and rate feedback signals are derived from a pick-off 5 and tachogenerator 6 coupled to the servomotor. The control signals are also applied through a frequencyresponsive network 7 and amplifier 8 to energize the heater of a thermistor R20 so that the rate feedback increases with increased frequency of the control signals. Stability is thus assured over a wide band of control frequencies such as may occur for different speeds of the aircraft. Energization of the thermistor heater is limited by the parallel-connected limiter shown. In a modification, Fig. 6 (not shown), the armature of the servomotor is arranged in a bridge circuit, the output of which, dependent on servomotor speed, serves as rate feedback. In this arrangement the thermistor heater is supplied with the control signals through a transformer connected in the bridge circuit.
Patent GB-1154360-A (GB)
Title: Improvements in and relating to Spectacle Lenses
Inventor: HOFMANN CHRISTIAN
IPC: G02C7/02
Filed: 1967-02-01
Abstract: 1,154,360. Spectacle lenses. CARL ZEISS JENA, VEB. Feb. 1, 1967, No.4932/67. Heading G2J. A spectacle lens has on at least one of its faces Fresnel rings which are concentric with an axis. As shown, Fig. 6, Fresnel rings 34, 35, are formed on the adjacent faces 36, 37, of a transparent case 32 and lid 33 so that the rings are protected. Alternatively they may be protected by a transparent cap or by being contacted by a medium of different refractive index whose opposite face may be curved. The rings may be concentric with an axis which coincides with the optical axis of the lens, is parallel, or orthogonal, thereto, and may be formed on a plane, spherical or aspherical face. The Fresnel rings may beformed as two or more series corresponding to different focal lengths, the rings of each series alternating with one another.
Patent GB-433707-A (GB)
Title: Improvements in or relating to wireless and like receivers
IPC: H03G3/26
Filed: 1934-02-14
Abstract: 433,707. Valve circuits for wireless reception. PLESSEY CO., Ltd., and BAILEY, C. E. G., Vicarage Lane, Ilford, Essex. Feb. 14, 1934, No. 4939. [Class 40 (v)] Muting bias is developed at the cathode of a receiving valve and applied in opposition to a fixed potential and without magnification to a control electrode of another receiving valve when signals of below a predetermined amplitude are being received. The invention is shown applied to a superheterodyne receiver comprising a combined triode-pentode frequency changing valve 31 in which the triode acts as a local oscillator and the pentode as first detector. The intermediate frequency is amplified by the pentode portion of a similar valve 32 and fed therefrom to a second detector 38 having a load resistance 39. The signal output from the latter is fed through a potentiometer 40 to the triode portion of valve 32 while the D.C. voltage developed thereacross is fed to the grid of the pentode portion through a resistance 42 to control the anode current of this valve in accordance with signal strength. The cathode of this controlled valve is connected to earth through a potentiometer 14 and a fixed voltage source 15 tending to render positive the grid of the low frequency amplifying triode which is earthed through resistance 18. When no signal is being received however the anode current of the I.F. pentode is large and produces a voltage across the resistance 14 in opposition to the source 15 and of sufficient magnitude to suppress the output of the L.F. triode. As the said anode current decreases with rise in signal strength the muting voltage is reduced and when the tapping 20 on the resistance 14 becomes negative with respect to earth, current flows through resistance 18 and a unilateral conducting device 19 connected between the triode grid and the tapping 20 to give a normal operating grid bias to the triode. A.V.C. potentials which are fed to the first detector 31 through resistance 23 are derived from a resistance 22 connected in series with a unilateral conductor 21 between the cathode of valve 32 and earth and in which current flows from the source 15 when the said cathode falls below earth potential.
Patent GB-429055-A (GB)
Title: Improvements in wearing apparel
IPC: A41D27/20
Filed: 1934-02-15
Abstract: 429,055. Wearing-apparel; pockets. SMITH, C. G., LLOYD, J. H., LLOYD, W. J., and JACOBS, E., 28, Wood Street, London. Feb. 15, 1934, No. 5030. [Class 141] A reversible garment is made of a single ply material having opposite faces contrasting with one another, and is provided with pockets accessible from either side of the garment, each being formed by cutting an opening f in the garment, attaching a patch c of the same material, and fitting a flap h in the opening f, sewn on the same side of the garment as the patch c and passing upwardly through the opening to form a mouth to the pocket. The edges of the garment are bound instead of being hemmed, and both faces are provided with buttons and buttonholes, the buttons being attached at the inner ends of the buttonholes.
Patent GB-202543-A (GB)
Title: Apparatus for target practice with rifles and other fire arms
IPC: F41G3/26
Filed: 1922-02-21
Abstract: 202,543. Alm, E. E. Feb. 21, 1922. Teaching small-arm shooting.-Relates to devices of the kind described in Specification 177,308 in which aim is taken at a target mounted near the muzzle of the gun, the target holder being connected to the gun and resting against a rigid support while the movements of the gun are transmitted to a pointer which makes a record on a separate card According to the present invention, the target holder is so connected to the gun that the aiming movements of the gun are not imparted to the target holder, which preferably has at least two supporting points bearing on the rigid support so that lateral angular movements of the target are prevented. In the construction shown, the target 14 is carried by a yoke 15 having two legs provided with wheels 16 adapted to bear on a supporting surface 17. The yoke has forwardly projecting arms 20 carrying a cross-piece 21 having at its centre a hole fitting on a hook 23 on a post 5 rigidly fixed to the gun. The recording pointer 8 and the record card 28 are both mounted on parts fixed to the gun, the rear end of the pointer being also pivoted to the target holder so that the aiming movements of the gun relatively to the target are communicated to the pointer. Bell-crank lever mechanism 34, actuated' by rods 37, 40 sliding in the barrel bore, is provided for displacing the support 30 of the record card 28 towards the pointer when the firing mechanism is actuated. The target 14 is arranged just behind the ordinary foresight 7, which is thereby hidden. In consequence, an auxiliary foresight is provided.
Patent GB-122086-A (GB)
Title: Improvements in or relating to Pneumatic or like Rollers.
IPC: C14B17/04
Filed: 1918-03-22
Abstract: 122,086. Jones, A. Seymour, and Turner Tanning Machinery Co. March 22, 1918. Rollers.-In pneumatic rollers of the kind having fluid under pressure contained between an outer flexible covering and the mandrel, the space between the mandrel and the covering is occupied by a cellular or porous material, such as rubber sponge, attached to the mandrel and the covering. As shown in Fig. 1, the porous material consists of a single mass 3 vulcanized to the mandrel 1 and a canvas cover 2, and an outer fixed or detachable sheath 4 of india-rubber has its ends secured in an air-tight manner to collars 5. French chalk, black lead, fuller;s earth, &c. may be introduced between the sheath 4 and the cover 2, and the sheath may be adapted to rotate relatively to the cover. The porous material may consist of longitudinal strips, a helical strip, or washers. A bore, such as 9, is provided for the circulation of air through the porous material. In another form, the porous material 3, Fig. 6, is wholly enclosed in a covering 8 of india-rubber.
Patent GB-323405-A (GB)
Title: Improvements in cleaning machines for tin plates
IPC: C23G5/00
Filed: 1929-02-15
Abstract: 323,405. Cole, J. H. Feb. 15, 1929. Cleaning.-In a branner for removing grease from tin-plates the bran is agitated by two conveyer screws set transversely across the trough and arranged to feed the bran in opposite directions. The plates, fed from the tinning pot through rolls b, are guided by rails c to horizontal rolls e which pass them to feed rolls f of a branner trough a from which they are delivered obliquely by rolls g. Across the trough and close beneath the path of the plates are journaled two conveyer screws h<1>, h<2> of opposite pitch, rotated in the same direction, and so that thev assist the movement of the plates to the rolls g, by chain drive from sprocket wheels on the spindle of the rolls f. The bran is passed transversely across the trough by the screw h<1> and is returned in the opposite direction by the screw h<2>. The plane containing the axes of the screws is substantially parallel to the plane in which the plates move in the trough. The screw h<2> which is less deeply immersed in the bran is made of slightly longer pitch or rotated more quickly than the screw h<1>. In modifications, the screws may be similar in pitch but rotate in opposite directions, or one screw may have two portions of opposite pitch conveying the bran to the middle of the trough while the other has two portions of opposite pitch which convey the bran from the middle to the sides.
Patent GB-875890-A (GB)
Title: Ferromagnetic materials
IPC: C04B35/26
Filed: 1959-02-13
Abstract: 875,890. Magnetic compositions. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. Feb. 13, 1959[ Feb. 18, 1958], No. 5113/59. Drawings to Specification. Class 38 (2). A ferromagnetic ceramic material comprises 50-60 mol. per cent MnO, 3-20 mol. per cent Cr 2 O 3  and the remainder Fe 2 O 3 . The material is prepared mixing the appropriate oxides and heating in nitrogen containing 1% oxygen for four hours at between 1150‹ C. and 1250‹ C. These materials are used in devices utilizing the gyromagnetic effect and have an improved ratio of rotation of the plane of polarization of incident electromagnetic waves to the attenuation of such waves.
Patent GB-237516-A (GB)
Title: Improvements relating to trousers-stretchers
IPC: A47G25/66
Filed: 1925-02-25
Abstract: 237,516. Marshall, G. Feb. 25, 1925. Trouser-stretchers. - In stretchers for insertion in the legs of trousers comprising a pair of members 1 2 forced apart by wedges the wedges 9, are moved toward one another to effect the stretching. The wedges preferably co-operate with guide flanges the closed end portions 8 of which form stops to prevent complate withdrawal of the wedges. A coiled spring serves to draw together the wedge members, and is housed in a U-shaped member 17, which prevents longitudinal movement of the wedge members. Pairs of links may also beprovided for controlling the movement of these members.
Patent GB-1527011-A (GB)
Title: Ionization smoke sensors
IPC: G08B17/10
Filed: 1976-02-10
Abstract: 1527011 Ionization smoke detectors HOCHIKI CORP 10 Feb 1976 [10 Feb 1975] 05196/76 Heading H1D An ionization smoke detector comprises an insulating plate 12 having on one side an electric circuit 11 surrounded by a metallic case 18, and on the other side an inner electrode 1 carrying a radiation source 6 and surrounded by an intermediate electrode 2, which in turn is surrounded by another metallic case 21 serving as an outer electrode and defining an ionization chamber 4, the cases 18 and 21 being electrically connected by a conductive elastomeric member 15 between their opposed rims, the case 21 having openings 21a permitting access to the chamber 4 by the atmosphere, and the circuit providing an output indicating the p.d. between the intermediate and outer electrodes 2 and 21. The rim of the case 21 is attached to an annular frame 16 which is bolted through the annular elastomeric member 15 to the plate 12 and to an outer housing part 10, whereby the interior of the ease 18 containing the circuit is rendered air-tight. When smoke enters the chamber 4, the voltage between electrodes 2 and 21 increases, causing an F.E.T. in the circuit to conduct and produce an alarm signal. Reference has been directed by the Comptroller to Specification 1,280,304.
Patent GB-1248197-A (GB)
Title: Diagnostic method and apparatus for the detection of bacteria
IPC: C12Q1/08
Filed: 1970-02-03
Abstract: 1,248,197. Micro-biological testing. ABBOTT LABORATORIES. Feb. 3, 1970 [Feb. 3, 1969], No. 5218/70. Heading C6F. An apparatus for the detection and quantification of bacteria in a suspected sample e.g. urine, includes the following four media: I. an enriched dextrose medium (ensures growth of all urinary tract pathogens and indicates catalase reactions and dextrose fermentation, II. eosin methylene blue agar medium containing lactose (inhibits growth of Gram-positive bacteria and indicates lactose fermentation), III. urea-gelatine medium (indicates micro-biological production of urease and gelatinase) and IV. citrate medium (citrate utilization). Formulations for these media are given. The individual media, measuring 1" by 1¢", may be arranged in a box 10, Figs. 1 and 2, with a cover 15 which will lock in the upright position during inoculation. The applicator 20 by which the example is applied to the media has a cotton wick and rayon sleeve. Counting of bacteria is facilitated by grid squares marked on the base of the compartments. After incubation and growth of the bacteria the catalase test may be carried out by adding a few drops of 3% solution of hydrogen peroxide to medium I. Similarly, the gelatinase test may be made by the addition of mercuric chloride reagent to medium III.
Patent GB-569781-A (GB)
Title: Improvements in bearing alloys
IPC: C22C9/08
Filed: 1943-04-02
Abstract: 569,781. Alloys. BRISTOL AEROPLANE CO.. Ltd., BETTERIDGE, W., and GADD, E. R. April 2, 1943, No. 5288. [Class 82 (i)] Bearing alloys contain 20-50 per cent lead, the remainder being silver and copper, the silvercopper ratio being between 0,1 and 1,5. Other bearing alloys contain 20-50 per cent lead, 0.2-10 per cent of one or a mixture of antimony, arsenic and bismuth, the remainder being copper. These alloys may contain small quantities, e.g. 2 per cent, of silver or tin or nickel to promote uniform distribution of lead throughout the alloy. Specified alloys contain 20-40 per cent lead and 5-8 per cent antimony, the remainder being silver and copper in equal proportions, e.g. 33 per cent lead, 5 per cent antimony, 31 per cent silver and 31 per cent copper. The antimony content may be in part or completely replaced by arsenic and/or bismuth.
Patent GB-119821-A (GB)
Title: Improvements in Incubators.
Inventor: MELLERSH-JACKSON WILLIAM JOHN
IPC: A01K41/00
Filed: 1918-03-26
Abstract: 119,821. Jackson, W. J. Mellersh-, (Watson, H. L.). March 26, 1918. Hatching-appliances.-An incubator having a series of separate compartments is provided with external operating means for turning the eggs in any or all of the compartments as required. A double tier incubator is shown in Fig. 1, the casings 1, 4 being supported on legs 2, 5, and being divided by longitudinal and transverse partitions into a number of compartments, access to which is provided for by doors 52. Within each compartment, the eggs are supported in a tray 15 comprising top and bottom frames 17, 18 with wire netting 19 serving to hold the eggs in position. The tray may be provided with adjustable partitions 50 held in place by pins 51 extending through the netting 19, or with other means to prevent shifting of the eggs. The tray is mounted in end supports 23, 24 connected by spacing bars 25 and provided with trunnions 27 rotatably mounted in the partitions 7 dividing the compartments. The end supports 23, 24 are formed with ledges or projections 30, 31 between which the tray is slid into position, springs 32 being provided in the ledges to grip the tray and limiting stops 35 on the tray determining its position. The operating means for simultaneously turning the trays in the several compartments comprises a shaft 43 extending longitudinally through the casing and terminating in an external crank-handle 45, within each compartment, a gear-wheel on the shaft 43 meshes with a gear wheel such as 40 on one of the end supports 24 of the tray. The trays are thus turned by rotation of the crankhandle 45. Any tray may be disconnected from the turning means when required, by loosening the set-screw which secures the corresponding operating gear wheel on the shaft 43. The usual heating pipes 10, 11 and circulating coils are provided.
Patent GB-244615-A (GB)
Title: Improvements in or relating to demountable wardrobes and like articles of furniture
IPC: A47B47/04
Filed: 1925-02-26
Abstract: 244,615. Anderson, A. E., and Anderson, K. E. Feb. 26, 1925. Panelled work.-Wardrobes and the like have back and side walls of panelled construction detachably connected together. The sides of the panel-frame are not jointed or directly connected but are grooved to receive the panels and are secured individually thereto. The top and bottom horizontal frame rails 12, 13, 35 of the sides and doors are formed with concave ends to fit against convex faces on the vertical posts 10, 11, 34, 37 to which they are secured by screws.
Patent GB-489389-A (GB)
Title: Improvements in and relating to vacuum operated braking systems
IPC: B60T13/46
Filed: 1937-02-23
Abstract: 489,389. Vacuum brakes. GRESHAM & CRAVEN, Ltd., GRESHAM, J. N., and MARSH, G. C. Feb. 23, 1937, No. 5395. [Class 103 (i)] The transmission between a vacuum brake cylinder and the brakes comprises a lever f pivoted to the piston rod c and a lever h pivoted on the cylinder, the levers being connected at their free ends by a rod g and connected intermediately to brake-actuating rods j, k. The cylinder is provided with a domed end m containing an internally projecting guide n for the piston rod.
Patent GB-621658-A (GB)
Title: Improvements in the feed mechanism of combined boring and milling machines
IPC: B23Q5/34
Filed: 1947-02-25
Abstract: 621,658. Boring, facing and milling machines. KEARNS & CO., Ltd., H. W., and KEARNS, SIR H. W. L. Feb. 25, 1947, No. 5408. [Class 83 (iii)] A combined boring, facing and milling machine is provided with a change speed feed gearing in common for and with means for alternative connection to either a constant speed or a variable speed drive and includes pick-off gearing interposed in the constant speed drive. The pulley 1, driven at a constant speed, is secured to the input shaft of a main gear-box 10 from which an output shaft 9 is driven in forward or reverse directions. Pick-off gearing 11, 12, which may be a worm and worm-wheel or helical spur-wheels, is interposed in the drive from the shaft 9 to the shaft 18 leading into the common speed change feed gear-box h. Shaft 18 may be driven by shaft 9 or by vertical shaft 15 by manipulation of clutch j. Shaft 15 is driven at a variable speed (for feed in units of length per revolution) from the boring spindle e. A further pick-off wheel pair 24, 25 may be provided in the speed change box h between the drive from the shaft 18 and the output feed shafts 28 and 31, for the work table b, and for the boring spindle feed and feed of the facing slide respectively.