baber/WOPTO huggingface dataset:
Patent GB-611122-A (GB)
Title: An arrangement for drying webs of fabric or paper
IPC: F26B3/28
Filed: 1946-04-20
Abstract: 611,122. Drying fabric webs. DECK, P., and KELLER, W. April 20, 1946, No. 12125. Convention date, Nov. 6, 1945. [Class 34(i)] One or more sources of infra-red rays are spaced on one side of the web, with mirrors on the opposite side for reflecting surplus rays back to the web. Nozzles are spaced on both sides for subjecting the web to streams of compressed air.
Patent GB-833353-A (GB)
Title: Improvements in or relating to television receiver cabinet structures
Inventor: AIKEN WILLIAM ROSS
IPC: H04N5/64
Filed: 1956-04-20
Abstract: 833,353. Television. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 20, 1956, No. 12125/56. Class 40 (3). A television receiver incorporating a flattype of cathode-ray tube 3 comprises a cabinet structure 1 housing the audio and video components and provided at the rear with a recessed portion 2 in which the tube is contained when not in use (Fig. 2) and from which it may be raised to a viewing position as shown in Fig. 1, either manually or by means of an electro-hydraulic system 9, 13, 14, 15, Fig. 3, or a rack-and-pinion arrangement 20, 22 driven by an electric motor 21. Specifications 794,257 and 801,841 are referred to.
Patent GB-1212552-A (GB)
Title: Improvements in and relating to devices for limiting beam current in television picture tubes
IPC: H04N5/14
Filed: 1968-03-13
Abstract: 1,212,552. Cathode-ray tube operating circuits. BLAUPUNKT-WERKE G.m.b.H. 13 March, 1968 [22 March, 1967], No. 12129/68. Heading H4T. In a television receiver in which the average beam current is limited by conventional means, the magnitude of rapid variations is controlled by deriving a signal from the resulting rapid voltage variations at the tube anode and utilizing it, via an automatic gain control circuit, to control the level of the video signals modulating the tube beam. Thus, in response to a sudden positive peak in beam current the resulting negative peak in the EHT voltage at the tube anode operates via the gain control circuit to hold back the gain and thus the total contrast so that maximum brightness values correspond to lower values of beam current. This arrangement prevents the release of a large number of secondary electrons from the tube screen which would disturb the composition of a colour picture, cause heating of the screen and by affecting the deflection, lead to a blurred picture. Fig. 2 shows the described embodiment in which the EHT voltage variations are derived from the metallized coating 11 (capacitatively coupled to the anode inner coating 10) and fed via a protective choke 14 (blocking pulses of excessive magnitude), a capacitance voltage divider 15, 16 and a R.C. filter 4 (blocking momentary pulses, such as line fly-back pulses) to the cathode of a diode 5 which is biased by network 7, 8 into its cut-off range. Thus, negatively going voltages which exceed this bias cause the diode to conduct and the voltage developed at its anode is supplied to a biasing resistor 17 in the circuit of the video detector 18 to control the level of the video signal supplied to the video amplifier 19. This controls the level of the feed-back voltage from a gated automatic gain control circuit 20 which holds back the amplification and thus the total contrast until the modulation level returns to its previous value. The picture contrast is thereby reduced so that maximum brightness values correspond to lower values of beam current. The average beam current is controlled by a negative control voltage developed across a resistor 21 in the EHT generator 2 and supplied via a control amplifier 22 to the stages 23 which determine picture brightness. The pulses developed across the protective choke 14 may also serve for other purposes such as a control voltage for a ballast tube.
Patent GB-289471-A (GB)
Title: Improvements relating to piezo-electric crystals
IPC: H03H9/19
Filed: 1928-04-25
Abstract: 289,471. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Little, D. G.). April 28, 1927, [Convention date]. Piezo-electric crystals. - A quartz section for use in connection with constant-frequency oscillation-generators is cut from the mother crystal in such a way that the electrode surfaces 24 - - 27 and 28, 30, 31, 32 respectively are parallel both to the optical axis 2, 2 and to one of the principal piezoelectric axes 5, 5, instead of being parallel to the optical axis and the principal crystallographic axis 3, 3 as usual. The fundamental crystal frequency then depends upon the thickness 27, 32 coincident with the crystallographic axis 3, 3 and perpendicular to the piezo-electric axis 5, 5, so that a comparatively large electrode area is made available in a crystal section of high fundamental frequency.
Patent GB-1009207-A (GB)
Title: Surgical pad and method of making the same
IPC: A61F13/06
Filed: 1962-03-29
Abstract: 1,009,207. Toe pads. SCHOLL MFG. CO. Ltd. March 29, 1962, No. 12160/62. Heading A5R. A surgical pad shaped to protect a human toe and having a digit loop comprises a first blank comprising a pair of body-forming portions 3, 4 interconnected by a loop-forming strap 5, said ' portions being disposed in edge-to-edge abutment to complete the pad body, and a second blank 7 substantially the size of the body secured to said portions in superposed face-to-face relationship to increase the thickness of the pad body, the pad body and the strap forming a general ring shape. One blank comprises semicircular pad portions 3, 4 interconnected centrally or at one side by a digit loop-forming strap 5. The other blank comprises a disc 7 of the same diameter as the semicircular pad portions and is secured by stretchable adhesive 10 over the semicircular pad portions to form a circular pad, the semicircular portions being disposed in edge-to-edge abutment. The disc may be secured outside or inside the digit loop. The semicircular portions may each have concentric semicircular notches 6 which form an afflictionreceiving opening when the pad is assembled or may have no such notch. The disc 7 may or may not have an affliction-receiving opening 8. The blanks are made of a thick layer of cushioning material 1, e.g. latex, polyurethane or polyvinyl chloride foam, having on one side a thin film or sheet e.g. rubber. Reference has been directed by the Comptroller to Specification 752,738.
Patent GB-243241-A (GB)
Title: Improvements in and relating to fireplaces, stoves and the like
IPC: F24B1/195
Filed: 1925-05-11
Abstract: 243,241. McLaren, W. D., Welsh, G. M., and Johnstone, J. G. May 11, 1925. Open fireplaces; grates; boilers, arrangement of. - In an open fireplace for heating two adjacent rooms a firebox d slides beneath the lower edge of a fixed partition e, or beneath a boiler h below the partition, the opening below the partition or boiler being sealed by the firebox. A single flue g and controlling dampers f, or an independent flue for each side of the fireplace, may be provided.
Patent GB-1031433-A (GB)
Title: Improvements in or relating to grinding machines
IPC: B24B49/18
Filed: 1963-03-27
Abstract: 1,031,433. Trueing grinding wheels. MSO. MASCHINENUND SCHLEIFMITTELWERKE A.G. March 27, 1963 [April 7, 1962], No. 12204/63. Heading B3D. [Also in Division G1] A grinding machine comprises a grinding wheel head, first feed means for effecting infeed of the head, a first electrical control device coupled to the first feed means, a grinding wheel trueing tool support, second feed means for effecting automatic infeed of the trueing tool support, a second electrical control device and a disengageable clutch arranged for coupling the second electrical control device to the trueing tool support, the first and second electrical control devices being electrically connected such that actuation of the first feed means with the clutch engaged results in a signal being emitted from the devices, this signal being arranged to cause the second feed means automatically to feed-in the trueing tool support by an amount corresponding to the infeed of the grinding wheel head produced by said actuation of the first feed means. A workpiece 5 mounted between centres is ground by a grinding-wheel 2 on a wheel head 1 movable towards the workpiece by a threaded shaft 3 rotatable, through gears 7, 8, by a hand wheel 10. The wheelhead 1 carries a housing 14 on which is mounted, by a roller guide 16, a slide 15 which can be reciprocated by an hydraulic drive 17. A trueing diamond 19 is carried by a sleeve 18 mounted in the slide 15 and restrained against rotation by a key 21. The screw-threaded end of the sleeve 18 meshes with a nut 22 rotatable, through bevel gearing 28, by a hand wheel 30. One part 33 of an electromagnetic clutch is slidably keyed on the shaft 29 of the hand wheel 30 and the other part 32 of the clutch is driven, through worm gearing 31, 35, by a motor 37. A transmitter 13 is connected to the grinding wheel feed-shaft 3. A receiver 27 can be coupled by an electromagnetic clutch 25, 26 to the trueing diamond feed-nut 22. For initial trueing, the diamond 19 is fed into the grinding wheel 2 by rotating the hand wheel 30, the slide 15 being reciprocated by the hydraulic drive 17. The grinding wheel 2 is then fed towards the workpiece by the hand wheel 10 until the workpiece is of the desired size. Subsequent trueing is effected manually by the hand wheel 10 or automatically by a ratchet mechanism, not shown. The switch 40 is closed, energizing the clutch 25, 26 so that the receiver 27 is coupled to the nut 22. Rotation of the transmitter 13, as the shaft 3 is rotated, causes the receiver 27 to emit an error signal which is fed to an amplifier 38 and energizes a relay 39, thus energizing the clutch 32, 33 causing the motor 37 to drive the shaft 29 and hence the nut 22, whereby the trueing diamond is fed into the grinding wheel 2 by the same amount as the grinding wheel is advanced towards the workpiece so that the position of the operative part of the grinding wheel surface is unaltered.
Patent GB-728336-A (GB)
Title: Improvements in puppets and puppet theatres
IPC: A63J19/00
Filed: 1953-05-04
Abstract: 728,336. Toys. WEBBER'S DOLLS, Ltd., and DONNER, S. P. April 29, 1954 [May 4, 1953], No. 12267/53. Class 132(3). The head c of a puppet a is mounted at the upper end of a rigid wire b which extends vertically through the puppet a and through a platform i on which the puppet stands held erect by a spring e around the wire within the puppet and a weighted or lead disc h on the lower end of the wire b. The wire b may extend up one leg d of the puppet, the other leg being free. The platform is slotted and the puppet is manipulated by means of the disc h.
Patent GB-626306-A (GB)
Title: Improvements in or relating to operative shaving heads
IPC: B26B19/14
Filed: 1946-04-23
Abstract: 626,306. Dry shavers. JAY, M. April 23, 1946, No. 12295. Convention date, Dec. 22, 1941. [Class 131] In a shaving head of the kind having a curved, perforated, cap-shaped shearing plate under which cutting blades rotate on an axis perpendicular to the tangential plane at the apex of the cap, the cutting edges of the blades are parallel to and offset from a line intersecting the axis of rotation of the blades at right angles. As shown the blades n, sliding on pins p in oblique slots m in a blade-carrier j, are urged by cantilever springs q towards the cap a which is clamped between the casing b and a collar c by screws e which also secure, to the casing, a supporting member d forming a bearing for a spindle f of the blade carrier. A driving spindle h of the blade carrier is brought into co-operation with a drive shaft from the motor when the head is attached to the motor casing by a plug and socket joint formed by three spring arms g. A recess is provided in the blade carrier for the evacuation of hair.
Patent GB-375020-A (GB)
Title: Apparatus for arranging tobacco leaves
IPC: A24B3/16
Filed: 1931-04-25
Abstract: 375,020. Tobacco. UNIVERSELLE CIGARETTEN-MASCHINEN-FABRIKJ. C. MULLER & CO., 48, Zwickauerstrasse, Dresden, Germany. April 25, 1931, No. 12303. Convention date, Jan. 9. [Class 130.] In an apparatus for arranging tobacco leaves with their midribs all lying in the same direction, for instance prior to cutting, the leaves are delivered by a conveyer belt 1, Fig. 1, to a slideway 4 provided with a series of flaps 7, 8, 9, 39, 44 for detaining and then releasing the leaves. The flaps are pivotally mounted on spindles 10, 11, 12, 38, 42 provided with arms 15, 16, 17, 37, 43, connected by links, levers, &c. to a pair of bell-crank levers 22 actuated by a rotating cam 20, the flaps being set so that the flaps 7, 9 are closed when the remaining flaps are open, and vice versa. An adjustable flap 46 may be arranged to direct the leaves towards the centre of the chamber 5 below the inclined slideway. The leaves are delivered to a box 45, a number of which may be arranged in a circle on a continuously rotating disc, as described in Specification 261,035, [Class 78 (i), Conveyers &c.]. In a modification, Fig. 3, the leaves are alternately detained and released by rods L carried by bars St sliding in guides G and actuated by means of rollers R engaged by a curved groove in a member Sch reciprocated in the direction indicated by arrows.
Patent GB-933522-A (GB)
Title: Hydraulic fluids
IPC: C07F9/24
Filed: 1962-03-30
Abstract: Hydraulic fluids comprise a major amount of an alkyl, aryl or alkyl aryl ester of a phosphorus acid, and a minor amount of a reaction product of an aliphatic or araliphatic amine with a halide of an optionally partially esterified acid of phosphorus. Lists of suitable amines and halide of the phosphorus acid (which includes a thionophosphoric acid) are given.  Optional ingredients are chlorinated paraffins and/or polyesters.
Patent GB-832137-A (GB)
Title: A propellant explosive and method of making the same
IPC: C06B45/28
Filed: 1958-04-18
Abstract: 832,137. Propellant powders. RECHERCHES CHIMIQUES S.A. April 18, 1958 [April 18, 1957], No. 12376/58. Class 9(2) A particulate explosive having a relatively low temperature co-efficient upon combustion is produced by treating the surface of particles of a smokeless powder with a solution of at least one nitric acid ester of an aliphatic polyhydric alcohol (defined as excluding nitrocellulose) and with a desensitiser so as to adhere at least the said nitric acid ester to the surface of the particulate smokeless powder. The two treatments may be combined in one step or may be sequential. Specific nitric acid esters of polyhydric alcohols of those of glycerol, diethylene glycol, triethylene glycol, trimethylol-ethane or diethanolamine nitrate. The sensitiser may be symmetrical diethyldiphenyl urea, camphor, a phthalic acid ester, dinitrotoluene or trinitrotoluene. The smokeless powder may or may not be free of nitric acid esters of polyhydric alcohols.
Patent GB-437374-A (GB)
Title: Improvements in or relating to toys and game apparatus
IPC: A63B67/16
Filed: 1934-04-25
Abstract: 437,374. Toys. CRAMP, R., CRAMP, R. G. W., and CRAMP, B., c/o Cramp & Sons, New North Road, Barkingside, Essex. April 25, 1934, No. 12383. [Class 132 (iii)] Toy or game apparatus of the devil-on-two-sticks type comprises a double top or bobbin having two separate ends 1 and 2 which are provided with wheel treads 3 and are fixed on a spindle 4 on which an idle roller 5 rotates freely. The bobbin is spun by a device comprising two legs 6 and 7 pivoted on a pin 9 and provided with handles 11 and 12 and normally kept open by a spring or elastic band 10. One of the legs 7 is a single blade and works in a slot in the other leg which may be cut from one piece or built up of two sides with distance pieces between. The inner edge of one or both blades may be recessed near the outer end to aid in picking up the bobbin and the bobbin may have ball or roller bearings for the roller 5.
Patent GB-853794-A (GB)
Title: Improvements in cartography
Inventor: DRESSLER ROBERT
IPC: G01C11/00
Filed: 1959-04-13
Abstract: 853,794. Photo-electric cartographic devices. AUTOMETRIC CORPORATION. April 13, 1959, No. 12436/59. Class 40(3). Adjacent frames of an aerial photograph or successive photographs of a radar screen are compared by viewing two such frames by photo-cells and by adjusting the position of one frame relative to the other so that common features appear superimposed, the difference in the photo-cell outputs then being minimum. Due to movement of the photographing aircraft, generally features on one frame are displaced from the same features on an adjacent frame by perpendicular amounts x and y and by a rotational amount # Fig. 2 (not shown). In Fig. 3, the aerial photographs, in the form of identical strip films 17, 17<SP>1</SP>, are viewed by photo-cells 32, 32<SP>1</SP>. The cells are excited by a light spot from a cathode-ray tube 22, an area of which is scanned by a flying spot scanning system, the light being transmitted through the film and an optical system. The cell outputs pass to a difference amplifier 34 which feeds an indicator 36. Film holder 20 is mounted for movement in the directions x, y and # and holder 18 mounted for movement at least in the direction #. These movements are set manually and measured by dial gauges and vernier scales, Figs. 5, 6 and 7 (not shown). To use the apparatus, first identical frames are positioned in the gates 19. By adjustment of the x, y and # movements the indicator 36 is made to read a minimum, showing effective super-positioning of the frames. The values of x, y and # correspond to zero values. The film in holder 20 is now advanced by one frame and adjustment made until the indicator gives a minimum reading. The values of x, y and # are noted and the # movement set in holder 18 so that the x and y directions are maintained constant between each matching operation. The difference signal on indicator 36 is preferably indicative of the match over the entire area illuminated on the film frames. In the circuitry of Figs. 8, 8a, for use with the above appartaus the photo-cell units 152, 154 feed a differential amplifier comprising valve 164 which feeds a wide-band video amplifier comprising valves 166, 168 and 170 and switch means to attenuate low frequencies so that the operator can concentrate on differences in fine detail if desired. The amplifier output is displayed on a monitor cathode ray tube 54 which is supplied from the same scan generator as the tube 22 which excites the cells. The output is also passed to a cathode follower 172, rectifiers 174, 176 and integrating networks to a valve 210 whose output feeds the meter 36. An alternative circuit, Fig. 9 (not shown), gives a maximum indication, when frames are superposed, by obtaining the cross correlation function of the signals from the photo-cells.
Patent GB-1430303-A (GB)
Title: Dental filling materials
IPC: A61K6/893
Filed: 1973-03-15
Abstract: 1430303 Dental filling material AMALGAMATED DENTAL CO Ltd 15 Feb 1974 [15 March 1973] 12620/73 Addition to 1401805 Heading C3P A dental filling material comprises a mixture of a finely divided, inert organic filler; the reaction product of an organic diisocyanate and an at least stoichiometrically equivalent amount of a hydroxyalkyl acrylate or methacrylate having the formula (wherein R<SP>1</SP> denotes H or methyl, R<SP>2</SP> denotes an alkylene radical and R<SP>3</SP> denotes a divalent hydrocarbon radical); and a bisphenol A derivative having at least two terminal acrylate or methacrylate ester groups. The exemplified composition is made by mixing liquid A containing a 2-hydroxypropyl methacrylate/2,2,4- trimethyl hexamethylene diisocyanate reaction product, triethylene glycol dimethacrylate (TGDM), p-tolyl diethanolamine (activator), a U.V. stabilizer and silica with liquid B containing bisphenol A dimethacrylate, TGDM, butylated hydroxytoluene, di-tert-butyl sulphide (inhibitor), water, benzoyl peroxide (catalyst) and said silica and with a filler, e.g. quartz, glass, silica or aluminium oxide coated with a coupling agent such as gamma-methacryloxypropyl trimethoxy silane.
Patent GB-559922-A (GB)
Title: Improvements in and relating to machines for folding the edges of sheet material
IPC: B65H45/12
Filed: 1942-09-08
Abstract: 559,922. Folding edges of sheet material. MAPLE & CO. Ltd., ENGLISH, R., and LINE & SONS, Ltd., J. Sept. 8. 1942, No. 12659. [Class 42 (i)] A machine for folding hems at the edges of a triangular sheet of paper or the like, e.g. of detector gas sleeves, comprises folding members actuated in suitable sequence by a single operating member while this continues its movement in one and the same direction, each folding member 9, 10 11 respectively being connected by a rod 21, 22, 23<SP>1</SP> to one end of a lever 23, 24, 25 pivotally mounted intermediate its ends, the other ends of two of the levers e.g. 23, 24 being connected by links 29, 30 to the opposite ends of the base of a triangular structure 31, the apex 32 of such structure being connected to one end of an actuating lever 33, pivotally mounted at its opposite end 35 and connected, intermediate its ends, to an operating member or pull rod 41; a spring 34 is connected to the base of the structure 31 nearer to the point of connection of the lever 24 than to the point of connection of the lever 23, and the lever 25 is connected by a link 43 to the lever 33 at a point intermediate the point of attachment of the member 41 and the pivotal point 35 which is mounted on a spring 40. The folding members are preferably of channel, section hinged to the top of the folding block 8 with the base of the channel flush therewith when in the inoperative positions, the outer flange of each channel carrying a spring-controlled plate 13, which, as the members are turned through 180 degrees to engage and fold the hems of the sheet, recede from the block 8, the folding members 9, 11 having overlapping portions 36, 37 and the members 9, 10, 11 coming into operative position in that order so as to fold the apex and base of the sheet. The folding members may be provided with piercing or other means to hold the hems in the folded position and suction or other means may be provided for holding the sheet on the block 8. According to the Provisional Specification the hems of a rectangular sheet may be folded by replacing the third folding member by two members arranged similarly to the first two folding members.