baber/WOPTO huggingface dataset:
Patent GB-583565-A (GB)
Title: Improvements in and relating to multiple flash lamp devices
IPC: F21K5/12
Filed: 1944-11-01
Abstract: 583,565. Flash-light lamp apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 1, 1944, No. 21364. Convention date, Nov. 1, 1943. [Class 9 (ii)] A multiple flash-lamp apparatus, suitable for photography, for emitting a number of flashes of light in succession, comprises a reflector 11, a support for directing a plurality of flashlamps 14 serially into co-operative relation to the reflector through the position normally occupied by the reflector, and means for moving the reflector out of the path of movement of the lamps during advancement of the lamps. The lamps are mounted on an endless band 13 which runs bn wheels 12 and 12<1>. The wheel 12 has two spaced flanges, between which protrude fixed electric contacts 21 to engage with the lead-in wires of each lamp in turn, and has a friction brake to prevent inadvertent movement. The reflector 11, which has an opening at its vertex to pass over the lamp bulb, is mounted on a slotted member 41 linked with a spring-loaded rod 44. When a lamp has been flashed, the axle 25 is rotated by means of a crank outside the casing 10 and causes the arm 50 to turn and allow the rod 44 to move the reflector to the position shown in dotted lines. Further rotation causes the pawl 57, which is mounted on an arm pivoted on the axle 25 and connected thereto with a lost-motion connection, to push the next lamp into position behind the reflector. A stop prevents the crank from being turned too far. The crank is then turned back so that the pawl 57 comes into position behind the next lamp and the reflector is returned to its original position by the arm 50. When the lamps have all been used, the band 13 can be removed, the wheel 12<1> being mounted on a pivoted spring-loaded arm 15. The lamp bases may be secured to the band 13 by means of their lead-in wires during manufacture, before the bulbs are mounted on the bases. Specification 546,189 is referred to.
Patent GB-1215241-A (GB)
Title: Arrangement for character centering in automatic character recognition
IPC: G06V30/10
Filed: 1968-05-07
Abstract: 1,215,241. Character recognition; core matrix data-stores. INTERNATIONAL STANDARD ELECTRIC CORP. 7 May, 1968 [9 May, 1967], No. 21471/68. Headings G4C and G4R. [Also in Division H3] A character centreing arrangement comprises a plurality of character sensors feeding row wires of a matrix memory, diagonal wires of the matrix feeding a maximum value detector which can block a maximum value detector fed by other diagnonal wires, the detectors selecting a diagonal read-out wire of the matrix to read-out the stored signals on to column wires of the matrix. Referring to Fig. 3, a specially-shaped character having a short or long vertical stroke in a first column thereof is scanned horizontally by a column of 12 photo-diodes, this column being about 3 times the height of the character. The photo-diodes feed respective row wires Z1-Z12 of a magnetic core matrix, the signals from each of the five columns of the character being stored in turn in the whole matrix i.e. each photodiode signal is repeated in every core of its row. In response to the first column of the character, a maximum value detector 10 gives an output on one of 9 lines according to which of 9 diagonal sense wires L1-L9, each threading 4 cores as shown, carries the largest voltage, the voltage on the sense wire indicating the number of set cores threaded by it. If the maximum possible sense line voltage (4 cores set) appears at any input of maximum value detector 10, the latter inhibits a maximum value detector 11 which otherwise indicates which of diagonal sense lines K1-K11, each threading two cores as shown, carries the maximum voltage. Corresponding outputs of the detectors 10, 11 which detect the vertical position of long and short vertical strokes in the first character column respectively, are ORed to set one of flip-flop FF1-FF11 to select one of 11 diagonal read-out wires R1-R11 of the matrix. Each column of the character is read into the matrix in turn, as stated, and then read out using the read-out wire selected in response to the first column, on column wires Q1-Q6. Fig. 5 shows the treatment of the column wire outputs, but assuming 3n photo-diodes where say 3n = 60. The column outputs are stored in flip-flops at 16. The character is considered to be divided into 7 horizontally-extending zones, of which some viz. a, c, e, g, may or may not contain horizontal strokes and the rest viz. b, d, f may or may not contain vertical strokes. At 17, the outputs of the flip-flops in each of zones a, c, e, g are ORed together and those of the flip-flops in each of the other zones are added and then thresholded. -The resulting signals are stored in a 5 Î 7 matrix 18 which feeds diode logic to recognize the character. The outputs of the five matrix cells relating to each of zones a, c, e, g may alternatively be added and then thresholded to recognize a horizontal stroke before feeding the diode logic, or each of these sets of five matrix cells may be replaced by a binary counter, a count of at least 2 indicating a horizontal stroke.
Patent GB-618945-A (GB)
Title: Submarine signalling apparatus
IPC: F42C15/20
Filed: 1944-11-02
Abstract: A diaphragm for a submarine signalling apparatus (see Group XXXVIII) is made from a phenolic condensation product such as the substance known under the trade name of Synthane Grade C, having a density of 1.35.
Patent GB-597553-A (GB)
Title: Improvements in and relating to circulating pumps for forced circulation boilers
IPC: F22G7/10
Filed: 1945-08-22
Abstract: 597,553. Machinery beds. MONT STEAM GENERATOR, Ltd., and PLUMMER, G. A. Aug. 22, 1945, No. 21507. [Class 80(iv)] [Also in Group XXXII] Circulating pumps employed in forced circulation boilers are each mounted in alignment with their driving members on lugs b on a common bedplate a, which is flexibly mounted on a rigid foundation c. The flexible mounting comprises a number of spring-loaded bolts e carrying spherical washers f, f which bear on the lugs band foundation c respectively.
Patent GB-570774-A (GB)
Title: Improvements in apparatus for drying open width fabrics
IPC: F26B13/10
Filed: 1943-12-24
Abstract: 570,774. Drying fabrics. HUNT & MOSCROP, Ltd., and SHARPE, J. Dec. 24, 1943, No. 21593. [Class 34 (i)] A machine for drying a length of fabric D comprises upper and lower chambers A<1>, A<2>, separated by a horizontal partition B, and an endless conveyer C which is mounted on end pulleys C<1>, C<2> and carries the fabric through the two chambers in succession from feed rollers d<1>, d2 to cloth laying mechanism associated with a delivery roller d<3>. Drying air is projected on to the fabric on the upper run of the conveyor by nozzled ducts E<1>, the air passing through the fabric and conveyor to the chamber A<1> from which it is withdrawn, after being heated by contact with steam or water heated tubes F located in said chamber, and delivered to the ducts E<1> again by fans el disposed at one side of the machine. Similarly air is projected on to the fabric on the run of the conveyer in the chamber A<2> by ducts E<2> which are fitted below said conveyer and are associated with fans e<2> disposed on the opposite side of the machine to the fans e<1>; rollers may also be fitted in the chamber A<2> below the conveyer for supporting the fabric should the fans e2 fail and the suction effect be cut off. The references a, al shows respectively a damper-controlled fresh air inlet and a saturated air exhaust outlet. If desired the chambers A<1>, A<2> may be divided by a vertical partition so that two narrow width fabrics may be dried simultaneously.
Patent GB-785082-A (GB)
Title: An improved sink unit
IPC: A47L15/00
Filed: 1955-07-27
Abstract: 785,082. Sinks. ZANKER, P. July 27, 1955 [July 31, 1954], No. 21676/55. Class 26. [Also in Group XXIII] A sink unit has a drive take-off shaft 45 above the sink 13 driven by a motor 20 independent of the drive to the mechanical agitator of a washing machine and to a centrifuge also provided in the sink unit, the shaft 45 being adapted for operation of kitchen appliances such as 43 over the sink. The motor 20, in one direction of rotation, drives the shaft 45 through Vee-belt 19 and step-down gearing 44 enclosed oil-tightly in a housing 46 ; when reversed it drives a waste suction pump 22 for the washing machine. The kitchen appliances, which may include rotating brushes for cleaning, to be driven directly or through a flexible shaft, may be housed in a cupboard 41.
Patent GB-399635-A (GB)
Title: Improvements in the production of anhydrous ethyl alcohol directly from mashes and the like
IPC: B01D3/00
Filed: 1932-08-03
Abstract: <PICT:0399635/III/1> Absolute alcohol is obtained from mashes, worts, spent sulphite lye &c. by first separating the alcohol and fusil oils from the vinasses in a preliminary concentration and then subjecting the crude alcohol to complete dehydration and purification as described in the parent Specification.  The mash supplied through a pipe 1 and preheated in a condenser 2 is introduced through a pipe 3 into the bottom of a distillation column A.  The alcohol concentrated to 60-90 per cent and head products are removed through a pipe 5 to a column B in which the head products, e.g. methyl and ethyl acetates and acetaldehyde are removed and recovered by passage through condensers 6, 7 and cooler 8, while the alcohol and fusel oils pass from the bottom of the column into a heater C from which part of the alcohol vapours are directed through a pipe 10 to heat the column B while the remainder are passed through a pipe 11 into a dehydrating column D where they are dehydrated and purified by passage in countercurrent with a salt dissolved in absolute alcohol as described in Specification 368,793, the fusel oils remaining at the bottom of the column and being freed from last traces of alcohol by distillation in a column E.  The dehydrated alcohol vapours pass off from the top of the column D and are condensed in the condenser 18. Specifications 289,051, [Class 32, Distilling &c.], and 399,281 also are referred to.
Patent GB-616158-A (GB)
Title: Improvements in or relating to electro-acoustic devices
IPC: H04R7/16
Filed: 1945-08-27
Abstract: 616,158. Telephone instruments. STANDARD TELEPHONES & CABLES, Ltd., and SKELTON, D. E. Aug. 27, 1945, No. 21942. [Class 40 (iv)] An electro-acoustic device has two co-operating parts of the moving system so formed that contacting portions of the parts are stiff in the direction of movement, but there is flexibility between these portions normal to the direction of movement and the static pressure between them for a range of relative positions varies to such a small extent that the stiffness of the moving system does not vary substantially over the range. In the example shown, an electrode 1 is connected to the diaphragm 3 of a loud-speaker by a domed portion 2 into which project resilient teeth 4 formed on the diaphragm. The diaphragm and electrode may thus adjust themselves to steady forces along the axis of the speaker while remaining stiff for acoustic vibrations. When the parts have settled into position, they may be fixed with cement or some viscous binder. The teeth may be on the electrode instead of the diaphragm and the system may be used for connecting two parts of a composite diaphragm. Specifications 594,082 and 594,116 are referred to.
Patent GB-333712-A (GB)
Title: Improvements in or relating to pivoted flaps for furniture
IPC: A47B5/04
Filed: 1930-04-16
Abstract: 333,712. Prosser & Sons, Ltd., T. H., and Edwards, J. April 16, 1930. Double and multiple hinges. -A table flap g is hinged to a vertical frame c by two pairs of links h, i of such length and disposition that when the flap hangs downwards the links are substantially parallel and when the flap is horizontal, the links form a strutted bracket. The vertical frame c is mounted to slide vertically on a bedside cabinet a, or on a tea-wagon, desk, or other article of furniture, and can be secured at various heights by means of a pawl e and a perforated plate f.
Patent GB-1526916-A (GB)
Title: Emittercoupled transistor amplifier circuits
IPC: H03C1/54
Filed: 1977-05-27
Abstract: 1526916 Gain control; amplitude modulators SIEMENS AG 27 May 1977 [31 May 1976] 22391/77 Headings H3R H4R and H3G A variable gain emitter coupled circuit comprises two transistors with their emitters connected by respective D.C. paths to a reference voltage and through respective capacitors and separate series cascades of diodes to a controlled direct current source responsive to a control voltage, the junction point of the capacitors and their diode cascades being connected by a respective resistor to a reference voltage point. As described a doublebalanced modulator Fig. 1 in which the modulating signal U E  is applied to the bases of transistors 21 and 22, which have their emitters coupled for A.C. by diodes 15-20. The D.C. through these diodes and hence their dynamic impedance is controlled by a transistor 30 receiving an AGC voltage derived from a pilot signal. Potential divider 35, 36 applies a mean control voltage to transistor 30 in the absence of a pilot signal. In another embodiment, Fig. 2 (not shown), an unbalanced modulating signal is applied to the base of transistor 21 through an adjustable capacitative voltages divider to provide manual gain control, the base of transistor 22 being A.C. earthed. In this case a choke or active equivalent is inserted betwen resistors 11 and 12 and -U B  to prevent asymmetrical loss of signal.
Patent GB-259361-A (GB)
Title: Improvement in device for simultaneously inhaling menthol and aromatic oils
IPC: A61M15/00
Filed: 1925-09-08
Abstract: 259,361. Fecher, M. J. Sept. 8, 1925. Inhalers. - A device permitting the simultaneous inhalation of the vapours of menthol and aromatic oils comprises a base A having perforations B and carrying a menthol cone C. A sleeve E screwed to the base A contains a vessel G having an open re-entrant base 0 and a top portion shaped for insertion into the mouth or nostril. Tow or other absorbent material soaked in aromatic oils is placed in the annular space N. The device is covered by a screw-cap I provided with a felt wad L which closes the upper orifice M in the vessel G. The menthol-cone C may be used for direct application to the skin.
Patent GB-905404-A (GB)
Title: Weak cation exchange resins
IPC: B01J47/12
Filed: 1959-06-30
Abstract: Relates to weak acid cation-exchange resins comprising, in fibrous form, a polymer containing at least 10% by weight sodium carboxylate constituents.  The polymer preferably also contains unsubstituted nitrile groups and is preferably produced by treating a fibrous, high molecular weight, organic, nitrile-containing polymer to convert at least some of its nitrile groups to sodium carboxylate constituents, the conversion being preferably effected either by acid hydrolysis followed by neutralization with sodium hydroxide or by saponification with sodium hydroxide.  The nitrile-containing polymer may be polyacrylonitrile, a copolymer of acrylonitrile with vinyl chloride or styrene, a copolymer of vinylidene cyanide and vinyl acetate, which may be cross-linked with 4,41-diisocyanate diphenyl methane, or other homopolymers and copolymers derived from acrylonitrile, a -methacrylonitrile, a -ethacrylonitrile, fumaryl dinitrile or vinylidene cyanide.  The cation-exchange resins may also be produced by spinning into fibres copolymers of acrylic or methacrylic acid and converting to sodium salt form.
Patent GB-1079942-A (GB)
Title: Improvements in or relating to alternators
IPC: H02P9/38
Filed: 1964-05-30
Abstract: 1,079,942. Transformers. MACFARLANE ENGINEERING CO. April 7, 1965 [May 30, 1964], No. 22495/64. Heading H1T. [Also in Divisions G3 and H2] A transformer, having high reactance used in a compounded existing arrangement for an alternator, comprises two C-cores 37 wound with primary winding 35 and secondary winding 36, separated by shunts 38. The air gap 39 in the leakage path of the device is variable and an additional winding 18, effectively decoupled from primary winding 35, is wound adjacent winding 36. In a modification, Fig. 11 (not shown), coils are wound on the shunts so that their saturation can be controlled and thereby current supplied to the field winding of the alternator.
Patent GB-1064213-A (GB)
Title: Automatic photoprinting apparatus
IPC: G03B27/06
Filed: 1965-05-27
Abstract: 1,064,213. Photo-printing apparatus. BUCKBEE-MEARS CO. May 27, 1965 [Aug. 7, 1964], No.22522/65. Heading G2A. A continuous sheet 14 of thin metallic webbing, coated with a light-sensitive enamel or resist, is passed through one or more printing stations, three such stations 10, 11, 12 being shown In Fig.1. At each station the sheet is clamped in a frame 24, 26, Fig. 3 (not shown), which can be opened and shut by a pneumatic cylinder (23), vacuum suction also being applied to obtain better contact. The sheets are printed on both sides simultaneously with a pattern 25 carried by glass master plates which have registration blocks 29 for alignment purposes. The light sources are carbon arc lamps 17. In order to optimize production rates while economizing on unused material. The pattern areas 25 at successive stations are spaced apart a distance twice the pattern diameter, and between successive printing operations the sheet 14 is advanced a distance equal to three times the pattern diameter. The sequence of operations, i.e. opening the frames, advancing the sheet, closing the frames, energizing the lamps for a predetermined time, etc., for as many printing stations as are being used, is controlled automatically, and a lay-out of electrical and pneumatic lines for effecting this control is described and illustrated.
Patent GB-780717-A (GB)
Title: Improvements in or relating to high velocity air distribution apparatus
IPC: F24F1/01
Filed: 1954-08-03
Abstract: 780,717. Ventilation. INTERNATIONAL ANEMOSTAT HOLDING CO., Ltd. Aug. 3, 1954 [Aug. 4, 1953], No. 22558/54. Class 137 [Also in Group XXIX] Ventilation air from a high pressure pipe or pipes, is diffused by admitting it, past valve means, into a plenum chamber 28 and then into an attenuation chamber 29 from which it passes to the room through vanes 90. The pipe connections 35, 36 may be connected to hot and cold air supplies, mixing being effected in the chamber 28. The quantities of air admitted through the connections are controlled by valves 39, 40 which are moved axially in unison by means (see Group XXIX) which are driven by a fluid pressure motor 60 under thermostatic control. The valves are provided with fins which break up the high-pressure air streams entering the chamber 28. An inclined baffle 31 lies between the chamber 28, 29, the baffle and all the walls of the diffuser being lined with sound-deadening material. The air issues from the chamber 29 by passing under a deflector plate 102 and through a jet plate 82 and louvres 90. The holes in the jet plate are arranged in rows as at 87, 88, 89, 94, the lower holes 94 being closed to a greater or lesser extent by a valve-bar 96 which is pressed by leafsprings 97 against the plate 82, but is raisable therefrom by a lever 100 which projects through a slot in the jet plate to a position of accessibility. The bar 96 is pivoted in parallel-ruler manner to the plate 82. Alternatively the bar has an adjustable screw mounting on the plate, the screws being accesible through the louvres. If the holes 94 are closed, the upward delivery of the air, through the upper holes and louvres, induces an upward flow of recirculated air through lower reversely sloped louvres. If the holes 94 are opened, the air issues through all the louvres. In a modification, one air supply only is provided, this being connected to a central valve-controlled inlet of a cylindrical casing, the outlet from which is in the opposite wall in alignment with the inlet. The partition between the plenum and attenuatim chambers is in the form of a disc which is adjustable, by screw means, towards and away from the inlet. The inlet valve is adjusted by a screw passing through the partition which is, together with the walls of the apparatus, lined with sound-deadening material In both constructions, the plenum chamber is connected by a small tube to a pressure-measuring device. Specification 780,718 is referred to.
Patent GB-655553-A (GB)
Title: Improvements in automatic frequency control of thermionic oscillators
Inventor: RATCLIFFE STANLEY
IPC: H03L7/16
Filed: 1947-08-14
Abstract: 655,553. Automatic frequency control systems. MINISTER OF SUPPLY. Aug. 14, 1947, No. 22610. [Class 38 (iv)] In an automatic frequency control circuit in which signals from controlled and reference oscillators are applied to a mixer and the difference frequency is fed to a discriminator circuit from which the control voltage is derived, the oscillator is liable to " lock " at a, difference frequency which is a sub-harmonic of that desired, due to the production of harmonic frequencies in the mixer. Accordingly, according to the invention means are provided for disabling the frequency control means when the frequency difference is in the neighbourhood of one or more sub-harmonics of the desired difference frequency. As applied to a control system of the kind described in Specification 641,900, in which the frequencycontrolled oscillator is caused to " search " until the difference frequency falls within a band in which normal discriminator-operated A.F.C. becomes possible, the " searching " means then being disabled, the anode circuit of the valve V1 includes circuits L4, L5 tuned respectively to one half and one third of the desired difference frequency, in addition to the discriminator L1, L2 and circuit L3 tuned to the desired difference frequency. The "search" is normally terminated by operation of a relay in the anode circuit of valve V3 consequent upon a control voltage from the discriminator appearing on its grid; if, however, a voltage is also developed across either circuit L4, L5 it is rectified by a diode V2 and is applied after smoothing to the suppressor grid of the valve V3, thereby disabling it and preventing false interruption of the " search ". The arrangement may be modified by deriving the subharmonic frequencies from a separate mixer and amplifier, Fig. 2 (not shown).
Patent GB-1514515-A (GB)
Title: Process for the after-treatment of polyurethane foams
IPC: C08J9/36
Filed: 1975-05-23
Abstract: 1514515 After treatment of polyurethane foams KOEPP AG 23 May 1975 [27 May 1974] 22658/75 Heading B5A Polyurethane foam in particulate or continuous form is treated with an organic solvent of donicity greater than 20, donicity being defined as the negative value of the energy of formation of the solvent-antimony pentachloride adduct, and at the same time or subsequently is moulded by heat and pressure. The shaped article is cooled after the evaporation of the organic solvent. The heating takes place between 40‹ and 170‹ C. and the organic solvent may be mixed with a miscible liquid which is not capable of facilitating deformation of the foam on heating. Examples of each are given. The process is particularly suitable for manufacturing an artificial leather.