baber/WOPTO huggingface dataset:
Patent GB-951092-A (GB)
Title: Memory circuits using negative-resistance diodes
IPC: G11C11/38
Filed: 1960-08-05
Abstract: 951,092. Digital data storage. RADIO CORPORATION OF AMERICA. Aug. 5,1960 [Aug. 31,1959],No. 27308/60. Heading G4C. [Also in Division H3] In a circuit comprising a tunnel diode which may be switched from its low-voltage condition to its high-voltage condition by the application thereto of pulses of suitable polarity and amplitude from a direct current pulse source, means for detecting the condition of the tunnel diode comprises a high-frequency oscillation source, a resonant circuit coupled to the tunnel diode and means for detecting oscillations in the resonant circuit. The biasing and load conditions for the tunnel diode are so chosen that the application thereto of oscillations of predetermined current amplitude from the high-frequency oscillation source periodically drives the diode momentarily into its negative-resistance region when it is in the high-voltage state but not when it is in the lowvoltage state. The result of periodically driving the diode momentarily into its negative-resistance region is to cause oscillations to be generated in the resonant circuit; to this end the resonant frequency of the resonant circuit is preferably onehalf that of the high-frequency oscillation source. The presence of oscillations in the resonant circuit is preferably detected by means of an aerial coupled to a tuned amplifier. The circuit illustrated in Fig. 1, comprises one element of a memory matrix, Fig. 5, in which information is stored by applying "write" signals simultaneously to appropriate ones of each of x and y conductors and recovered by applying simultaneous "read" signals to the same two conductors. The "write" signals comprise D.C. pulses from sources 30 and 38,the simultaneous presence of two such pulses being required to switch diode 36, connected to a bias source at terminal 50, from its low to its high-voltage state. Switching back to its low-voltage state may be achieved by the application of pulses of opposite polarity. In order to read out a particular stored item of information, R. F. pulses of frequency 2f are applied simultaneously to diode 36, the amplitudes being such that when the diode is in its highvoltage state it is just driven, once per cycle, into its negative-resistance region thereby causing oscillation of frequency f to be sustained in resonant circuit 49. However when the diode is in its low-voltage state,the amplitude is insufficient to drive the diode to its negative-resistance region. The presence of oscillations in circuit 49 is detected by serial 66 and amplifier 68. In a modified circuit, Fig. 2 (not shown), a D. C. pulse source is used to supply the "read" signal for the y conductor instead of R. F. source 48 and a series resonant circuit connected in parallel with the diode replaces the circuit 49. The pulses from the R. F. pulse source may have a sawtooth envelope, diminishing with time, to ensure that the diode will retain its high-voltage state even after the application of a read-out pulse. Specification 765, 465 is referred to.
Patent GB-721581-A (GB)
Title: New or improved apparatus for the aeration of barley and like cereals
IPC: C12C1/02
Filed: 1949-10-25
Abstract: 721,581. Air &c. compressors. PORTEUS, G. Nov. 20, 1950. [Oct. 25, 1949] No. 27336/49. Class 8 (1). [Also in Group VI] An electrically driven compressor 2 supplying predetermined quantities of air; gas or vapour at predetermined intervals of time to a cistern 1 for steeping barley or like cereals is controlled by a switch 5 itself controlled by a time switch 12 controlling a solenoid or electric motor which operates a valve 10 in the air or gas supply pipe. Thus the compressor 2 which is driven by an electric motor 7 is in operation so long as the valve 10 is open. As shown several cisterns 1 are supplied from a main pipe 3 having branches 8 each with an electric motor operated valve 10 and a stop cock 13. The switch 5 and the time switches 12 with their indicator lights 11 are grouped together on a panel 6. Each time switch 12 and electric motor may be associated with a three position switch which in one position connects up the motor to run under the control of its time switch, in a second position breaks the circuit and stops the valve 10 from opening, and in a third position, cuts out the time switch so that the valve remains open indefinitely. The switch 5 may also be operated manually.
Patent GB-242306-A (GB)
Title: Process for manufacturing dye stuffs
IPC: C09B3/14
Filed: 1925-10-30
Abstract: Dyestuffs are prepared by treating diaroyl-halogenperylenes with basic alkali or alkaline earth metal compounds at a high temperature, preferably in the presence of an organic solvent. According to the example, 4 : 10-dibenzoyl-3 : 9-dibromperylene is treated with powdered caustic potash in boiling aniline or with molten alkali; the product dyes cotton blue from a blue vat.  The Specification as open to inspection under Sect. 91 (3) (a) includes examples in which (1) dichlorperylene, benzoyl chloride and aluminium chloride are heated together in boiling carbon bisulphide; the product crystallizes from nitrobenzene in brownish yellow needles; (2) dibenzoyldichlorperylene is heated to boiling with solid caustic alkali in quinoline; (3) dichlorperylene is heated in boiling carbon bisulphide with p-chlorbenzoyl chloride and anhydrous aluminium chloride; the product crystallizes from xylene in orange needles of m.p. 355 DEG  C.; (4) di-p-chlorbenzoyl-dichlorperylene and powdered caustic potash are heated together in boiling quinoline; the product dyes cotton violet blue from a blue vat; (5) dichlorperylene of m.p. 280-1 DEG  C. is mixed with p-toluic acid chloride, aluminium chloride and carbon bisulphide, and heated to boiling; the resulting di-p-toluyl compound is then heated with powdered caustic potash in boiling quinoline, yielding a compound which dyes cotton violet from a blue vat; (6) dichlorperylene and either o- or m-toluic acid chloride are heated with aluminium chloride in boiling carbon bisulphide; the intermediate products so obtained are then heated with solid caustic potash in quinoline, producing substances which dye cotton bluish violet and violet respectively; (7) the intermediate compound obtained by heating dichlorperylene with a -naphthoyl chloride and aluminium chloride in carbon bisulphide is treated with caustic potash in boiling quinoline; the product dyes cotton blue.  This subject-matter does not appear in the Specification as accepted.
Patent GB-486947-A (GB)
Title: Improvements in and relating to the wrapping of sweetmeats and other articles
IPC: B65B61/06
Filed: 1936-10-08
Abstract: 486,947. Wrapping-machines. LOESCH, M., and WALTHER, E. Oct. 8,1936, No. 27363. [Class 94 (i)] A web of wrapping-material is cut obliquely to the run of the web by severing means capable of being set and locked at the desired angle. As shown, the pivot of the cutter is mounted on an arm 5 rotatably supported on a bracket 7 adjustably secured to the machine by a bolt 10 and slot 6. The arm 5 is provided with an extension threaded to co-operate with a boss 15 having a handle 16 and mounted on a spindle 13. When the arm 5 has been turned to dispose the cutter at the desired angle the boss 15 may be rotated to clamp it in position. Specification 413,546 is referred to.
Patent GB-1493727-A (GB)
Title: Yarn package and method for making the same
IPC: B65D75/00
Filed: 1975-06-27
Abstract: 1493727 Method for making a yarn package ATLANTIC GUMMED PAPER CORP 27 June 1975 [28 June 1974] 27375/75 Headings B8M and B8C A yarn package comprises a hollow cake of yarn 10 which is formed by winding successive layers of yarn upon a removable forming tube 12, peel-away adhesive means such as double pressure-sensitive tapes 36 (four such tapes are used in this embodiment) attached to the outer layers of the cake 10, a plastics cover 48 heatshrunk to provide a snug-fit on the cake 10, the tapes 36 releasably bonding the outer layers of yarn of the cake 10 to the interior surface of the cover 48 to prevent collapse of the residual portion of the yarn cake 10 as yarn turns in the outermost layers of the cake 10 are withdrawn, and protective bumper rings 38, 54 disposed at the ends of the cake 10 to form protective covers for the ends. The leading and the trailing ends 26, 28 of the cake 10 are located adjacent one of its ends and are connected to the exterior surface of the cover 48 as at 50, 52 by means of tapes for ready accessibility for yarn withdrawal. The cake 10 may have frustoconical end sections 16, 18 which are nested in complementarily shaped bumper rings 38, 54. The adhesive tapes 36 may be replaced by adhesives lightly sprayed on the exterior of the cake surface. The bumper ring 38 over which the cover 48 is heat-shrunk is moulded from foamed plastics such as polystyrene. Both the rings may be placed after the plastics cover 48 has been heat-shrunk over the cake 10. The ring may be replaced by a foamed plastics tray provided with a plurality of nesting holes for the cakes 10. The rings may have different shapes. The rings or trays may be designed with opposed nesting surfaces for nesting ends of different cakes. The trailing end 28 of one cake may be bonded to the leading end of another cake for a continuous yarn withdrawal. The cakes may have different shapes, Figs. 2 and 3 (not shown). In another embodiment a pair of cakes (10a), (10b) are supported with their axes oblique to each other ensuring that the feeding of yarn through an eyelet (56), when the supply shifts from cake (10a) to (10b) does not produce a snarl or tangle, Fig. 8 (not shown).
Patent GB-242639-A (GB)
Title: Improved fluid motor or meter
IPC: G01F3/18
Filed: 1925-11-02
Abstract: 242,639. Gresham, E. G. Nov. 7, 1924, [Convention date]. Spring gears operating in both directions.-In a motor comprising cylinders 1, 2, Figs. 3 and 5, reciprocating on fixed pistons 6, 7, the spindle of an oscillating valve 15 carries a lever 29, connected by a spring 35 to a lever 31 loose on the spindle and having a slot engaged by a pin 36. Stop pins 24 - - 27 are provided.
Patent GB-1471662-A (GB)
Title: Stackable and interlockable fibre-board packs and their production
IPC: B65D5/00
Filed: 1974-07-23
Abstract: 1471662 Stackable cardboard cartons GREENWICH PACKAGING Ltd 23 July 1974 [8 June 1973] 27490/73 Heading B8P A stackable carton includes a pair of end side walls 30, 32 provided at their upper edges with a pair of projections 34 and at their lower edges with a pair of recesses 36. During stacking of the cartons the projections on one carton are received by the recesses of its neighbour. The carton is erected from a blank comprising a central panel 10, which forms the base of the carton and side or end wall forming panels 14, 16, 18, 20 each of which is provided at its free end with a top flap 22, 24, 26, 28. Panels 16 and 20 are provided with folding flaps 30 or 32 destined to fold over side walls 14 and 18 and carrying projections 34 and recesses 30 to facilitate stacking. In erecting the carton, use is made of a former comprising a stiff sheet 38 of plastics material having upstanding projections 40, 42, 44, 46, 48 and 50, the inner edges of which lie on an imaginary rectangle defined by the central panel of the blank. In use, the blank is pushed on to the former, the projections causing the side panels 14, 16, 18 and 20 to be erected after which the top flaps and the folding flaps are folded into position, the whole being secured by adhesive tape perhaps previously laid in the former as indicated at 54 in Fig. 4. The blank may be of a sandwich construction comprising flat and corrugated cardboard sheets.
Patent GB-741205-A (GB)
Title: Indexing mechanism
Inventor: RUSHER JOHN JOSEPH
IPC: B23Q16/02
Filed: 1953-10-07
Abstract: 741,205. Step-by-step toothed gearing. CHAMPION SPARK PLUG CO. Oct. 7, 1953, No. 27572/53. Classes 80(1) and 80(3) Step-by-step indexing mechanism for a table 1 comprises a pinion 4 which is intermittently engaged by segmental rack teeth 7 on a reciprocating sleeve 6, the sleeve being rotatable on but axially movable with a bar 5 which is reciprocated by fluid pressure applied to cylinders 10, 12, and having, in addition to the teeth 7, a blank space 8 and longitudinal teeth 16 permanently engaged by a fluidpressure-operated rack 17 which effects the engagement and disengagement of the teeth 7. The rack 17 is operated by a cylinder 22 axially adjusted by a screw 26, and the cylinders 10, 12, 22 are supplied through valves 35, 34 controlled by a motor-driven cam shaft 40 so that for each cycle of operation comprising one revolution of the shaft 40, (1) the rack 17 is raised to turn the sleeve 6 and disengage the rack teeth 7, (2) the bar 5 and sleeve 6 are moved to the left, (3) the rack 17 is lowered to re-engage the teeth 7, and (4) the bar 5 and sleeve 6 are moved to the right and index the pinion 4 by one step. The teeth 7 extend over approximately 90 degrees of the sleeve circumference, while the teeth 16 extend over an angle greater than 90 degrees. The fluid system includes a pump 30 and reservoir 31. In a modification a locking pin movable with the rack 17 engages sockets in the underside of the table 1 to hold the table stationary while the bar 5 is moved to the left.
Patent GB-912709-A (GB)
Title: Improvements in or relating to percussion fuses for unrotated shells
IPC: F42C9/14
Filed: 1959-08-12
Abstract: 912,709. Projectile fuzes. JUNGHANS A.G. GEB. Aug. 12, 1959 [Aug. 12, 1958], No. 27580/59. Class 9 (1). A percussion fuze for unrotated projectiles has an axially-bored body 10 housing a striker 12 having a tapered head 16a surrounded by a ring 47. The shank of a firing pin 16 is engaged in the striker, the pin being locked during transport by a pivoted slide 21 which has a bent-up end forming a finger 23 bearing against the outer sleeve 27 of a two-part brake mechanism surrounding the striker and controlling the arming of the fuze. A stud 33 engaged in a longitudinal groove 32 prevents rotation of the sleeve 27, which is provided with a rack 35 engaging a pinion 24 rigidly connected to an escapement wheel 25 controlled by an anchor, Fig. 7. A spring 28a housed in the sleeve 27 supports a second sleeve 22 which is also supported by a spring 28. To render the fuze sensitive to oblique impact, a casing 11 covering the body 10 has an extension 43 filled with elastic material, e.g. a thermoplastic vinyl resin, in which a cone 46 of sheet metal may be embedded. The cone bears against the striker head and is perforated. On launching a projectile fitted with the fuze, the sleeve 22 sets back due to inertia and stresses the driving spring 28a. At the same time, support spring 28 is compressed and a U-shaped spring 29 snaps into a groove 30 to hold the sleeve 22 retracted. As the projectile decelerates, the spring 28a drives the two sleeves forward, at a rate controlled by the rack and pinion, until the finger 23 is freed. The slide 21 is then rotated by its spring 41 and frees the firing-pin for operation on impact.
Patent GB-760189-A (GB)
Title: Improvements in or relating to a die-casting machine
IPC: B29C45/03
Filed: 1954-09-24
Abstract: 760,189. Casting-machines. RI-RI WERKE AKT.-GES. Sept. 24, 1954 [Sept. 26, 1953], No. 27619/54. Class 83 (1). [Also in Group V] A die-casting machine comprises an hydraulically-operated device 2 for controlling a vertically-movable die 25, a hydraulically-operated device 10 for injecting the molten metal or plastic material, and a nozzle 15 extended by a longitudinally movable runner-distributing piece 23. The upper die 26 is bolted to a head 7 which can be released by bolts 9 to be swung about a central pivot 8. The lower die is clamped in operative position by pistons 3. In operation, when the pressure of the clamping-pistons 3 has reached a predetermined pressure, the gate 23 and the nozzle 15 are moved forwardly by hydraulic means 22, 20. The injection-plunger 12 is then moved sharply through the chamber 13 to force the charge into a heating chamber 19 and the previously-heated material into the die. During its movements, the plunger 12 opens and closes a shutter 31 to allow a further charge to enter the chamber 13 from a hopper 16 by way of a chamber 18. When casting sliding-clasp fastener-elements on to stringers, new stringers may be laid in their correct positions by a slide moving over the lower die 1 when in its retracted position.
Patent GB-819592-A (GB)
Title: Light-sensitive photographic material and methods of producing such material
IPC: G03C1/93
Filed: 1956-09-10
Abstract: 819,592. Light-sensitive photographic materials. GEVAERT PHOTO-PRODUCTEN, N.V. Sept. 10, 1956 [Sent. 13, 1955], No. 27659/56. Class 98(2) To a stretched polystyrene photographic support is applied a coating consisting of one or more condensation polymeric esters or ethers in a mixed solvent containing at least one alcohol and ethylene chlor- @ydrin. Such mixed solvent does not dis- @rb the orientation of the polystyrene @olecules obtained by the stretching, so @that the mechanical properties of the sup- @port are retained and evaporation thereof @aves a layer adherent to the support and @itable to receive a further, subbing, @yer and then a light-sensitive gelatinosilver salt layer. In Example 1 the polystyrene support stretched in both directions is coated with a resin prepared by heating equimolecular proportions of maleic amhydride and ethyleneglycol dissolved in an acetone, methanol and ethylene chlorhydrin mixture, subbed with a cellulose nitrate and gelatine mixture dissolved in methanol, ethyl acetate glyexal and salicyclic acid with a small proportion of water and then provided with the light-sensitive layer. Examples 2-6 are similar, and Examples 7, 8 use a resin prepared by heating aqueous sodium hydroxide with 2, 2-bis (4-oxyphenyl) propane and epichlorhydrin in a similar solvent mixture and this is followed with a subbing layer as of the prior examples. The coating of polystyrene objects with acrylic or methacrylic resins and combinations of these with cellulose esters is described as being known.
Patent GB-452353-A (GB)
Title: Improvements in or relating to electro-static condensers
IPC: H01G4/015
Filed: 1935-02-21
Abstract: 452,353. Condensers. BOSCH AKT.- GES., R., 4, Militõrstrasse, Stuttgart, Germany. Feb. 21, 1935, No. 27732. Convention date, March 15, 1934. Divided out of 453,939. [Class 38 (ii)] In condensers having thin dielectric strips bearing metallic coatings such as are dissipated from the region of any puncture due to over-stressing, the dielectric strips a, bare wider than the metallic coatings c, d which extend to the opposite edges of their strips on alternate layers. Two examples are shown in one of which the metal-bearing strips are laterally displaced. Additional strips f, g may be interposed. The edges of the metal coatings extending to the same side are connected together and to a lead-in as by filling in the spaces between the projecting foils with sprayed poured or dusted metal. The metallized strips may be metal coated on both sides. For the strips, paper, cellulose derivatives or polymerized vinyl compounds may be used.
Patent GB-146772-A (GB)
Title: Improvements in and connected with safety devices for winding cages and the like
IPC: B66B5/24
Filed: 1919-11-10
Abstract: 146,772. Gittins, J., Gittins, A. L., Gittins, M., and Roberts, G. E. Nov. 10, 1919. Catch gear of mine-cage type.-Safety suspending-gear for mine cages &c. of the type in which each guide-rope b is fitted with a lever grip g connected by a chain k to the winding-rope ring f or to the upper end of one of the cage suspending chains, is provided with auxiliary chains m connecting the levers to the lower parts of the cage suspending chains.
Patent GB-158121-A (GB)
Title: Improvements in or relating to structures for residential dwellings
IPC: E04F19/00
Filed: 1919-11-10
Abstract: 158,121. Smith, M. M. Nov. 10, 1919. Dwellings and rooms, arrangement and design of.-A unit structure for a dwelling is made rectangular in plan and comprises four rooms A, B, C, D which occupy approximately two-thirds of the total area and are grouped about a single chimney structure containing' one or more flues. The remaining one-third comprises a central lobby F communicating with the kitchen B and parlour A, a third 'bedroom G, a bathroom and lavatory H, coal-cellar J, larder K and the entrance landing L. The unit can be used either as a single dwelling or as part of a multiple unit house, the blank wall adjoining the rooms C, D enabling two units to be placed end to end. The bath may be placed in the kitchen B instead of being in the same compartment as the lavatory. The structure may be built according to the method described in Specification 154,392, [Class 20 (iv), Floors &c.]. Guttering around the roof may be dispensed with, the drip being received upon a concrete or other strip having a gutter or drain moulded therein. The flooring is of concrete with boards laid over it.
Patent GB-244431-A (GB)
Title: Improvements in or relating to the case hardening of steel articles
IPC: C23C8/66
Filed: 1925-11-06
Abstract: 244,431. Rheinische Metallwaarenund Maschinenfabrik. Dec. 13, 1924, [Convention date]. Addition to 242,978. Case-hardening; annealing.-In the process of case-hardening steel articles described in the parent Specification, the carburized parts of the article are heated, in a similar manner, to the hardening temperature for a short distance beyond the carburized layer and then quenched in a hardening liquid in order to render the carburized layer glass-hard and to impart ordinary hardening to the layer of material adjacent the carburized zone. The articles before heating to the hardening temperature may be treated as described in the parent Specification.
Patent GB-984650-A (GB)
Title: Improvements in or relating to fertilisers
Inventor: MCARTHUR JAMES GORDON
IPC: C05B19/00
Filed: 1963-07-15
Abstract: A prilled fertilizer comprises ammonium nitrate and mono- and di-ammonium phosphate, the ratio of monoto di-ammonium phosphate being 1/9 to 19.  10-65% of phosphate based on the ammonium nitrate may be present.  The composition to be prilled may contain 3-8% of water.  Prilling may be effected at 140-160 DEG  C. After drying, the prills may be coated with diatomaceous earth.