baber/WOPTO huggingface dataset:
Patent GB-746947-A (GB)
Title: Improvements in electrical integrating apparatus
Filed: 1952-09-19
Abstract: 746,947. Pulse counting. SANGAMO WESTON, Ltd. Sept. 19, 1952 [Sept. 29, 1951], No. 23607/52. Class 37. [Also in Group XL (b)] Apparatus for time integrating a variable quantity such as the current output of a photoelectric cell comprises a moving coil relay-type instrument which changes over contacts at a rate proportional to the quantity to be integrated so as to operate a counter at the completion of each cycle of contact closure. As shown, the output of a photo-electric cell 10 is shunted by one of resistors 12, 13 and applied in one direction or the other to the windings of sensitive relay 15 according to which of the contacts of reversing relay 16 is made. The moving coil relay 14 moves at a rate proportional to the current energizing it, such a relay is described in Specification 538,160, When the moving member reaches its other contacts a current flows from battery 45 to change over reversing relays 16, 40. The change over of relay 16 means that the photocell output is applied, in the opposite direction, to relay 15 which then disconnects its side contact and moves towards the other. When relay 40 changes it completes a series circuit with battery 48 the field windings of a step by step motor 20 and one of condensers 46, 47. A charging pulse thus flows through the field windings and the motor moves a counter 34 on one step. At the next reversal of relay 40 the " charging " pulse flows to the other condenser. The contacts of relays 16 and 40 are lightly magnetic so that they do not part until the energizing field is applied to the relays by the contacts of relay 16. Capacitors 71, 72 shunting the coils of reversing relays 16, 40 prevent contact bounce. A resistor 73 and condenser 74 may be connected as shown to introduce a surge through the coil of sensitive relay 15 to prevent shunting of its contacts.
Patent GB-1475128-A (GB)
Title: Production of microcapsules
IPC: B01J13/18
Filed: 1974-05-28
Abstract: 1475128 3,9 - Bis - (aminoalkyl) - 2,4,8,10- tetraoxaspiro(5,5)undecanes FUJI PHOTO FILM CO Ltd 28 May 1974 [28 May 1973] 23672/74 Heading C2C [Also in Division B8] Heterocyclic diamines having the formula wherein R<SP>1</SP> and R<SP>1</SP> each represents H or a C 1 -C 4  alkyl group, and R<SP>2</SP> and R<SP>2'</SP> each represents a C 1 -C 7  straight or branched chain alkylene group, or an addition product or a condensation product thereof are prepared by known methods via the corresponding cyanoalkyl derivatives.
Patent GB-969184-A (GB)
Title: Spray nozzle
Inventor: BAKER DONALD BROOKE
IPC: B05B15/50
Filed: 1963-06-14
Abstract: 969,184. Nozzles. BIRD MACHINE CO. June 14, 1963, No. 23755/63. Addition to 885,831. Heading B2F. In the spray nozzle of the parent Specification the ball valve member is replaced by a valve member 96 having an elongated shape with bulbous ends and having an axial passageway 98 extending therethrough. A spray deflector 86 is held in place by screw threads 88.
Patent GB-492843-A (GB)
Title: Improved device comprising a gas-filled electric discharge tube and material excitedto luminescence by the discharge
IPC: C09K11/56
Filed: 1937-08-31
Abstract: 492,843. Discharge lamps. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Aug. 31, 1937, No. 23822. Convention date, Sept. 3, 1936. [Class 39 (i)] [Also in Group XX] A gas- or vapour-filled electric discharge tube is surrounded by a closed bulb free from water and containing a luminescent sulphide layer which has been freed from water - soluble halides, as by repeated extraction with distilled water. As shown, in a tube known per se, consisting of a quartz container 1 having electrodes connected to wires 4, 5 which support it in an outer glass envelope 2, this envelope is coated internally with a layer of zinc sulphide purified as described. The container has a filling of rare gas, and also contains mercury at a pressure exceeding 5 atmospheres. The envelope 2 may be filled with an inert gas such as nitrogen after removing air and all traces of water.
Patent GB-863470-A (GB)
Title: High frequency apparatus
IPC: H01J23/46
Filed: 1957-07-26
Abstract: 863,470. Matching impedances. VARIAN ASSOCIATES. July 26, 1957 [Aug. 16, 1956], No. 23826/57. Class 40(8) A coaxial line is provided with a gas-tight window comprising a cylindrical dielectric member disposed with its axis parallel to the conductors of the line. As shown, the window 14, made e.g. of a ceramic, is spaced from the inner and outer conductors 9, 17 of the line and is secured by metallizing to a frame consisting of upper and lower annular members 13, 15 made of "Kovar" (Registered Trade Mark). The upper frame member is affixed to a copper flange 12 on the inner conductor 9 whilst the lower frame member is carried by a yieldable apertured cup member 16 brazed to a hollow block 18 forming part of the outer conductor. The block also forms part of the input coupling to a resonant cavity 1 and is provided with an oval bore 21 communicating with the interior of the cavity. An extension of the inner conductor 9 passes through the oval bore and terminates in an input loop 23. A capacitive conductive slug 24 compensates the inductive effect of the loop, the two elements forming a resonant circuit tuned to a frequency such that the coupling to the cavity increases with frequency. The capacitive reactance of the window 14 is compensated by increasing the internal diameter of the outer conductor and decreasing the diameter of the inner conductor in the vicinity of the window assembly. Specification 863,471 is referred to.
Patent GB-662912-A (GB)
Title: Improvements in or connected with a method of manufacturing pirns
IPC: B21C37/15
Filed: 1949-09-16
Abstract: 662,912. Making pirns. SMITH, S. July 24, 1950 [Sept. 16, 1949], No. 23872/49. Class 83 (ii). [Also in Group IX] A method of making a metal pirn comprises forming a reduced end a<SP>2</SP> on a metal tube a and applying end pressure by a member b having a shoulder b<SP>1</SP> which abuts the reduced end a<SP>2</SP> and forces' it inwards to form a double thickness portion spaced from the main tube by a clearance a<SP>7</SP>, Fig. 5. The clearance allows the subsequent formation of grooves a<SP>6</SP> for the reception of spring loops. The remainder of the tube a<SP>5</SP> is then reduced to the required size by rotary swaging and the other end also formed with a double inturned-portion a<SP>9</SP>, Fig. 1.
Patent GB-1105469-A (GB)
Title: Salts of dehydroabietylguanidine and processes for their manufacture
IPC: A61K31/00
Filed: 1966-07-12
Abstract: Novel salts of dehydroabietylguanidine with polyhydroxy-monocarboxylic acids and salts of dehydroabietylguanidine with polyhydroxy - dicarboxylic acids are obtained in a process wherein (a) dehydroabietylguanidine is neutralized with such an acid; or (b) another salt of dehydroabietylguanidine is subjected to an acid exchange reaction with such an acid; or (c) dehydroabietylamine is reacted with an isothiuronium salt of such an acid; or (d) a dehydroabietylamine salt of such an acid is reacted with cyanamide.
Patent GB-1040943-A (GB)
Title: Earth drilling machines
IPC: E21B3/02
Filed: 1963-06-17
Abstract: 1,040,943. Boring earth &c. E. TONTI, E. TONTI, S. TONTI and A. TONTI. June 17, 1963 [June 16, 1962], No. 24064/63. Heading E1F. In boring apparatus adapted to be mounted on a vehicle the rods 16 supporting the drill (not shown) are vertically movable within a rotary drive member A on which is rotatably mounted a spool C for the rod supporting cable 18. The member A carries rollers 20, Fig. 4 (not shown), which engage longitudinal fins 19 on the drill rods. The cable is guided to the spool from the interior of the member A by means of pulleys 11, 12, x. The spool and member A are rotated at different speeds by gearing 8, 9 and 5, 6 driven from a reversible gearbox mounted onthe vehicle.
Patent GB-470599-A (GB)
Title: Improvements in Music-Typewriters
Inventor: RUNDSTATLER GUST
IPC: B41J3/34
Filed: 1936-09-04
Abstract: 470,599. Typewriters. RUNDSTATLER, G., and NOTOTYP - RUNDSTATLER GES. Sept. 4, 1936, No. 24246. [Class 100 (iv)] Machines for writing music ; types ; keyboards.-A type-bar or type-lever machine of standard form is provided with types for printing notes and the conventional signs, and each note-printing type-head is provided with a black-note type and a white-note type, which are of the same pitch and are selected by the shift-mechanism. Figs. 2 and 3 show the keyboard and types of a single-shift machine, the note-printing keys and types being arranged in the middle. The typeheads may be curved to fit the platen-roller. The note-types print also the staff-lines, the types being made slightly narrower than the type-heads to permit the lines to show. To permit printing of chords, the note-keys are arranged to act as dead-keys. The stemtypes have the stems arranged at one side thereof so as to join the previously printed notes. The types for large signs, such as the clefs, may be divided vertically and mounted on separate type-bars. The types for printing ties are half as thick as the distance between the staff-lines, this distance being equal to one line-spacing movement. To facilitate printing of the time-signatures, the numeral types are so arranged that the 4 and 8 types, and the remaining types print on the lower half and upper half of the staff respectively. The position of the staff-lines and ledger-lines is shown by means of lines on an indicator secured to the type-guide. The indicator-lines may be of different colours.
Patent GB-1350627-A (GB)
Title: Liquid crystal electro-optical modulators
IPC: G02F1/133
Filed: 1971-04-19
Abstract: 1350627 Modulating light THOMSON-CSF 19 April 1971 [17 March 1970] 24253/71 Heading H4F The threshold potential at which a nematic liquid crystal cell exhibits dynamic scattering is a function of frequency as shown in Fig. 4, the portion above the curve being the region for scattering. In a method of operating such a cell, when the cell is turned off, an A.C. potential lying at a point below the curve and of an amplitude greater than the D.C. threshold level M continues to be applied, thereby reducing the turn-off time. In a first embodiment, Fig. 1 (not shown), the A.C. potential has a constant amplitude and frequency, and a control circuit superimposes a D.C. potential thereupon when the cell is to be operated. In other embodiments, Figs. 2 and 3 (not shown), the A.C. operator is modulated in amplitude and/or frequency, curves A-B, C-D, E-F, Fig. 4, by a control signal to operate the cell.
Patent GB-207885-A (GB)
Title: Improvements in or relating to pianoforte and like keyboard instruments
IPC: G10C3/02
Filed: 1922-09-07
Abstract: 207,885. Crowley, J. H., and Crowley & Co., J. H. Sept. 7, 1922. Pianofortes combined with receptacles for music.-The key bottom is made hollow, being composed of a longitudinal back brace and transverse braces 2 connecting upper and lower longitudinal members 4 forming music receptacles which may be closed by the hinged integral or divided moulding 6, or by sliding covers. The compartments may be lined. Specification 20279/92is referred to.
Patent GB-1348413-A (GB)
Title: Surface treated polyester shaped articles
IPC: C08J5/06
Filed: 1971-04-19
Abstract: 1348413 Treating polyester filaments FIBER INDUSTRIES Inc 19 April 1971 [26 Feb 1970] 24312/71 Heading B5B Polyester filaments suitable for use as tyre cord and having an improved adhesion to rubber are prepared by contacting the surface of undrawn filaments with a crystallizing agent and then drawing the filaments under conditions such that chemical reaction between the filaments and the crystallizing agent is inhibited, the filaments having a surface energy (measured by determining the contact angle between the surface of the filament after the crystallizing agent has been removed and a suitable solvent) between 45 and 53 dynes/cm. Suitable crystallizing agents (compounds which at least partially crystallize the surface of the amorphous polymer) are the polyepoxides, polyvinyl alcohol, polyvinylacetate and polyethylene glycolpolyethylene terephthalate copolymer, aliphatic glycidyl ethers, aromatic glycidyl ethers and aromatic glycidyl esters being preferred. In examples filaments of polyethylene terephthalate or the reaction product of ethylglycol and 1,2-diphenoxyethane-4,41-dicarboxylic acid are melt extruded from a spinneret 1 (Fig. 2), contacted with a spin finish including the crystallizing agent by a roll and trough assembly 2 and are then passed to pre-tension rolls 5 and 6, heated feed rolls 8 and draw rolls 9 and 10, before passing through heated chamber 11 containing further draw rolls 12 to wind-up unit 13. The crystallizing agent-finish compositions applied to the filaments by roller assembly 2 are mixtures containing the glycidyl ether prepared from epichlorohydrin and glycerine or an aliphatic triol, and a mixture containing the copolymer of polyethylene glycol and polyethylene terephthalate.
Patent GB-1012139-A (GB)
Title: Method of and apparatus for the regulation of the weighting absorption of fibrous web material
IPC: D06B23/28
Filed: 1962-06-25
Abstract: 1,012,139. Automatic concentration control. TEXA MASCHINENGESELLSCHAFT m.b.H. [trading as GEB SUCKER]. June 25, 1962, No. 24315/62. Heading G3R. Twice as much treatment medium is supplied to a web as it is desired shall be absorbed, and the concentration of the medium is adjusted to ensure that the measured excess is equal to that to be absorbed. As shown fibre F is fed by rolls 2a-2d through a trough 1 containing dressing material. Fresh dressing material is withdrawn from a tank 8 by a pump 7 and passed to a chamber 9 where it is mixed with superheated steam and/or hot water supplied through conduits 11 and 12 respectively. The mixture is stirred by a motor 34 and supplied through a conduit 3 to trough 1. Dressing material not taken up by the fibre flows into a container 5 from which it is withdrawn by a pump 6 and returned to trough 1 through conduit 3. By operating valves 31, 33, 62, 72 the outputs of pumps 6 and 7 may be temporarily diverted to measuring devices 63, 73 with the aid of which the output of material from each pump may be adjusted to equal that taken up by the fibre so that, during normal operation, twice as much dressing as is necessary is supplied. Variations in the flow of material into container 5, representing variations in the amount of material taken up by the fibre, cause a plastic coated float 15 to operate an inductive pick-off 16 associated with an indicating instrument 17 the pointer of which operates contacts (not shown) controlling the opening and closing of a steam valve 13 and, for large variations, the opening and closing of a hot water valve 14 to vary the concentration of the dressing material and thus restore the amount of material taken up by the fibre to the desired value. The actuators of valves 13 and 14 are operated intermittently to prevent hunting. Pumps 6 and 7 are driven from the main machine shafting 30 through gearing 61, 71 which may be variable, but, when the machine is running slowly or stopped, a motor 64 may ensure circulation of the dressing material by pump 6. Under the latter conditions valves 31, 32 may be operated so that the output of pump 6 is supplied through chamber 9. Output from pump 6 may also pass through a valve 35 to provide additional dressing above the rolls if desired. Application to the glueing of paper webs and the impregnation of cloth webs is referred to.
Patent GB-1489291-A (GB)
Title: Open roof assemblies for vehicles
IPC: B60J7/185
Filed: 1975-06-06
Abstract: 1489291 Vehicle roof operating mechanism WEATHERSHIELDS Ltd 24 May 1976 [6 June 1975] 24350/75 Heading E2M  In a mechanism for opening a vehicle roof assembly provided with a flexible fabric covering (not shown) supported by cross members adapted to slide on guides extending along each side of an opening, the front end of the covering being attached to a transverse flap 16 which is pivotally attached to a front cross member 1 and adapted to be drawn downwardly into close sealing engagement with the roof around the front end of the opening, a handle-operated roof tightening means is coupled to the flap 16 through a pair of rods 11 which are moved relatively towards and away from each other with respect to the front cross-member 1, the free ends of the rods operating in downwardly depending inclined slots in the flap 16 to tighten the covering and to ensure close sealing engagement with the roof around the front opening. The handle operating mechanism comprises a rotatable boss 3 (Figure 3) and two superimposed plates 6, 7 mounted thereon, the first plate 6 being pivotally connected to an eccentrically mounted hook 8 for engagement with a keeper 9 in a frame at the front of the opening, the second plate 7 being pivotally connected to the rods 11 by fittings 12. The handle 4 may be retracted into the position shown in Figure 4 when the vehicle roof has been closed.
Patent GB-245839-A (GB)
Title: Improvements in wireless telephone receiving systems
IPC: H03F1/50
Filed: 1924-10-14
Abstract: 245,839. Willans, P. W. Oct. 14, 1924. Amplifying systems, thermionic, are provided with reaction between the input and output circuits to compensate for the distortion of an inductive intervalve audio frequency coupling device. The reactive coupling 8 may consist of a condenser to reduce the effect of the self-capacity of the transformer, or an inductance to increase the effective inductance of the transformer, or a resistance may be employed to increase the inphase component of amplification. A combination may be used and an impedance 13 is included in the grid circuit in series with the input. A reaction transformer 11, 12 may be employed to compensate for the magnetic leakage in the transformer.
Patent GB-1522232-A (GB)
Title: Method for the removal of aflatoxin from cereals oil seeds and feedstuffs
IPC: A23L5/20
Filed: 1976-06-14
Abstract: 1522232 Removing aflatoxin from cereals, seeds and feedstuffs ASAHI KASEI KOGYO KK 14 June 1976 [17 June 1975] 24497/76 Heading A2Q Alfatoxin is removed from cereals, seeds, and animal feedstuffs derived therefrom by contacting them with liquid dimethyl ether and water at temperature not higher than that at which any proteins present are denatured, the water being in an amount of 2 to 8% by weight of the liquid dimethyl ether. The material treated may be grain such as rice, peanuts, cotton seed, and meals and other products thereof. The process is carried out under pressure, and sufficient water may be added to the extracting liquid to allow for repeated extraction with dimethyl ether in liquid form.
Patent GB-379103-A (GB)
Title: Improvements in and relating to tables
IPC: A47B1/03
Filed: 1931-09-01
Abstract: 379,103. Tables. WINKLER, K., (trading as FI-TI-WI FINSTERWALDER TISCHFABRIK K. WINKLER), Finsterwalde, Neider Lausitz, Germany. Sept. 1, 1931, No. 24517. Convention date, May 1, 1930. [Class 52 (iii).] Four leaves 32 .. 35 hinged at 37 upon two pivotal axes can be so folded as to be superposed on the leaf 34. This bottom leaf has straps holding it to the cross arm 36 of a hinged bow, and after piling the leaves the pile can be slid laterally along the crossarm to bring the pile into alignment with the frame 31, when by swinging over the bow the pile will lie over the frame. The Specification as open to inspection under Sect. 91 (3) (a) comprises also constructions of tables of which that shown in Fig. 3 (Cancelled) is an example, having a divisible top and folding leaves 6, 7 normally housed under the sliding sections 1, 2 of the top, but hinged to rockable bows 8, 12 in such a way as to be capable of endwise sliding to take up a partially superposed position under the closed table top or to lie centrally when one extension leaf only is in use between the sections 1, 2. The bows 8, 12 on rocking upwards as shown, enable the lower folded half of the extension leaves to rise to table level even though the folded leaves are partially superposed. In a modification the hinges 13 are slidable in guides at right-angles to the bars 8, 12, for the same purpose and in a further modification the bars are not rockable but sufficient sliding space is provided to enable the various leaves to be opened out without interference by other unfolded leaves. This subject-matter does not appear in the Specification as accepted.
Patent GB-246232-A (GB)
Abstract: 246,232. Elliot, G. Nov. 3, 1924. Syringes. - A syringe of the kind described in Specification 194,552 has a device for retaining the piston-rod within the cylinder which is invisible when the rod is in either its in or out position. The hollow piston-rod has a screw-threaded end 8 which can engage in a hole 5 tapped in a boss inside the cover 1. In a modification the rod carries a disc notched so that it can pass internal projections on the cylinder but on a part rotation will be retained by them. The disc may be of non-circular section and an opening of similar shape is formed by an internal shoulder on the cylinder.
Patent GB-930072-A (GB)
Title: Xerographic developing apparatus
Inventor: CRUMRINE HERBERT E
IPC: G03G15/08
Filed: 1959-07-17
Abstract: 930,072. Development of electrostatic charge images. RANK-XEROX Ltd. July 17, 1959, No. 24682/59. Class 98 (2). To avoid the defects known as " tearing " and " streaking " which occur in powder cloud development of xerographic or other electrostatic charge images, a developing apparatus is provided with two inlet slots located in an electrode element transversely of a development zone defined by the electrode element and a closely adjacent xerographic or other electrostatic image-bearing plate for flowing developer material into the development zone and an exhaust slot between the inlet slots for withdrawing excess developer from the development zone. Preferably, as shown, the apparatus comprises a manifold assembly having inlet slots 27 on opposite sides of an exhaust slot 35 with supplementary exhaust slots 42 flanking them. Powder cloud generators 28 feed the slots 27 via conduits 30 with if required the interposition of charging devices 29, e.g. a narrow tube through which electroscopic powder is passed in turbulent flow or a corona discharge device to obtain a more uniformly charged cloud and reduced pressure is applied over exhaust ducts 40, 45, dampers 47 (Fig. 1, not shown) being provided in each duct, the extracted developer being collected at 41. Rollers 12 carried by the frame of the developing apparatus allow the xerographic plate to move past the development electrode at a constant distance. The development electrode may be curved so as to conform to a xerographic drum surface.