baber/WOPTO huggingface dataset:
Patent GB-519869-A (GB)
Title: A method for the production of uniform milling products
IPC: B02C9/00
Filed: 1938-10-04
Abstract: 519,869. Roller mills. GEHLE, H. Oct. 4, 1938, No. 3915/37. [Class 59] [Also in Group I] In the manufacture of flour from grain the temperature or the humidity of the grain or milled products at any stage in the milling process is automatically varied in accordance with a measurable physical characteristic of the milled products during or after said milling stage. Alternatively, the temperature or humidity of the milled products during or after any stage in the milling process is automatically varied in accordance with a measureable physical characteristic of the grain when ready for milling. Thus the temperature of the grinding elements of a grinding-mill may be varied automatically according to the temperature of the grain or the milled products as these pass to or leave the mill; or the temperature or humidity of grain or of milled products during one of the milling steps may be automatically varied in accordance with the density of the milled products ; or the temperature or humidity of the grain passing to the milling devices may be automatically varied in accordance with the hardness of the semolina produced. As shown in Fig. 1, a thermometer 2 in the feed hopper of a roller mill is connected to a control device 4 for a valve 5 on a pipe 6 admitting cooling water to the rolls 7. Fig. 3 shows a device for influencing the humidity of the ground products after grinding. The ground material, introduced at 22, is conducted in a zig-zag path over sieves in a sifter 21 and discharged at 23. A thermometer 24 in the sifter is connected to a control device 26 for a valve 27 on a steam pipe 29 so that air, which is to be introduced into the sifter from a container 28, is moistened to a greater or less extent by the steam allowed to pass into the container ; the moistened air escapes from the sifter through pipes 31.
Patent GB-588411-A (GB)
Title: Improvements in or relating to the production of filaments, fibres and other shaped articles or forms from highly polymeric materials
IPC: C09D167/02
Filed: 1945-02-16
Abstract: In the manufacture of filaments, fibres, coatings and other shaped articles or forms from melts of highly polymeric linear polyesters or interpolyesters obtained from aromatic dicarboxylic acids and glycols, the polyesters are intensively dried before melting to expel water in any form and are maintained in the water-free condition during melting and up to the point of formation of the filaments or other articles.  The exclusion of water obviates or reduces any molecular degradation of the polyester.  Drying, which may be carried out in stages, is effected by heating the polyester at an elevated temperature below its melting point under a reduced pressure, preferably under a high vacuum, and the dried material is then melted under conditions such that water in any form does not come into contact therewith.  A drying agent, e.g. magnesium or barium perchlorate, magnesium or calcium chloride, calcium, aluminium or phosphorus oxides or silica gel, may be employed in the vicinity of the polyester to facilitate the drying operation.  Alternatively, drying may be facilitated by passing a stream of an oxygen-free gas, e.g. nitrogen, over the heated polyester.  In addition to the manufacture of filaments and fibres, the dry polyesters may be used for the manufacture of films, mouldings, coatings and adhesive unions.  Specified polyesters are those obtained from terephthalic acid and ethylene glycol, trimethylene glycol, tetramethylene glycol, hexamethylene glycol or decamethylene glycol; diphenoxyethane-4 : 41 - dicarboxylic acid, diphenoxypropane - 4 : 41-dicarboxylic acid, diphenoxybutane-4 : 41- dicarboxylic acid, diphenoxypentane - 4 : 41-dicarboxylic acid and ethylene glycol; diphenoxypentane-4 : 41-dicarboxylic acid and hexamethylene glycol; diphenoxyhexane - 4 : 41 - dicarboxylic acid and decamethylene glycol; naphthalene-2 : 6-dicarboxylic acid and hexamethylene glycol; diphenylmethane - 4 : 41 - dicarboxylic acid, a  : d -diphenylbutane 4 : 41 - dicarboxylic acid, naphthalene-2 : 6-dicarboxylic acid, naphthalene-2 : 7-dicarboxylic acid, 1 : 4-diphenoxybenzene - 41 : 411 - dicarboxylic acid, 1 : 4 - bis - (phenoxymethyl) - benzene - 41 : 411 - dicarboxylic acid, (phenoxymethyl) - benzene - 4 : 41-dicarboxylic acid, phenoxybenzene-4 : 41-dicarboxylic acid, a  : b -bis-(phenylthio)-ethane-4 : 41-dicarboxylic acid, or diphenylthioether-4 : 41-dicarboxylic acid and ethylene glycol. Examples are given in which in one case polyethylene terephthalate, and in another case polyethylene diphenoxyethane - 4 : 41 - dicar - boxylate is dried under reduced pressure at 90 DEG  C., and then at 200 DEG  C., and melt-spun into filaments. Specifications 578,079 and 579,462 are referred to.
Patent GB-848833-A (GB)
Title: Improvements in magnetic core memory devices
IPC: G11C19/06
Filed: 1957-02-06
Abstract: 848,833. Circuits employing bi-stable magnetic elements. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 6, 1957 [Feb. 9, 1956], No. 4038/57. Class 40 (9). [Also in Groups XIX and XXXV] A magnetic core storage device comprises a closed magnetic core 10 around which a main flux is established by a winding 22, one part of the core being divided into parallel legs A, B each of which has an aperture 20, 16 through which windings 14, 18 pass. Each of the legs A, B is of sufficient crosssection to carry all the main flux and this flux saturates core part C about which winding 22 is wound. With main flux established, energization of either winding 14, 18 causes a localized flux to be set up around its aperture and diverts any main flux in that leg to the other leg. Alternate energization of windings 14, 18 switches the main flux from leg A to leg B and back again, so that a binary " 1 " may be represented by main flux in leg A, and. a binary " 0 " by main flux in leg B. The direction of the main flux in this embodiment is immaterial. A sensing winding 24 or 24s links leg B or the outer portion thereof and to read the core the winding 18 is pulsed whereupon an output pulse in winding 24 represents a " 1 " and no output a " 0." In a modification (Fig. 6) arranged for non- destructive sensing, windings 30, 32 set up oppositely directed main fluxes for a " 1 " or a " 0 " respectively. Winding 34 is a set-up winding driving flux from section B into section A and 38 is a read winding driving flux from section A into B where it may be detected in a sense winding 36 or 36S. Shift register.-Fig. 5 illustrates a shift register utilizing the first device wherein 4 cores 10(1) to 10(4) are interconnected, a sense winding 24 being connected to the write " 0 " winding 14 of the next succeeding core through a diode. Cores 10(1) and 10(3) have their windings 18 energized by a pulse generator S 1  and cores 10(2) and 10(4) by a generator S 2 , the generators providing alternate pulses. Assuming a " 1 " is written in core 10(1) (flux in leg A) and a " 0 " in the other cores (flux in leg B) then a pulse from generator S 1  shifts the flux in core 10(1) from leg A to leg B. A signal is thereby produced in winding 24(1) which pulses winding 14(2) of core 10(2) shifting its flux to leg A. A subsequent pulse from generator S 2  shifts this flux back again and develops an output to drive core 10(3) and so on with each core in turn. Specifications 777,519, 789,668, 841,426 and 845,431 are referred to.
Patent GB-926501-A (GB)
Title: Improvements in or relating to publicity devices
IPC: G04B47/00
Filed: 1960-02-04
Abstract: 926,501. Moving signs. G. BARRAS. Feb. 4, 1960, No. 4039/60. Class 3 (1).. An advertising device comprises a clock mechanism mounted in an internally-illuminated casing 1 having a translucent front panel 2 bearing the face and hands of the clock, the casing being provided with projections 16, 17, 18, each adapted to carry a publicity device.
Patent GB-378793-A (GB)
Title: Table napkin holder
IPC: A47G21/16
Filed: 1932-02-12
Abstract: 378,793. Dress and like pins. FOWLIE, H. C., 19, York Street Chambers, Baker Street, London. Feb. 12, 1932, No. 4175. [Class 131.] A holder for table napkins comprises an elongated central portion D which at one end carries, or is formed with, a sharply bent-down hook portion A at the rear, and at the other end carries, or is formed with, a sharply bent-up hook portion B, at the front, the extreme points a, b of the hooks being slightly turned towards the central portion. The elongated central portion may be made integral with the hooks and may carry a decorative or covering piece in the form of a fish, leaf C, &c. The front hook B is adapted to engage the napkin and the rear hook A to engage a person's clothes.
Patent GB-925448-A (GB)
Title: Improvements in or relating to circuit arrangements for the prevention of screen burning in cathode ray tubes
IPC: H04N3/20
Filed: 1960-02-05
Abstract: 925,448. Converting. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 5, 1960 [Feb. 7, 1959], No. 4191/60. Class 38 (2). [Also in Group XL (c)] In a circuit arrangement for preventing " screen burn " of a television receiver cathoderay tube (C.R.T.) (see Group XL (c)) the operating bias for the tube is supplied by a rectifier 5 fed with line flyback pulses ; the rectifier circuit includes brilliance control 6. In a second embodiment a triode rectifier is used and its circuit is connected to the C.R.T. grid, Fig. 2 (not shown). Specifications 740,881 and 762,440 are referred to.
Patent GB-548219-A (GB)
Title: Improvements in or relating to dental instruments for boring, grinding and like operations
IPC: A61C1/08
Filed: 1941-03-29
Abstract: 548,219. Dental hand-pieces. KARLSTROM, K. A. S. March 29, 1941. No. 4262. Convention date, April 24,1940. [Class 81 (ii)] The hand-piece 1 of a dental instrument for boring, grinding, &c., is arranged so as to be rockable within limits about the axis of the bit 14, which passes through and is guided by an articulated arm 15. The top half 8 of the bit is conical and the reduced diameter provides a clearance 16 in the bearing sleeve 5. To prevent the bit from being displaced longitudinally when in use, the reduced part 12 is engaged by a locking arm 9 pivoted on the hand-piece.
Patent GB-248722-A (GB)
Title: Improvements in electric discharge devices
IPC: H01J3/02
Filed: 1926-02-15
Abstract: 248,722. Raytheon Manufacturing Co., (Assignees of Smith, C. G.). March 5, 1925, [Convention date]. Vacuum tubes; lowpressure metallic-vapour apparatus.-A discharge device of the type having an active cathode surface disposed within a chamber having a restricted opening for the discharge, contains a readily-ionizable gas and a less ionizable gas, and means for maintaining a higher pressure of the more ionizable gas inside the chamber than outside it; metallic vapour may be used instead of gas. As shown, the cathode chamber C has a small opening E and is closed at the bottom by a membrane P of material such as quartz, carbon, or perforated metal, which allows the diffusion of a gas such as helium but not of mercury vapour to any extent. The cathode is surrounded by an anode A and an interposed perforated shield S, which protects the anode from positive ion bombardment, and also serves to increase the heating of the cathode. The filling consists preferably of helium and mercury vapour, but hydrogen may be used instead of helium, and caesium vapour or krypton instead of mercury. Mercury D may be vaporized by a heating coil H. A winding M produces a magnetic field which causes rotation of the gas inside the cathode and thereby increases its ionization, and, consequently, the electron emission from the cathode. At the same time gas is drawn into the chamber by centrifugal action, and this effect may be increased by extending the lead c to a point near the opening E. Helium diffuses through the wall P, with the result that the filling inside the cathode consists mainly of mercury vapour at a higher pressure than outside. The electron emission from the cathode may be increased by coating the internal surface with caesium and by heating the cathode independently of the main discharge, for instance, in the manner described in Specification 248,721. Specifications 230,026 and 246,036 also are referred to. The Specification as open to inspection under Sect. 91 (3) (a) refers also to Specifications 168,882 and 170,015. This reference does not appear in the Specification as accepted.
Patent GB-303673-A (GB)
Title: Improvements in or relating to track mechanism for use in connection with dog racingor the like
IPC: A63K1/02
Filed: 1928-02-10
Abstract: 303,673. Etches, F. E. Feb. 10, 1928. Traces. - Track mechanism for use in dogracing comprises a metal framework to one end of which the, lure is attached and which is propelled by means of a winding device along a metal trackway raised a short distance above the ground. The trackway is formed of a T-beam supported above the ground on standards m<1> driven into the ground. The framework carrying the horizontal arm a to which the lure is attached is supported by rollers g, g<1>, g<2> which engage the flange f and web f<2> of the beam and are of the type used in roller skates. A rope attached to the framework is secured to a winding drum not shown and guide pulleys are provided to facilitate movement of the device round curved portions of the, track. A brake lever o mounted on a pivot p is normally held off against the influence, of a spring u by a cam lever t to which the winding rope is attached. If the rope becomes slack the brake is applied to the beam flange. Reference has been directed by the Comptroller to Specifications 303,237 and 306,063.
Patent GB-739433-A (GB)
Title: Tiltable hinge, especially for windows and the like
IPC: E05D5/12
Filed: 1954-02-15
Abstract: 739,433. Hinges. FAGERLI, G. Feb. 15, 1954 [March 14, 1953], No. 4405/54. Class 65(2). A hinge, particularly for windows, allowing separation of the hinged members without dismantling the hinge comprises a leaf 10 formed with a conical recess to receive a corresponding pivot member 13 which is detachably but non- rotatably attached to the other leaf 11 by a non-circular extension 14 of the conical member 13 engaging a recess 15 in the part 16 of the leaf 11 ; the parts are held together by a screw 17 threaded into the part 16, and the recess 15 opens to the side of the part 16 by a slot 18, through which the extension 14 can be moved when the screw 17 is unscrewed out of the part 16, thus permitting separation of the members 10, 13 from the member 11.
Patent GB-482223-A (GB)
Title: Improvements in and connected with precombustion chamber injection type internal combustion engines
IPC: F02B19/14
Filed: 1937-02-15
Abstract: 482,223. Oil engines. DAIMLERBENZ AKT.-GES, Feb. 15, 1937, No. 4477. Convention date, Feb. 13, 1936: [Class 7 (iii)] A precombustion chamber b communicates with the main combustion space a by way. of several passages, one of which p<1> is disposed in the direction of the fuel jet, flaring conically from the precombustion chamber to the main combustion space and having a narrow opening at the precombustion chamber end so that only part of the fuel can pass through. The other passages m<1> may surround the passage p<1> and be parallel or convergent to the fuel jet, or they may be bent. The passages m<1> open into an annular space n<1> which may open into the main combustion space together with the central passage p<1>. The core piece k<2> in which the central passage is formed may be extended so that the central passage opens independently of the other passages into the main combustion space. When an extended core piece k<2> is used, it may be axially adjustable and tapered on its outside surface so that the width of the annulus o<1> surrounding it may be varied. Specification 449,279 is referred to.
Patent GB-575242-A (GB)
Title: Improvements in or relating to coke quenching wagons
IPC: C10B39/14
Filed: 1944-03-10
Abstract: 575,242. Coke-quenching trucks. WELLMAN SMITH OWEN ENGINEERING CORPORATION, Ltd., and KAY, I. March 10, 1944, No. 4477. [Class 51 (ii)] [Also in Group XXXII] In a coke-quenching truck in which the floor 6, Fig. 5, or the entire body 4, Fig. 4, is tiltable about pivots 3 to discharge the coke through a side opening fitted with a door 20, the operating mechanism comprises a longitudinal shaft 7 driven by a motor 11 and connected at each end through a gear - box 12 with a shaft 13 carrying cranks 14, 15, the former serving to tilt, through a link 16, the truck floor or body and the latter simultaneously to open the door 20 through a link 17 and arm 18. A hand-wheel is carried on the undercarriage 1 to enable the shaft 7 to be manually operated when necessary. As shown in Fig. 1, the truck body is divided longitudinally into two parts each provided with a separate door 20 and having independent tilting and dooroperating mechanisms. Specifications 435,127 and 575,241 are referred to.
Patent GB-1528923-A (GB)
Title: Single layer doped poly-silicon gate structure for charge-coupled devices
IPC: H01L29/762
Filed: 1975-02-03
Abstract: 1528923 Charge-coupled devices RCA CORPORATION 19 Jan 1976 [3 Feb 1975] 4544/75 Heading H1K In a CCD comprising a single layer semiconductor gate structure preferably of polysilicon, on an insulated substrate 10, transfer electrodes 14, 16, 18 &c. are separated by regions 20, 22 of a conductivity type opposite to that of the electrodes, and in use the leakage current between adjacent electrodes is reduced by properly biasing the substrate relative to the electrodes. In case of a buried-channel device, Fig. 4 (not shown), the transfer electrodes are of the same conductivity type as the substrate provided with a thin layer of the opposite conductivity type in between the substrate and an insulating layer, e.g. of silicon dioxide. Diffusion regions, Fig. 5 (not shown), in the substrate, of the same conductivity type as but of higher impurity concentration than the substrate are provided to define the boundaries of the CCD channels. When used as a two-phase device, a fixed charge either in the insulation layer or in the substrate beneath the same edge of each electrode is provided. The polysilicon layer, preferably vapour deposited by pyrolitic decomposition of silane, is doped by using diborane during growth or subsequently by ion implanatation, whereas N+ regions are formed using an oxide diffusion mask and using conventional phosphorous doping sources. Aluminium is used for contacting the transfer electrodes. Upper and lower limits of three-phase voltage waveforms imposed on the electrodes and the bias voltage of the substrate are disclosed.
Patent GB-806347-A (GB)
Title: New or improved method for marking out work
Inventor: SLATER REGINALD
IPC: B23D33/12
Filed: 1956-02-14
Abstract: 806,347. Marking-out work. WHESSOE Ltd. May 14, 1957 [Fab. 14, 1956], No. 4571/56. Class 61. A dished metal plate is marked out for subsequent cutting by projecting an enlarged shadow of a template onto the work piece which is then marked out in accordance with the position of the shadow. A light source of small dimensions is mounted on a horizontal beam which slides on two vertical members and can be locked at the required height, the light source being finely adjustable on the beam. The template is adjustably mounted on a horizontally disposed rectangular frame which slides on four vertical members rigidly connected to those supporting the light source. Marking may be effected along the edge of the shadow or the shadow may be used for locating a flexible marking off template on the workpiece. The template may have a central aperture to facilitate horizontal positioning thereof.
Patent GB-888467-A (GB)
Title: Improvements in or relating to screened electric motors
IPC: H02K11/02
Filed: 1958-02-12
Abstract: 888,467. Electric motor casings and accessories. PROTONA PRODUKTIONSGESELLSCHAFT FUR ELEKTROAKUSTISCHE GERATE G.m.b.H. Feb. 12, 1958 [Feb. 12, 1957], No. 4593/58. Class 35. Magnetic and/or electric energy radiated by an electric motor is attenuated by a tubular multiple screen comprising two or more nested and radially spaced thin-walled magneticallysoft iron shells 7, 7a, 7b which extend over at least the full length of the stator 2 and of the rotor core and of which the radially inner shell 7 is adjacent but spaced from the stator 2. The motor may be a cylindrical D.C. motor of which the stator 2 is annular, and is suitable for driving small magnetic sound recorders. The shells may be extended beyond the end-shields 4, 5 of a non-magnetic casing 3 and have their open ends closed by high susceptibility discs, not shown. Between the shell there may be provided material 6a, 6b which is non-magnetic, sound-absorbing, and possibly electrically insulating.
Patent GB-100858-A (GB)
Title: Improvements in Centrifugal or the like Pumps.
IPC: F04D29/16
Filed: 1916-03-29
Abstract: 100,858. Weir, G. & J., and McCowatt, W. March 20, 1916. Stuffing-boxes, substitutes for.-The labyrinth packing at the suction side of a centrifugal or like pump has the clearance spaces arranged axially and the support for the stationary collars of the packing is axially adjustable. The packing comprises collars c on the rotor a and collars f on a two-part ring g which is secured to an adjustable supporting single-part ring k by screws m. The ring k screws into the casing b and is locked after adjustment by a screws engaging the serrated edge of the ring. In a modification, the two-part ring is supported by a flange on the casing, or on the suction liner q, and is adjusted by screwed pins passing through the casing and by the suction liner q which bears against the ring g and is screwed into the suction pipe. In this case, the liner q has a serrated outer edge for engagement by a locking-plate after adjustment. The suction guide cone is supported by webs on the liner g.
Patent GB-435031-A (GB)
Title: Safety device for electrical welding machines having a cooling fluid circulation system
IPC: B23K11/25
Filed: 1934-02-12
Abstract: 435,031. Transformers. SCIAKY, D., 13, Rue Charles-Fourier, Paris. Feb. 12, 1934, No. 4613. Convention date, Feb. 14, 1933. [Class 38 (ii)] In an electric welding machine 8 having the conductors of the transformer secondary circuit cooled by circulation of a cooling fluid, a safety device 1 operated by the pressure of the cooling fluid is arranged at the outlet of the cooling system and is adapted to cause the opening of the electric circuit of the machine when the pressure of the cooling fluid falls below a predetermined value. The safety device 1 may be in the form of a pressure gauge, having a contact 11 with which the pointer of the gauge engages when the pressure of the cooling fluid is less than the predetermined minimum value. The engagement of the pointer with the contact 11 closes the circuit of a relay 2 and thereby opens contacts 3 which are arranged in a circuit containing the operating coil 6 of the circuitbreaker 9 controlling the machine 8. The relay, when energized, also closes contacts 4 arranged in the circuit of a warning lamp 5.