baber/WOPTO huggingface dataset:
Patent GB-327293-A (GB)
Title: Process of producing a protecting layer on chrome baths for preventing formations of chrome mists
IPC: C25D21/11
Filed: 1929-04-08
Abstract: 327,293. Blasberg, R. April 8, 1929. Chromium, depositing.-A chromium plating bath is provided with a protecting layer of a natural or artificial hydrocarbon or a hydrogenated hydrocarbon or a mixture thereof to prevent formation of chrome mists. Hydrogerated hydrocarbons of high boiling point are preferably used.
Patent GB-439630-A (GB)
Title: Improvements in gyroscopic apparatus
IPC: B63B39/04
Filed: 1934-06-11
Abstract: 439,630. Gyroscopic apparatus. GRAY, A., and GRAY, E. R., 4, Hamilton Drive, Glasgow, [Representatives of GRAY, J. G.] June 11, 1934, No. 10870. [Class 97 (iii)] A gyroscope 14, Fig. 6, with normally vertical spinning axis is pivoted about a first horizontal axis 15-15, in a gimbal ring 16 pivoting in turn about a perpendicular second horizontal axis, 17-17, in a second gimbal ring 18. The latter pivots about an axis, 19-19, parallel to the first axis in supports 20 carried by a rotating platform 21 and is forcibly turned to keep the second axis, 17-17, normal to the axis of spin by a reversible motor controlled by contact making apparatus 23, 24, operative on departure of the first gimbal ring 16 from a position normal to the axis of spin. The motor may be mounted on a support 20 and drive a gear wheel 26 on the axis 19-19. A frame 28 attached to the gimbal 16 carries a vertically adjustable weight and an auxiliary gyroscope 27 for eliminating errors due to centrifugal couples. The gyro 27 is mounted on vertical pivots 29 in the frame 28 and has its spin axis maintained athwart the second axis by springs 30. In a modification, Fig. 8, the auxiliary gyro 27 is carried by a lateral extension of the gimbal ring 16 and the second gimbal ring 18 pivots on an axis 54-54 in a third gimbal ring 55 pivoting in turn on an axis 56 in supports 57. The second gimbal ring 18 is maintained normal to the axis of spin by a motor driving gear wheel 70 and under control of contact making apparatus 67, 68.
Patent GB-660357-A (GB)
Title: Improvements in signal receivers
Inventor: OBERMAN ROELOF MAARTEN MARIE
IPC: H04Q1/453
Filed: 1948-04-20
Abstract: 660,357. Electric correspondence control systems, STAATSBEDRIJF DER POSTERIJEN, TELEGRAFIE EN TELEFONIE. April 20, 1948. [April 21, 1947] No. 10922/48. Class 40 (i). [Also in Group XXXIX] In a receiver for digital information signalled to it by variations in resistance or voltage, or as combinations of frequencies, a discriminator circuit divides the aggregate of possible signals into halves, determines the half to which the signal belongs, further subdivides this half and so on until the signal is completely identified. In the arrangement shewn in Figs. 1, 2 signalling is effected by switching resistances at TSL into the cathode circuit of valve NW to vary the cathode voltages from a normal value of -15V to one of a range varying in 2V steps from -15V to -45V. On receipt of a signal, valve NW normally grid biassed at -15V conducts to' bring up T followed by AX which changes the grid bias to -29V. If the signalling voltage is numerically less than this T brings up A; otherwise B comes up. In either case the grid bias is switched to the midpoint of the appropriate range i.e. -21V or -37V. Relays C or D are then operated in a similar manner followed by E or F and G or H after which BX transfers the signal to storage means. When the signal is removed T releases BX which steps the register sequence switch during the release time of CX. In an arrangement for receiving signals comprising combinations of four frequencies Fig. 5 (not shown) the relay T is controlled by a rectifier valve into whose input circuit filters tuned to the four frequencies are successively switched in when one relay of each of the successive pairs AB, CD, ... is operated.
Patent GB-938740-A (GB)
Title: A measuring cell for an electric mass filter
IPC: H01J49/42
Filed: 1961-03-24
Abstract: 938,740. Mass spectrometers. SIEMENS-SCHUCKERTWERKE A.G. March 24, 1961 [March 25, l960], No. 10972/61. Class 39 (1). The R.F. mass spectrometer described in Specification 773,689 consists of three independent structural units: (1) the tubular metal casing 11 with gas supply conduit 17 and insulated ion current collector 16, (2) the analyser system, consisting of four rods, 24, which is inserted within unit (1), and (3) the ion source 21 and a flange 19 for connecting the ion source to one end of the metal casing 11. The flange surfaces 18, 19 can be flat, cylindrical, or conical. A diaphragm 14 between the analyser system and the ion collector has a flange 14a which is secured between the metal casing 11 and a sleeve 13 which is sealed into the glass cap 12. Two diaphragms 22 are provided between the ion source and the analyser system. The rods 24 of the analyser system are secured by elastic insulating rings 25, 26, the rods being accommodated in recesses in the rings and being engaged by radial screws. In another method of mounting the rods, the rods are secured in apertured mica end rings and held by screws entering into the ends of the rods.
Patent GB-543464-A (GB)
Title: Improvements in or relating to the catalytic cracking of hydrocarbon oils
IPC: C10G11/18
Filed: 1940-06-27
Abstract: 543,464. Cracking oils. STANDARD OIL DEVELOPMENT CO. June 27, 1940, No. 10983. Convention date, Aug. 26, 1939. [Class 32] In catalytic cracking processes of the kind in which a suspension of oil vapours and catalyst is passed through the reaction zone, the catalyst is separated from the cracked vapours and without regeneration used in suspension in a further stream of oil which is cracked independently of the first stream. The fresh catalyst is preferably used to crack a refractory oil and is then used to crack an oil more amenable to cracking. A virgin oil or clean condensate supplied by pump 10 is vaporized in a coil 12 and the vapours after separation of liquid residues in separator 15 are. mixed in line 17 with unregenerated catalyst supplied from a hopper 22 by a conveyer 21. The suspension is passed through a reactor 18 and the vapours are separated from catalyst in a cyclone separator 24 and passed to the fractionating tower 27 from which gasoline fractions are recovered overhead through condenser 29 to receiver 30. The separated catalyst may in part be returned to the hopper 22 where it is mixed with fresh catalyst and re-used without regeneration in the reactor 18. 'The major part of the catalyst is passed to a purging zone 36 where residual vapours are removed by steam or evacuation and passed through line 38 to mix with the cracked vapours in line 76. The catalyst is then regenerated in known manner in regenerator 43 by regenerating gases fed through line 41 and is carried in suspension in the gases to a cyclone separator 45 where the catalyst is separated and passed to a purging chamber 48. From this chamber part of the catalyst may be returned through line 53 to hopper 22 but it is mainly passed by conveyer 51 to hopper 52 from which is charged to reaction chamber 61 where it is used to crack a separate stream of oil less amenable to cracking, e.g. cracked oil fed through line 65 from an extraneous source or the reflux condensate fed from the bottom of tower 27 through line 56. This oil is vapourized in coil 58 and separator 62 and then, admixed with catalyst from hopper 52, fed to the reaction chamber 6. The cracked vapours pass to cyclone separator 69, and thence through line 70, 26 to the tower 27. Catalyst separated in the cyclone chamber 69 is fed without re-generating back to the hopper 52 or through line 71 to hopper 22 or in part through line 12 to purging and regenerating chambers 36, 43. Part of the cracked vapours removed from reactor 61 may be passed through line 73 and injected into the stream of oil passing into coil 58 or, mixed with vapours passing from the cracking zone 18 fed through line 75 to coil 12.
Patent GB-635464-A (GB)
Title: Improvements in and relating to foundry moulding boxes
IPC: B22C21/02
Filed: 1948-04-22
Abstract: 635,464. Foundry flasks. CLAYTON EQUIPMENT CO., Ltd., ALEXANDER & CO., Ltd., H., and KIRKBY, F. G. April 22, 1948, No. 11075. [Class 83 (i)] A flask of the kind having at least one of its sides capable of being retracted and at least one other of its sides pivotable about a fulcrum is characterized in that the retractable side or sides c is or are controlled by a wedge-shaped member or members f in such a manner that it or they can be moved both towards and away from the centre of the flask. The pivotal side e is controlled by a wedge-shaped member k adapted first to raise the side from the open position to a predetermined angle and then move it towards the centre of the flask to clamp the contents thereof and in order to open the flask, first to retract and then lower the pivoted side into the open position. The wedgeshaped members are arranged to move in channels provided in the movable sides of the flask and in fixed members outside thereof while being kept in guiding engagement by means of retaining flanges on the sides and on the fixed members. The flask is also provided with retractable base-plate b. The latter and the wedge members may be manually or poweroperated.
Patent GB-126207-A (GB)
Title: Improvements in Safety Devices for Mine Cages, Lifts and the like.
Inventor: GRIFFIN WILLIAM
IPC: B66B5/22
Filed: 1918-07-08
Abstract: 126,207. Griffin, W. July 8, 1918. Catch gear of mine-cage type.-A casing a is fixed preferably to the top of the mine cage &c. adjacent to two or more of the guides and has an inclined extension c adapted to enclose a wedge d pulled downwards by a spring j and having lateral grooves o engaging with corresponding ridges on the casing extension which take part of the thrust. The wedge is put into operation, on breakage of the cage rope. by a spring m pulling down a lever l connected by a link k to a lever f mounted on pivots g and having a cam-shaped end e acting on the wedge. When timber guides are employed, a. pair of wedges with herring-bone ridges on the working faces are arranged at opposite sides of each guide.
Patent GB-1375525-A (GB)
IPC: F16D65/14
Filed: 1973-03-07
Abstract: 1375525 Mechanically-operated spot-type disc brakes SOC ANON FRANCAISE DU FERODO 7 March 1973 [10 March 1972] 11177/73 Addition to 1240920 Heading F2E The invention of the main Specification 1,240,920 is modified by providing that the transfer member is of generally ring shape and surrounds the fixed support, the brake shoes and the adjacent edge of the disc to be braked, so that the dimensions of the assembly are reduced, and that the fixed support is in the form of a bracket instead of an inverted-U and so is more economical. As shown, the transfer ring 60 rests on abutments 64, 64<SP>1</SP>, on the fixed support 10 and on abutments 65, 65<SP>1</SP>, on one of the brake shoes, 14B; it is held down thereon by a spring blade 61 secured by screw 63 to the fixed support 10. Brake shoe 14B is supported on bevelled edges of part 71 of fixed support 10 by hooks 72, 72<SP>1</SP>. Brake shoe 14A is accommodated in a window 13A of fixed support 10 and has tongues 80 which fit with clearance in lateral slots 81 of window 13A; the shoe is urged upwards by a spring 82. Bifurcated operating lever 24 pivots around a shaft 22 carried by the ring 60 and tension cable 40 makes with a plane P parallel to the plane of the disc an angle A which advantageously lies in the range 0 to 80 degrees, a value of approximately 30 degrees being preferred. Somewhat as in the main Specification, in operation, there are two phases: in the first, the cam surface 25 of lever 24 slides on shoe 14A and forces this shoe and, via the ring, shoe 14B into contact with the disc; in the second, there is rolling contact between cam surface 25 and shoe 14A, so ring 60 is compelled to pivot about an instantaneous axis parallel to the axis of shaft 22 and near the periphery of the disc, to the position shown in chain line, against the force of spring blade 61, the shoes now gripping the disc.
Patent GB-664850-A (GB)
Title: Improvements in or relating to dart flights and darts fitted therewith
IPC: F42B6/00
Filed: 1949-04-27
Abstract: 664,850. Dart flights. LOWY, F. April 19, 1950 [April 27, 1949], No. 11186/49. Class 132 (iii). A dart flight, according to construction shown in Fig. 1, comprises an adaptor member 1 which has a screw thread for screwing into the rear end of a dart body and a blind hole 3 adapted to receive, so as not to rotate, a wood or cane shaft 4 with wings 5. Further embodiments have long flight shafts, Figs. 2, 3 (not shown): The wings and shaft may be moulded in a single piece or the wings may be feathers glued to the shaft. Replaceable folded paper wings may alternatively be provided. The adaptor 1 is preferably moulded in plastic.
Patent GB-240382-A (GB)
Title: Improvements in and relating to the construction of motor road vehicle bodies
IPC: B60J7/14
Filed: 1925-04-29
Abstract: 240,382. Barnes, F. J. April 29, 1925. Hoods.-In vehicle hoods of the kind arranged to fold down out of sight into a compartment in the body, the hood 4 is hinged at its rear edge 6 so that it can be swung down into an upsidedown position in a compartment 3, which is entirely behind the seat. To allow this, a lid 7 is opened. The dicky seat compartment D is separated from the compartment 3 by a partition foot-board 2, hinged at 8 and, if desired, carrying the lid 7 at its top. A supplementary lid 7<a> may be provided to facilitate access to the compartment D.
Patent GB-854069-A (GB)
Title: Improvements in magnetic tape recording and reproducing apparatus
IPC: G11B25/06
Filed: 1956-04-12
Abstract: 854,069. Magnetic recording and reproducing machines. INGLESBY, J. C. V. (Fries, G.). April 5, 1957 [April 12, 1956], No. 11197/56. Class 40 (2).  A magnetic tape - recording apparatus for obtaining highscanning speeds with comparatively low tape transport speed. A cylinder 2 (Fig. 1), supported on a shaft 13 contains feed and take-up spools 15 and 16 coaxial with the drum. A magnetic tape wound on the feed spool passes out through an aperture 4 in the cylindrical surface of the drum, passes completely round the drum on a helical path for a distance of not less than 360 degrees and re-enters the drum through an aperture 5 to reach the take-up spool. A stationary magnetic head 9 scans the tape as the complete drum rotates, so that the scanning speed is proportional to the angular speed of the drum. The magnetic track of width tn (Fig. 4), is at an angle to the side of the tape and passes over the edges of the adjoining sections of the tape between apertures 4 and 5. At each revolution of the drum the tape must be advanced a distance not less than ts in order to present a fresh surface to the head 9 for the next track. The distance ts =tn/cos # where is the helix angle of the tape path around the surface of the drum, determined by the ratio of the circumferential length of the drum to the width of the tape. In a modification the spools are mounted outside the drum to enable larger spools to be used. In a further modification the tape has perforations along one edge cooperating with a toothed roller and in this case the drum is a conic frustum. Specifications 739,809 and 788,862 are referred to.
Patent GB-1472463-A (GB)
Title: Copolymers
IPC: C08G63/91
Filed: 1974-03-13
Abstract: To prepare a terpolymer containing ester and amide bonds between the monomer units, the following procedure is followed:     (a) a lactam monomer of the formula: <IMAGE>     (b) a polyol and   (c) a polyacyllactam or acylpolylactam of the formula: <IMAGE> are reacted in the presence of a basic lactam polymerisation catalyst. The amount of polyol is from 10 to 90% by weight of the polymerisable medium. In the formulae, A, A', R, Y, n and y are as defined in Claim 1. The terpolymers can be used, for example, for the production of fibres, moisture-absorbent nonwovens, foam products, casting resins, furniture parts and automobile parts.
Patent GB-495624-A (GB)
Title: Improvements in or relating to antenna arrangements, especially for radio beacons
IPC: G01S1/02
Filed: 1938-04-12
Abstract: 495,624. Directive wireless signalling. LORENZ AKT.-GES., C. April 12, 1938, No. 11218. Convention date, April 14, 1937. [Class 40 (v)] Relates to overlapping-beam systems for marking-out an equi-signal course, comprising a continuously-energized dipole 1, 2 and reflectors 9, 10, and consists in a particular method of feeding the low-frequency current for operating the keying relays 11, 12 through conductors which are prevented from radiating high-frequency energy likely to interfere with the directional distribution of the beam energy. As shown, the bottom limb of the main dipole consists of a tube 1 enclosing the conductor 2<1>. At their lower ends, both are twisted into a choke 5 to prevent in-phase aerial currents from flowing back to the transmitter 6. The aerial is fed by out-of-phase currents from the opposite terminals 17, 18 of the oscillatory circuit 30, 31. Keying current for the relays 11, 12 is taken from a low-frequency source 15, 16 and passes through the same terminals 17, 18 and the choke 5 to the terminals 19, 20. The flow of high-frequency current through the lateral conductors 28, 29 is prevented by chokes 21 .. 26. Alternatively the tube 1 may be a quarter-wave long and connected to the transmitter through a coiled line which is non-inductive to out-of-phase currents, Fig. 1 (not shown).
Patent GB-436948-A (GB)
Title: Improvements in or relating to radio receiving apparatus
IPC: G01S3/06
Filed: 1934-04-13
Abstract: 436,948. Wireless receiving-apparatus. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, and HERMANSPANN, P., 12, Hallesches Ufer, Berlin. April 13, 1934, No. 11236. [Class 40 (v)] The effect of local disturbance is minimized by using an aperiodic frame aerial R, Fig. 2, (which may be assumed to have a capacity coupling Co say of 20 cms. with a conductor L radiating the disturbance) and coupling the frame to the tuned input G through a primary winding L1 (preferably only a single turn) which presents a substantially-smaller impedance to the disturbing frequency than the capacity Co. The result is to confuse most of the total voltage-drop of the interfering frequency to the capacity Co, leaving only a small residual voltage to reach the input of the valve M. To remove the limitation due to the directional effect of a single frame aerial, two frame-aerials R, R1, Fig. 3, may be arranged at right angles, one being fitted with phase-adjusting means P; or a switch may be provided so that the particular frame producing the stronger signals is always used. The two frame aerials may be constituted by parts of the chassis of the set, or the housing of the loud speaker, so as to economize space.
Patent GB-117517-A (GB)
Title: Improvements in or relating to Means for Controlling the Feed in Grinding and other Machines.
Inventor: LOOSE JOHANNES
IPC: B24B47/04
Filed: 1917-08-03
Abstract: 117,517. Loose, J. Aug. 3, 1917. Disk, wheel, and roller apparatus.-In a grinding-machine, or other machine having a reciprocating table, the tool is fed at each reversal of stroke or at alternate reversals. Stops on the reciprocating table operate a lever c pivoted at s and carrying at its end a toothed sector d gearing with a pinion e loosely mounted on a pin g carried by the framing of the machine. The pinion e is formed integral with a two-armed lever f, which at each reversal comes in contact with one of two adjustable screws i, i<1> carried by the head k of a link h connected to a lever carrying a pawl, which operates a ratchet-wheel and so effects the feed of the tool. The feed at either reversal of the stroke can be eliminated by screwing back the screw i or i<1>. The head k is slotted to permit it to travel on a block t on the fixed pin g, and the amount of feed is limited by this travel and can be regulated by means of a screw m bearing on the block t, a spring-pressed plunger o bearing on the opposite side of the block.
Patent GB-455219-A (GB)
Title: Improvements in pneumatic apparatus for separating dust from coal and the like
IPC: B07B4/08
Filed: 1935-04-11
Abstract: 455,219. Pneumatic separating. SEABROOK, H., c /o Haddan & Co., H., 31, Bedford Street, Strand, London.-(Westfalia-Dinnendahl-Groppel Akt.-Ges. ; Bochum, Germany) April 11, 1935, No. 11263. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 23, 1935.] [Class 117] Apparatus for de-dusting coal &c. comprises a box 2 with a vibrating sieve bottom 7 to which the coal is fed from a shoot X, a conduit directing a blast of air against the underside of the sieve, the cross-section of the conduit being for some distance below the sieve substantially equal in area thereto, a suction conduit or conduits, elongated upwards with a very gradual taper extending into the upper part of the box and disposed so that suction operates over the entire surface of the sieve, the suction and blast being separately controlled and the box having an air inlet or inlets 5 close to the top level of the material so that the suction conduit receives air from the outside of the box in addition to the air passing through the sieve. The blast conduit is preferably slightly tapered and the sieve is vibrated by an unbalanced shaft 4. The suction conduit may be in the form of a number of nozzles vertically adjustable and provided with regulable lateral inlets. An expansion chamber 10 may be provided in the suction conduit and be provided with a pipe 12 for collecting the deposited material. A vane wheel 11 discharges the deposit and regulable air inlets 13 are provided for admission of air to prevent dust from settling in the pipe. The apparatus may be used in conjunction with apparatus for separating materials of different specific gravities by pneumatic stratification or may itself be adapted to function as such by providing at the lower end of the sieve 7 a weir for the coal and a gate for the refuse. A sieve 71 may be mounted in the blast conduit for equalizing the air flow over the cross-section.
Patent GB-139684-A (GB)
Title: Improvements in and relating to jacquard cylinders for textile weaving
IPC: D03C3/24
Filed: 1919-05-06
Abstract: 139,684. Holdsworth, E., and Westerby, W. May 6, 1919. Jacquards. - The pegs 2 for engaging the usual holes in the ends of the cards are slidably mounted in, and pass transversely through, the cylinder A, so that when the end of a peg meets the usual stop on the needle board, it is forced into the cylinder flush with the face of the cylinder or the card, the other end of the peg projecting the usual distance to engage a card. The pegs are of metal with their ends rounded as usual, and are arranged in pairs with their axes in the same transverse plane, the contacting central portions 2a being cut away to allow for this. The pegs pass through metal bearing-plates 3, adjustably secured in recesses in the cylinder, and tightly through rubber, leather, or like sleeves or sockets 4 which retain the pegs in the in and out positions. To enable the pegs to be inserted, the holes 2<b> in the cylinder are made of larger diameter than the pegs, or the cylindrical end portion of one peg of each pair may be removably secured to the remaining portion.