baber/WOPTO huggingface dataset:
Patent GB-1065627-A (GB)
Title: Conveyors
IPC: G05F1/62
Filed: 1965-06-25
Abstract: 1,065,627. Start and stop mechanisms for conveyers. RAPIDS-STANDARD CO. Inc. June 25, 1965 [July 13, 1964], No. 27047/65. Heading B8A. A conveyer for articles C comprises freely mounted rollers 12 frictionally driven by an endless belt 13 passing thereunder, cam rollers 20 freely mounted under the conveying run of the belt and each having a flattened portion 24 which when adjacent the belt 13 causes the belt to be lowered from the article carrying rollers 12 and article operated sensing devices 39 which through links 34 and 35 cause a remote upstream batch of cam rollers 20 to be locked in the lowered position whereby an article at that upstream position is brought to a standstill until the downstream article passes the sensing device. The belt 13 has on its underside a longitudinal rib (13a), Fig. 3 (not shown), which runs in a circumferential channel in each cam roller and in channels in tracking wheels (61), Fig. 8 (not shown), spaced along the conveyer. Each sensing device 39 comprises a roller spring biased into a position above the rollers 12 and freely mounted between pivoted levers 40 which via links 35, 34 are connected to a locking slide (30), Fig. 4 (not shown). In the unlocked position of said slide, a pin 33 on the side of each cam roller passes through openings in the slide whereas in the locked position, the pin abuts the slide causing the roller to halt, always in a position such that the belt is lowered. The position of the cam rollers is vertically adjustable relative to the rollers 12. In operation during normal conveying, articles pass over the sensing devices temporarily locking the slide, however, if a blockage occurs on the conveyer, the articles jam up and permanently operate a sensing device whereupon the upstream articles are stopped and further upstream sensing devices operated. In another embodiment, Fig. 12 (not shown), the belt (13) carries the articles directly, rollers at the edges of the belt supporting the stationary articles when the belt is lowered. The sensing devices also comprise rollers at the edges of the belt, biased into a position thereabove. In the modified locking slide arrangement of Fig. 11 (not shown), an abutment surface on the slide projects into a recess in the side of each cam roller (20) to engage an abutment formed therein when the slide is normal into the locking position.
Patent GB-484703-A (GB)
Title: Improvements in and relating to x-ray tubes
IPC: A47C17/32
Filed: 1936-10-07
Abstract: 484,703. Rontgen-ray tubes. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 7, 1936, No. 27246. Convention date, Oct. 7, 1935. [Class 39 (i)] In X-ray tubes working on peak-voltages of 300 or more volts, the target 54 is mounted in a copper shield 52 extending towards the cathode 23 and having a window 55 ; the shield 52 and a rear-ward extension 57 are carried by a centring cylinder sealed by a ring 44 to the re - entrant glass stem 45 of the envelope 10. A cooling coil is sealed to the plate 50 on which the target is mounted, the pipes 48 for the coil passing through a septum 42 of the centring cylinder, this septum, shield 57 and plate 50 preventing bombardment of the glass stem. The shield 52 is thickest near the target for heat dissemination and has a guard ring 67 with rounded nose. To prevent brown spot on the envelope, the length of the shield 52 is four to ten times its diameter, and the electron stream is focused on the target by a cup 26 surrounding the tungsten coil 23 forming the cathode ; this is connected to the molybdenum leads 24, 25 by binding with nickel wire and then welding. The cathode and cup are carried by a shield 31 screwed to a centring cylinder 19 and extending over the re-entrant stem 14 of the envelope ; the shield and cylinder 19 prevent bombardment of the envelope. Silver soldered to the cylinder is a nickel steel cone 20 which forms the seal to the glass stem 14. Relative dimensions of the filament 23 and cup 26 for one form are given and the minimum electrode spacings corresponding to various peak voltages necessary to prevent cold cathode discharges from parts of the tube are also set out. A wire 29 is connected to the shield 31 and therefore the cup 26 passes with the filament leads 24, 25 through the stem 14 to a supply source. Micro-ammeters are connected in leads to the cathode and anode from this source. Specification 322,662, [Class 39 (i)], is referred to. The Specification as open to inspection under Sect. 91 describes the use of the microammeter for the measurement of gas pressure within the tube. This subject-matter does not appear in the Specification as accepted.
Patent GB-793265-A (GB)
Title: Improvements in or relating to polyester and ethoxyline castings
IPC: C08L63/00
Filed: 1955-09-23
Abstract: Casting compositions are made by adding polyamide and/or polyurethane moulding powder of particle diameter not exceeding 500 microns and of melt range 180 DEG  to 220 DEG  C., or a mixture thereof with ground mica, said mixture passing a 200 mesh, and said moulding powder forming at least 20 per cent by weight of the mixture, in an amount of (a) 15 to 25 per cent (by weight of the mixed resin) to a mixture of a rigid polymerizable unsaturated polyester syrup and 20 to 60 per cent (by weight of said syrup) of a flexible polymerizable unsaturated polyester syrup; or (b) 5 to 25 per cent (by weight of the mixed resin) to a mixture of a rigid ethoxyline resin syrup and from 20 to 60 per cent (by weight of said syrup) of a flexible ethoxyline or polysulphide polymer resin syrup.  In (a), a linking compound, e.g. styrene, a polymerization catalyst and a soluble metallic salt, e.g. cobalt naphthenate are added whilst to (b) reactive amines, e.g. diethylamine, may be used to cross-link and harden the mixture. Fillers, e.g. alumina and glass may also be included.  In the examples: (1) a rigid unsaturated polyester syrup ("Beetle" Grade 4116), a flexible unsaturated polyester syrup ("Beetle" Grade 4134), styrene, ground polycaprolactam powder, methyl ketone peroxide and cobalt naphthanate are mixed; (2) a rigid ethoxyline resin syrup ("Araldite" casting resin D), a flexible polysulphide resin syrup ("Thiokol" Grade LP33), ground mica, triethylene tetramine and a polyurethane moulding powder are mixed. In both examples, the compositions set by an exothermic reaction. The compositions may be used for encapsulating and potting electronic components and assemblies.  ("Beetle," "Araldite" and "Thiokol" are Registered Trade Marks.)
Patent GB-656502-A (GB)
Title: Improvements in or relating to arrangements for receiving signals transmitted by means of pulses of constant amplitude
IPC: H03G11/00
Filed: 1946-04-10
Abstract: 656,502. Automatic gain control. PHILIPS ELECTRICAL, Ltd., (formerly PHILIPS LAMPS, Ltd.). April 10, 1946, No. 27265/48. Convention date, Dec. 13, 1941. Divided out of 656,451. [Class 40 (v)] A receiver for pulse-modulated signals comprises a limiter having a threshold value which bears a constant relation to the amplitude of the incoming pulses. Pulse - modulated intermediate-frequency signals are fed to a detectorlimiter diode D via a transformer T. A potentiometer R<SP>1</SP>, R<SP>2</SP>, shunted by a condenser C<SP>1</SP>, is connected in series with the secondary of transformer. Resistance R<SP>2</SP> is made adjustable and is shunted by a condenser C<SP>2</SP>. The values of condensers C<SP>1</SP>, C<SP>2</SP> are such that a steady voltage depending on the amplitude of the incoming pulses appears across R<SP>2</SP>, while D.C. pulses are taken from the junction of R<SP>1</SP>, C<SP>1</SP>. The voltage drop across R<SP>2</SP> provides a bias for diode D, so that only signals of amplitude greater than a fraction of that of the incoming pulses are passed. This fraction depends on the ratio of R<SP>2</SP>: R<SP>1</SP>.
Patent GB-654908-A (GB)
Title: Improvements in wrapping machinery
Inventor: ROSE ALFRED GERMAN
IPC: B65B25/06
Filed: 1948-10-21
Abstract: 654,908. Wrapping-machines. ROSE BROS. (GAINSBOROUGH), Ltd. Oct. 21, 1948, No. 27325. [Class 94(i)] [Also in Groups V and XXX] A machine for wrapping articles of friable material, e.g. blocks of ice cream, includes a transfer mechanism which comprises a transfer member slidably mounted in a pivoted slide member, the latter being arranged firstly to rock upwardly to cause the transfer member to lift an article clear of a first. support, the transfer member then being caused to slide in the slide member to carry the article towards a second support, and the slide member then being caused to rock downwardly to lower the article on to the second support. In the machine shown, a pair of rods 11 of frozen ice-cream are carried by an inclined support 12, the base of which is constituted by a platform 14 pivoted on a shaft 16 and movable by linkage 18, 19 and 21 operable by a cam 24 on a shaft 26. The platform is initially in a raised position and is first lowered to allow the rods to fall by an amount equal to the thickness of the blocks to be cut, the pair of knives 31 being then operated through linkage 33, 34, 36-42 by a cam 46 on the shaft 26 tu sever the blocks from the rods. The platform is then lowered to the position shown, and the blocks transferred to the pockets 62 of a conveyer for wrapping- up. The latter operation is effected by a transfer member 63 which is slidable in a bracket 64 pivoted on a shaft 66 on which is mounted a pinion 68 engaging a rock 67 secured to the transfer member. The pinion also engages a segmental gear 69 which is carried by an arm 71 pivoted on a shaft 22 and carrying a roller engaging a cam 73 on the shaft 26. The bracket .64 is formed with a pair of arms 74 carrying rollers engaging cams 77 on the shaft 26. The arrangement and timing of the cams is such that the transfer member is first caused to dip as it is slid outwardly to the transfer position, then to rise to lift the the blocks clear of the platform, then to slide outwardly to carry the blocks to a position above the pockets 62, and finally to dip so as to lower the blocks into the pockets. The member then returns to its initial position and the platform 14 moves upwardly to support the rods 11 as the knives retract in readiness for the next cutting stroke. The transfer member, the platform 14 and the pockets 62 are bifurcated to allow the transfer member to move through the platform and pockets. According to the Provisional Specification a similar transfer member may be employed to lift the blocks from the conveyer at a wrapping station.
Patent GB-955403-A (GB)
Title: Improvements in or relating to a bed-settee
IPC: A47C17/175
Filed: 1962-07-17
Abstract: 955,403. Bed-settees; seats. P. G. PUECH. July 17, 1962 [July 17, 1961], No. 27428/62. Heading A4J. A device for locking a settee in two positions comprises a tube 59 surrounding an anti-torsion bar 23 and capable of rotating to a specific degree on the bar 23 due to the sliding of a pin 73 connecting the tube 59 and bar 23 in transverse slots 75 in the tube 59, the tube 59 having at its ends cams 60, 66, the cam 60 being formed with two notches 62, 64 and the cam 66 with two notches 69, 71 adapted to engage a stud 63 or 70 on the settee frame 1, thereby to lock the settee in a normal sitting position or in an inclined position. The cam 60 is directly engaged by a rod 50 controlled by a lever 45. A recall and locking spring 68 connects the cam 66 to the seat frame 20. To release the settee from the normal sitting position the lever 45 is depressed to release the studs 63, 70 from the notches 62, 69 and engage them in the notches 64, 71, the settee then being in its inclined position. Further pressure on the lever 45 causes the tube 59 to rotate on the bar 23 to disengage the studs 63, 70 from the cams 60, 66 and allow the settee to take up a reclining position. Noses 65, 72 are formed on the cams so that during the reverse movement returning the settee to the sitting position the studs 63, 70 are locked directly in the notches 62, 69 corresponding to the sitting position. The settee has curved side-pieces 76 connected to the anti-torsion bar 23 and pivoted at 21 to the settee frame 1 and at 21<SP>1</SP> to the seat frame 20. Each side piece 76 is connected by a pivot 77 to a strut 78. Specification 954,511 is referred to.
Patent GB-652575-A (GB)
Title: Improved core for the manufacture of concrete hollow structures such as beams
IPC: B28B7/30
Filed: 1948-10-22
Abstract: 652,575. Cores for moulding hollow concrete beams. PRONK, W. Oct. 22, 1948, No. 27461. Convention date, Dec. 31, 1947. [Class 87 (ii)] A core comprises two gutter-shaped beams A, B, the beam A consisting of two symmetrically-formed angle beams 1, 1 and 2, 2 cormected together by longitudinal hinges 6 and the beam B being similarly formed by angle beams 3, 3 and 4, 4 and hinges 6<SP>1</SP>. The beam A has externally-bevelled edges 1<SP>1</SP>, 21 which are forced against, internally-bevelled edges 3<SP>1</SP>, 4<SP>1</SP> on the beam B by means of a wedge-beam 5, 5<SP>1</SP> which consists of two slidable wedges having interfitting tongue-and-groove formations. To collapse the core the wedgebeam is withdrawn, whereupon the angle beams 1, 1 and 2, 2 may be displaced into the dottedline position. The wedge-beam is slightly longer than the gutter beams. The core may be of wood externally lubricated with graphite.
Patent GB-805029-A (GB)
Title: Improvements in the recovery of acrylamide from aqueous solution
IPC: C07C233/09
Filed: 1957-09-02
Abstract: Acrylamide is recovered from aqueous solution by adding excess of an organic solvent which forms an azeotrope with water and in which acrylamide has a greater solubility at the boiling point of the azeotrope than at lower temperatures, distilling off the water azeotropically, cooling the residue, and separating the acrylamide which crystallizes.  The process is preferably carried out at reduced pressure and at a temperature below the melting point of acrylamide, preferably between 30 DEG  and 50 DEG  C. Solvents specified are ethyl, butyl and amyl acetate, benzene, chloroform, dichloroethane and amyl alcohol.  The process may be operated continuously or discontinuously.  Specification 631,592, [Group IV (b)], is referred to.ALSO:Acrylamide is recovered from aqueous solution by adding excess of an organic solvent which forms an azeotrope with water and in which acrylamide has a greater solubility at the boiling point of the azeotrope than at lower temperatures, distilling off the water azeotropically, cooling the residue, and separating the acrylamide which crystallizes.  The process is preferably carried out at reduced pressure and at a temperature below the melting point of acrylamide, preferably between 30 DEG  and 50 DEG  C. Solvents specified are ethyl, butyl and amyl acetate, benzene, chloroform, dichloroethane and amyl alcohol.  The process may be operated continuously or discontinuously.  Specification 631,592 is referred to.
Patent GB-1016591-A (GB)
Title: Improvements in nuclear generators
IPC: G21D5/06
Filed: 1962-07-18
Abstract: 1,016,591. Nuclear power plant. SOC. RATEAU. July 18, 1962 [July 21, 1961], No. 27547/62. Heading G6C. In a nuclear reactor power plant, steam is superheated in the reactor and on leaving the reactor is divided into two paths, one through a heat exchanger and the other through a low pressure turbine. The condensate from the latter is passed into the heat exchanger, where it is vaporized and superheated, and then supplied to a high pressure turbine. The steam from the latter is fed back into the reactor. The system isolates the high and low pressure sections, the reactor being operated at the low pressure.
Patent GB-343106-A (GB)
Title: A new or improved clamp or retaining device for structural tubes, bars and the like
IPC: E04G7/24
Filed: 1930-09-11
Abstract: 343,106. Scaffold clamps. SMALLWOOD, A., Boulton Mills, Downing Street, Handsworth, Birmingham. Sept. 11, 1929, No. 27568. [Class 20 (ii).] A scaffold clamp has the pivoted clamping part provided with a bifurcated projection d on its outer end adapted to receive the pivoted clamping bolt n attached to the other clamping part and to bear upon the body clamped with a tangential binding movement in the clamping operation. In one form of clamp, Fig. 2, the clamping members a and b are pivoted for relative rotation and a pivoted clamping cheek h is provided in the member b so that when the bodies are clamped by the clamping parts a<1>, b<1>, the members of the clamp are also locked against relative rotation. In another form the grooved clamping members are formed integrally without relative adjustment, while in still another form for clamping bodies together in axial alignment the clamping part q is provided with two pivoted clamping parts p each provided with the bifurcated projections d. The nuts used in clamping are provided with depending apron portions engaging the bolt threads. Specification 231,230, [Class 20 (ii), Buildings and structures, Miscellaneous accessories, &c.], is referred to. Reference has been directed by the Comptroller to Specification 318,338, [Class 20 (ii), Buildings and structures, Miscellaneous accessories &c.].
Patent GB-1273749-A (GB)
Title: Improvements in or relating to the slow motion picture reproduction in video tape recorders
IPC: G11B5/027
Filed: 1969-05-30
Abstract: 1,273,749. Video recorders. SANYO ELECTRIC CO., Ltd. 30, May, 1969 [14 Sept., 1968], No. 27568/69. Heading G5R. To reduce loss of picture quality in slow motion playback of a helical scan videotape, the tape path around the head drum is altered so that the heads scan the tracks correctly, and a switching signal on the tape is used to switch the output from a head scanning the guard band between tracks to a head scanning the track. Tape guide.-(Fig. 2) The lower head drum half 8 carries a fixed guide 14 having guide ribs 23 etc, and a vertically movable guide 29 to orient the tape leaving the drum from the normal path L2 to the still or slow motion path L1. Normal recording and playback.-During normal recording by a pair of main heads either recording every field or alternate fields, pulses picked up by sensor 107 co-operating with a magnet 105 on a disc 106 are compared 102 with vertical sync pulses separated at 108 to control current fed to a braking coil 115. The pulses are also recorded by a normal control head 119. A further sensor 128 picks up pulses generated by magnets 122-127 also on the disc, there being as many such magnets as the ratio of tape speeds in normal and slow motion, in this case six, and records them via class A amplifier 129 and slow motion control head 237. Alternatively, the pulses fed to the control heads may be of opposite polarity and recorded by a single head. On playback the control signals reproduced by head 119 provide the servo reference pulses and the video information is played back by the main heads 137, 138 and composed in electronic switch 135 gated by pulses picked up by sensors 191, 192 co-operating with a further pair of magnets on the disc 106 and corresponding to the main head positions. Slow motion playback.-The control signals from head 237 are amplified by the circuit 129 which is now in class B or C mode and fed via switch 236, amplifier 120, 121 and switches 111, 112 to the servo comparator 102 whilst the signals from head 119, which occur at 1/6th. the frequency are fed via amplifier 217, time delays 222, 223 and bistable 207 to a switch 136 whose function is to select for composing in switch 135 either the output from the main head 138 or from a sub-head 241 according to which is scanning a track at that time. The delays 222, 223 are adjusted to switch-in the subhead over an interval between ¢ and 1/3 field before and after the main head is over the adjacent guard band. Still playback.-The tape is stopped, the servo reference is provided by a crystal oscillator 131 and the guide is in the operated position.
Patent GB-792848-A (GB)
Title: Improvements in or relating to process and apparatus for the manufacture of propellent powder
IPC: C06B21/00
Filed: 1955-09-28
Abstract: 792,848. Extruding particles of explosive material. OLIN MATHIESON CHEMICAL CORPORATION. Sept. 28,1955 [Oct. 4, 1954], No. 27621/55. Class 87(2). [Also in Group XXI] In making globular smokeless powder grains (see Group XXI), a lacquer of nitrocellulose in a solvent is supplied, at 60‹C., by pump to grainer 4, where it enters, at 3, housing 17 behind orifice plate 15. The lacquer is extruded through orifices 16 and cut off by 4 radial blades 18 mounted on motordriven shaft 20 ; the speed of blade rotation and of lacquer extrusion being co-ordinated to provide bodies of length equal to diameter. Suspension liquor, at 60‹C., is simultaneously, continuously, supplied through pipe 21 to immediately suspend the lacquer bodies ; the rotation of the blades being sufficient to maintain suspension. The grainer is a closed vessel of say 1 gal. capacity, and the suspension of lacquer bodies passed out through tangential port 8 to a still, where the suspended bodies are rounded and hardened. Specification 473,057, 494,277, and 593,793 [all in Group XXI] are referred to.
Patent GB-868456-A (GB)
Title: Improvements in or relating to conveyors
IPC: B65G45/00
Filed: 1958-08-28
Abstract: 868,456. Endless-plate conveyers. RHYMNEY ENGINEERING CO. Ltd., and DAVIDSON, G. W. Aug. 21, 1959 [Aug. 28, 1958], No. 27641/58. Class 78 (1). In an endless-plate conveyer of the kind having overlapping plates 4 pivoted along their forward edges to axles which carry supporting-rollers 5 running on tracks 6, the axles being connected by a pair of driving chains, a surface 14 extends below the return run which collects fine material adhering to the plates 4, and some of the plates which may be longer than the remainder carry follower rollers 17 engaging a control rail 19 to maintain them against swing- ing rearwardly from vertically-depending position so that they act as scrapers to propel the fine material along the surface 14. At the tail end of the conveyer the rollers 17 pass from the rail 19 on to a cam 20 which maintains them in substantially horizontal position against a curved extension 16 of the surface 14 so that the fine material is returned to the upper run for mixing with fresh material, e.g. coal, from a supply hopper 10. The material on the upper run is discharged by a scraper 12 pivoted at 13. Deflector plates (not shown) direct fine material spilling from the upper run to the surface 14.
Patent GB-1345470-A (GB)
Title: Reinforcing fibre board
IPC: B32B3/28
Filed: 1972-06-14
Abstract: 1345470 Laminates SESAME INDUSTRIES Ltd 14 June 1972 [7 Jan 1972] 27800/72 Heading B5N  Reinforced fibre board 10 has at least one corrugated inner sheet 16 and at least one outer liner 12, 14 and has bonded to the sheet and/or the liner a reinforcing tape 18 coated on at least one side with a hot melt adhesive heat stable below 150 F. The tape is introduced between the sheet and liner during manufacture and the sheet, tape and liner are heated to tackify the adhesive. Pressure may be applied during the heating. The tape may be weftless and comprise a plurality of elongated rayon, nylon, polyester or cotton filaments bonded by the hot melt adhesive, or it may be woven, plastics, glass, steel, aluminium, reinforced paper or scrim. Specified adhesives comprise as low molecular weight base material, coumarone-indene resin, mineral, vegetable or petroleum wares, alkyds, terpene and phenolformaldehyde resins and as high molecular weight reinforcement ethyl cellulose, polyvinyl acetate, polyethylene, polystyrene or polyamide. The product may comprise alternate corrugated sheets and liners to form a sandwich construction.