baber/WOPTO huggingface dataset:
Patent GB-723488-A (GB)
Title: Improvements in or relating to internal shoe-drum brakes
IPC: F16D51/52
Filed: 1952-10-13
Abstract: 723,488. Infernal shoe-drum brakes. BENDIX AVIATION CORPORATION. Oct. 13, 1952 [Oct. 17, 1951]. No. 25612/52. Class 103 (1). In self-energizing or servo-shoe internal shoe drum brakes the anchoring means for the end of the brake shoes comprises an anchor post which acts as a guide for a bearing slidably mounted on said anchor post and allowing radial movement of the brake shoes. In the internally expanding brake illustrated, brake shoes 14, 16, operated by the hydraulic cylinder 84, are mounted on a backing plate 10 secured to a suitable stationary part of the vehicle. The shoes are circumferentially arranged in end-to-end relationship and are provided with friction linings 22, 28 secured to rims 18, 26 respectively. The lower ends of the shoes 14, 16 are connected together by means of an adjustable thrust connection or adjustor 34. Located between the other pair of adjacent shoe ends is an anchor assembly 48. This assembly comprises a rigid anchor post 50 secured to the back plate 10 and projecting laterally outwardly beyond the plane of the shoe webs 20 and 24. The anchor post 50 is provided with two parallel flat surfaces 54 on which is fitted a hardened anchor bearing 58 which is allowed a slight radial movement on the surfaces 54. A U-shaped clamp 60 is fitted into the assembly;,one leg 62 of which is secured to the face of the bearing member 58 remote from the backing plate 10. The other leg 78 of the clamp 60 lies adjacent but spaced from outer end of post 50 and is provided with a slot 80 for connecting return springs 82 thereto. Retaining the anchor bearing 58 against the abutment shoulders 55 and preventing any lateral movement of the bearing assembly is a plate spring 68. A slight modification is described wherein the bearing 58 and the clamping member 60 are integrally constructed and where the anchor bearing, instead of being welded to the back plate 10 as illustrated in Fig. 2, is releasably secured to the back plate by means of a nut.
Patent GB-974072-A (GB)
Title: Expansion of the pyrrole ring to the pyridine ring
IPC: C07D213/06
Filed: 1963-06-27
Abstract: A compound containing a pyrrole ring is converted to the corresponding compound containing a pyridine ring by contacting it with a molar excess of methanol and an acidic refractory oxide catalyst at a temperature of 200-650 DEG C. The catalysts used are acidic composites of two or more refractory oxides e.g. silica-alumina, silica-zirconia, silica-alumina-zirconia, silica-alumina-thoria, alumina-boria, silica-magnesia, silica-alumina-fluorine or zeolitic molecular sieves.  Suitable starting materials are pyrrole, 1-acetyl-pyrrole, 2, 4-dimethylpyrrole, 2, 5-dimethyl pyrrole, 1-ethyl pyrrole, 1-methyl pyrrole, 2-methyl pyrrole, 1-propyl pyrrole, 1-tertiarybutyl pyrrole, indole, 1-acetyl indole, 2-methyl indole, skertole, tryptophan indexyl, vinyl pyrroles and 2, 2-dipyrrole. In the examples (a) pyrrole is converted to a mixture of methyl and polymethylpyrroles, methyl pyridines and methyldihydro pyridines and (b) indole is converted to a mixture of methyl indoles, methyl dihydroquinolines and methylquinolines.
Patent GB-628217-A (GB)
Title: Improvements in or relating to mowing machines
IPC: A01D63/04
Filed: 1947-09-20
Abstract: 628,217. Reaping-machine attachments. CRAWFORD, PRINCE, & JOHNSON, Ltd., CRAWFORD, A., JOHNSON, B. T., and BARSBY, R. Sept. 20, 1947, Nos. 25645/47 and 13427/48. '[Class 6(iii)] A crop-dividing attachment for the outer end of a mowing-machine cutter-bar comprises, in combination, a forwardly-extending, upwardly-inclined member 1 to direct the crop towards the cutters 5, and a rearwardly-extending upwardly-inclined bar 7 dividing the cut from the uncut crop. The bar 1 has a rearward extension 1a provided with holes for engagement with the swath-board bolt 3. A conical shoe 6 is welded to the bar 1 to envelop the toe of the cutter bar. To enable the device to be adjustably mounted on any mower, the extension 1a may carry a pivoted plate 8, Fig. 6, with holes 9, 9' and a slot 11. When used with a windrowing attachment, the plate 8 may carry a further pivoted plate 14 running on an eccentric disc 15.
Patent GB-893993-A (GB)
Title: Improvements in or relating to printing machines
Inventor: GEORGE HERBERT EDWARD
IPC: B41F17/00
Filed: 1959-07-27
Abstract: 893,993. Feeding webs. GEORGE & MILLER Ltd. July 25, 1960 [July 27, 1959], No. 25725/59. Class 100(1) In a printing machine wherein a paper web is passed between a printing drum 11 and pressure roller 12 and a pin wheel drive 13 operates intermittently to draw the web forward by steps of a fixed length, during each of which a printed impression is made on the web, displacement of successive printed impressions relative to marginal holes in the web is prevented by a roller 23 extending across the width of the web and resting thereon so that, when the nip between the printing drum and pressure roller is relieved, the web is tensioned by the roller 23 to prevent it sagging between the pressure roller and pin wheel drive. The roller 23 is carried at each side by an arm 24 pivoted to the machine frame, the downward load being adjusted by counterweights 27. The roller 23 is prevented from drawing the web forward by resilient fingers 22 arranged to lightly grip the web against the plate 19. A brush may be mounted between the arms 24 to replace the roller 23, or a spring loaded roller or brush, slidable in guides in the machine frame is provided. The shaft carrying the pin wheels is driven by a synchronous electric drive device from the pressure roller 12 as described in Specification 845,788.
Patent GB-616126-A (GB)
Title: Wedge device for locking purposes
IPC: B62K21/26
Filed: 1946-08-28
Abstract: 616,126. Locking device for cycle parts. DURAND, M. P. Aug. 28, 1946, Nos. 25802 and 25803. Convention dates, Nov. 8, 1944, and Dec. 4, 1944. [Class 136 (iii)] [Also in Group XXV] In a device for locking an object inside a hollow cylindrical body of the kind comprising a semicylindrical wedge bearing directly against the inner wall of the hollow body and acting on a slope of similar shape provided on or secured to the object to be fastened, the wedge is notched so as to offer only a restricted medial zone in contact with the inner surface of the cylindrical body. As shown in Figs. 4 and 5, 10 is the sleeve, 13 the wedging piece recessed at 14 and acting on a sloped surface 15 of a column 16. The wedge is pulled up by a long screw 17. A tail-piece may be attached to the wedge threaded at its upper end to receive the pull of a short screw or the tail-piece may have a thread screwed by a blind nut.
Patent GB-439706-A (GB)
Title: Improvements in and relating to the construction of sound-proof floors
IPC: E04F15/20
Filed: 1934-09-07
Abstract: 439,706. Floors. TRUSSED CONCRETE STEEL CO., Ltd., and GREEN, D. H., Thames House, Millbank, London. Sept. 7, 1934, No. 25829. [Class 20 (iv)] A floor comprises reinforced concrete or like building elements a of channel section laid with the ribs b extending upwardly and having their inner sides provided with divergently disposed surfaces c as shown in Fig. 1, a series of bridge piece d arranged at intervals along the length of the elements and adapted to fit tightly against the divergent ribs c, and a resilient pad e or spring device mounted on the upper surface of each bridge piece d for supporting the floor joists f. The outer surfaces h of the ribs b may, as shown in Fig. 3 be slightly inclined, as at h, and provided with a groove i so as to form a recess between the ribs of adjacent elements for the reception of grouting j, and, if desired, reinforcement k. The spring device may take the form of a leaf spring, the ends of which rest on the bridge piece so that the centre portion supports the floor joist.
Patent GB-1489237-A (GB)
Title: Covering method recoverable article and insert
IPC: H01R4/18
Filed: 1974-06-11
Abstract: 1489237 Coated substrates RAYCHEM CORP 11 June 1974 [11 June 1973] 25851/74 Heading B2E [Also in Divisions B5 and H2] A substrate is covered with an insert and a recoverable member the insert comprising a corrugated "fusible material" or a "fusible member" having at least one protruberance, the recoverable member is recovered to cause the protruberances or corrugations to be detectable through the recoverable member and heat is applied to the fusible material or member to cause it to "flow". The recoverable member may be a sleeve, sheet or T, Y or X piece and is preferably heat shrinkable or expansible. It may be made of polyethylene, polypropylene, polyurethane, PVC, PTFE, a polyamide or polyvinylidene fluoride. The insert may be a coating on the inside or outside of the recoverable member. It may be made of solder, hot melt adhesive, polyethylene, polypropylene, a polyamide, polyethylene terephthalate, an epoxy resin, a polyurethane, a phenol-formaldehyde resin or a polyether sulphone. The protruberances may be on one or both sides of the insert and may be the same material as the insert or of a different material and may have a higher or lower melting point than the fusible insert. If of a lower melting point than the insert is used in a process where after the disappearance of the protruberances, heating is continued for a set time thereby to ensure melting of the insert. The protuberances may be disposed towards or away from the substrate and may be infusible e.g. particles of metal, ceramic or thermoplastics material, or hollow so that foaming agents in the liner produce a foam that occupies the space originally taken by the protuberances. They may be formed as bumps or continuous or discontinuous ridges over the entire insert or parts thereof, by extrusion, embossing, engraving (Figure 7 not shown) or coating e.g. using a spray head to give a helical ridge (Figure 8 not shown). Identical or differently shaped ridges and bumps may be formed over the insert. The "fusible member" comprises a "fusible material" which is defined as not only embracing those materials which show a sharp drop in viscosity at a particular temperature but also materials which are not strictly fusible but do become less viscous on heating e.g. initially flowable thermosetting materials such as epoxy resins, polyurethane resins and phenol-formaldehyde resins. A material is said to "flow" or to be flowable if it has substantially no stability of form under pressure exerted on it by the recoverable member.
Patent GB-1434917-A (GB)
Title: Isocyanates
IPC: C08G18/72
Filed: 1972-06-02
Abstract: 1434917 Polyurethanes IMPERIAL CHEMICAL INDUSTRIES Ltd 5 July 1973 [2 June 1972] 25860/72 Heading C3R [Also in Division C2] Polyurethanes may be prepared by reacting active hydrogen-containing compounds for example polyethers and polyesters with a polyisocyanate composition comprising from 82 to 99 % by weight of methylene bridged polyphenyl polyisocyanates and from 1 to 18% by weight of the distillation residue obtained by distillation of substantially all the tolylene diisocyanate and lower boiling diisocyanates from a crude tolylene diisocyanate obtained by phosgenation of a tolylene diamine, the distillation residue containing less than 2% by weight of tolylene diisocyanate.
Patent GB-258852-A (GB)
Abstract: 258,852. Charles, M. Sept. 22, 1925, [Convention date]. Turning-gear.-A switch in the ignition circuit is closed by the oil pressure in the lubricating system, and the absence of oil pressure at starting is met by the provision of a hand- or footactuated member a'. Depression of the hnob a<1> establishes connection between the conductive rings d<1>, h<1> and conductive spindles f<1> the terminals of which are connected in the circuit of the starting and ignition systems. Insulation e<1> breaks the circuit of this starting device when the knob a<1> is released. In a modification, Fig. 5, the release is made gradual. The lever a<3> is actuated to establish contact between the sleeve d' and plugs f<1>, and in so doing raises the piston q<1> within the cylinder r'. When the lever is released the spring p<1> causes the return of the piston but only in such time as the air within the cylinder may take to work past the ball valve z<2>.
Patent GB-660108-A (GB)
Title: Improvements in and relating to magnetic induction accelerators
IPC: H05H11/00
Filed: 1947-09-24
Abstract: 660,108. Magnetic induction accelerators. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 24, 1947 [Sept. 25, 1946], No. 25950/47. Class 39 (i). In a betatron the rate of change of the magnetic flux is similar to that of the guide field during one part of the operating cycle up to t, and is increased without increasing the rate of change of the guide field during another part of the operating cycle, beyond t, so that as the particles approach high energy levels, undesired deviations of the particles from the equilibrium orbit due to radiation losses are avoided. At time t, a voltage pulse Vc is superimposed of the normal voltage VN for producing the flux #N. The enhanced flux #c compensates for the radiation losses. A second corrective voltage pulse may be applied at a slightly later time. The betatron has a winding surrounding only the central core, and windings surrounding both the orbital path of the particles and the central core. The circuit arrangement is such that the betatron 1:2 relationship is preserved and the voltage pulse applied to the two sets of windings causes the rate of change of the flux to be increased without varying the conditions of the guide field. A D.C. biassing field may be superimposed on the alternating guide field. Specifications 565,864, 574,812, 585,992, and 646,197 are referred to.
Patent GB-990104-A (GB)
Title: Improvements in or relating to hydraulic jacks
IPC: B66F3/42
Filed: 1963-07-01
Abstract: 990,104. Hydraulic control systems. R. C. PEARSON. Feb. 17, 1964 [July 1, 1963], No. 26036/63. Heading F1P. [Also in Division F2] Valves 9 and 10 in the supply conduits 33 and 7 to opposite sides of a differential jack 1 are open during normal operation of the jack but close in the event of failure of the supply pressure. The valves are identical in construction and comprise a valve closure member 11 connected to a piston 15 and loaded to the closed position by a spring 13. With the valve in the closed position, the pressure of fluid in a chamber 14 acts equally on the valve closure and piston which is thus pressure balanced. A main piston 18, of larger area than the piston 15 is moved by fluid pressure acting in opposition to a spring 20 to open the valve at a predetermined pressure. In operation of the valve 10, the supply pressure is fed to a port 22 and through a branch 26 and non return 27 to act on the piston 18 to open the valve thus allowing flow between ports 22 and 24. If the supply pressure fails, the pressure acting on piston 18 can escape through passage 31 and the valve closes. However, if the jack continues moving to the left due to inertia, the pressure in the line 25 acts to hold the valve open to allow flow from port 24 to 22 thus acting as a deceleration valve for the jack until it is stopped. The valve 9 acts in a similar manner.
Patent GB-235770-A (GB)
Title: Improved apparatus for automatic gravimetric analyses of gas
IPC: G01N5/02
Filed: 1924-11-04
Abstract: 235,770. Hartung, C. A. Nov. 4, 1924. Apparatus fitted to gas analysis appliances; weights.-In apparatus for automatic gravimetric gas analysis, an absorption vessel a, to and from which the gas is conveyed by flexible tubes c and d, is hung from a balance f, and a device is provided which, as the vessel increases in weight, adds weight to the opposite arm of the balance, so that the vessel is kept approximately at a constant height. As shown, a contact w is attached to the bottom of the vessel end dips into mercury s when the vessel descends. A circuit is thus closed through an electric motor o which causes a drum k to pay out a heavy chain i attached to the balance arm. The drum shaft, by means of a pulley and cord y, adjusts the position of a pen z tracing a record on a rotary drum. If necessary, the motor is reversed by closure of a second circuit through a contact x on the balance arm and an upper fixed contact u.
Patent GB-178046-A (GB)
Title: Improvements in the manufacture of sulphate of ammonia
IPC: C01C1/242
Filed: 1921-10-06
Abstract: In the manufacture of ammonium sulphate the paste of crystals discharged from the saturator is allowed to drain under conditions which prevent further crystallization during the draining process. Preferably the paste is discharged into a closed draining-vessel, which is heated to a temperature not above that of the crystals.  The process may be carried out in conjunction with that described in Specification 152,766, for improving the colour of ammonium sulphate.
Patent GB-159547-A (GB)
Title: Improvements in spinning machines
IPC: D01H1/00
Filed: 1919-10-29
Abstract: 159,547. Lomas, Ltd., J., and Moss, F. Oct. 29, 1919. Spindle apparatus. - The spindles of spinning-frames of the Chapon type, wherein cops are spun and wound on a sliding spindle, having a flanged and longitudinally grooved top, by means of a flyer that delivers the yarn through a slot in a driven cup, are provided with a washer 5, splined thereon beneath the flange 2 to ensure a. square and solid winding at the end of the cop, and the usual longitudinal flutings of the spindles are nicked, as shown at 8, so that when doffing the end of the yarn is caught therein and drawn out of the cop. In the Provisional Specification it is stated that the washer may be loose on the spindle.
Patent GB-1136727-A (GB)
Title: Improvements in or relating to the collection of synthetic polymeric yarns or filaments
Inventor: CURTIS HAROLD EDWARD
IPC: D01H1/30
Filed: 1965-10-01
Abstract: 1,136,727. Driving spindles and rollers; builder motions. IMPERIAL CHEMICAL INDUSTRIES Ltd. 19 Sept., 1966 [1 Oct., 1965], No. 26810/68. Divided out of 1136726. Heading D1D. [Also in Division G3] The description is the same as that of Specification 1136726 but the claims relate to a method of winding a package of synthetic polymeric filament or yarn in drawing or other over-end winding apparatus in which filament &c. is fed to a spindle over a rotating processing roller or rollers (e.g. a single roller, a roller with a separator roller or a pair of nip rollers), in which method the winding cycle comprises start-up, main, and slow-down periods, the slow-down period being programmed in such a way that during the first part of the period, the spindle speed is positively controlled in a predetermined relationship to the speed of the roller or rollers until the latter become stationary, whereafter, the spindle is brought to rest. The invention aims to avoid breakages, loops, and streaks by maintaining a stable balloon. The predetermined relationship includes two components: (a) one maintaining strict proportionality between the spindle and roller speeds, and (b) one to maintain a constant spindle speed that would maintain a constant tension in the balloon with the roller(s) stopped. The start-up, and main periods may also be programmed. In the start-up period, manually-adjustable timing-means ensure that the roller(s) is/are connected to the drive after the spindle has been connected to separate drive-means therefor; in this way, the balloon tension will have reached its requisite value by the time the rollers start, the delay being kept to a minimum to keep the waste-bunch as small as possible. In the main period, the roller(s) is/are driven at constant speed and the spindle separately therefrom according to a predetermined programme which aims to maintain the balloon tension constant, and includes a general reduction of the spindle speed, and may also include cyclic variation of the speed to avoid patterning. In the slow-down period, after the drive to the rollers is stopped, the balloon tension is maintained by continuing to drive the spindles against light braking restraint; the brakes are not fully applied until the rollers have completely come to rest. To allow for the winding of a waste bunch, a second timer is provided to ensure that the ring-rail is not stopped until after the rollers come to rest.
Patent GB-277189-A (GB)
Title: Improvements in or relating to ships cabins
IPC: B63B3/68
Filed: 1926-10-27
Abstract: 277,189. Baker, P. E. Oct. 27, 1926. Cabins .-Arrangements, for varying the berthing accommodation of adjacent cabins or compartments where two superposed berths are arranged against a partition common to the cabins comprise a movable panel i which may be moved from the position shown in Fig. 1 to that shown in Fig. 2, where the lower berth has been opened to the adjacent two-berth cabin and closed to the cabin in which it was originally located. A movable partition j allows the storage space beneath the berth to be similarly adjusted.
Patent GB-1389810-A (GB)
Title: Production of glass-fibre reinforced polymer bodies
IPC: C08F214/00
Filed: 1973-06-05
Abstract: 1389810 Laminates DYNAMIT NOBEL AG 5 June 1973 [7 June 1972] 26879/73 Heading B5N [Also in Divisions B2 and D1] In a process for the production of a glass fibre reinforced vinyl chloride thermoplast, prior to incorporation in the thermoplast the glass fibre reinforcing material, which may be in the form of woven or non-woven fabric, loose cut filaments or staple or short fibres, is coated with a bonding agent comprising a vinyl chloride/vinyl trialkoxysilane copolymer. The latter copolymer may also comprise further co-monomers such as vinyl acetate, vinyl propionate, vinyl stearate, vinyl laurate, a #-alkylated pivalic acid vinyl ester, a vinyl versatic ester, di-2-ethylhexyl or dicyclohexyl fumarate or maleate, butyl, iso-butyl or iso-octyl acrylate or methacrylate, or 2-ethylhexyl or isobutyl vinyl ether. It may be applied, optionally together with epoxidized soya bean oil as stabilizer, as a solution or dispersion by impregnation under vacuum. Prior to application of the bonding agent, the glass fibre reinforcing material may be sized with a chromium methacrylate complex or a substituted alkyl trialkoxysilane. The vinyl chloride thermoplast to be reinforced may be a vinyl chloride homopolymer or copolymer with ethylene, propylene or vinylidene chloride, or a chlorinated PVC or copolymer. In the examples, woven glass fibres are coated with the bonding agent, dried, stacked alternately with PVC films and the stack heated under under pressure in a platen press.
Patent GB-1526981-A (GB)
Title: Dry shavers
IPC: B26B19/04
Filed: 1976-05-17
Abstract: 1526981 Dry shavers GILLETTE CO 17 May 1976 [25 June 1975] 26907/75 Heading B4B A cutter blade for the movable inner cutter of a dry shaver having an outer shaving foil, the cutter blade comprising a metal strip 10 formed along one edge as a cutting edge 11 and having integrally formed springs 13 at its opposite edge 12 the springs being formed by elements partially severed from the blade and bent out of the plane thereof to be resiliently deformable in a plane parallel to the plane of the blade.