baber/WOPTO huggingface dataset:
Patent GB-272032-A (GB)
Title: Improvements in and connected with sectional boilers
IPC: F24H1/32
Filed: 1926-06-04
Abstract: 272,032. Binns, V., Binns, J., and Binns & Speight, Ltd. June 4, 1926. Sectional boilers.- Each section of a boiler is made of steel plate bent, as regards the sides and top, to form a hollow substantially L- shaped body B, the edges of said plate being welded together to form a joint J which is positioned externally of the fire-box. A projection P is also provided on each section to form a seating for the adjacent section. The bottom member M of the section is preferably of rectangular section and provided with spigots for connection to the side members prior to welding. The boiler is completed by a front plate K and a strengthened rear section H having an inwardly extending baffle plate H<1> through which the water may circulate.
Patent GB-354714-A (GB)
Title: Improvements relating to valves for controlling the feed water supply to steam generators
IPC: F22D5/10
Filed: 1930-05-08
Abstract: 354,714. Fluid - actuated valves. NORRIE, L. F., 30, South Fort Street, Bonnington, Edinburgh. May 8, 1930, No. 14135. [Class 135.] Valves controlled by pilot or relay valves.-A valve device for controlling the supply of feed water to a steam generator through an economizer and adapted to byepass the economizer in the event of the economizer rupturing has the main valve or valves actuated by fluid pressure under the control of a relay reversing valve itself actuated by fluid pressure under the control of a spring - loaded auxiliary normally held closed by the pressure in the economizer. The oscillating disc relay valve 1 controlling the supply and exhaust to and from two conduits 3, 4 leading to the piston or pistons actuating the main valve or valves is coupled by a spindle 6 to a toothed quadrant engaging a rack formed on a spring-loaded plunger. This plunger is subject to the pressure in the conduit 10 when the auxiliary valve 13 is lifted by the spring 17 consequent on the failure of economizer pressure acting on a piston 14. A piston valve may be used in place of the lift valve 13 and any suitable mechanism may replace the rack and pinion. A bleed port 5 exhausts the actuating pressure when the valve 13 is closed.
Patent GB-788907-A (GB)
Title: Improvements in or relating to flyers for textile spinning and similar apparatus
IPC: D01H7/26
Filed: 1955-05-17
Abstract: 788,907. Preventing doubles; flyer spindles. CALVERT, Ltd., I. & I., and TATE, C. May 3, 1956 [May 17, 1955], No. 14156/55. Class 120(2) Doubles in textile spinning and similar apparatus are prevented by a flyer the tubular head of which, or means associated with the head, is provided on its upper end with an undercut tooth or teeth. The teeth 2 of a tube 1 of synthetic resin, metal or hard rubber, secured to the head of a flyer 6 by friction or by grub screws or by screwing on to a threaded part of the flyer 6. are formed by oppositely inclined notches 3, 4. The yarn is threaded in the usual way through the bore 7 and through an aperture 8 to a flyer eye. If a broken end of yarn joins with an adjacent unbroken end, the broken end is trapped by a tooth 2 and the tension in the unbroken end increases between the aperture 8 and the eye until it breaks.
Patent GB-434971-A (GB)
Title: Improvements in rollers for spinning and preparing machines for textile fibres
IPC: D01H5/74
Filed: 1934-05-11
Abstract: 434,971. Rollers for preparing and spinning machines. HUGHES, H. C., 90, Old Moat Lane, Withington, Manchester. May 11, 1934, No. 14242. Drawings to Specification. [Class 120 (ii)] Metal drawing-rollers for preparing and spinning machines are covered with an inner layer of soft resilient rubber or rubber composition and an outer layer of cellulose acetate composition. Specifications 349,990 and 391,788 are referred to.
Patent GB-277074-A (GB)
Title: Improvements in or relating to latex shipping containers
IPC: B65D13/00
Filed: 1926-06-07
Abstract: 277,074. Hopkinson, E. June 7, 1926. Non-metallic hollow-ware; linings.-A container for shipping rubber latex is constructed of or lined with unvulcanized rubber so that the latex is in contact only with unvulcanized rubber. The constructions illustrated comprise all-rubber containers, Fig. 1 showing a relatively thickwalled cylindrical body member 1 closed by tapered plugs 2, 3 which may be flanged as shown at 4, one plug being provided if desired with a vent opening 5. Fig. 2 shows a container comprising a cylindrical body portion 6 the ends 7 of which are flattened and seamed fluid-tight by pressure. Fig. 4 shows the preferred form of container, a bag 10 consisting of superimposed sheets 11, 12 of crude rubber the margins 13 of which are pressed together upon an intervening layer 14 of soft or spongy rubber such as is obtained by the process described in Specification 157,978, [Class 70, Indiarubber &c.]. The containers may be protected by external sheaths or casings but are preferably hardened externally by immersion in a 3 per cent solution of bromine or other halogen as described in Specification 192,039, [Class 70, Indiarubber &c.]. The latex is preferably de-hydrated to some extent before being placed in the containers and a preservative such as a weak solution of ammonia is added to prevent coagulation.
Patent GB-580927-A (GB)
Title: Improvements in connection with strip-feeding mechanism in machines for delivering postage stamps
IPC: G07F11/68
Filed: 1944-07-26
Abstract: 580,927. Feeding webs. SODECO SOC. DES COMPTEURS DE GENEVE. July 26, 1944, No. 14298. Convention date, June 26, 1943. [Class 100 (i)] [Also in Group XVIII] In a strip-feeding mechanism, which is especially applicable for feeding and delivering postage stamps and which can deal with one or two strips 3, 4, at a time, the strips are fed by toothed drums 1, 2, and are guided by combs 8, 9 to friction feed rollers 15, 16, driven from the drums at a slightly higher peripheral speed than the drums, and two strips may be led to a common cutting device 33 for simultaneous delivery of the cut stamps. The rollers 15, 16 are connected by gears 21, 22 to gears 23 on the shafts of the drums 1, 2, and they coact with sectional rollers 32 mounted in a frame with wedge-shaped sides carried by axles 28 which can slide in bearing slots 27 so that the rollers 32 bear by gravity on the discs 15, 16, the rollers 32 bearing on alternate discs 15, 16 as shown in Fig. 2. The drums 1, 2 are formed with annular grooves 7 into which the combs 8, 9 project so as to act as strippers. After passing the rollers 15, 16, 32, the strips are guided on each side by comb devices to the cutting-knives. The combs 8, 9 are formed with recesses 13, 14, and the strips are arranged so that the gummed sides are positioned away from one another.
Patent GB-1036707-A (GB)
Title: Improvements in and relating to a suction unit, particularly for cleaning apparatus
IPC: A47L5/22
Filed: 1964-04-08
Abstract: 1,036,707. Suction cleaning apparatus. A. S. FISKER & NIELSON. April 8; 1964 [Oct. 1, 1963], No. 14471/64. Heading A4F. [Also in Division F1] A suction unit, particularly for a suction apparatus for removing cleaning water from floors, comprises two stationary annular plates 15, 16 located between the suction fan 9, 10 and its drive motor 4, 5 and defining an annular diffuser into which extends a disc 20 secured to the motor shaft 8 to define with the plate 15 a convergent annular nozzle 24. In the suction apparatus for cleaning water illustrated the suction unit is mounted at the upper end of a water collecting container 1, and has a housing 2 provided with an inlet 13 communicating with the container 1. Air is drawn primarily by the fan 9, 10 through the inlet 13 and discharged through the nozzle 24, the diffuser 15, 16, apertures 22 in an intermediate wall 23 and slots 14 in the housing 2; and this primary air flow draws into and through the diffuser 15, 16 a secondary air flow through inlet slots 18 in the housing 2, and over the motor 4, 5 to cool the latter. The suction unit may alternatively be used in a pneumatic conveyer for pulverulent or granular materials, or as a ventilation unit.
Patent GB-950948-A (GB)
Title: New 21-unsubstituted í¸-3-oxo-20-hydroxy-pregnenes
IPC: C07J7/00
Filed: 1960-04-25
Abstract: The invention comprises (1) a 21-unsubstituted D 4 -3- oxo -20- hydroxy-pregnene containing a 9, 11-double bond or a 9, 11b -oxido group, or a D 5 -3- ketal thereof; (2) a D 5 -3- ketal of a 21-unsubstituted D 4 -3- oxo-11, 20-dihydroxy-pregnene or an 11-acylate thereof, an 11b -hydroxy group being esterified with an aliphatic carboxylic acid and an 11a -hydroxy with an aliphatic or aromatic carboxylic or sulphonic acid; (3) D 4 -3- oxo -11a - acetoxy -20- hydroxy-pregnene; and (4) D 4 -3- oxo -11a - tosyloxy -20-hydroxy-pregnene. The ketals may be, for example, ethyleneketals, hemithioethyleneketals or propyleneketals.  These compounds may be prepared by the process described and claimed in Specification 950,949 or by reducing corresponding 20-oxo compounds in which the D 4 -3- oxo-grouping and any other group sensitive to the reducing agent has been previously protected. Products may be ketalized. Detailed examples are provided. Ketalization of D 4 -3- oxo -11a -tosyloxy -20- hydroxy-pregnene giving some of the D 5 -3- ketal but mainly D 5, 9(11) -3-ethylenedioxy -20b - hydroxy-pregnadiene. 21-Unsubstituted D 4 -3, 20-dihydroxy-pregnenes are prepared by reducing the corresponding D 4 -3, 20- diketones.  D 5 -3- ethylenedioxy -11a - tosyloxy -20- oxo-pregnene is prepared by oxidizing D 5 -3- ethylenedioxy -11a - acetoxy -20b -hydroxy-pregnene to D 5 -3- ethylenedioxy -11a - acetoxy -20- oxo-pregnene, hydrolysing this to D 5 -3- ethylene-dioxy -11a - hydroxy -20- oxo-pregnene and esterifying this.
Patent GB-1249594-A (GB)
Title: Improvements in and relating to spot disk brakes
IPC: F16D55/00
Filed: 1970-03-25
Abstract: 1,249,594. Disc brakes; preventing rattle; actuating cylinders. AISIN SEIKI K.K. 25 March, 1970 [25 March, 1969], No. 14542/70. Headings F2E and F2F. A spot disc brake comprises friction linings 24, 38, a backing plate 22 of lining 24 being movable directly by a piston 16, and a backing plate 40 of lining 38 being movable by piston 18 via a reaction transfer plate 28 and a reaction transfer plate support member 36. Pistons 16, 18 are contained in a cylinder housing 14, and pins 42, 44 on which backing plates 22, 40 are movable are fixed to the cylinder housing 14 by clips 46, 48. The pins 42, 44 also pass through apertures 57, 59 in support member 36, and are bent outwardly and secured to guide parts 50, 52 formed integrally with the cylinder housing 14. As shown in Fig. 3, the support member 36 comprises a plate 55 formed with integral flanges 54, 56 which engage inner edge 34 of the transfer plate 28. As seen in Fig. 4 (not shown), plates (154, 156) are rivetted to a main plate (155) and the plates (154, 156) are resilient to prevent rattle. As seen in Figs. 5 and 6 (not shown), projections are formed from the main plate. The main plate may also be formed with a horizontal groove to support the inner edge 34 of the reaction transfer plate 28. The piston 18 is engaged with inner edge 36 of the transfer plate 28 through a skin 30 and is held in place by a spring 32.
Patent GB-278406-A (GB)
Title: Improvements in or relating to loud-speaking telephonic receivers
IPC: H04R13/02
Filed: 1926-06-09
Abstract: 278,406. Ferranti, S. Z. de, and Ferranti, Ltd. June 9, 1926. Magnetic instruments.-An electromagnetic loudspeaking receiver embodies a straight cobalt-steel or like permanent magnet k, against the extreme end surfaces of which are clamped laminated soft - iron pole pieces n furnished with windings o. The laminae are cranked to converge at the region of their cooperation with a sound-producing diaphragm c. The magnet is supported by a diaphragm a which is kept under stress by an adjusting-screw q.
Patent GB-138257-A (GB)
Title: Improvements in electric insulators
IPC: H01B17/42
Filed: 1919-06-11
Abstract: 138,257. Lutz, R. June 11, 1919. Insulators.-Two reversed metal cups C are screwed on to an insulating spindle A so that one cup enters the other. For high tensions, the spindle A may have an insulating sleeve B, the space between the spindle and sleeve being packed, or filled with insulating material. The insulators may be hung in a vertical series, or they may be inclined or horizontal, Fig. 5, in which case a portion of the outer cup is flattened as shown, for protection from rain, snow, &c.
Patent GB-1365010-A (GB)
Title: Purification of wet process h3po4 by solvent extraction
IPC: C01B25/46
Filed: 1972-03-29
Abstract: 1365010 Purification of phosphoric acid USS ENGS & CONSULTANTS Inc 29 March 1972 [29 March 1971] 14873/72 Heading C1A Iron aluminium, magnesium and organic impurities are removed from wet-process phosphoric acid obtained by digesting phosphate rock with sulphuric acid to form a slurry comprising phosphoric acid, calcium sulphate and sulphuric acid and separating the slurry into a solid phase and an aqueous, liquid phase, using a process comprising (a) concentrating the aqueous liquid until it contains at least 50 wt. per cent P2O5, (b) extracting the concentrated aqueous liquid phase with a solvent for phosphoric acid, the solvent being selected from n-hexanol, nheptanol, n-octanol and iso-octanol and mixtures thereof so that at least 50 wt. per cent of the P2O5 in the aqueous liquid phase is transferred to the solvent phase and at least 50 weight per cent of the iron, aluminium and magnesium originally present remain in the aqueous liquid phase, (c) stripping the phosphoric acid rich solvent phase with water so that at least 90 wt. per cent of the P2O5 in the solvent phase is transferred to the aqueous phase, (d) recycling the stripped solvent from step (c) to step (b), and (e) recovering the purified phosphoric acid.
Patent GB-568767-A (GB)
Title: Improvements in electric terminals
IPC: H01R4/36
Filed: 1943-09-10
Abstract: 568,767. Mounting terminals. GENERAL ELECTRIC CO., Ltd., and RICHARDS, S. W. Sept. 10, 1943, No. 14885. [Class 38 (i)] A binding post comprises a metallic block 1 having holes 2 in which the wires are clamped and a fixing bolt 6 spaced from the block by insulating material 9 which keys with projections 5, 7 on the block and bolt, respectively. A screw-driver slot 4 may be provided in the block.
Patent GB-144284-A (GB)
Title: A machine for levelling printing characters
IPC: B41B5/08
Filed: 1920-06-01
Abstract: 144,284. Addressograph, Ltd., (Assignees of Duncan, J. S.). Aug. 7, 1916, [Convention date]. Printing-surfaces.-In a machine for levelling stamped-up characters of printing plates, the plates are brought by a carriage on to a supporting bed, and the characters are then levelled by a pressing-device traversed by a pivoted lever over the plate. As shown, the plate 6 is carried from the stamping apparatus to the bed 18 by a gripper 7 on a carriage 8, which is drawn along the guide 11 by a band connected to a spring drum. The pressing-device comprises a roller 24 mounted in arms 23 of a carriage 21, which is traversed along a guide-plate 20 on the bracket 17 by means of a hand-operated lever 27 pivoted on a pin 28, and having an arm 31 connected by a link 32 to the carriage 21. A spring is connected to the lever 27 to return it to its normal position. An aritifriction roller 25 with flanges 26 is arranged between the roller 24 and the plate 20.
Patent GB-669854-A (GB)
Title: Improvements relating to control systems for dynamo electric machines
Inventor: SHAW NORMAN HARRY
IPC: H02P7/34
Filed: 1949-06-03
Abstract: 669,854. Control of D.C. motors. ENGLISH ELECTRIC CO.,.Ltd. May 26, 1950. [June 3, 1949] No. 14959/49. Class 38 (iii). [Also in Group XXXV] A system for regulating the armature current of the generator 1 of a Ward-Leonard set 1, 2 comprises a resistance 8 across which a voltage proportional to armature current is developed and a source of reference voltage developed across resistors 11 by means of a transformer 13 and rectifier 12 so that at load currents of the generator 'below a value at which the voltage drop across resistor 8 is less than the biasing voltage applied to each half of the centre tapped resistors 11, rectifiers 9, 10 prevent current flow in control windings. 6a, 7a of of magnetic amplifiers. 6, 7. If, however, the load current of the generator becomes such that the voltage exceeds the biasing voltage applied to each half of 11 the current will flow through rectifier 10 (assuming main current flow is direction A) and in the control windings of the magnetic amplifiers which become saturated. Owing to the reverse connections of the windings 6a, 7a current will only flow in the output of one of the magnetic amplifiers, e.g. 6, so that a voltage is developed across a resistor 15 and applied to a field winding 3b of an exciter 3 which reduces the excitation of the field 1a of the generator. If the current flow in the main circuit becomes excessive in the opposite direction due to regeneration by the motor 2, current flows through rectifier 9 and the output of the magnetic amplifier 7 is developed across a resistance 17 so that a voltage is applied to exciter winding 3b in a sense to cause increased excitation of the generator field 1a. Alternatively, two opposing field windings may be provided on the exciter 3 which are supplied differentially from the magnetic amplifiers. The voltage dependent on armature current may alternatively be derived from an impedance constituted by an interpole winding on the generator 1.
Patent GB-739784-A (GB)
Title: An improved ball bearing
IPC: F16C27/04
Filed: 1954-05-24
Abstract: 739,784. Ball bearings. ANTHONY, S. V. May 24, 1954 [May 28, 1953], No. 15158/54. Class 12 (1). A ball bearing comprises an outer member 15, having an inwardly directed flange 16 of which a part 17 is arcuate to form the inner race for a series of balls 19, and an inner member 11 having an outwardly directed flange 12 of which an arcuate portion 13 forms the outer race for the balls 19. The bearing may take thrust in a direction forcing the flanges 12, 16 towards each other.
Patent GB-420094-A (GB)
Title: Improvements in or relating to protective circuits for electric signal transmission lines
IPC: H04B3/46
Filed: 1933-05-25
Abstract: 420,094. Transmission systems. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.-(Assignees of Curtis, A. M. ; 132, North 19th Street, East Orange, New Jersey, U.S.A.) May 25, 1933, No. 15183. Convention date, June 1, 1932. [Class 40 (iv)] The peak voltage in an alternating-current signal transmission line, e.g. a telephone circuit connected to a submarine cable, is limited by one, or an opposed pair of, hot cathode three-electrode gas-filled discharge devices, the path between two electrodes being shunted across the line to maintain a constant voltage after the breakdown of the device while the breakdown voltage applied to the third electrode is higher than the line voltage or the constant voltage. The slight delay in action gives rise to steep-sloped peaks comprising the higher frequencies and these are removed by a low-pass filter. The arrangement is described as applied to the receiving circuit at a cable terminal where high voltages from a transmitting circuit 10 may pass into the receiving circuit due to some irregularity in the operation of the conditioning relays 17, 18. The electrodes 33, 34 of opposed discharge tubes 31, 32 are connected across the receiving circuit, and break down voltage is applied to electrodes 35 by a step-up transformer 38. The voltages applied to electrodes 35 may also be stepped up by an amplifier 42, Fig. 2. Other current limiting devices such as iron-cored inductances 39, 40 may be inserted in the circuit and a fuse 41 may be provided. A low-pass filter 231 may follow the voltage limiter for the purpose described. To prevent excess voltage being transmitted to the cable, the power amplifier 21 may be followed by a cold-cathode discharge device 22 and a filter 23. Specifications 396,443 and 397,940 are referred to.
Patent GB-649605-A (GB)
Title: Improvements in or relating to means for attaching a frame for supporting a sidecar or the like to a motor cycle
IPC: B62K27/08
Filed: 1948-06-04
Abstract: 649,605. Side-car attachments. K. V. P. MOTORS, Ltd., and KIMBERLEY, B. H. June 4, 1948, Nos. 15209 and 25056. [Class 136 (iii)] Means for attaching a sidecar or the like to a motor-cycle comprises a frame 2 for supporting the sidecar body 1, the frame being pivotally connected at each end 3, 7 to the motor-cycle 6 in such a manner that the pivotal points 3,7 are located in a horizontal line passing through the rear wheel 9 of the motor-cycle and its spindle 10, and a pivotally mounted frame 15, in which the spindle 17 of the sidecar wheel 16 is supported, connected to the frame of the motor-cycle by means such as a link 20 which keeps the sidecar wheel and the rear wheel of the motor-cycle parallel to one another. As shown in Fig. 2, one end of the link 20 is pivotally mounted at 19 to an inverted U-shaped member 18 straddling the upper half of the sidecar wheel 16 and the other end is connected at 21 to the saddle tube 8 of the motor-cycle, the pivotal connections 19, 21 being in the same horizontal plane. The frame 2 is connected at 3 to a rearward extension 4 of the motor-cycle frame 5 and at 7 to the motor-cycle down tube. The frame 15 is pivotally connected at 13, 14 to two extensions 11, 12 of the frame 2, the connections 13, 14 being on a horizontal straight line passing through the middle of the sidecar wheel 16 and its spindle 17. In a modification shown in Fig. 3 a tie-rod 22 is pivoted at 19 to the member 18 and attached at a point 24 mid-way between the motor-cycle rear wheel 9 and the sidecar wheel 16 to a further tie rod 23 pivoted at 21 to the motor-cycle frame. At the connecting point 24 the tie rods 22, 23 carry a depending lug 25 fast with a tube 26 which is slidable on a rod 27 secured between lugs 28, 29 on the rear transverse member 30 of the sidecar frame 2. Damping springs 31, 32 are provided between the ends of the tube 26 and the lugs 28, 29.
Patent GB-1172495-A (GB)
Title: A Tool for Cutting Polygonal Openings with Tapered Side Walls in Synthetic Hard Foam Plastics Plates
IPC: B26D1/00
Filed: 1968-03-29
Abstract: 1,172,495. Chisels. G. BAUKNECHT G.m.b.H. ELEKTROTECHNISCHE FABRIKEN. 29 March, 1968 [7 April, 1967], No. 15245/68. Heading B4B. A tool for cutting polygonal openings with tapering side walls in synthetic hard foam plastics plates comprises a spatulate blade having a contour forming to the required shape of a side wall of the opening, a leading edge 3 in the form of a V-shaped or convex serrated cutting edge and side edges 4 in the form of smooth bevel-cut knife edges. The tool has apertures 8 whereby it can be attached to a toolholder reciprocable at a prescribed angle to the surface of the material to be cut.