baber/WOPTO huggingface dataset:
Patent GB-525899-A (GB)
Title: Improvements in ink fountain typing machines
IPC: B41J31/16
Filed: 1939-03-02
Abstract: 525,899. Ink-ribbon mechanisms. PELTON, G. E. March 2, 1939, No. 6900. [Class 100 (iv)] In a typing machine, ink is supplied in minute quantities to the ribbon 17 from a reservoir 22 by a roller 51, the ink being thinned by agitation during rotation of the roller. The ink flows by gravity down the annular spaces 45 between the rollers 51 and the housings 43 which are extentions of the base of the reservoir. The ribbon is held in contact with the inking wheels by guides 25 and .guide pulleys 47. Between each spool and the corresponding guide pulley the ribbon passes over a felt pad 16 which spreads the ink uniformly over the surface of the ribbon. A felt collar may be fitted to the roller 51 at its point of contact with the inking wheel 30. To retard the feed of ink ,and prevent drops forming when the roller is stationary, a strip of wire cloth 34 may be fitted between the roller and the inking wheel. The latter are geared together by gears 37, 68. The gear 37 with its inking wheel 30 is pressed into engagement by a spring 76 but is regulated or held out of action by lever 75 engaging a cam 72 on arm 60. Drain cups 52 transmit the surplus ink via holes 69 and 70 into a detachable drain pan 71. Arms 44 rotate with the rollers 51 and serve to mix the ink.
Patent GB-1049761-A (GB)
Title: Improvements in the production of slide fasteners
IPC: B29D5/02
Filed: 1963-02-21
Abstract: 1,049,761. Moulding sliding clasp fasteners. J. C. SIEGRIST. Feb. 7, 1964 [Feb. 21, 1963], No. 6936/63. Heading B5A. In method of moulding sliding clasp fasteners, two tapes 16 are drawn between dies 1 and 2, the dies closed, and plastics material injected into mould cavities 6 and 7 around the beaded edges of the tapes. During the moulding a T- shaped member 12, slidable in the lower die 2, is urged by a spring downwards on to a retracted wedge member 18. Upon withdrawal of the upper die the wedge member 18 is released and moves, under the action of a spring, to the position shown in Fig. 4 thus raising member 12 and freeing the formed fastener from the lower die. The formed fastener is then removed and a further length of tape introduced between the dies by the apparatus of Figs. 1 and 2 (not shown).
Patent GB-1146891-A (GB)
Title: Quick release hook mechanism
Inventor: MILES RANDOLPH HOWARD
IPC: B66C1/34
Filed: 1966-02-17
Abstract: 1,146,891. Hooks. AEROCOMPONENTS Ltd. 15 Sept., 1966 [17 Feb., 1966], No. 6967/66. Heading E2A. A hook assembly comprises a body A, a jaw B pivotally mounted on the body and settable to an operative position, the jaw being provided with a groove I for a link, sling or cable-eye when the jaw is set to the operative position, means e.g. a pawl D for releasably holding the jaw in the operative position, and support means in or on the body whereby the hook assembly can be coupled to load handling means, the assembly being characterised in that when the jaw is in the operative position, the groove I is between the pivotal axis of the jaw and the support means and spans an imaginary straight line passing through the pivotal axis of the jaw and the support means. As shown, the pawl D is loaded by a spring L to its jaw engaging position and includes a camming surface K for positively disengaging the jaw B. A locking lever G or a sliding bolt (not shown) prevents inadvertent use of the pawl lever E. In another arrangement, Fig. 2 (not shown) the jaw, in its operative position is closed by a part of the body. In either arrangement the pawl may be operated directly, or indirectly mechanically, electrically, pneumatically or hydraulically.
Patent GB-102684-A (GB)
Title: Safety Railway Wagon Coupling (Non-automatic).
Inventor: PIPER HARRY JOHN
IPC: B61G1/04
Filed: 1916-05-17
Abstract: 102,684. Piper, H. J., and Charter, A. May 17, 1916. Couplings, non-automatic.-Relates to the operation from a transverse rotary shaft of a twolink coupling-chain with a counterweighted outer link. In the coupling operation, the cross-memo ber of the projecting arms B of the shaft first engages beneath an extension of the inner link D beyond its pivotal connexion at E with the outer link C, and then engages the outer link to throw it on to the opposing hook; and, in uncoupling, the cross-member engages beneath a centre-piece F freely mounted on the pivot pin E, whereupon the link C is raised clear of the hook.
Patent GB-734573-A (GB)
Title: Improvements in and relating to railway track circuiting systems
IPC: B61L23/16
Filed: 1951-03-28
Abstract: 734,573. Track relay circuits. SIEMENS & GENERAL ELECTRIC RAILWAY SIGNAL CO., Ltd., and CANDLER, J. E. March 28, 1952 [March 28, 1951], No. 7213/51. Drawings to Specification. Class 105. In a track relay circuit the relay is fed from the secondary windings of a saturable core transformer, the primary of which is connected between the track rails and the normal no-load magnetizing current of the transformer is in the saturation range and of the same order of magnitude as the current leak through the ballast between the rails which will occur during normal weather conditions, whereby the secondary voltage of the transformer applied to the track relay winding, is rendered reasonably independent of variation of the ballast resistance. The track relay may be an A.C. relay or a rectifier fed D.C. relay.
Patent GB-166089-A (GB)
Title: Improvements in combined chain and belt gearing
IPC: F16H7/00
Filed: 1920-05-13
Abstract: 166,089. Cox, F. J. May 13, 1920. Belts; chain-wheels.-In a chain-belt for transmitting drive between a sprocket-wheel e and a V-pulley, pads a of leather &c. are attached to the base as well as to the sides of an ordinary cl:ain b by wires f embedded in the leather as shown in Figs. 2 or 3. The recesses between the teeth of the sprocket-wheel are deepened to admit the leather on the base of the chain.
Patent GB-1215022-A (GB)
Title: Method of magnetic printing
Inventor: RITZERFELD GERHARD
IPC: G03G19/00
Filed: 1968-02-14
Abstract: 1,215,022. Printing processes. G. RITZERFELD. 14 Feb., 1968 [28 Feb., 1967; 2 March, 1967], No. 7303/68. Heading B6C. As an original image is made on one surface of a non-magnetizable sheet printing forme, e.g. by a type bar, by writing or by infra-red thermal transfer, a mirror image is produced on its other or printing side by transfer of magnetizable material from a sheet coated with it, then the transferred material is magnetized so that a magnetizable toner sticks to it and can be printed from it on to, for example, a sheet of paper. The toner may comprise iron powder, ferrite or iron oxide, ink and wax or plastics material. The printing forme 1, which may be a paper sheet, may be placed on cylinder 7 and the magnetizable material 4 of the mirror image, which may contain iron oxide or ferrite, with wax or plastics material, be magnetized by magnet 8 and have toner 11 applied to it by magnet 14, by a scoop band or by a statically chargeable conveyer belt. In the last case the toner is electrostatically chargeable as well as magnetizable, and is transferred magnetically from the belt to the mirror image. Paper sheets 17 are moistened at 21 with a fixing liquid such as alcohol, and are fed between cylinder 7 and roller 22 where the toner is transferred to the sheets 17, with assistance of electromagnets within roller 22, of a magnetic rubber coating on roller 22 or of a stationary eraser magnet within cylinder 7. Ink containing iron oxide or ferrite may be used to make the original image on the forme, and be magnetized together with the mirror image, and the surface of drum 7 may be magnetizable. The toner and the paper sheets 17 may be given static electrical charges of the same polarity before they meet, so as to assist transfer of toner to the surface of the sheets and the printing forme and toner may be given similar static electrical charges before the toner is applied to the mirror image to prevent toner from sticking to the forme as well as to the mirror image. The forme 1 may have on it a coating of tin, or of wax and tin, on the side where the original image is made, and be overlain prior to making of the original image by wax and paper layers. When the original image is made and the wax and paper layers are removed the tin goes with them from the area of the image, so that a negative image in tin remains on the side of the forme opposite the printing side, which carries the above-described mirror image in magnetizable material. The tin coating prevents a static electrical charge from being produced on the printing side of the forme at points where there is no magnetizable material and so prevents uncharged toner from sticking electrostatically to the surface of the printing forme.
Patent GB-213281-A (GB)
Title: Improvements in variometers
IPC: H01F21/00
Filed: 1924-03-22
Abstract: 213,281. Pelletier, G. March 22, 1923, [Convention date]. Addition to 207,825, [Class 37, Electricity, Measuring &c.]. Regulating transformers; condensers. - In a variometer as claimed in the parent Specification, two concentric windings are formed in sections and mounted on the stator so as to lie in different vertical and horizontal planes. Fig. 1 is a section and Fig. 3 a plan of one construction. Two rectangular or other insulating plates 2 are attached to a base-plate 1 and spaced apart by cross-pieces 3. Each of the plates 2 has two series of horizontal notches of unequal depth arranged alternately, for example, one series of notches 4 may be double the depth of the other series 5. Two separate stator windings 6, 7 are wound in these notches, the winding 6 completely filling the notches 5, but the winding 7 only filling the bottom part of the notches 4, so that the windings 6, 7 are completely separated vertically and horizontally. The windings 6, 7 are tapped and brought out to sockets on an insulating plate 10, the number of turns in circuit being variable by means, of plugs 11, 12. The rotor is in the form of a drum comprising two circular insulating plates 13 connected by an insulating sleeve 14 attached to a central shaft 15 passing through the stator. In the plates 13 are formed notches 16 in which are wound the sections 17 forming the movable winding. On the baseboard 1 are arranged sockets 24 for a thermionic valve and clips 21 for the reception of condensers contained in glass tubes 22 with terminal caps 23. The connections of the receiver are shown in Fig. 4. The winding 6 forms the primary inductance variable by fractions and is connected between the aerial 25 and earth 26 in series with a condenser 27, which may be changed at will for one of a different value. The other fixed winding 7 in series with the movable winding 17 forms the secondary winding and is connected in series with the condenser tube 28. The grid 29 of the valve is connected to one end of the winding 7 through a shunted condenser unit 30. The winding 6 may form the reaction coil, in which case the coupling between the coils 6, 7 is arranged so as to be the reverse of that between the coils 7, 17. The variometer may have a magnetic core, for example a tube filled with iron filings or fire iron wire may be inserted in the sleeve 14 of the rotor. The variometer mav serve as a .connecting transformer for a highfrequency amplifier, or for a resonance amplifier. A series of interchangeabe rotors for extending the range of wave-lengths may be provided for by forming the rotors with spindles serving simultaneously as supports and contact-pieces, and engaging sockets fixed on the base-plate 1. Two separate rotors instead of a single one may also be provided.
Patent GB-138214-A (GB)
Title: Improvements in valves and cocks
IPC: F16K41/12
Filed: 1919-03-25
Abstract: 138,214. Anderson, C. E. March 25, 1919. Ball and float valves; lift valves.-Relates to ball and float valves and hand - actuated valves of the type comprising a lift-valve member supported by a flexible diaphragm and operated by a cam. In the present arrangement, the valve e is positively forced to its seating by the cam g, over-pressure being prevented by a casing abutment f<5>. Straining of the diaphragm in the fully open position is prevented by a collar e<3> in conjunction with the abutment f<6> on. the casing cap f. The handle-cam g is shaped at the point g<1>, where the straight upright part joins the curved part, so that in the initial opening movement it causes a momentary extra compression of the valve upon its seating.
Patent GB-1528823-A (GB)
Title: Photographic silver halide emulsion
IPC: G03C1/053
Filed: 1976-02-25
Abstract: 1528823 Polymer-containing silver halide emulsion AGFA GEVAERT A G 25 Feb 1976 [26 Feb 1975] 07403/76 Heading G2C A light-sensitive photographic silver halide emulsion contains a copolymer with recurrent units of the Formula: in which X represents -O- or -NH-, R 1  and R 2  which may be the same or different represent hydrogen or an alkyl group; R 3  represents hydrogen or a -COOH or -COOR 4  group; R 4  represents an alkyl or cyclo-alkyl group. The polymers serve as binders, alone or with gelatin and increase the sensitivity of the emulsion. Suitable comonomers are water-soluble, e.g. containing carboxy, sulpho or phosphonic acid groups. Up to 20% of less-soluble comonomers may be present. The copolymers may be present during the precipitation of the silver halide.
Patent GB-1248686-A (GB)
Title: Ammonium polyphosphate production
IPC: C01B25/28
Filed: 1969-02-11
Abstract: 1,248,686. Ammonium polyphosphate; purifying H 3 P0 4 . SWIFT AGRICULTURAL CHEMICALS CORP. 11 Feb., 1969 [25 March, 1968 (2)], No. 7412/69. Heading C1A. Ammonium polyphosphate containing at least 20% non-orthophosphate and 64-85% nitrogen plus P 2 O 5  is produced by mixing NH 3  and H 3 PO 4  under conditions providing a Reynolds number of at least 5000 at a temperature sufficiently high to keep the product molten. The reactants are preferably ananhydrous NH 3  and wet process H 3 PO 4 . As shown in the Figure, H 3 PO 4  at at least 250‹ F. and 200-400 p.s.i.g. and NH 3  at at least 100‹ F. are pumped to a mixing line 3. More NH 3  may be added by line 2<SP>1</SP>. The pressurized mixture is flashed through orifice 3<SP>1</SP> causing intense mixing in reactor 3<SP>11</SP>, this mixing being increased by vibrating blade 3<SP>111</SP>. Reactor 3<SP>11</SP> is at 350-600‹ F. The product is then fed to vessel 5 which releases steam and increases polyphosphate content. The product may be removed or pumped to a heat exchanger 7 to reduce the temperature to about 400‹ F. before transfer to ammoniator 9 where it is reacted with liquid NH 3  at 350‹ F. to 500‹ F. The product of reactor 9 is pumped to a solidifier/granulator 11. The fines from the final stage screening are recycled to the granulator. The Specification refers to the purification of wet process H 3 PO 4  by addition of KCl, KNO 3  or KH 2 PO 4  to precipitate Fe and Al present as M 3 KH 14 (PO 4 ) 8 .4H 2 O and addition of CaCl 2  or CaCO 3  to precipitate SO 4  present as CaSO 4 .
Patent GB-877381-A (GB)
Title: Improvements in and relating to buildings
Inventor: BEEVER REGINALD
IPC: E04H1/12
Filed: 1957-03-06
Abstract: 877,381. Prefabricated buildings. BEEVER'S SONS Ltd., BENJAMIN. March 4, 1958 [March 6, 1957], No. 7482/57. Class 20(1) A building is constructed from a number of prefabricated units made of wood and comprising two columns 13, 14 supporting a roof truss 15, the lower ends of the columns being bolted to the tops of concrete reinforcing posts 10, 11 secured in foundations 12, the units supporting a roof ridge 21 and panels 22. The columns 13, 14 are made from two members 19 placed side by side so that they straddle the supporting posts which extend above the ground. Concrete slabs 23 are placed along the sides of the building and are joined together by reinforcing rods and concrete beams 27. These slabs may extend for only part of the height of the units or they may fill in the walls completely.
Patent GB-419348-A (GB)
Title: Improvements in and relating to hosiery
IPC: D04B1/26
Filed: 1934-03-09
Abstract: 419,348. Stockings &c. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Textil-Syndikat Ges. ; 1, Glockenstrasse, Chemnitz, Germany.) March 9, 1934, No. 7528. [Class 141.]. Non-laddering stockings and socks are knitted with the loops in some rows longer than in others but of substantially the same tightness. Rows of different length loops may alternate in any sequence. As shown, when a thread has broken, short loops i pull out but at k the pulling out does not free the longer loop k<2> and laddering stops.
Patent GB-159420-A (GB)
Title: Improvements in wigs, transformations and like coverings for the head
IPC: A41G3/00
Filed: 1920-03-15
Abstract: 159,420. Robinson, F., and Ward, J. H. March 15, 1920. Wigs; hair frames; hair switches.-The mount for a wig, transformation, or similar head covering comprises a network A, having strengthening-bands B together with a front ribbon D and back ribbon C, the network being bent over the front ribbon at E so that hair may be attached on both sides of the ribbon D up to the edge without perforating the ribbon itself.
Patent GB-539005-A (GB)
Title: Improvements in and relating to a sealing ring or washer for a dust shield
IPC: B61F15/22
Filed: 1940-04-29
Abstract: 539,005. Sealing rings for dust shields. DUNLOP RUBBER CO., Ltd., and AINSWORTH, G. B. April 29, 1940, No. 7635. [Class 122 (v)] A sealing ring or washer for a dust shield comprises a rubber or similar flexible ring 1 of which the inner periphery or part thereof bears resiliently on an axle 3 whilst the outer periphery is so shaped as to be removably retained by a co-operatively shaped part of the shield 2. Fig. 1 shows the co-operating parts of shallow V-shape, whilst Fig. 4 shows them of flattened half-S shape. The shield 2 may be made of wood, hard rubber, or ebonite, and the inner periphery of the ring 1 may be slit.
Patent GB-381474-A (GB)
Title: Improvements in apparatus for controlling the salinity of the water in steam boilers
IPC: F22D11/00
Filed: 1932-03-15
Abstract: 381,474. Steam boiler blow-down apparatus. UNITED WATER SOFTENERS, Ltd., 51, Chancery Lane, London.-(Permutit Co. ; 440, 4th Avenue, New York, U.S.A.) March 15, 1932, No. 7722. [Classes 64 (i) and 123 (ii).] To control the concentration of salines in a boiler by adjusting the discharge of blow-down, the blow-down is discharged continuously into an open tank 17, the water level in which is maintained constant by a float valve 19, the outflow from the tank being controlled by an adjustable valve 21. The discharge passes through a cooler 13 and a filter 42 in its passage to the tank. A valve 16 cuts off the flow into the tank when the temperature of the blowdown exceeds a predetermined point due to the cessation of feed. A pressure-operated cutoff valve 22 in the outlet pipe 20 of the tank is opened by steam pressure admitted to the valve when the starting valve 31 in the feed-pump steam line 28 is opened. The cooler 13 serves as a feedwater heater. The filter may be arranged on the boiler side instead of on the tank side of the cooler. In a battery of boilers, the blow-down lines pass through a single cooler 13 containing a number of feed-heating coils 14.
Patent GB-1567681-A (GB)
Title: Method of and device for the pneumatic spinning of yarn
IPC: D01H4/02
Filed: 1977-02-24
Abstract: The production of yarn takes place in a non-rotating spinning chamber (1), specifically with the help of airstreams supplied by a system of channels (6) and set in swirling motion. The spinning chamber (1) on the one hand is limited by a cylindrical insert (2) containing a yarn-discharge channel (3) and on the other hand is connected to a vacuum source. The spinning chamber (1) has, on its circumference, air-supply channels (6) and at least one fibre-supply channel (7). In order to increase the circumferential speed on the chamber walls and consequently accelerate the spinning operation, an element (8) covering the core of the suction cross-section of the suction pipe (5) is arranged within the spinning chamber (1) underneath the zone receiving the ring (10) consisting of swirling fibres. <IMAGE>
Patent GB-378820-A (GB)
Title: Improvements relating to padded rollers for ironing machines
IPC: D06F83/00
Filed: 1932-03-16
Abstract: 378,820. Ironing-machines : rollers. TULLIS, Ltd., D. & J., and JACK, W., Kilbowie Iron Works, Clydebank. March 16, 1932, No. 7775. [Classes 42 (ii) and 138 (ii).] The periphery of the roller 1 of an ironing- machine is provided with annular grooves or with a helical groove or with a pair or pairs of oppositely-directed helical grooves in which padding units are accommodated. The padding uni s comprise a metallic carrier strip 4 on which a plurality of springs wound in pairs are threaded. The connecting convolutions 7 of the springs are disposed beneath the strip and the adjoining convolutions 8 are above the strip. A sleeve 9 of stockinette or similar material surrounds the padding. Specification 374,749 is referred to.
Patent GB-804913-A (GB)
Title: Improvements in rotary stapling mechanism
Inventor: TURRALL GEORGE
IPC: B27F7/23
Filed: 1954-03-17
Abstract: 804,913. Stapling. CRABTREE & SONS, Ltd., R. W. March 17, 1955 [March 17, 1954; Aug. 16, 1954], Nos. 7777/54 and 23784/54. Class 89(3) In a rotary stapling machine comprising a cylinder 17 carrying a punch 29 which forces a length of wire into a stapleforming recess 27 in a die cylinder 16 from which it is subsequently ejected and is clenched by cooperation with an anvil on a cylinder 7, and in which the staple is ejected by a diametrically slidable plunger 28 which is moved to and fro by the punch, (a) movement of the plunger 28 is cushioned by rubber rings 34, 35 arranged between a flange 31 and stops 32, 33 which may be faced with fabric reinforced plastic washers 36, and/or (b) the punch 29 is mounted by limited movement outwards of the cylinder 17 to compensate for thickness &c. variations of the work to be stapled. The striker end 24 of the plunger 28 may be retracted by a spring 37. Specifications 740,079 and 743,068 are referred to.
Patent GB-753745-A (GB)
Title: An improved plate for use in preventing splashing of liquid in electric accumulators
IPC: H01M10/02
Filed: 1954-03-17
Abstract: 753,745. Batteries. LUCAS (NEW ZEALAND), Ltd., J. March 17, 1954 [March 19, 1953], No. 7789/54. Class 53. A splash-plate 1 to prevent electrolyte spray from reaching the gas vent of an accumulator rests on the electrode plates with its ends beneath the plate straps 4 as shown in Fig. 7. To prevent lateral movement the splash-plate is provided with curved ribs 5 which engage the straps 4. The plate is also provided with strengthening ribs 6, 7.