baber/WOPTO huggingface dataset:
Patent GB-651863-A (GB)
Title: Improvements in or relating to automatic guns and to safety-devices therefor
IPC: F41A17/32
Filed: 1947-12-31
Abstract: 651,863. Automatic guns. ZBROJOVKA BRNO, NARODNI PODNIK. Dec. 31, 1947, No. 34989. Convention date, Aug. 23, 1941. [Class 119] Relates to trigger safety devices as described in Specification 616,326 having a transversely slidable knob 15 having a part 14 for locking the trigger 10 by engaging the trigger pivot. According to the present invention, a detent lever 16 has a projection 18 for locking the breech bolt (not shown), in closed position when the knob 15 is operated to lock the trigger. In the form shown, the detent-lever pivoted at 17 and controlled by a spring 19 has a finger 9 engaging a shallow notch 22 on the knob when the knob is pressed inwardly to lock the trigger and breech block, the finger 9 engaging a deeper notcl 21 when the knob is with drawn to free the trigger and the projection 18 is withdrawn to release the breech block.
Patent GB-971399-A (GB)
Title: Improvements in or relating to rotary multi-colour printing machinery
IPC: B41F33/08
Filed: 1962-09-14
Abstract: 971,399. Rotary printing machines. SCHNELLPRESSENFABRIK A. G. HEIDELBERG. Sept. 14. 1962 [May 2, 1962], No. 35074/62. Heading B6C. A rotary multi-colour printing machine having a plurality of printing units arranged in series with the cylinder trips of the units inter-connected is characterized by the feature that for each successive printing unit a reduction gearing for delaying the tripping of a cylinder on or off is provided, the reduction ratio of the gearing corresponding to the number of the sheets which are on the way from an impression cylinder of one printing unit to the impression cylinder of the next unit. When a lever 1 is moved in a direction to trip the plate cylinder into co-operation with the impression cylinder of a first unit, rods 2 and 4, lever 3 and a pawl 5 cause, via a roller lever 8 and a cam 7, a pawl lever 9 to rotate and move a switching rod mechanism 10. The rod 10 rotates the eccentric bushes 14 of the plate cylinder by means of toothed segments 11 and 12 and a connecting rod 13. The simultaneous rotation of a toothed segment 16 displaces a rod 29 and a lever 30 to the right, compresses a spring 32, and causes a resilient roller 27 to engage the outer surface of a cam or control disc 25. The movement of the lever 30, via a cam and lever linkage, couples a single tooth clutch 38 to a gea-rwheel 39 which engages a gear-wheel 40 rigidly connected to a second cam or control disc 41. The disc 41 is rotated clockwise with a reduction ratio of 1 : 4, there being four sheets travelling on the chain conveyer between the printing units. After one revolution of the disc 41 four sheets have travelled between the units and a roller 42 drops into a slot in the disc 41 under the action of the spring 32 and a guide 43 is displaced to the right. The eccentric bushes 57 of the plate cylinder of the second unit are thus rotated so that the cylinder co-operates with its impression roller by means including a switching rod mechanism 53 similar to that which rotates the bushes of the first unit. The drive of the disc 41 is disengaged by a cam 58 and the disc is braked by pawls 60 and 61 and locked. Clutch pins 15 and 62 may be removed if the plate cylinders are not required to co-operate with the impression cylinders. The first plate cylinder is tripped off when the control disc 25 is actuated by the clutch 22. When the apparatus is not being used for direct letterpress but for indirect relief or lithographic offset printing the tripping rods may act on the eccentric bearings of the impression cylinders.
Patent GB-1261475-A (GB)
Title: Mattress
IPC: A47C20/02
Filed: 1970-07-20
Abstract: 1,261,475. Mattresses. PROFILIA-WERKE PRECKEL & WAELTERMANN G.m.b.H. & CO. K.G. July 20, 1970 [July 23, 1969], No.35086/70. Heading A4M. A mattress with a spring interior 12 covered by a layer 131 of foamed plastics includes two or more spaced tubes 14, 14<SP>1</SP> extending over the width of the mattress, disposed between the spring interior 12 and the foam layer 131 and filled with air or water. Each tube 14, 14<SP>1</SP> is filled or emptied independently of the other. Bellows 17 and deflating valves 18 are associated with each tube 14, 14<SP>1</SP>, the bellows 17 being embedded in the mattress. The tubes 14, 14<SP>1</SP> are supported on a rigid plate 16.
Patent GB-800374-A (GB)
Title: Improvements relating to flexible tubing
IPC: F16L11/115
Filed: 1955-03-08
Abstract: 800,374. Making corrugated hose. HOOVER, Ltd. March 8, 1955 [March 10, 1954; Oct. 4, 1954], No. 35197/56. Divided out of 800,371 [Group XXVIII]. Class 87(2). [Also in Group XXVIII] In a method of making a hose comprising a corrugated tube 10 of thermoplastic material and a helical reinforcing coil of steel or aluminium wire 12 coated with thermoplastic material 13, the coil is extended longitudinally and a tube is fitted within or over the coil when so extended, after which a fluid pressure difference is applied between the inside and outside of the tube to cause the latter to bulge between the convolutions of the coil while allowing the coil to contract longitudinally, and finally the assembly is heat-treated to cause the tube to take a permanent set in the deeply corrugated state thereof. As shown, one end of the tube 10 is closed by a clamp 24 and the other end is clamped to a rigid pipe 21 in which the mandrel 20 with the extended coil secured thereon is placed. The tube 10 is inflated by air under pressure admitted through a hose 22 and the pipe is tilted so that the mandrel slides into the inflated part of the tube whereupon the air pressure is released to allow the tube to contract about the coil ; the tube is cut off at the clamp 24. The respective ends of the tube are clamped to a pipe 27, Fig. 6, and to a movable carriage 28. Suction is applied through the pipe and simultaneously the tube and coil are heated to a temperature of 180F., the suction causing the tube and coil to collapse to the position shown. The hose, while still warm, is stretched to break any adhesion which may have occurred between adjacent corrugations. In the case of a hose of the form shown in Fig. 2, the assembly of tube and coil is placed in a pipe 30, Fig. 7, the tube being clamped to heads 31, 32. Air under pressure supplied through the head 31 causes the wall of the tube to be forced outwardly between the convolutions of the coil, and warm air or steam admitted through the head 32 causes the tube to take up the position shown since the coil was initially pre-stressed to assume a closed position. Specifications 673,043, 800,372 and 800,373 [all in Group XXVIII] also are referred to.
Patent GB-1277646-A (GB)
Title: Improvements in or relating to profile inspecting apparatus and methods
Inventor: ENGLISH FRANCIS GUY SYDENHAM
IPC: G01B5/207
Filed: 1969-07-12
Abstract: 1277646 Determining and checking profiles TEMCO TOOLS Ltd 25 June 1970 [12 July 1969] 35203/69 Heading G1M A frame 12, Fig 2, adjustably mounted on tubes 9, 4 has bosses 16, 17, 18 supporting vertical rods 14, 15 on which may slide bosses 19-22 of a vertically movable frame 13 normally maintained in its highest position by springs 27, 28 and comprising a tubular member 30 carrying a profile transferring device of feeler needles 32, see also Fig.1. The tube 30 also carries a tray 29 which houses a fluorescent tube and supports a translucent screen 33, Fig.5 on angle brackets. The needles 32 are lowered on to the work piece 70, Fig.1, by means of a Bowden cable mechanism 71, 72 pulling down on a member 74 secured to the frame 13, and downward movement of the screen 33 is arrested and accurately located with respect to the bed 1 by stops 66, 68 shortly before the needles contact. Thus, any scale or master profile drawn on the screen will be accurately located with respect to the workpiece, and since the profile is transferred to the upper ends of the needles, Fig.1, the actual profile can be compared with that down on the illuminated screen. A checking dial gauge 80 is provided in Fig.7, and Fig.8 (not shown) a rod 90 supports four probes 100 which may be moved by a handle 103 to explore the workpiece 106. A checking scale 111 is provided on the screen 33 and can be viewed through an eyepiece 104 on the other end of the rod 90.
Patent GB-410238-A (GB)
Title: Radio-electric musical instrument
IPC: G10H1/00
Filed: 1932-12-13
Abstract: 410,238. Electrical musical instruments. MUSIQUE ELECTRO-SYNTHETIQUE, 100, Rue du Moulin Fagot, Turcoing, Nord, France. Dec. 13, 1932, No. 35353. Convention date, Jan. 28. [Class 88 (ii).] Relates to electrical musical instruments wherein oscillations from valves L, Fig. 2, producing the notes are passed through the connected primaries a, a<1> ... of a number of transformers t, t<1> ... , the secondaries of the transformers being connected respectively through filters #, #1 ; #<1>, #1<SP>1>; ... and amplifiers A, A<1> ... , each to its own loud-speaker, D, D<1> .... , so that each loud-speaker may reproduce in a different tone, and consists in arrangements of short-circuiting switches for controlling the loud-speakers individually. In Fig. 4 the short-circuiting switch p is arranged after the amplifier A. In Fig. 5, the switch l, actuated by an electromagnet E, shortcircuits the primary a, at the same time deshort-circuiting an adjustable compensating resistance r. Choke coils c, c<1> ... Fig. 2 are preferably interposed between a source of high tension and the plates of the valves, and the chokes are on their plate sides connected to the primaries a ... through condensers g, g<1> ... , or through impedances (Fig. 3, not shown). Or the leads from the valves L and chokes c ... to the high tension may include the primaries of a common transformer whose single secondary is connected to the primaries a (Fig. 1, not shown). Specifications 359,967, 393,821, and 393,822 are referred to. The Specification as open to inspection under Sect. 91 describes also : (1) switches shortcircuiting the secondaries or the primaries of the transformers t ... directly ; these however vary the impedance. (2) Instruments with the same valves serving a plurality of keyboards, as described in Specification 401,451. This subject-matter does not appear in the Specification as accepted.
Patent GB-1514384-A (GB)
Title: Lawn edging
IPC: A01G9/28
Filed: 1976-08-26
Abstract: 1514384 Lawn edging L KAMB 26 Aug 1976 [26 Aug 1975] 35430/76 Heading A1E Lawn edging comprises a strip 1 of metal or plastics having a base flange 3 perpendicular thereto and directed inwardly towards the lawn. For straight sections the strip has a top flange 2 directed away from the lawn at an angle of 30‹-70‹ to the horizontal. For edging corners the top and base flanges are formed with triangular notches permitting the edging to be bent either inwardly or outwardly. For curved lawn edges the top flange is omitted and the base flange has a plurality of spaced notches. The edging is provided in sections, the strip and base flange being provided at one end with connecting members 5, 6 forming slots 7 into which the abutting end of the next section may be slid. The strip 1 is formed with eyelets 9 for support rods 10 which are driven into the soil to anchor the edging.
Patent GB-1395928-A (GB)
Title: Pipe coupling apparatus
IPC: F16L37/12
Filed: 1972-07-28
Abstract: 1395928 Pipe couplings EMCO WHEATON UK Ltd 27 July 1973 [28 July 1972] 35505/72 Heading F2G  Latches 7, rotated about their pivots 8 by hydraulic rams 13, are locked in the engaged position by wedges 15, simultaneously moved by rams 16. To effect unlatching, pressure is applied through line 23 to move spool valve 20 downwardly, so that the end of extension 21 drops into recess 24. This results in operating pressure being applied through line 25 to further extend rams 13, so as to relieve the wedges 15 of the pressure of ends 18. As soon as the wedges are freed, the operating pressure in line 26 retracts them and, as extension 21 rides up out of recess 24, the direction of liquid flow in line 25 is reversed by valve 20 and the latches 7 are swung clear. An adapter ring (31, Figs. 3-6, not shown), has means (34, 35) for securing it to flange 3.
Patent GB-1059913-A (GB)
Title: A method of and apparatus for melting synthetic linear high polymers, such as polyamides, polyesters and the like, for melt spinning
Inventor: KEMNITZ WALTER
IPC: D01D1/04
Filed: 1963-09-10
Abstract: 1,059,913. Melt spinning apparatus. CHEMIEFASERWERK SCHWARZA " WILHELM PIECK " VEB. Sept. 10, 1963, No. 35705/63. Heading B5B. In a spinning head for melt spinning a melting unit comprises an upper chamber 1 (see the drawing) into which is fed in particulate form the material to be melt spun. The external wall 2 of this chamber is a metal body which can be rendered gas-tight with the aid of a flange 4. An inert gas is passed through the chamber by means of pipes 2 and 3. A melting element 6, centred by a ring 9 is detachably connected through gaskets 5 with the flange 4 and a flange 8 provided on a metal casing 15 enclosing a lower chamber or sump 17. The melt flowing down from the element 6 is received in the sump 17 which is provided with a level regulating device 11 and an outlet duct 13 leading to a spinning pump or other conveying means. An inert gas is separately passed through the sump 17 by means of pipes 14 and 16 passing through the flange 8 of the casing 15 at a pressure which is the same as or less than that of the chamber 1. The melting element 6 is provided with narrow vertical ducts 7 so that when the molten filament forming material during the spinning operation flows from the chamber 1 into the chamber 17 no gas can pass from one chamber into the other and the atmospheres in the chambers 1 and 17 are kept separate.
Patent GB-776568-A (GB)
Title: Improvements in the activation of ferroelectric ceramics
IPC: C04B35/462
Filed: 1954-12-09
Abstract: 776,568. Ferroelectric materials. AMERICAN LAVA CORPORATION. Dec. 9, 1954 [Dec. 11, 1953], No. 35714/54. Class 37. [Also in Group XL (b)] A method of activating a ferroelectric ceramic comprises (i) applying an activating current to the ceramic with the ceramic heated to not more than 10 C. above its transition temperature and (ii) continuing to supply the activating current whilst allowing the ceramic to cool. The term " activated " means treatment to produce increased dielectric constant. The term " transition temperature " means the temperature at which the first crystal transformation above room temperature is effected. The current is D.C. and is preferably that which produces a change of at least 15 per cent and more preferably the maximum change in dielectric constant. The current may be maintained. substantially constant while the ceramic cools to at least 65 C. below its transition temperature. The maximum change in dielectric constant for a particular ceramic is found by using sample pieces of the material and subjecting each piece to activation until that current is found which produces the largest. change in dielectric constant.  Detailed embodiment.-A ceramic cylinder 10, shown in Fig. 1, has silver electrode coatings 11, 12 and leads 13,14. The ceramic material comprises 96 per cent barium titanate and 4 per cent lead titanate. A number of such cylinders are immersed in chlorinated diphenyl and slowly heated to 10 C. above the transition temperature (120 C). A D.C. is then applied to leads 13, 14 and increased gradually until it reaches 14 micro-amperes per square inch of electrode surface. After a short time the temperature is lowered slowly and the current maintained constant by increasing the applied voltage as the cylinders cool to about 65 C. below the transition temperature. After complete cooling the diphenyl is removed by dipping the cylinders in acetone. The activating current value of 14 micro-amperes is that which produces the greatest change in dielectric constant for the given ceramic. This value is found by treating groups of cylinders using different current values for each group and measuring the capacity values and compiling results. Fig. 1 has application as a condenser or piezo-electric device. Ceramic materials.-The invention may be performed using the following ferro-electric ceramics : titanates of alkali metals and alkaline earth metals; tungstates, bismuth oxides, strontium cerate, boron phosphate, arsenic sesquioxide, lithium ferrite, lithium sulphate and antimony iodide; also titanate compositions comprising selectively as additives or minor proportions the stannates and zirconates of barium, lead and calcium and the titanates of calcium, strontium and lead.
Patent GB-874215-A (GB)
Title: Improvements in electric overvoltage discharge device
IPC: H01T4/12
Filed: 1959-10-22
Abstract: 874,215. Spark apparatus. GENERAL ELECTRIC CO. Oct. 22, 1959 [Oct. 24, 1958], No. 35809/59. Class 39(1). A protective spark gap for an electrical circuit comprises two electrodes 11, 14 presenting curved surfaces 12, 13 towards each other, has an inert ionizable gas filling of e.g. argon or helium at a pressure of 0.01 to 2500 mm. Hg., and has a source of radioactivity for ionizing the gas at a level below that obtaining upon breakdown of the gap. The source of radioactivity may be an annular strip 23 of Nickel-63, Nickel-63 and Cobalt-60 or Nickel-63 plated on copper, or the radioactivity may be provided by the addition to the filling of a radioactive gas e.g. Krypton-85. The Krypton-85 is also stated to be effective in inhibiting anchoring of the arc. The upper electrode 11 is supported by a rod 8 passing through an insulator 3. The cap 5 is bonded to the insulator by means of a ceramic-tometal bond 6 and the cap 5 places the seal in compression. The similar seal 17 between the insulator and the casing 15 is also maintained in a state of compression. The exhaust and gas introducing tube 20 has a protective cap 21 containing a quantity of soft solder.
Patent GB-349539-A (GB)
Title: Improvements in and relating to fuel injection devices for internal combustion engines with fluid-controlled fuel needles
IPC: F02M61/10
Filed: 1929-11-22
Abstract: 349,539. Fuel injectors. MOTORENFABRIK DEUTZ AKT.-GES., Deutz, Cologne, Germany. Nov. 22, 1929, No. 35813. Convention date, Nov. 24, 1928. Void [Published under Sect. 91 of the Acts]. [Class 7 (iii).] Leakage is prevented at the outer end of a needle valve b by a seating s formed at the inner end of a gland nut el which serves as a guide for a sliding member b<1> through which the pressure of a spring is transmitted to the needle valve. The lift of the valve may be varied by inserting washers f of different thickness between the gland nut e<1> and the valve body. In a modified construction the portions b, bl of the valve are made in one piece, a flat shoulder then coacting with a flat inner face on the member e<1>.
Patent GB-1307728-A (GB)
Title: Process for the decomposition of adducts of urea and n-paraffins
IPC: C07C7/152
Filed: 1970-07-24
Abstract: 1307728 Dispersing measured quantities of granular material EDELEANU GmbH 24 July 1970 [11 Sept 1969] 36028/70 Heading B8N [Also in Division C5] The charging valves illustrated in Figs. 1 and 2, each comprising a rotor 1 and a housing 3, are used to meter a mixture of solid urea-nparaffin adducts and liquid into a decomposition zone (see Divisions C4-C5). The rotor 1 and the inner surfaces 2 of the housing 3 can be coated with a polyfluorohydrocarbon or with a polyfluorocarbon such as polytetrafluoroethylene.
Patent GB-771676-A (GB)
Title: A combined industrial truck and road vehicle
Inventor: HOLMES EDWARD PERCY
IPC: B66F9/075
Filed: 1954-02-28
Abstract: 771,676. Motor vehicles. ELECTROHYDRAULICS, Ltd. May 26, 1955 [Feb. 28, 1954], No. 36082/53. Classes 79(2) and 79(5). A fork lift truck or like vehicle is provided with normal forward and reverse change speed gear 11 and a transfer gear box 13 comprising two sets of gears, one set giving a fast drive in the direction A for use, for example, on a highway, and the other set giving a slow drive in the direction B. As shown the invention is applied to a fork lift truck having load handling mechanism 26. The truck has driving and steering wheels 22, 23 driven from the engine 9 through a clutch 10, the gear 11, a shaft 12, the gear box 13 and shafts 14, 16. The gear box 13 comprises an input shaft 49 connectable by a sleeve 74 to either of gears 82, 86, the gear 82 meshing with a gear 102 on a shaft 97 and the gear 86 meshing with an idler 106 in turn meshing with a gear 104 on the shaft 97. The gear 102 also meshes with a gear 135 on a shaft 107 connected to the shaft 14, the shaft 107 being connectible by a sleeve 142 with a shaft 108 connected to the shaft 16. By movements of the sleeves 74, 142 the wheels 22 alone or together with the wheels 23 can be driven either in the direction A or B. To facilitate forward and reverse drives the driver's seat 3 is rotatable on a pedestal 4 and steering wheels 7, 8 and duplicated engine brake controls are provided. Each steering wheel is associated with a gear box 168, the gear boxes being connected to a common worm and segment assembly 172 having an output shaft 173. The shaft 173 carries drop arms 174, 175, a rod 176 interconnecting the arm 174 and the wheels 23, and a rod 178 interconnecting the arm 175 and the wheels 22. The rod 178 engages a slot 177 in the arm 175 so that it may be positioned at the top or bottom thereof and in the top position rotation of the shaft 173 does not displace the rod 178 to steer the wheels 22. The rod 178 can be moved in the slot 177 mechanically, electrically or hydraulically or it may be controlled by rotation of the seat 3 to prevent four-wheel steering at a high speed. Rotation of the seat 3 may control movement of the sleeves 74, 142 in the gear box 13, a separate electric switch being operated in the forward and reverse positions of the seat 3 and each switch being in circuit with a pair of solenoids associated with hand levers operating the sleeves 74, 142. Manual control of the hand levers may over-ride the solenoid control.
Patent GB-394693-A (GB)
Title: Improvements in or relating to the vulcanisation of natural rubber and artificial rubber-like masses
IPC: C08K5/37
Filed: 1931-12-31
Abstract: Imidazoles and perimidines of the constitution <FORM:0394693/IV/1> wherein R indicates a substituted or unsubstituted arylene residue and R<1> indicates hydrogen or a hydrocarbon radicle (substituted or not), are employed as anti-agers for natural rubber and artificial rubber-like masses.  These compounds are obtained by the action of carbon bisulphide on o-arylenediamines, naphthylene peridiamines or o-semidines.  The following compounds are mentioned: 2-mercaptobenzimidazol, 3 : 6-dimethyl - 2 - mercaptobenzimidazol, 3 - ethyl - 6 - methyl - 2 - mercaptobenzimidazol, 3 - paratolyl-6-methyl-2-mercapto-benzimidazol, 3-phenyl-5 - ethoxy - 7 - methyl - 2 - mercaptobenzimidazol, 3 - phenyl - 5- ethoxy-2-mercaptobenzimidazol, 2 mercaptoperimidine.  The disulphides are obtained by oxidation of the monosulphides with hydrogen peroxide.ALSO:The ageing of natural rubber and artificial rubber-like masses is retarded by the addition to the mix of compounds of the constitution:-  <FORM:0394693/V/1> in which R indicates a substituted or unsubstituted arylene radical, and R1 indicates hydrogen or a hydrocarbon radical, substituted or not.  These compounds are obtained by the action of carbon bisulphide on ortho-arylene-diamines, naphthalene peridiamines or ortho semidines. The preparation is carried out as described in Gazetta Chimica Italiana, vol. 23, page 295 and Annalen der Chemie, vol. 365, page 141.  Other references are given in the Specification to the preparation of the following compounds: 2-mercaptobenzimidazol, 3 : 6-dimethyl-2-mercapto-benzimidazol, 3-ethyl-6-methyl-2-mercapto-benzimidazol, 3-paratolyl-6-methyl-2-mercaptobenzimidazol, 3 - phenyl - 5 - ethoxy - 7-methyl - 2 - mercaptobenzimidazol, 3 - phenyl-5-ethoxy-2-mercaptobenzimidazol, 2-mercaptoperimidine. The disulphides are obtainable by oxidation of the monosulphides with hydrogen peroxide.  Examples are given showing the effect of the addition of these compounds to rubber mixes.