baber/WOPTO huggingface dataset:
Patent GB-301858-A (GB)
Title: Improvements in or relating to pistons for internal combustion engines
IPC: F02B75/00
Filed: 1928-05-12
Abstract: 301,858. Jorgensen, O. E. Dec. 7, 1927, [Convention date]. Pistons; cooling; attaching to rod; pistonrods.-In a piston comprising two heads 11, 12 secured to the enlarged end of the piston-rod, longitudinal passages 24 are formed in the enlarged end for the distribution of cooling liquid, which is supplied through the bore of the piston-rod and a return pipe 21. The bore is of two diameters connected by a rounded shoulder 3, and the liner 2 is correspondingly formed. The bore opens at the upper end into a combined header and air chamber 20, to which the return pipe 21 is secured. Bolts 22 secure the header 20 and the head 11, while the head 12 is secured by bolts 15. The passages 24, which are provided with protective liners, make communication between the header 20 and the head 11, and between the head 11 and the head 12. The liner 2 is secured at the lower end to a plate 10 and is free to expand upwardly through a packing 18. The pipe 21 is free to expand downwardly, being a sliding fit in a socket in a header 30 secured to the lower end of the piston-rod. The space between the two piston heads is enclosed by a sleeve 27 formed in halves. In a modification the header 60, Fig. 6, is formed integral with the upper piston head 47 and the two heads are secured to flanges on the piston-rod by hollow bolts 52, 57. The bolts are arranged in line with compressible copper or other sleeves 61 between them to form through passages, which alternately make communication between the header 60 and the head 46 and between the head 46 and the head 47. Specification 301,857 is referred to.
Patent GB-543782-A (GB)
Title: Improvements in or relating to safety razors
IPC: B26B21/18
Filed: 1940-09-11
Abstract: 543,782. Safetyrazors. BEVIS, J. E. Sept. 11, 1940. No. 14066. [Class 30] The clamping plate for use with a standard guard for double-edged blades has one edge concave to allow the blade to lift sufficiently from the guard to form an open razor. The handle is hollow and slit from end to end for flexibility and resilience. Specification 543,801 is referred to.
Patent GB-876879-A (GB)
Title: Improvements relating to belting
Inventor: HENSON DOUGLAS RONALD
IPC: B29D29/00
Filed: 1957-05-03
Abstract: 876,879. Belt fastenings. DUNLOP RUBBER CO. Ltd. April 2, 1958 [May 3, 1957], No. 14112/57. Class 80 (1). A joint between two ends of a belt 1 is formed by intermeshing loops 2, 8, 9 coupled by a rod 32. The loops are formed by cutting shaped and spaced fingers 5 in a duel-drawn nylon or polyester resin film reinforcement 3 of a rubber or thermoplastic belt and folding them back to form the loops into which are inserted rigid sleeves 10 of metal or plastic. Alternatively separate fingers forming the loops may be bonded on to the reinforcing film 3 which fingers may be of thin sheet steel to obviate the need for inserted sleeves. Specification 841,480 is referred to. Reference has been directed by the Comptroller to Specification 708,461.
Patent GB-683559-A (GB)
Title: Improvements in supports for resistance heating elements in electrically-heated furnaces
Inventor: HYDE JOHN DEREK
IPC: H05B3/66
Filed: 1950-06-06
Abstract: 683,559. Electric furnaces. McDONALD FURNACES, Ltd. June 1, 1951 [June 6, 1950], No. 14134/50. Class 39(iii) A heating resistance 10 usually of sinuous strip form is supported by the lower ends of brackets attached to the furnace roof, the stem 11 of the bracket extending down from the roof to terminate in a horizontal part 18 of U form engaging beneath the resistance 10, the upper limb 19 of the U being offset from the plane containing the stem and the lower limb 18 of the U loop. The free end of the upper limb 19 of the U loop is spaced from the stem to allow entry of the resistance 10 by a gap of less width than that of the resistance strip. The limbs 18, 19 may be parallel and disposed in an inclined plane, or the limb 19 may be bent out as in Fig. 4. The brackets have heads 12 pushed up through the wider parts 15 of vertical slots of keyhole section in the roof to rest in seats 14 above the narrower slot portions 16. The stem 11 of the bracket may be cranked to bring the centre of gravity under the head 12.
Patent GB-360884-A (GB)
Title: Improvements in and relating to electric cables
IPC: H01B7/28
Filed: 1930-05-08
Abstract: 360,884. Cables. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitõts-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) May 8, 1930, No. 14206. Convention date, May 8, 1929. Void [Published under Sect. 91 of the Acts]. [Class 36.] To avoid corrosion of a metallic-sheathed cable, a covering of non-vulcanized rubber, preferably rich in paraffin-like, bituminous or waxy materials, is applied to the metallic sheath. The covering may be sprayed on the metallic sheath or may be formed by a helically-applied strip of the rubber. In the construction shown, a cable comprises conductors a, separately insulated with rubber coatings b and rubberized bands c, and surrounded by a common rubber covering d enclosed within a metallic sheath e. A non-vulcanized rubber sheath f protected by a braided or wound covering g of impregnated fibrous material completes the cable. A neutral wire h may be laid between the rubber covering d and the metallic sheath e.
Patent GB-276756-A (GB)
Title: Improvements in automatically oscillating electric fans
IPC: F04D25/10
Filed: 1926-06-07
Abstract: 276,756. Veritys, Ltd., Lister, J. F., and Smallwood, H. W. June 7, 1926. Mounting; driving-gear.-An oscillating fan comprises a link r connected by a ball-joint i<2> to a rigid side extension i of a fixed bifurcated frame f within which rocks a ring e carrying the combined motor casing and fan body that are mounted on pivots a<2>, a<3>, the slow motion shaft j which provides the oscillating movement being connected at one end to the link r projecting rearwardly from the motor casing and being arranged parallel with the fan wheel shaft c. The link r is formed by a plate twisted at rightangles at one end and is formed with a hole at the other end to engage the ball i<2>, as shown.. Specification 245,264 is referred to.
Patent GB-1263581-A (GB)
Title: ALKYLTHIO DIAMINO DERIVATIVES OF s-TRIAZINES THEIR PREPARATION AND USE
IPC: C07D251/52
Filed: 1969-03-19
Abstract: 1,263,581. 2-Alkylthio-4,6-diamino-s-triazines. AGRIPAT S.A. 19 March, 1969 [20 March, 1968], No. 14331/69. Heading C2C. Novel s-triazines of the formula  wherein R 1  represents a methyl, ethyl, isopropyl, 1-methyl-cyclopropyl, sec-butyl, isobutyl, tert.-butyl, isopentyl, 2-methoxyethyl, 3- methoxypropyl, 1-cyanoethyl, 1-cyanopropyl, 2- cyanoprop-(2)-yl, 2-cyanobut-(2)-yl or 3-cyanopent(3)-yl radical, R 2  represents a methyl or ethyl radical and n is 0 or 1, are prepared (i) by reacting a chlorotriazine of the formula with thiourea and dimethyl sulphate or diethy sulphate in the presence of a base, (ii) by reacting the above chlorotriazine with methyl or ethyl mercaptan in the presence of an acidbinding agent and an inert solvent or diluent or (iii) by reacting cyanuric chloride with a cyclopropylamine or an amine NH 2 R 1 , reacting the intermediate monoaminodichlorotriazine with methyl or ethyl mercaptan as in (ii) or with an alkali metal salt of the mercaptan and then reacting the aminoalkylthiochlorotriazine product with which ever amine was omitted in the first reaction step. The novel triazines possess herbicidal properties and are used in conventional forms for the selective pre- and post-emergence control of weeds.
Patent GB-217036-A (GB)
Title: An improved impression-wheel typewriter
IPC: B41J1/32
Filed: 1923-05-31
Abstract: 217,036. Muchajer, P., and Gundka- Werk Vereinigte Blechspielwarenfabrieken Ges. May 31, 1923. Index type-wheel machines; case-shift mechanism.-Relates to machines of the kind in which the type-wheel is rotated and tilted for characterselection and impression by means of a geared index-lever and is movable axially for case-shift, and comprises the provision of a shaft carrying arms or forks having pin-and-slot or like connection to the shift-key levers, and the typewheel shaft. The type-wheel 23, Fig. 2, is secured to a shaft 14 passing through a sleeve 14<a> on a plate 11 mounted bv means of ears 13 to rock on a shaft 12. An index-lever 8 engaging the plate 11 is pivoted on an arm 3 which is pivoted to a bracket 2 and is provided with a fork 19 engaging a pin 18 on a sector 16 which is pivoted on the plate, 11 and gears with a pinion 15 feathered to the shaft 14. The type-wheel is rotated by moving laterally the index-lever to a position shown by means of a pointer 6 on the plate 3, and a scale on the framework 1. The type wheel is tilted by depressing the index-lever, the framework having a comb 69 for engaging the index-lever when depressed. The shaft 12 is provided with arms 36, 37, having pin-and-slot or like connection to a shift-key lever 29 and the shaft 14 respectively. The lever 29 carries two shift-keys 32, 33, for raising the type-wheel one or two steps respectively, the key 32 'having pin- and-slot engagement with the lever and being associated with a stop. The type-wheel rests on a disc 21 on the shaft 14 and is coupled by means of a projection 22, a spring 24 normally preventing detachment of the type-wheel. Letter-spacing mechanism.-A pawl 40, Fig. 3, co-operating with a rack on the carriage 45, is carried by a lever 39 which is pivoted on the framework 1, and co-operates with a space-key lever 28 and an abutment 42' on a rod 42 pivoted to the rocking plate 11. On depressing the space-key lever or the index-lever, the lever 39 is rocked, and the pawl is released from the rack by engagement of a bracket 44 with a lug 43 on the pawl. On releasing the space-key lever or the index-lever, a spring 46 returns the lever 39, a spring 41 moves the pawl into engagement with the rack. and letter-spacing is effected. A spring detent 47 retains the carriage when the pawl 40 is released. Platen-roller detents.-The platen 60 is formed with pits 59, Fig. 2, for engaging a projection on a spring detent 57 secured to the carriage 45. Carriage-stops.-A stop 48, Fig. 3, adapted to engage the bracket 44, is adjustable along a slot 54 in the carriage 45, and is secured by a screw.
Patent GB-911709-A (GB)
Title: Improvements in and relating to hydraulic cylinders
Inventor: SENIOR WILLIAM JAMES
IPC: F15B15/14
Filed: 1960-04-25
Abstract: 911,709. Hydraulic apparatus; valves. AUTOMOTIVE PRODUCTS CO. Ltd. April 25, 1961 [April 25, 1960], No. 14462/60. Classes 69 (2) and 135. An hydraulic ram 4 and cylinder 3 apparatus which may operate a valve of the sliding gatetype comprises differential pistons 1, 2 associated with the ram and moved during inward movement of the ram by predetermined amounts, the relative areas of the pistons being such that a greater effort is applied to the ram during a predetermined initial portion of the inward movement of the ram than during the remainder of the stroke, outward movement of the ram being effected by causing the hydraulic fluid to act first differentially on one of the pistons and finally on one side only of the piston. The piston 1 is disposed in a largediameter portion 5 of the cylinder and is axially-movable relative to the ram on which is secured the small-diameter piston 2. The portion 5 of the cylinder is provided with ports 8, 9, port 9 being permanently connected to a drain 20, and port 8 and a port 14 being selectively connected to a source of pressure 19 or the drain by a manually-operated valve 18 and an hydraulically-operated valve 24 responsive to actuation of a pilot valve 27 by a cam 28 on the ram 4. When the ram is to be extended, for example to close the gate valve, the manually-operated valve 18 is moved to a position in which the port 14 is connected to the source 19 and the valve 24 is urged by a spring to a position in which the source is also connected to the port 8 and, by way of an annular clearance 11 and space 12, acts on the piston 2, the differential pressure acting on the piston 2 to move the vane until the cam 28 actuates the pilot valve 27 to move the valve 24 to its alternative position and connect the port 8 and space 12 to the drain, the pressure from the port 14 acting on the piston 2 to complete the stroke of the ram. The increased pressure is necessary for the final closing movement of the gate valve if the gate is wedge-shaped. To withdraw the ram, the valve 18 is moved to connect the port 14 to drain and port 8 to the source so that the area of the piston 1 is effective for the initial movement of the ram and the initial opening movement of the gate, the completion of the stroke of the ram being effected by the fluid pressure in the space 12 acting on the annular area of the piston 2.
Patent GB-1065863-A (GB)
Title: Improvements in or relating to copper alloys
IPC: C22C9/00
Filed: 1964-04-08
Abstract: A copper base alloy comprises .Be.1.9 - 2.1% .Co.1 - 2% the balance, apart from incidental impurities (e.g. Si, Mg, Al, Fe, V and Ti in amounts of up to 0.5%), being copper.  The alloy may be solution treated at 780 DEG  - 800 DEG C. quenched (e.g. in water and aged at 290 DEG  - 370 DEG C.
Patent GB-442851-A (GB)
Title: Electric illuminating device for sewing machines
IPC: D05B79/00
Filed: 1934-05-15
Abstract: 442,851. Sewing-machines. GONYK, I., 64, Rennweg, Vienna. May 15, 1934, No. 14604. Void [Abridged as open to inspection under Sect. 91 of the Acts, Nov. 16, 1934]. [Class 112] The lamp frame and contact plugs of an electric illuminating device for a sewing machine are inserted into a contact box mounted on the machine frame. The invention is described as applied to a casing consisting of two halves 1, 2 of pressed sheet metal held together by connecting rims. A yoke 8 is secured to the casing half 2 and carries a plate 10, Fig. 4, with bores for the insulated contact sleeves for connecting the lamp to the junction box 6 by the cable 7. The casing for the lamp is secured to the front half 1 of the casing by a plate 17 of insulating material, Fig. 6, with holes to register with the sleeves of the plate 10 for contact plugs. The lamp casing comprises two symmetrical halves 22, 23 and is secured to the plate 17 by a screw 27 threading into a boss 19. The casing has a reflector 50 for the lamp 51 and spring plungers connected to the supply points on the plate 10. The lamp switch is in the form of a partly toothed wheel 47 with arcuate recesses 49 for engaging the contact pieces 45, 46.
Patent GB-117358-A (GB)
Title: Improvements in or relating to Machines for Treating Hides, skins and Leather.
Inventor: HALL JOSEPH WILLIAM HENRY
IPC: C14B17/04
Filed: 1917-10-09
Abstract: 117,358. Hall, J. W. H. Oct. 9, 1917. Rotating-tool machines.-Relates to means for attaching knives to cutting rollers for fleshing, unhairing, scudding, shaving, whitening, buffing and setting out, &c. The knife a is formed with a broad base which rests on the surface of, or in grooves in, the roller.. The ends d of the knife are screw-threaded to receive tightening and lock nuts f which are turned to bear against a flange e on the roller and maintain the knife in tension. The middle of the knife, and, if desired, intermediate parts, are held in position, to give the knife a double spiral form, by screws or by screwheld plates c, g, Fig. 4.
Patent GB-1254925-A (GB)
Title: A magnetic make-&-break igniter particularly for a pocket lighter
Inventor: HALM RICHARD
IPC: F23Q3/00
Filed: 1969-03-20
Abstract: 1,254,925. Reciprocating generators. R. HALM. 20 March, 1969 [21 March, 1968], No. 14622/69. Heading H2A. In a magnetic make-and-break igniter, e.g. for a pocket lighter, comprising a rectangular, laminated magnetic circuit one limb of which incorporates a permanent magnet 1 and the opposite limb 5 carries low and high voltage coils 6, 7 respectively, whilst a third, limb 9 is secured to a lever 10 pivoted at 13 to a non- magnetic support 4 and forms an armature having contact surfaces 11, 12 engaging cooperating contact surfaces 11<SP>1</SP>, 12<SP>1</SP> on the end of limb 5 and the end of an extension 2 attached to or integral with magnet 1, the surfaces 11, 12 and 11<SP>1</SP>, 12<SP>1</SP> are disposed in common planes which coincide when the magnetic circuit is closed. As shown, the surfaces extend obliquely, to the axes of limb 5 and magnet 1 and surface 11<SP>1</SP> is enlarged at 8 by turning outwards the outer laminations of limb 5. The armature may be loosely pivoted so that the contact surfaces can align themselves with each other. Movement of the armature to break the magnetic circuit simultaneously opens a switch ( 16), Fig. 6 (not shown), in the low voltage coil circuit, the contacts of which are bridged by a capacitor (17).
Patent GB-674900-A (GB)
Title: Manufacture of chlorinated paraffin hydrocarbons
Inventor: THOMAS EDWARD BOADEN
IPC: C07C17/10
Filed: 1949-06-01
Abstract: Paraffin hydrocarbons and mono-chlorinated paraffin hydrocarbons are chlorinated by reacting with chlorine in the presence of sulphur mono-chloride.  Methane, ethane, propane and butane and the corresponding monochlorocompounds are specified. The reaction is preferably effected in the liquid phase and inert organic liquid diluents, e.g. carbon tetrachloride, may be present.  Reaction may be effected in a column containing sulphur monochloride, the chlorine and other reactant being passed cocurrent.  The column may be packed with, e.g., beads, and should be provided with means for cooling and shielded from actinic light.  Temperatures below 100 DEG  C. are preferred.  Thus methane can be treated at 18-25 DEG  C. to give methyl chloride with some methylene chloride and substantially no higher chlorinated derivatives, although the chlorination of methyl chloride with an equimolar quantity of chlorine at 20 DEG  C. results in approximately equal quantities of methylene chloride, chloroform and carbon tetrachloride, the production of the latter falling off at higher temperatures, e.g. at the best temperatures, 65-75 DEG  C., the major part of the product is methylene chloride with about half as much chloroform and very little tetrachloride and at 50 DEG  C. the major product is chloroform with rather less methylene chloride and about half the quantity of tetrachloride obtained at 20 DEG  C. Preferably the process is operated in two stages, methane being chlorinated to give methyl chloride and a little methylene chloride and the latter mixture is then chlorinated under optimum conditions for methylene chloride production.  When the production p  of highly chlorinated derivatives is to be avoided the hydrocarbon or chlorinated hydrocarbon should be in excess of the chlorine, e.g. preferably twice as much methyl chloride or methane as chlorine is used.  The highest ratio specified is 5 : 1.  If highly chlorinated derivatives are desired, chlorine should be used in excess. Preferably a deficiency of chlorine is used since the sulphur mono-chloride is so efficient as a catalyst that all the chlorine may be utilized.  In examples in which sulphur monochloride is present: (1) methyl chloride and chlorine are reacted at 70 DEG  C. in a molar ratio of 3.5:1 to yield methylene chloride, chloroform, a little carbon tetrachloride and hydrogen chloride; (2) the same reactants are reacted at 70 DEG  C. in a molar ratio of 3.6:1 at a greater rate than in (1) when the formation of carbon tetrachloride is prevented; and in (3) methane and chlorine are reacted at 20 DEG  C. in a molar ratio of 2.2:1 to give methyl chloride with a trace of methylene chloride.  In the Provisional Specification the starting materials are referred to as compounds containing less chlorine than the products.
Patent GB-601610-A (GB)
Title: Improvements in crank cases for piston engines, pumps and compressors
IPC: F02B75/24
Filed: 1945-06-11
Abstract: 601,610. Steam engines. ELECTROTUBESOLESMES. June 11, 1945, No. 14752. Convention date, Sept. 1, 1944. [Class 122 (iii)] [Also in Groups XXVII and XXVIII] A two-piece crank-case for a piston engine, pump or compressor of the type having opposed cylinders 1, 2, Fig. 1, has the crank-shaft 19 mounted in half-bearings 11, 13 secured to one of the crank-case sections, the plane of the independent joint 6 between the sections being off-set as required from the joint plane of the half bearings. In a modification, the bearing bolts 17, 18 are extended to pass through the crank-case sections and are provided with externally accessible nuts for clamping the crank-case sections together independently of the bearing adjustment. In a further modification, Fig. 3, the cylinders are separate from the crank-case sections. At a plane passing through the main bearings (upper half of Figure), the sections are secured together by bolts 53 and at a plane between the journals, by bolts 61 the joint plane 52 being off-set from the joint plane 51 of the half bearings 46, 49. This modification is stated to be particularly adapted to engines having a crank-case and journals made of light metal such as magnesium. The Specification as open to inspection under Sect. 91 describes also a modification applicable to an engine having cylinders arranged in a single line. This subject-matter does not appear in the Specification as accepted.
Patent GB-690531-A (GB)
Title: Drill rod assembly for rock drilling operations
IPC: E21B17/046
Filed: 1951-06-21
Abstract: 690,531. Percussive drills. SANDVIKENS JERNVERKS AKTIEBOLAG. June 21, 1951 [June.28, 1950], No. 14785/51. Class 124. The leakage of flushing liquid from a drill rod assembly is reduced by providing a resilient sealing means mounted on the ends of the drill rods and engaging with a sleeve surrounding the ends of the rods, the sleeve allowing slight longitudinal movement of the rods and transmitting rotary motion. As shown, two rods having hexagonal ends 3, 6 are inserted in a sleeve 5 of the same section held in position by flat metal springs 9. A resilient, e.g. rubber, plastic, or leather, washer 16 is fitted over the cylindrical terminal portions 18 and 19 of the rods and engages in a groove 17 in the sleeve. Two washers, one on each rod may be provided, Fig. 7 (not shown). In a further modification, Fig. 6 (not shown), the terminal portions of the rods may be frusto-conical and the sealing means may have inturned ends engaging with the peripheries of the end portions. The end portions of the rods may be of any desired crosssection.
Patent GB-556928-A (GB)
Title: Improvements in or relating to automatic or semi-automatic telephone systems
IPC: H01H67/12
Filed: 1942-04-20
Abstract: 556,928. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and BAKER, G. T. April 20, 1942, No. 14870/43. Divided out of 556,922. Drawings to Specification. [Class 40 (iv)] The description is the same as a part of that in Specification 556,922. The claims relate to features of the switch construction. Specifications 545,634, 549,047, 556,918, 556,919, 556,920, 556,921 and 556,926 also are referred to.
Patent GB-694367-A (GB)
Title: Improvements in or relating to mechanisms for printing on tape
IPC: B41K3/08
Filed: 1950-06-15
Abstract: 694,367. Printing processes. McLELLAN, A. July 31, 1951 [June 15, 1950], No. 14943/50. Classes 100(ii) and 100(iv) A tape printing mechanism comprises a type member 1 having type characters which are readable normally i.e. from left to right, a platen 2 to press a transparent or sufficiently translucent tape 3 against a selected type, inking means (shown as an ink-ribbon 6) and means for feeding the tape 3. The tape 3 is of cellulose or like strip coated, on the side to be printed, with rubber latex and treated with a talc so as to take the ink. The printing can be read through a window 8.