US2784743A - Shuttle propelling mechanism for looms - Google Patents
Shuttle propelling mechanism for looms Download PDFInfo
- Publication number
- US2784743A US2784743A US440885A US44088554A US2784743A US 2784743 A US2784743 A US 2784743A US 440885 A US440885 A US 440885A US 44088554 A US44088554 A US 44088554A US 2784743 A US2784743 A US 2784743A
- Authority
- US
- United States
- Prior art keywords
- shuttle
- looms
- propellant
- chamber
- explosion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D49/00—Details or constructional features not specially adapted for looms of a particular type
- D03D49/24—Mechanisms for inserting shuttle in shed
- D03D49/42—Mechanisms for inserting shuttle in shed whereby the shuttle is propelled by liquid or gas pressure
Definitions
- a shuttle driving mechanism for looms in which the shuttle is reciprocated through the weaving shed by means of the explosive force generated by a fluid propellant under controlled conditions.
- the shuttle is driven by the explosion of a liquid propellant and in a second embodiment the shuttle is driven by the explosion of a gaseous mixture, for example, by the use of a gaseous propellant and more specifically by the use of amodified internal combustion engine.
- Figure 1 is a side elevation partly in section of one side of one embodiment of the shuttle driving mechanism
- Figure 2 is a diagrammatical representation of a second embodiment of the shuttle driving mechanism using a 'monopropellant
- Figure 3 is a diagrammatical side elevation of a third embodiment in which the shuttle is driven by a binary propellant.
- Figure 4 is a side elevation partly in section of a two cycle gasoline engine as modified for driving the shuttle in one embodiment of the invention.
- the shuttle propelling mechanism of the present in vention may be used with any type of weaving machine or loom. 'It can be used equally well with convertible or non-convertible looms having shuttle magazines. Likewise, it may be used with shuttles which do not carry a bob-bin but which are small shuttles having means to grip the end of the filling, and carry it across the weaving machine by drawing the yarn directly from a large package.
- FIG. 1 there is shown an example of a shuttle driving mechanism using a liquid propellant.
- FIG. 1 At the left side of the figure there is shown two sets of warp the exhaust gases.
- the cylinder 17 is provided with exhaust ports 20 which are closed during the explosion but are open when the piston is shot out to its maximum point shown in the broken lines.
- the other end of the cylinder 17 may be closed or provided with a constricted exhaust opening 21.
- the cylinder 17 is enclosed in a chamber 22 connected to an exhaust duct 2-3 for removing
- the fluid propellant is introduced through the line 24 by means of a metering valve 25 which is actuated through the levers 26 and 27 by conneot-ion with the piston rod 2%.
- a spark plug 29 may be inserted in the combustion chamber 17 as shown, or a conventional detonator may be inserted in place of the spark plug.
- the piston rod may be provided with a dependent arm 30 which closes an electrical switch 31 on the end wall of the chamber 22, this switch being connected through the wires 32 to the spark plug circuit.
- the chamber 17 will remain hot and in some cases the temperature of this chamber may be suflicient to cause explosion of the propellant fluid.
- the shuttle compresses the piston and simultaneously opens the valve 25 permitting a unit quantity of fluid propellant to enter the combustion chamber.
- the shuttle will be driven out of the box and through the weaving shed to the other side where it is received, actuating a propellant in asimilar explosion chamber and is again shot back; therefore, the shuttle is driven back and forth continuously. Further, the shuttle synchronizes the explosions because the shuttle actuates the explosion by its movement into the box.
- FIG 2 there is shown an embodiment especially designed for the use of monopropellants.
- the propellant is injected through the line 35 into the explosion chamber 36 which has the form of a cylinder and which is provided with a piston 37 having a shuttle receiving cup 38 on the end of the piston rod 39.
- the shuttle 14 is driven back and forth between the two identical units by the successive explosions.
- the propellant is introduced into the combustion chamber 36 when the valve 4% is opened by means of the arm 41 connected to the piston rod 39.
- the detonator 42 may be inserted in the wall of the combustion chamber as shown and energized through a second arm 43 attached to the piston rod 39.
- liquid or gaseous monopropellant such as, for example, methyl nitrate, nitro methane, a mixture of a hydrocarbon fuel with tetranitromethane or a mixture of 80 parts methyl nitrate and 20 parts methanol and the like.
- FIG 3 there is shown an embodiment 'of the invention for the use of binary propellants.
- the mechanism is similar to that shown in Figure 2, except that the combustion chamber 36 is provided with a second inlet pipe 35a for introducing the second ingredient of the binary mixture.
- Both of the lines 35 and 35a are provided with valves and 461a which are actuated by rods connected to the piston rod and operated by the movement of the shuttle.
- the binary propellant there may be used mixtures such as, for example, hydrazine hydrate and hydrogen peroxide or phenyl hydrazine and nitric acid, aniline and nitric acid, furfural alcohol and nitric acid and the like.
- binary propellants are in general hydrogen compounds of nitrogen or unsaturated compounds which are actuated by an oxidizer such as hydrogen peroxide, nitric acid or nitric oxide N204, but the invention is not limited to any particular class of binary propellants.
- the invention is also capable of utilizing modified internal combustion engines as the shuttle driving devices.
- a modified two cylinder gasoline engine comprising a cylinder 50 having a large piston 51 centrally disposed to divide the cylinder into a combustion chamber 52 having a fuel chamber 53.
- the chamber 53 has a fuel intake port 54 provided with a oneway valve 55 and a line 56 which by-passes the piston in its retracted position to introduce fuel into the combustion chamber.
- This latter chamher also has an exhaust port 59 and a spark plug 57.
- the piston rod passes through the end of the cylinder 50 and is provided on the end with a shuttle receiving cup 58.
- a two cycle gasoline engine is conventional, it will not be described.
- such an engine is positioned at each side of the loom in a position to receive the shuttle.
- the spark plug is actuated by the movement of the shuttle, for example, by the same switch arrangement shown in Fig. 1.
- the exhaust gases may be withdrawn through a duct such as duct 23 shown in Figure 1. No mechanical link is necessary between the opposite engines because the piston is compressed solely by the entering movement of the shuttle and therefore the two engines are synchronized by the movement of the shuttle.
- the explosive chamber may be provided with a silencer of conventional type as used on ordnance and to reduce fumes resulting from the explosion, the loom may be provided with an air exhaust duct which is customary in modern weaving mills.
- the present invention provides for the speeding up of the shuttle motion by utilizing an explosive charge. This has the advantages of making it possible to use wider looms and also to increase the speed of operation of looms.
- a mechanism for propelling a shuttle in a loom comprising a shuttle, means for exploding a fluid propellant, means actuated by said explosion for propelling said shuttle, and means actuated by the movement of said shuttle for actuating said explosion.
- a shuttle propelling mechanism as recited in claim I in which means are provided for introducing the fluid propellant into a combustion chamber in successive unit quantities.
- a shuttle propelling mechanism as recited in claim 1 in which said combustion chamber is provided with fluid lines for separately introducing different components of a binary propellant.
- a shuttle propelling mechanism as recited in claim 2 in which the said combustion chamber comprises the combustion chamber of an internal. combustion engine and in which the shuttle serves to compress the gas in said chamber by the movement of the shuttle.
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US440885A US2784743A (en) | 1954-07-02 | 1954-07-02 | Shuttle propelling mechanism for looms |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US440885A US2784743A (en) | 1954-07-02 | 1954-07-02 | Shuttle propelling mechanism for looms |
Publications (1)
Publication Number | Publication Date |
---|---|
US2784743A true US2784743A (en) | 1957-03-12 |
Family
ID=23750576
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US440885A Expired - Lifetime US2784743A (en) | 1954-07-02 | 1954-07-02 | Shuttle propelling mechanism for looms |
Country Status (1)
Country | Link |
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US (1) | US2784743A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3026912A (en) * | 1958-03-12 | 1962-03-27 | American Viscose Corp | Shuttle propelling mechanism for looms |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2682895A (en) * | 1951-11-03 | 1954-07-06 | American Viscose Corp | Shuttle driving mechanism for looms |
-
1954
- 1954-07-02 US US440885A patent/US2784743A/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2682895A (en) * | 1951-11-03 | 1954-07-06 | American Viscose Corp | Shuttle driving mechanism for looms |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3026912A (en) * | 1958-03-12 | 1962-03-27 | American Viscose Corp | Shuttle propelling mechanism for looms |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: KELLOGG CREDIT CORPORATION A DE CORP. Free format text: AGREEMENT WHEREBY SAID HELLER AND RAYONIER RELEASES ALL MORTGAGES AND SECURITY INTERESTS HELD BY AVTEX ON APRIL 28, 1978, AND JAN. 11, 1979, RESPECTIVELY AND ASSIGNS ITS ENTIRE INTEREST IN SAID MORT-AGAGE AGREEMENT TO ASSIGNEE;ASSIGNORS:WALTER E. HELLER & COMPANY, INC. A NY CORP.;ITT RAYONIER INCORPORATED, A DE CORP.;AVTEX FIBERS INC., A NY CORP.;REEL/FRAME:003959/0350 Effective date: 19800326 Owner name: WALTER E. HELLER & COMPANY, INC., A CORP. OF DEL. Free format text: AGREEMENT WHEREBY AETNA RELEASES AVTEX FROM ALL MORTAGES AND SECURITY INTERESTS IN SAID INVENTIONS AS OF JANUARY 11,1979, AND ASSIGNS TO ASSIGNEE THE ENTIRE INTEREST IN SAID MORTAGE AGREEMENT TO ASSIGNEE;ASSIGNORS:AETNA BUSINESS CREDIT, INC., A CORP. OF N.Y.;AVTEX FIBERS, INC, A CORP. OF NY;KELLOGG CREDIT CORP., A CORP. OF DEL.;REEL/FRAME:003959/0250 Effective date: 19800326 Owner name: BALBOA INSURANCE COMPANY C/O THE PAUL REVERE EQUIT Free format text: AS SECURITY FOR INDEBTEDNESS RECITED ASSIGNOR GRANTS , BARGAINS, MORTGAGES, PLEDGES, SELLS AND CREATES A SECURITY INTEREST WITH A LIEN UNDER SAID PATENTS, SUBJECT TO CONDITIONS RECITED.;ASSIGNOR:AVTEX FIBERS INC. A NY CORP.;REEL/FRAME:003959/0219 Effective date: 19810301 Owner name: JOHN HANCOCK MUTUAL LIFE INSURANCE COMPANY JOHN HA Free format text: AS SECURITY FOR INDEBTEDNESS RECITED ASSIGNOR GRANTS , BARGAINS, MORTGAGES, PLEDGES, SELLS AND CREATES A SECURITY INTEREST WITH A LIEN UNDER SAID PATENTS, SUBJECT TO CONDITIONS RECITED.;ASSIGNOR:AVTEX FIBERS INC. A NY CORP.;REEL/FRAME:003959/0219 Effective date: 19810301 Owner name: PAUL REVERE LIFE INSURANCE COMPANY THE C/O THE PAU Free format text: AS SECURITY FOR INDEBTEDNESS RECITED ASSIGNOR GRANTS , BARGAINS, MORTGAGES, PLEDGES, SELLS AND CREATES A SECURITY INTEREST WITH A LIEN UNDER SAID PATENTS, SUBJECT TO CONDITIONS RECITED.;ASSIGNOR:AVTEX FIBERS INC. A NY CORP.;REEL/FRAME:003959/0219 Effective date: 19810301 Owner name: PROVIDENT ALLIANCE LIFE INSURANCE COMPANY C/O THE Free format text: AS SECURITY FOR INDEBTEDNESS RECITED ASSIGNOR GRANTS , BARGAINS, MORTGAGES, PLEDGES, SELLS AND CREATES A SECURITY INTEREST WITH A LIEN UNDER SAID PATENTS, SUBJECT TO CONDITIONS RECITED.;ASSIGNOR:AVTEX FIBERS INC. A NY CORP.;REEL/FRAME:003959/0219 Effective date: 19810301 Owner name: WESTERN AND SOUTHERN LIFE INSURANCE COMPANY THE C/ Free format text: AS SECURITY FOR INDEBTEDNESS RECITED ASSIGNOR GRANTS , BARGAINS, MORTGAGES, PLEDGES, SELLS AND CREATES A SECURITY INTEREST WITH A LIEN UNDER SAID PATENTS, SUBJECT TO CONDITIONS RECITED.;ASSIGNOR:AVTEX FIBERS INC. A NY CORP.;REEL/FRAME:003959/0219 Effective date: 19810301 Owner name: NEW ENGLAND MUTUAL LIFE INSURANCE COMPANY 501 BOYL Free format text: AS SECURITY FOR INDEBTEDNESS RECITED ASSIGNOR GRANTS , BARGAINS, MORTGAGES, PLEDGES, SELLS AND CREATES A SECURITY INTEREST WITH A LIEN UNDER SAID PATENTS, SUBJECT TO CONDITIONS RECITED.;ASSIGNOR:AVTEX FIBERS INC. A NY CORP.;REEL/FRAME:003959/0219 Effective date: 19810301 |