US3199546A

US3199546A - Signalling device

Info

Publication number: US3199546A
Application number: US309988A
Authority: US
Inventors: Arthur N Verrier
Original assignee: LESSONA CORP
Current assignee: Leesona Corp; LESSONA CORP
Priority date: 1963-09-19
Filing date: 1963-09-19
Publication date: 1965-08-10
Anticipated expiration: 1982-08-10

Description

1965 A. N. VERRIER 3,199,546

SIGNALLING DEVICE Filed Sept. 19, 1965 FIG. I

26 29 84 as 62 7o 42 40 a4 INVENTOR. ARTHUR N. VERRIER ATORNEY United States Patent 3,199,546 SIGNALLENG DEVICE Arthur N. Vernier, Warwick Neck, RL, assignor to Leesona Corporation, Warwick, 11.1., a corporation of Massachusetts Filed Sept. 19, 1963, Ser. No. 309,983 3 Claims. (Cl. 139-336.4)

The present invention relates to a device for use with looms and more particularly relates to such a device which is adapted to give a signal or stop the loom depending on the level to which the bobbins in the looms magazine have been depleted.

One object of the present invention is to provide a device for use with the magazine of a loom which will actuate a signal when the bobbins in said magazine have been depleted a predetermined amount.

Another object of the present invention is to provide a device for use with the magazine of a loom which will stop the loom when the bobbins in said magazine have been depleted to a predetermined amount.

Another object of the present invention is to provide a device for use with the magazine of a loom which will actuate a signal when the supply of bobbins in the magazine have been depleted to a first predetermined amount and which will cause the loom to stop when said bobbins have been depleted to a second predetermined amount.

These and various other objects and features or" the invention will be more clearly understood from areading of the detailed description of the invention in conjunction with the drawing, in which:

FIGURE 1 is a fragmentary front elevation of a loom equipped with the present invention.

FIGURE 2 is a sectional view taken on the line IIII and looking in the direction of the arrows.

FIGURE 3 is an enlarged fragmentary View showing the loom stopping blade of FIG. 2.

FIG. 4 is a fragmentary front elevational view of the loom stopping mechanism, and

FIGURE 5 is a schematic Wiring diagram of the present invention.

The present invention is primarily for use with looms of the type equipped with a so-called mechanical warp stop mechanism which is adapted to stop the operation of the loom by mechanical means, as opposed to closing an electrical circuit, in the event one of the warp yarns breaks. Many such looms are equipped with vertical magazines adapted to hold a stack of wound bobbins ready for insertion into the loom shuttle by the looms bobbin changing mechanism. Such magazines can be manually loaded by loom attendants or the loom can be equipped with an automatic winding machine of the type disclosed in US. Patent 2,763,443 to W. V. Goodhue et al., which will automatically wind filling bobbins and place them in the magazine. Regardless of the manner in which the magazine is filled it is highly desirable that an adequate supply of bobbins always be maintained in the magazine. To this end, the present invention provides two switches associated with the magazine both of which are held open by bobbins when the magazine is completely full. One of these switches is located adjacent the upper portion of the magazine and when it is permitted to close, due to the supply of bobbins being depleted a predetermined amount, it closes the circuit to a signal light which will indicate to the loom attendant that the bobbins are below a desired level. In the event the situation is not corrected and the supply of bobbins continues to be depleted a second switch will close when a second predetermined level is reached to close the circuit to a solenoid which inserts a blade into the loom stopping mechanism causing the loom to stop. Inasmuch as the loom upon which "ice that the lowermost ibobbin carried thereby will be in position to be inserted into the loom shuttle, not shown, by the loom hammer 28. Bobbin magazine 26 includes a channeled shaped main support member having upper and lower flanges 29, 31 respectively connected by an up standing wall 36 to which are fixed a pair of bobbin tip.

guiding rails 32 and a pair of bobbin butt guide rails 34. All of the above is old and is set forth in only so much detail as is necessary to a complete understanding of the invention.

A horizontal bar 4!? has one end fixed to the bracket 16 and extends out parallel to, but forwardly of, bobbins B in magazine 26. A normally closed switch 42 is fixed to bar 4% so as to be positioned in front of magazine 26 with its depending pivoted actuating finger 44 positioned to be engaged by the two uppermost bobbins B, when a sufficient number of bobbins'are in the magazine, to pivot said finger to open the contacts of switch 42.

A hole 46 is formed in upstanding wall 30 adjacent the lower end of magazine 26 and a lever 48 extends therethrough and is pivoted at its midpoint on said wall. The left-hand end of lever 48 is so positioned that it will be engaged by the next to the bottom bobbin in said magazine and held with its right-hand end elevated. A depending contact element Sills fixed to the right-hand end of lever 48 and arranged to engage electrical terminal 52 when the lever 48 is permitted to fall. Terminal 52 is secured to, but insulated electrically from, lower flange 31.

A signal light 58 is fixed to loom arch 18 and carries a transformer 69 Within its housing. A box 62 is mounted in a rearward extension on loom frame 10 so as to be over cooperating

toothed bars

64, 66 and 68 which comprise well known means for stopping the loom in the event a warp yarn breaks. A solenoid 70 is mounted in box 62 and has its plunger 72 connected to one end of pivoted lever '74. The other end of lever 74 has a depending wire 76 pivoted thereto and extending downwardly through a suitable opening formed in the bottom of box 62. Blade member 78, preferably made from sheet metal, is susended from the lower end of wire 76 so that the three

toothed bars

64, 66 and 68 of the loom stop motion pass through the opening 89 formed in said blade. High voltage electrical power is supplied to the primary of transformer 6% through the two wire cable 82. One side of the secondary winding of transformer 60 is grounded to the housing of light 58 and through said housing to the frame of the loom. The second side of said secondary is connected through light 58 to one terminal of switch 42 by means of the wire 84. The second terminal of switch 42 is grounded to the loom frame. The second side of the transformer secondary is also connected to one side of solenoid 70 by the wire 86 and the other side of said solenoid is connected to the terminal 52 by the wire 88. Lever 48 and contact 5%) are grounded to the loom frame through bobbin magazine 26.

The above described apparatus operates in the following manner. When magazine 26 is full of bobbins B, contact of said bobbins with finger 44 holds switch 42 open so that signal light 53 is not lit and at the same time bobbins hold lever 48 raised so that solenoid 70 is not energized and its arm 72 is therefore extended. At such time as two bobbins have been withdrawn from the magazine without being replaced finger 44 will swing in a counterclockwise direction as viewed in FIG. 2 to close switch 42 whereupon light 58 will be energized indicating the need for timely bobbin replenishment. As bobbins continue to be used from said magazine without replenishment, when all but one have been removed from the magazine lever 43 will be permitted to fall thus closing the electrical circuit to solenoid 76]. Upon being energized solenoid 7% draws its plunger 72 upwardly pivoting lever '74 in a counterclockwise direction to thrust blade 78 downwardly between the notches in the

bars

64, 66 and 63. It will be understood that in normal loom operation middle bar 6% is reciprocated back and forth and that upon being stopped it operates to stop the operation of the loom all in a manner old and Well known in the art. When blade '73 is inserted between the teeth of said three bars by the action of solenoid 70 reciprocation of bar 66 is stopped to thereby stop the loom and the loom will remain stopped and inoperative until such time as a supply of bobbins has been placed in magazine 26 to once again lift lever 48 to break the circuit to solenoid 70 whereupon blade 78 is raised to free bar 66. In the same manner light 53 will remain lit until such time as a sutficient number of bobbins have been placed on the magazine to once again pivot finger 44 in a counterclockwise direction to open the circuit to said light 58.

Since certain changes may be made in the above apparatus without departing from the scope of the invention herein involved, it is intended that all matter contained in the above description or shown in the accompanying drawing shall be interpreted as illustrative and not in a limiting sense. i

What is claimed is:

1. In a loom having a mechanical stop motion means comprising a plurality of toothed ,bars one of which reciprocates relative to another operative to stop said loom when said relative reciprocation is stopped and a bobbin changing mechanism including a vertically arranged ma gazine for holding a supply of reserve bobbins, the combination therewith of a source of electrical power, a solenoid, a blade positioned adjacent said bars and connected to said solenoid whereby said solenoid when energized moves said blade between the teeth on said bars to stop the relative reciprocation thereof, said solenoid when deenergized being operable to remove said blade from said teeth, and means in the path of travel of bobbins in said magazine for completing an electrical circuit from said source of power to said solenoid when the supply of bobbins in said magazine is depleted to a predetermined amount.

2. A loom having a mechanical stop motion means including at least one reciprocating bar and a blade engageable therewith to stop said loom and a bobbin changing mechanism including a vertically arranged magazine for holding a supply of reserve bobbins, the combination therewith of a source of electrical power, electrically energized signalling means, electrically energized operating rcans for actuating said stop motion means, and means in the path of travel of bobbins in said magazine for completing an electrical circuitfrom said source of power to said signalling means when the supply of bobbins in said magazine is depleted to a first predetermined amount and for completing a circuit from said source of power to said electrically energized operating means when said supply of bobbins is depleted to a second predetermined amount, said operating means when energized being operable to move said blade into engagement with said bar to stop said loom.

3. A loom having mechanical stop motion means comprising a plurality of toothed bars one of which reciprocates relative to another operative to stop said loom when said relative reciprocation is stopped and a bobbin chang ing mechanism including a vertically arranged magazine for holding a supply of reserve bobbins, the combination therewith of a source of electrical power, a solenoid, a blade positioned adjacent said bars and connected to said solenoid whereby said solenoid when energized moves said blade between the teeth on said bars to stop the relative reciprocation thereof, said solenoid when deenergized being operable to remove said blade from said teeth, electrically energized signalling means, a first bobbin detecting means in the path of travel of bobbins in said magazine for completing an electrical circuit from said source of power to said signalling means when the supply of bobbins in said magazine is depleted to a first predetermined amount, a second bobbin detecting means in the path of travel of said bobbins for completing an electrical circuit from said source of power to said solenoid when the supply of bobbins in said magazine is depleted to a second predetermined amount.

References Cited by the Examiner UNITED STATES PATENTS 23,107 of 1907 Great Britain.

DONALD W. PARKER, Primary Examiner.

Claims

1. IN A LOM HAVING A MECHANICAL STOP MOTION MEANS COMPRISING A PLURALITY OF TOOTHED BARS ONE OF WHICH RECIPROCATES RELATIVE TO ANOTHER OPERATIVE TO STOP SAID LOOM WHEN SAID RELATIVE RECIPROCATION IS STOPPED AND A BOBBIN CHANGING MECHANISM INCLUDING A VERTICALLY ARRANGED MAGAZINE FOR HOLDING A SUPPLY OF RESERVE BOBBINS, THE COMBINATION THEREWITH OF A SOURCE OF ELECTRICAL POWER, A SOLENOID, A BLADE POSITIONED ADJACENT AID BARS AND CONNECTED TO SAID SOLENOID WHEREBY SAID SOLENOID WHEN ENERGIZED MOVES SAID BLADE BETWEEN THE TEETH ON SAID BARS TO STOP THE RELATIVE RECIPROCATION THEREOF, SAID SOLENOID WHEN DEENERGIZED BEING OPERABLE TO REMOVE SAID BLADE FROM SAID TEETH, AND MEANS IN THE PATH OF TRAVEL OF BOBBINS IN SAID MAGAZINE FOR COMPLETING AN ELECTRICAL CIRCUIT FROM SAID SOURCE OF POWER TO SAID SOLENOID WHEN THE SUPPLY OF BOBBINS IN SAID MAGAZINE IS DEPLETED TO A PREDETERMINED AMOUNT.