US701248A - Electric alarm for cloth-finishing machines. - Google Patents

Description

Nb. 701,248. Patented may 27, I902.

A J. F. ammo.

ELECTRIC ALARM FDR CLOTH FINISHING MACHINES.

7 (Application filed Aug. 6, 1901.) v(No Model.) 2 Sheets-8heet I Io. 70l,248. Patented May 27, I902. J. F. BANNUN.

ELECTRIC ALARM FOR CLOTH FINISHIHG MACHINES.

(Application filed Aug. 6, 1901.) (No Model)- 2 Sheets-Shoot 2.

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John E. 3 common UNITED STATES PATENT OFFICE.

JOHN "F. BANNON, or CENTRAL FALLS, nnonn ISLAND.

ELECTRIC ALARM FOR CLOTH-FINISHING MACHINES.

SPECIFICATION forming part of Letters .Patent N 0. 701,248, dated May 2'7, 1902.

Application filed August 6. 1901. Serial No- 71,057. (No model.)

T0 at whom it may concern:

Be it known that I, JOHN F. BANNON, a citizen of the United States of America, whose address is 32 Bagley street, in the city of Central Falls, county of Providence, and State of Rhode Island, have invented certain new and useful Improvements in Electric Alarms for Cloth-Finishing Machines, of which the following is a specification.

My invention relates to an electrical device adapted to be secured upon and extend be tween the end frames of a machine which finishes cloth.

In the class of machines employed for finishing cloth it occasionally happens that a small particle of metal, such as a pin from the garment of the operator, will fall upon the fabric and be carried around the cylinder, with the result that the fabric is made torn or mutilated, and thus causing great loss to the manufacturers.

The object I have in view is to provide a device electrically actuated by a battery and having an alarm to indicate when any such small piece of metal is carried by the cylinder of the machine.

My invention consists of a comb having a series of blades adapted to contact with the periphery of the bowl-cylinder of the machine and provided with electrical connection to an alarm for indicating the disarrangement of the fabric, whereby the disadvantages above referred to are to a great extent eliminated.

The nature and general characteristic features of my invention will be fully understood from the following description, taken in connection with the accompanying drawings, forming a part thereof, in which- Figure 1 represents a transverse sectional elevation of a machine for finishing cloth and showing the relative position of my attachment thereon. Fig. 2 is a front elevation of my attachment as secured in position for operating upon the bowl-cylinder of the machine. Fig. 3 is a partial top plan view of the comb. Fig. 4: is a central longitudinal sectional View of the comb as mounted upon brackets secured to the end frames of the machine. Fig. 5 is a side elevation of the bracket and comb. Fig. 6 is a perspective view of one of the blades of the comb.

Similar characters of reference indicate similar parts in the different views of the drawings.

A indicates the comb as a whole, adapted to extend longitudinally with what is commonly called the bowl B and having its ends rigidly secured upon suitable brackets G C, which are bolted upon the outer face of the end frames D D of the machine, as shown in Fig. 2. In referring to Fig. 4 this comb comprises a metallic supporting-bar a, of a rectangular shape in cross-section, extending upwardly near each extremity, so as to form shoulders I) Z), which abut the inner faces of the brackets, thence extending outwardly and over the flanges c c of the brackets, as at Ct at.

c is a hard-rubber strip extending between the shoulders f f of the bar a, and this strip has its outer face flush with the outer faces of the extensions a a of the bar a, and this rubber strip is provided with a series of equispaced grooves g g, extending transversely through and at an angle from either edge of its outer face, as shown in Figs. 3 and 4:.

h 7L represent thin metallic blades, each of which has a narrow portion i (see Fig. 6) to fit into each of the grooves of the strip 6 and with an outwardly-projecting portion i, made somewhat wider than the portion 2', so as to form shoulders i which abut the edge of the rubber strip 6, and these blades have each end of their narrow portion upwardly bent, as at '0. 8

j is a hard-rubber strip which extends the 5 full length of the metallic bar a, and each of the rubber strips is drilled at divers points in its length between two of the blades to re ceive screws 70 70, which enter threaded open-- o ings made in the bar (1,, thus securing each and all of the blades firmly in position.

In the construction of the comb A an even number of pairs of blades are used, forming multiples, each blade of which are connected 5 together alternately by short wires Z Z having their ends soldered or otherwise secured upon the upwardly-bent portions i thus forming a negative and positive pole connection between the blades. This comb is designed to I00 extend longitudinally with the bowl B of the machine, as seen in Fig. 2, having each end secured upon the flanges c c of the brackets by bolts 0 c, and each of the end frames D D of the machine is drilled to receive clamping-bolts 0 0 which project through an elongated slot 0 formed in each of the brackets, for the purpose of adjusting the outer portions i of the blades to contact with the periphery of the bowl B. This bowl is constructed of non-conductor material. hen the comb as described is mounted upon the machine, a wire at is made secure upon the first blade or positive pole 1 (see Figs. 2 and 3) and its opposite end secured in the binding-post of an electric battery E, and from the other binding-post of the battery a wire m leads to one of the binding-posts of a magnetic alarm F, and a wire m connects with the opposite binding-post of the alarm and leads therefrom to the second blade or negative pole 2, and thus completing the circuit.

Referring to Fig. 1, we will assume that a pin or other small piece of metal has fallen upon the fabricn-say at a point 0. The bowl B as it revolves in the arrow direction will carry the said piece of metal between the peripheries of the bowl and the metal cylinder M, which cylinder will embed the said piece of metal into the bowl, which is constructed of pulp or othersuitable non-conductor material, and with each revolution of the bowl the embedded piece of metal will come in contact with the blades 72. h of the comb, thereby forming an electric connection whereby the alarm is given for the operator to stop the machine from running. The blades of the comb extend at an angle parallel to each other in the series, as shown in Figs. 2 and 3, so that the plane of rotation of the bowl will carry the piece of metal upon a pair of blades having a negative and positive pole connection with the battery. In Fig. 1 I show two of my devices as applied to the two bowls of the machine, so that in case the piece of stray metal would not leave the cloth to be embedded in the lower bowl it would be forced by the upper metal cylinder into the upper bowl.

My device is applicable to all machines which have the usual bowls made of non-conductormaterial, and any number of combs can be readily attached to the same. It frequently happens in this class of machines that a tack, pin, or other small piece of metal drops upon the cloth and gets embedded in the bowl. Before the machine can be stopped the cloth is made ragged or torn and if the cloth is of an expensive material results in a great loss. With my device I obviate this diffieulty to a great extent, for as soon as the stray particle of metal contacts with the blades at that moment the operator will be notified by the bell,

and at each revolution of the embedded metal the bell will continue to ring until the machine is stopped by the operator.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a cloth-finishing machine having one or more bowls made of non-conductor material, the combination, of a comb adapted to extend longitudinally with one of said bowls, said comb comprising a metallic supportingbar, two rubber strips secured upon said bar, one of said strips provided with a series of grooves'extending through at an angle from either edge thereof, a series of thin metallic blades secured within the grooves of said strip and projecting outwardly therefrom, a wire having its ends attached to each alternate blade of said comb so as to form multiples having positive and negative pole connections, an alarm, a battery having one pole wired to one of the pole connections, and its other pole wired to said alarm and thence to the other pole connection, substantially as shown and described.

2. In a cloth-finishing machine having one or more bowls made of non-conductor mate rial, the combination, of a metallic bar adapted to extend between the end frames of the machine, two strips made of non-conductor material secured upon said bar, a series of metallic blades secured between said strips and projecting at an angle therefrom, a wire connected to each alternate blade, a battery, a wire from said battery to a positive pole of said blade, an alarm actuated by said battery, a wire from said alarm to a negative pole of said blades, with brackets secured to the end frames of the machine adapted to support the blades and provided with means of adjustment to contact the projecting ends of the blades upon the periphery of the bowl, substantially as shown and described.

3. In a cloth-iinishing machine having one or more bowls made of non-conductor material, the combination, of a comb provided with a series of blades, a wire connecting each alternate blade of said series, a battery wired to one of said blades, an alarm actuated by said battery and wired to the next adjoining blade, each of said blades projecting at an angle to the plane of rotation of the bowl, so arranged that a piece of metal caught in the surface of the bowl will make a positive and negative pole connection upon the blades, as set forth.

Signed by me at Providence, Rhode Island, this 5th day of August, 1001.

JOHN l llANNON.

\Vitnesses:

WM. G. HOPKINS, EDWARD WALKER.

ICC

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