US609574A - Island - Google Patents

Description

Patnted Aug. 23, |898.

F. I. DANA TENTERING MACHINE.

(Application ma vmy 14, 1897.)

3 Sheets-Sheet I.

(No Model.)

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No. 609,574. Parented Aug. 23, |898. F. I. DANA.

TENTERING MACHINE.

(Application led May 14, 1897.) (No Model.)

v 3 Sheets-Sheet 2.

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Nu. 609,574. Fatented Aug. 23, |898.. F. DANA.

TENTERING MACHINE.

(Application Bled May 14, 1897.) 1 (No Model.) 3 Sheets-Sheet 31.

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Nrn *pit/Virusk APATENT FREDERICK I. DANA, OF PROVIDENCE, RHODE ISLAND, `ASSIGrNOR TO THE THOMAS PHILLIPS COMPANY, OFSAME PLACE.

SPECIFICATION forming part of Letters Patent No. 609,574, dated August 23, 1898.

Application nea May 14., 1897.

To @ZZ whom t may concern:

Be it known that I, FREDERICK I. DANA, of the city and county of Providence, in the State of Rhode Island, have invented certain new and useful Improvements in Tentering- Machines; and I do hereby declare the following specication, taken in connection with the accompanyingdrawings, forming a part of the same, to be afull, clear, and exact description thereof. p

The present invention relates to machines for tentering cloth in which travelingchains provided with clamps or pins to engage and carry the cloth are caused to travel along guide-rails which are given a reciprocating movement as the chains feed the cloth through the machine.

A feature of the invention relates to a mechanism for reciprocating the guide-rails which shall give to said rails the same motion on both their forward and backward strokes, so that a runiform finish will be given to the cloth, which is not the case when the motion of the rails in one direction varies from the motion in the other direction. Vhile it is preferred to connect the mechanism forming this feature of the invention to the rails inde-` pendent of theconveyer-operating mechan ism, it will be understood that, so far as this feature of the invention is concerned, the counection to the rails may be made through the conveyer-operating mechanism.

The invention also includes the further feature hereinafter described, and set forth in the claims.

Referring to the drawings, Figure 1 is a side elevation of so much of a tentering-machine as is necessary to show the application of the present invention. Fig. 2 is a plan view of the same,A partly in section. Fig. 3 is an end elevation of the same, partly in section. Fig. 4 is a sectional viewon `line 4 4, Fig. 1. Figs. 5 and 6 are views showing a modification to be described. Fig. 7 is aview of a further modification.

The guide-rails l extend longitudinally of the machine and are provided with suitable guides for the conveying devices andare pivoted on blocks 2, adjustably mounted on transverse frames or supports 3, said blocks being adjusted by means of the screw-rods 4 srie No. 636,588. No model.)

'in the usual manner. The frames 3, varying in number according to-thc length of the machine, are pivoted upon standards 5, as shown at the right in Fig. 1. The guide-rails 1 carry the sprocket-Wheels 6, around which the conveying-chains pass and which serve to operate said chains. The shafts on which the sprocket-wheels 6 are secured pass through shaft 9 is provided with rollers 14 at its ends, which rest upon the supports 15 and serve tol `aid in supporting the said shaft.

A bevelgear 16 isy secured to shaft 9 and is engaged anddriven by a bevel-gear 17, secured to the vertical shaft 13. A bevel-gear 18 is secured to the shaft 13'and is engaged by a bevel-gear 19, secured to the main driving-shaft 20, which carries a pulley 21 upon its outer end, Vto which power is applied.

The mechanism for reciprocating the guiderails 1 instead of being connected to the rails through the transverse shaft 9, as has heretofore been customary, is connected with the rails independent of said shaft, so that said shaft is relieved of the strain heretofore put upon it, withrthe result that there is no liability of springing said shaft, and thus interferingowith the proper action of the mechanism for driving the conveying-chains, and with the further result that the `movement of 'the guide-rails is not dependent upon the proper 4 action ofthe mechanism for driving the con veying-chains. In Figs. 1, 2, and 4 is shown one manner of thus connecting the mechanism for reciprocating the guide-rails, and in said figures is also shown the preferredform ofreciprocating mechanism, which in itself forms one feature of the present improvements and is not dependent upon the manner of connecting the sameto the rails for its novelty. In said figures the reciprocation of 'the guide-rails is effected as follows: An arm 22 is secured to one of the cross frames or supports 3, preferably to that support which is IOO located at or near the center of the machine. The arm 22 is connected, by means of a link 23, to a cross-head 24, sliding on guides 25, mounted upon the standard 26. The crosshead 24 is provided with a slot 27, and a crankpin 28, secured to a disk 29, works in said slot and serves to reciprocate the cross-head 24. The disk 29 is provided with a series of holes 30,l arranged at varying distances from the center of said disk, and the length of the reciprocation imparted to the cross-head and to the rails may be varied by securing the crankpin 28 in different holes. The disk 29 is secured to a shaft 31, mounted in bearings in standard 26 and having secured thereon a bevel-gear 32, which is engaged and driven by a bevel-gear 33 on a shaft 34. The shaft 34 is driven from the main driving-shaft 20 through the shaft 35 and gears 36. The shaft 20 has secured thereto two gears 37 38, of different diameters, which engage gears 39 40, respectively, loosely mounted on shaft 35. The gears 39 40 are provided with clutch-faces adapted to be engaged by the clutches 41 42, respectively, splined to the shaft 35 and operated by the levers 43 44. By throwing the clutch 42 into engagement and clutch 41 out of engagement the shaft 35 will be driven by the pair of gears 38 40 and the guide-rails will make a certain number of reciprocations for a given length of cloth fed through the machine, and by throwing the clutch 41 in and clutch 42 out the number of reciprocations for the same length of cloth may be varied.

Instead of connecting the mechanism for reciprocating the guide rails to said rails through the medium of one'of the transverse supports said mechanism may be and preferably is connected directly to the guide-rails, and in Figs. 5 and 6 is shown the preferred manner of thus connecting one form of such mechanism. A transverse bar or rod 45 is pivoted to the rails 1 by means of blocks 46,

secured to said bar, and provided with studs 47, which project through bearings 48 in the brackets 49, secured to the rails 1. Collars 50 are secured to the upper ends of the studs 47 and serve to hold the studs in the bearings. The bar 45 is provided with two arms 51, which are connected by means of the links 52 with a cross-head 53, mounted on guides 54.

The cross-head 53 is provided with a slot 55, in which works a crank 56, secured to a crank-disk 57, said disk being driven from the main driving-shaft through suitable gearing and shafting. As the cross-head is reciprocated the arms 51 and bar 45 oscillate aboutan axis midway between the rails 1, and the rails are reciprocated. In order to allow the transverse adjustment of the rails, it is preferred to fork the arm 51 and secure the forked ends of the arms to the bar upon opposite sides of the block 46. While it is preferred to use two arms 51, both connected to the cross-head 53, as with this construction the power is applied directly to both of the rails and a more even motion is imparted thereto and the strain upon other parts of the machine lessened, yet it will be understood that one arm 51 may be dispensed with, if desired, and the rails reciprocated by the use of a single arm.

In Fig. 7 is shown another manner of connecting the reciprocating mechanism directly to the rails. In this construction one or both of the rails is provided with a pivot 58, which is engaged by a slot inthe end of a lever 59, pivoted at and connected by means of a link 61 with a cross-head 62. The cross-head 62 is mounted upon guides 63 and is provided with a slot 64. A crank-pin 65, secured to a disk 66, works in the slot 64 and reciprocates the crosshead 62, said disk being driven from a shaft 67 through the gears 68. The shaft 67 is driven from the main drivingshaft in the manner described with reference to shaft 34 of Figs. 1, 2, and 4.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. In a tentering-machine, the combination with guide-rails for the conveying devices, of mechanism for operating the conveying devices, a cross-head provided with a slot, a crank working in said slot, and connections between said cross-head and said guide-rails whereby said guide rails are reciprocated from said cross head, substantially as described.

2. In a tentering-machine the'combination with guide-rails for the conveying devices of mechanism for operating the conveying devices,a cross-head provided with a slot,a crank working in said slot,an d connections from said cross-head to each of said guide-rails.

3. In a centering-machine the combination with guide-rails for the conveying devices, of mechanism for operating th`e conveying devices, a cross-head provided with a slot,a crank working in said slot, a transverse bar pivoted to said rails, and connections between Veach 'end of said bar and said cross-head.

4. In a tentering-machine,the combination with guide-rails for the conveying devices, of mechanism for operating the conveying devices,a cross-head provided with a slot,a crank workin g in said slot, an arm oscillating about van axis and connected with the rails, and a link connecting said arm and cross-head, substantially as described.

5. In a tentering-machine,the combination with guide-rails for the conveying devices, of mechanism for operating the conveying devices, a cross-head provided with a slot,a crank working in said slot, a transverse bar pivoted to said guide-rails and provided with an arm, and a link connecting said arm and crosshead, substantially as described.

6. In a tentering-machine, the combination with guide-rails for the conveying devices, of mechanism for operating the conveying devices, a cross-head provided with a slot, a crank workingin said slot, a transverse bar-pivoted IOC IIC

8. In a tentering-machine, the combination Wi th the guide-rails for the conveying devices, of mechanism for reciprocating said guiderails, mechanism for operating the conveying devices, a driving-shaft connected With said latter mechanism, a second shaft connected with the guide-rail-operating mechanism, a series of pairs of gears upon said shafts, and

means for rendering any one of said pairs ofV gears operative, substantially asdescribed.

FREDERICK I. DANA.

Witnesses:

IRAI L. FISH, R. A. BATES.

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