US2075484A

US2075484A - Top roll saddle

Info

Publication number: US2075484A
Application number: US16851A
Authority: US
Inventors: James L Truslow
Original assignee: Whitin Machine Works Inc
Current assignee: Whitin Machine Works Inc
Priority date: 1935-04-17
Filing date: 1935-04-17
Publication date: 1937-03-30
Anticipated expiration: 1954-03-30

Description

March 30, 1937.. J. 1.. TRUSLOW TOP ROLL SADDLE Filed April 17, 1955' INVENTOR. I

Patented Mar. 30, 1937 UNITED STATES PATENT OFFICE TOP ROLL SADDLE Application April 1'7, 1935, Serial No. 16,851

11 Claims.

This invention relates to weighting sytems for the drawing rolls of spinning and like textile machines and more particularly to the saddles for distributing pressure to the rolls. Its purposes, which are independent of each other although all accomplished in a single structure, include better facilities for cleanliness, better wearing alignment for the saddle bearings on their respective rolls and closer maintenance of the top roll spacing, as well as generally the improvement of this class of device.

Fig. 1 is a sectional end elevation of parts of a spinning frame showing the preferred form of the new saddle;

Fig. 2 is a sectional side elevation of the saddle;

Fig. 3 is a partial plan view of the saddle and Figs. 4 and 5 are transverse sections taken along the lines 4-4 and 55 in Fig. 2, respectively.

Fig. 1 shows parts of a conventional spinnin frame comprising the roller beam ill, the roll stand H, the lower front, intermediate and back drawing rolls l2, l3 and M, and the corresponding top rolls 3!}, 3i and 32, all mounted as usual and with the usual adjustments which will be recognized.

The improved saddle comprises a front bearing member or block 40, a back bearing member or under saddle 4i and a cover or top saddle 42. The top saddle 42 is preferably formed of sheet metal which will not readily tarnish, and is of inverted U-shape in cross section, as shown in Figs. 4 and 5. It extends from the foremost to the rearmost top roll and has an upper surface which is smooth or flat from end to end and devoid of any projections or protuberances such as might constitute obstructions to wiping off lint and dirt. All of its associated parts including the front bearing block 40 and the under saddle 4|, are disposed within the space between its depending side walls and are substantially covered and concealed by them, thereby producing a new and distinctive effect in this class of device, which'makes it particularly easy to clean and keep clean.

The front bearing member or block 49 which is crotched or grooved, as indicated at 43, to fit the front top roll is formed with an upper part or shank of reduced width as shown at 44 (Fig. 4). This shank fits loosely between the sides of the top saddle and is secured in place therein by a pivot in the form of a headed stud 45 which is inserted loosely through an opening in the upper wall of the top saddle and countersunk therein. By virtue of this connection the lock it? is free to swivel on an axis transverse to its roll, within the limits imposed by the side Walls, and can thus adjust itself relatively to the saddle when the latter is not strictly at a right angle to the roll thereby avoiding unsymmetrical wear. This feature is applicable with the same advantage to forms of top roll saddles other than that specifically shown herein.

The under saddle il also fits loosely inside of the top saddle 42, as shown in Fig. 5, and is secured therein by a pin and slot connection through which the weight of the top saddle is imparted to it. Preferably the under saddle is provided with the cross pin, marked 41, and the top saddle side walls with the slots, marked 48. By this means the top and under saddles are permanently united in relatively movable or pivotal relation not to be separated except by withdrawing the cross pin. The slots are long enough to accommodate normal roll adjustments. Furthermore the slots are so located or sloped with reference to the direction of pressure imparted by the stirrup as to have a camming action on the under saddle urging it forwardly for a purpose presently described.

The under saddle t! has a straight bearing portion 50 to engage the intermediate roll 3|, as shown in Fig. l, and a crotched bearing or recess 52 with opposed fiat bearing surfaces 53 by which it hooks over and bears on the back top roll, the contact being along two separated lines which are intended in the course of time to wear to the roll curvature.

The stirrup 56 is connected to the under side of the top saddle being hooked to a cross pin 55 secured to and extending between the depending side walls thereof. The stirrup attachment is thus within and below the top saddle but is easily detached when necessary. It can be connected to its Weight or spring by the conventional arrangement shown in the drawing or by any other.

It has been found important that the back top roll 32 be kept to a fixed axis of rotation more closely than results from the confinement of its gudgeons in the cap bar recesses, and in which such gudgeons normally fit rather loosely, and I accomplish this result by the camming action of the slots 68 above referred to, which urges the under saddle forwardly and thereby pulls the gudgeons into proper contact with the front walls of their recesses (indicated in dotted lines in Fig. 1) in the cap bars 24, thus ensuring a non-varying location for the top roll axis. This effect, as will be observed, occurs quite independently of tions to wiping,

5 material, I find it desirable to use a porous oil absorbent metal by which external application of oil is rendered substantially unnecessary.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is:--

1. Weighting means for drawing rolls comprising a top saddle of inverted U-section exposing a smooth upper surface devoid of obstrucin combination with an under saddle and a stirrup both connected only to the lower side of the top saddle and disposed between the side walls thereof and said under saddle and stirrup having no parts extending above said top saddle.

2. Weighting means for drawing rolls as set forth in claim 1, in which a front bearing block is mounted below said top saddle and is loosely connected thereto for angular movement in a plane substantially parallel to the upper surface of said top saddle.

3. Weighting means for drawing rolls as set forth in claim 1, in which the connection between the under saddle and the top saddle provides for movement of said under saddle relative to said top saddle in a vertical plane and also provides for sliding relative movement between said parts in a plane perpendicular to the axes of the drawing rolls.

4. Weighting means for drawing rolls comprising a top saddle, a front bearing member, a back bearing member and means to loosely but permanently secure said three members together, said securing means providing for substantial forward and rearward movement of said back member relative to said top saddle and for swivel movement of said front member relative to said top saddle in a plane substantially parallel to the plane of the axes of said drawing rolls, said 5 back bearing member applying pressure to the back and intermediate top rolls and said front bearing member applying pressure to the front top roll only.

5. Weighting means for drawing rolls comprising a top saddle, an under saddle and a stir rup, in combination with a bearing block pivotally attached to one end of the top saddle and having its pivotal axis substantially perpendicular to the axis of the roll on which such block bears.

6. Weighting means comprising a top roll saddle, a front bearing member, a back bearing member, and means loosely but permanently uniting said three members together and providing relative movement between said members, said means including a swivel connection between said top saddle and said front bearing member, the swivel axis being transverse to the roll axis, and means for limiting the swivelling motion.

7. Weighting means for drawing rolls comprising a top saddle and a stirrup, front and back bearing members having crotch engagement with their respective rolls and connected to said saddle, the connection between one of said members and the saddle including a cam surface 00- operating with a portion of the other member and sloped to draw said members toward each other under the pull of the-stirrup.

8. Weighting means for drawing rolls as set forth in claim 7, in which the front bearing member is loosely pivoted to said top saddle and has limited angular movement relative thereto in a plane substantially parallel to the upper surface of said top saddle.

9. Weighting means for drawing rolls comprising a top saddle having a crotch bearing on one of the rolls, a stirrup connected thereto, an under saddle for two other rolls and connection means between said saddles including a cam surface on one of them cooperating with a por tion of the other member and sloped to urge the under saddle toward said crotch bearing.

10. Weighting means for drawing rolls comprising a top saddle of inverted U-section having a bearing on a top roll, an under saddle pivotally and permanently connected to the top saddle, the connecting means comprising a cross pin on said under saddle and longitudinal slots for said pin in the depending side walls of said top saddle. I

11. Weighting means for drawing rolls comprising a top saddle, a front bearing member pivotally attached to one end of the top saddle, a stirrup connected to the lower side of the top saddle, a back bearing member, and means for permanently connecting the back bearing member to the top saddle, said connecting means including a cam surface sloped to urge the back bearing member towards the front bearing member.

JAMES L. TRUSLOW.