US2144989A

US2144989A - Warp beam

Info

Publication number: US2144989A
Application number: US130254A
Authority: US
Inventors: Mossberg Frank
Original assignee: Individual
Current assignee: Individual
Priority date: 1937-03-11
Filing date: 1937-03-11
Publication date: 1939-01-24
Anticipated expiration: 1956-01-24

Description

Jan. 24, 1939.

F. MOSSBERG I WARP BEAM Fild March 11, 1927 INVENTOR. 526649 A TTORNEYS.

Patented Jan. 24, 1939 UNITED STATES PATENT OFFICE Application March 11,

6 Claims.

This invention relates to a warp beam; and has for one of its objects the provision of an arrangement to facilitate the setting of the heads on the barrel the desired distance apart for the widths of warp desired and incidentally setting the heads with respect to the center of the beam.

Another object of the invention is the provision of a warp beam which will have thereon graduations positioned with reference to the center of the beam so that the heads may be set at correspondlng indications to denote the distance the heads are apart without resorting to a yard stick or any separate device to measure the distance between the heads and to at the same time eliminate the uncertainty of estimating the position of the heads with reference to the center of the beam.

Another object of the invention is the provision of graduations on the barrel of a warp beam with a slidable head which may be rotated to facilitate its sliding or'longitudinal movement along the barrel.

Another object of the invention is to support the edges of the slot in the beam against thebarrel collapsing when the head is clamped in position.

A further object of the invention is the provision of a warp beam having a warp securing slot which has tapered edges and with a slot support member in the slot so tied to the head as to move longitudinally with the head when slid along the barrel and yet such as to permit a rotation of the head on the barrel and a release of the tapered member from the slot upon release of the hub on the barrel to permit movement of the head.

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described, and particularly pointed out in the appended claims.

In the accompanying drawing:

Fig. 1 is an elevational view of the beam;

Fig. 2 is a sectional view through the head;

Fig. 3 is a sectional view on substantially lines 3-3 of Fig. 2;

Fig. 4 is a perspective view of the member in the slot to support the barrel against collapsing; and

Fig. 5 is a sectional view similar to Fig. 3 but showing a modified form of slot and supporting member therein.

In the use of warp beams withadjustable heads in order to place the heads on the beam a desired distance apart for weaving cloth of various widths, a separate graduated scale or stick is placed on the edges of the heads and these heads moved along the beam until they are the desired 1937, Serial No. 130,254

distance apart for the warp to be wound thereon. In such beams no means are provided for locating the heads with reference to the center and a like distance at either side thereof. Accordingly, the position of the heads with reference to the center is estimated by the judgement of the eye of the mechanic setting them. Devices for more accurately setting the heads have been suggested in the trade, such as appliances to take the place of the yard stick, but these have been rejected, and in order to eliminate the use of any such attachments or yard sticks, I have provided graduations adjacent the ends of each beam which are accurately positioned with reference to the center of the beam; and I have so arranged the marking on these graduations that when the heads are set upon certain corresponding numbers, such for instance as 30, at each end, one will definitely know that the face of the heads are thirty inches apart and each head is exactly fifteen inches from the center of the beam. Also, in order to adjust the heads along smooth beams or non-threaded beams instead of requiring that the heads be slid longitudinally of the barrel, I have provided for a rotary motion to permit easier movement to a desired designated position, and I have also arranged that there be a support in the warp securing slot, if such be the form of the beam, so that there will be no collapsing of the slot when the hub of the headis contracted to bind the same on the barrel; and the following is a more detailed description of the present em bodiment of this invention, illustrating the preferred means by which these advantageous results may be accomplished:

With reference to the drawing, designates the barrel of the warp beam with the yarn securing slot l l therein, which extends longitudinally lengthwise of the beam, the same being of the all steel type of construction having a tubular barrel with a hollow center and friction drums l2 at either end from which trunnions l3 extend for mounting it in position in the loom.

The heads of the beam are designated M and are adjustably mounted on the barrel it. Each head consists of a flange or face portion hav ing an opening to closely fit the barrel l0. A hub l6 having a flange portion I! is secured to the face portion l5 by any suitable means to permit its contraction and expansion, one suitable means being illustrated in my application filed of even date herewith and bearing Serial No. 130,255, now Patent No. 2,126,970.

This hub has ears I8 which are expanded or contracted by suitable means such as by a bolt I9. The hub and flange or face portion of the head at their juncture are grooved as at 20 as shown perhaps best in Fig. 2,. which groove in the head extends annularly about the barrel. A supporting member 2I is located in the groove I I with the main portion 22 thereof setting down into the groove sufficiently so as to be below the outer cylindrical surface of the barrel. This member is located within the hub portion I6 of the head, which may rotate about the barrel and this body portion of the supporting member freely. A horn 23 on the supporting member extends into the groove 20 whereby as longitudinal movement of the head is effected this supporting member will be drawn along its slot or moved with the head, although rotative movement of the head is permitted. A second horn 24 may also be provided to extend outwardly beyond the hub if the same is desired. This member 2| serves to support the edges of the slot II so that when the hub is contracted there will be no undue contraction of the barrel by movement of the edges of the slot together.

The slot or groove II may be of two different forms such as I have illustrated in Figs. 3 and 5. In Fig. 5 the opposite side Walls of the groove are parallel as at 25 and the bottom wall 26 is at right angles to these walls 25. In Fig. 3 the opposite side walls 21 of the slot converge inwardly of the slot and the supporting member 2I has its opposite walls 28 also inclined and conforming to the inclination of the walls 21 toward each other.

Where the walls and supporting member are inclined in order that there be no jamming of the walls and member, I will provide the inclination on an angle which has been found to be a non-sticking taper as is well known in the machine arts, and I will also provide some sort of a resilient means 29 to lift the supporting member outwardly to free it from the walls so that sliding movement of the head will not be deterred. The resilient means here illustrated, although it may be of any form, is shown as a leaf spring riveted as at 30 or otherwise suitably secured to the supporting member so as to move with it as it moves along the slot.

The foregoing description is directed solely towards the construction illustrated, but I desire it to be understood that I reserve the privilege of resorting to all the mechanical changes to which the device is susceptible, the invention being defined and limited only by the terms of the appended claims.

I claim:

1. In a warp beam, a cylindrical barrel having a slot extending lengthwise thereof, an adjustable head on said barrel, a member in said slot having a portion along its length inwardly from the cylindrical surface of the barrel to prevent movement of the edges of the slot toward each other upon clamping of the head thereto, and

means to connect said head and member com-.

prising a projection on one part and an annular recess in the other to cause said member and head to move together longitudinally of the barrel during adjustment and yet permit said head to rotate about said barrel without withhdrawing said member from the slot in said barrel.

2. In a warp beam, a barrel having a slot extending lengthwise thereof, an adjustable head on said barrel, a member in said slot to prevent movement of the edges of the slot toward each other upon clamping of the head thereto, said head being rotatable on the barrel over said member and having an annular groove and a horn on said member in said groove to cause the member to move in its slot with the head as moved along said barrel.

3. In a Warp beam, a barrel having a slot extending lengthwise thereof, an adjustable head on said barrel, having a flange and hub secured thereto, a member having its body portion in said slot and within the cylindrical surface of the barrel to prevent movement of the edges of the slot toward each other upon clamping of the head thereto, the hub of the head being rotatable on said barrel and located over said member and provided with an annular groove and a horn on said member extending into said groove whereby said head may rotate on the barrel over the member and yet move the member longitudinally of the barrel.

4. In a warp beam, a cylindrical barrel having a slot extending lengthwise thereof, an adjustable head on said barrel, 2. member in said slot having a portion along its length inwardly from the cylindrical surface of the barrel to prevent movement of the edges of the slot toward each other upon clamping of the head thereto, and means to connect said head and member comprising a projection on one part and an annular recess in the other to cause said member and head to move together longitudinally of the barrel during adjustment and yet permit said head to rotate about said barrel without withdrawing said member from the slot in said barrel, and resilient means to urge the member outwardly with respect to said slot.

5. In a warp beam, a barrel, a thread fastening slot, extending lengthwise thereof, and having opposite inwardly converging side Walls, a tapered member in said slot having inclined side walls conforming to the inclination of the side walls of said slot, a head on said barrel located over said member and rotatable with reference to said barrel and member, and means to connect said member and head for movement in unison longitudinally of the barrel.

6. In a warp beam, a barrel, a thread fastening slot extending lengthwise thereof and having opposite inwardly converging side walls, .a tapered member in said slot having inclined side walls conforming to the inclination of the side walls of said slot, a head on said barrel located over said member and rotatable with reference to said barrel, a spring to urge the member outwardly with respect to said slot and member, and

means to connect said member and head for movement in unison longitudinally of the barrel.

FRANK MOSSBERG.