US2437342A

US2437342A - Drop box picker

Info

Publication number: US2437342A
Application number: US563248A
Authority: US
Inventors: Henry M Bacon
Original assignee: Dayton Rubber Co
Current assignee: Dayton Rubber Co
Priority date: 1944-11-13
Filing date: 1944-11-13
Publication date: 1948-03-09
Anticipated expiration: 1965-03-09

Description

March 9,1948. H. M. BACON I 2,437,342

DROP BOX PIGKER Filed NOV. 13, 1944 2'SheetSSheet l VENTOR HEN M. BA CON ATTORNEYS March 9, 1948. H. fin. BACON DROP BOX PicKER 2 Sheets-Sheet 2 Filed Nov. 13, 1944 INVENTOR HENRY muss BACON BY 4. L; ALL;

ATTORNEYS Patented Mar. 9, 1948 naor BOX rrcx'aa Henry M. Bacon, Dayton, Ohio, alaignor to The Dayton Rubber Company, a corporation oi Ohio Application November 13, 1944, Serial No. 563,248

This invention relates to loom pickers and more I particularly to drop box pickers.

' Heretofore, pickers have been fabricated of rubber compositions or rubberized fabrics and vulcanized so as to yield a hard material in order to give them a sufficiently high resistance to the impacts of the picker stick. Pickers, however, which showed satisfactory wear resistance, proved to be too rough and to cause a relatively fast wear of the picker sticks. It has been tried to make the surfaces which are contacted by the .stick of softer material, but such pickers had a relatively short service life. Another disadvantage of previous pickers is that due to the various thicknesses of the diii'erent parts of the picker, the pressure exerted during curing causes the less bulky parts to fiow to the more bulky areas, which results in buckling of the fabric and, thus in a less resistable picker. Besides, different curing times are theoretically required for the zones of various thicknesses so that only part oi the picker can be subjected to optimum curing times. i

It is an object of the present invention to provide pickers which are free from all these disadvantages. The pickers of my invention are formed of two separate parts, namely, the web or body proper and the reinforcing means. Besides, in the pickers of my invention, both the rod hole and the shuttle head are provided with a bearing of highly resistant material, whereas the shuttle head itself is made, of relatively soft material so as toreduce the wear of the picker stick to a minimum.

6 Claims. (01. 139-100) 2 showing still another modification of my invention.

Figure 9 is a fractional cross-sectional view of a modification of a shuttle head.

Referring to the drawings in detail, and in particular to Figures 1 and 2, ii! is a web or body and I! a hood of a picker having a picker stick hole II for a picker stick l2, and a bore I! for a picker rod II. The picker head 15 has a cavity IS on one side (Figure 5), the so-cailed shuttle head, which is adapted to receive a shuttle ll.

The body of the picker is made of rubberized fabric. The rod hole It is lined with a bearing i8 which is made of some kind of hard, but not brittle material, e. 2. glass, wire or cord. Around the rod carrying part of the web there is arranged a hood H, which is made of the same rubberized material as the web of the cker. The

web andthe hood preferably are separately molded and then assembled before vulcanization. This way a one-part picker unit is obtained from the original two parts. The picker head is of annular cylindrical shape. Its bore contains a core 20 of relatively soft material, e. g. rubber composition which is surrounded and carried by a bearing It. For this bearing the same materials are satisfactory as are described above in con nection with the bearing l8.

By using a picker according to the invention, the picker stick contacts surfaces only of relatively soft material whereby its service life is considerably increased. Yet the picker itself is made of materials resistant and resilient enough so as to be of great durability itself. Since the The invention will b m fully understood picker, due to the arrangement of reinforcing .i'rom the following description taken in connection with the accompanying drawings, in which- Figure 1 is a perspective view of a picker according to my invention.

Figure 2 is a cross-sectional diagrammatic view along the lines 2--2 of Figure 1.

Figure 3 is a cross-sectional diagrammatic view along the line 3-3 of Figure 2.

Figure 4 is a cross-sectional diagrammatic view corresponding to that of Figure 3 but showing a modification of my invention.

Figure 5 is a cross-sectional diagrammatic view along line 5-5 of Figure 2.

Figure 6 is a cross-sectional diagrammatic view similar to Figure 2, but showing another modification of my invention. I

Fi ure '7 is a cross-sectional diagrammatic view showing another modification of my invention.

means, is of practically equal thickness all around the points of contact with the picker stick, the impact exerted by the picker stick tions of the picker equally.

If desired, the hood and the web may, in addition to the bond obtained by vulcanization, be secured together by

bolts

22 and 23, as shown in Figure 4.

In Figure 6 a modification of my invention is illustrated in which the web is not strengthened .by a hood but by added bulk pieces vulcanized to the web. In this illustration, 24 is the web with a head 25 having a bearin 26 and a rubber core 21. 28 is a rod hole, and 29 and 30 are strengthening bulk pieces vulcanized to the web. It will be understood that by this modification about the same advantages are obtained as by the modifications illustrated in the previous figures.

In the embodiment of Figure '7 the web 3| and Figure 8 is a cross-sectional diagrammatic view the hood 32 are not vulcanized to each other. In

affects all secpieces 35 and 36 are built into and vulcanized to the web 3| in order to strengthen the surfaces contacted by the picker stick.

It will be understood that rubber composition is not the only material suitable for the shuttle core, but that other soft and resilient materials, for instance a gum-bond bias fabric or a fiberreinforced rubber composition may be used with equal satisfaction. One such modification is illustrated in Figure 9. There, material known to the art by the name of Stiflex, a rubber composition reinforced by substantially parallel fibers, is used for the shuttle core.

It will be understood that rubberized fabric is not the only material suitable for the body of the picker, but that other materials, as for instance leather, plastics, etc. may be used with equal satisfaction and without departing from the invention,

. Instead of providing the picker head with only one shuttle head both sides may have a shuttle head so that the shuttle can be received on either side of the picker head.

It will also be understood that while there have been described certain specific embodiments of my invention, it is not intended thereby to have this invention specific details of materials, arrangement of parts and conditions set forth in the specification limited to or circumscribed by the- 4 said circular rod hole, a head with at least one shuttle head and a picker stick hole with arcuate stick contacting surfaces formed by said web and said reinforcing means, said reinforcing means consisting of a hood secured to said web around said picker stick hole.

4. In a textile loom picker, the combination of a web and reinforcing means rigidly secured together, said picker being provided with a circular rod hole, a head with at least one shuttle head and a picker stick hole with arcuate stick contacting surfaces formed by said web and said reinforcing means, said web and said reinforcing means being formed of a plurality of rubberized fabric layers parallelly arranged along the transverse axis of said picker, all of said fabric layers of said web extending to said circular hole.

5. In a textile loom picker, the combination of a web and'reinforcing means vulcanized together, said picker being provided with a circular rod hole, a head'with at least one shuttle head and a picker stick hole with arcuate stick contacting surfaces formed by said web and said reinforcing means, said web and said reinforcing means being formed of a plurality of rubberized fabric layers parallelly arranged along the transverse axis of said picker, all of said fabric layers of said web extending to said circular hole. 4

6. In a textile loom picker, the combination of a web and reinforcing means rigidly secured together, said picker being provided with a circular rod hole, a head with at least one shuttle head or illustrated in the drawings in view of the fact that this invention is susceptible to many and varied modifications without departing from the spirit of this disclosure and the scope of the appended claims.

Having thus fully set forth and described my invention, what I claim asnew and desire to secure by Letters Patent is:

1. In a textile loom picker made of rubberized fabric layers, the combination of a web and reinforcing means rigidly secured together, said picker being provided with a circular rod hole and all of said fabric layers of said web extending to said circTilar rod hole, a head with at least one shuttle head and a picker stick hole with arcuate stick contacting surfaces formed by said web and 1 said reinforcing means.

2. In a textile loom picker made of rubberized fabric layers, the combination of a web and reinforcing means vulcanized together, said picker being provided with a circular rod hole and all of said fabric layers of said web extending to said circular rod hole, a head with at least one shuttle head and a picker stick hole with arcuate stick contacting surfaces formed by said web and said reinforcing means.

3. In a textile loom picker made of rubberized fabric layers, the combination of a web and re inforcing means rigidly secured together, said picker being provided with a circular rod hole and all of said fabric layers of said web extending to and a picker stick hole with arcuate stick contacting surfaces formed by said web and said reinforcing means, said reinforcing means consisting of a hood secured to said web around said picker stick hole and said web and said reinforcing means being formed of a plurality of rubberized fabric layers parallelly arranged along the transverse axis of said picker, all of said fabric layers of said web extending to said circular hole.

HENRY M. BACON.

anraannoas c'rran The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 143,218 Boom Sept. 30, 1873 1,387,913 Swan. Aug. 16, 1921 1,416,274 Fredericks May 16, 1922 1,852,824 Schroeder Apr. 5, 1932 776,972 Wardwell Dec. 6, 1904 1,989,910 Brahs Feb. 5, 1935 2,389,952 Brown Nov. 27, 1945 2,245,140 Brahs June 10, 1941 FOREIGN PATENTS Number ,Country Date 6,585 Great Britain 1887 10,185 Great Britain 1909 13,847 Great Britain 1911 16,628 Australia July 24, 1929