US1816559A

US1816559A - Conveyer belt

Info

Publication number: US1816559A
Application number: US207844A
Authority: US
Inventors: John C Anderson
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-07-23
Filing date: 1927-07-23
Publication date: 1931-07-28
Anticipated expiration: 1948-07-28

Description

July 28, 1931. J. C.ANDER$ON 1,816,559

EEEEEEEEEE LT Patented July 28, 1931 I PATENT." OFFICE JOHN C. ANDERSON, OF KEYPOBT, NEW JERSEY coNvEYEn BELT Application filed July 23, 1927. Serial No. 207,844.

My invention relates to conveyers, and more particularly to those of the woven wire type, such as are formed by helically interlaced strands of wire that are disposed transversely of the longitudinal axis of the belt, as shown, for example, in Patent No. 1,583,046, issued to H. W. Ingle on May 4, 1926. v

In this type of conveyer belt, the helices produce a diagonally ribbed surface which tends to cause the belt to creep laterally when passing around rollers or over supporting surfaces. Heretofore, efforts have been made to overcome or counter-act this tendency of the belt to creep in one lateral direction, as by dividing the belt into sections which are placed end to end to form the belt, the strands of certain sections being in-the form of left hand helices and the strands of other sections being in the form of right hand helices, but it will be seen that in such structures there is tendency to ilisplacement of the belt laterally on z ig-zag mes.

- Stated broadly, my invention contemplates the provision of belt sections that aredivided on a line extending longi-' tudinally of the belt, and has for one of its objects the provision of a belt of the character referred to wherein the form of connection is such as to render the belt readily flexible in' passing around pulleys or rolls even of relatively small diameter, and wherein there is no substantial amount of driving strain imposed upon the connection between the belt sections. 4

Another object of my invention is to simplify and improve generally belt structures of the typereferred to. I

Some of the forms which my invention may take are shown in the accompanying drawings, wherein Figure 1 is adiagrammatic view that is representative of a conveyer'belt made of two longitudinally-divided sections that have right and left hand weaves, respectively, and showing the tendency of the sections to creep in diagonally-opposite directions Fig. 2 is a View showing belt sections connected by a flexible cable; V F ig'. 3 is a view showing a manner in which the sections may be joined without the necessity of employing an additional connecting member;

Fig. 4 shows belt sections connected by a helical strand;

Fig. 5 shows sections held together by ring-like holding members or links, and

Fig. 6 is a view showing belt sections held in cooperative relation by a chain.

In assembling the

mesh structures

6 and 7 to form a conveyer belt, I- prefer to so place them that their ribbed surfaces which or connecting member 8, so thatthe belt will lie flat. If the diagonal lines converged with respect to the path of travel of the belt, as in case the belt were driven in the direction opposite to that indicated by the arrow in Fig. 1, the sections would tend to move toward the longitudinal center line of the belt and exert a compressive force at their line of juncture, thereby causing the belt to bulge at its mid portion, which would not only create an undesirable distortion of the belt, but result in upsetting or displacement of the glassware or other'articles conve ed thereby.

he connecting member 8, Fig. 2, is shown as a flexible cable, so that it will bendreadily in passing around rollers that are employed for driving and guiding the belt. The ends of pairs of strands 9 and 10, for instance, are 'bent around the cable and preferably have pivotal movement thereon, thus increasing the flexibility of the belt. v In Fig. 3, the strands of adjacent belt sections are directly connected to one, another, b so bending the ends of adjacent strands of the respective belt sections that they have flexible interlocking connection m with one another, as shown-at 11 and 12., In

this case, as in the structure of Fig.1 2, the belt may bend readily in passing around a roller, and there is no great driving strainv imposed upon the connecting means.

Referring to Fig. 4, I show a structure that is composed of belt sections wherein the ends of adjacent strands of each section.

are bent into interlocking engagement, as indicated at 13 and 14; The belt sections are secured by a spirally-extending wire or cable 15 that passes behind the interlocking strand ends at 13 and 1 1. In this arrangement, as in the case of Fig. 2, the connecting member 15 will flex in passing around rollers.

Referring to 5, I show belt sections whose strand ends are interlocked in a manner similar to that shown in Fig. 4, as indicated at the

points

16 and 17 In this form of device, the belt sections are held together by rings or links 18 that extend around various strands of one belt section and adjacent strands of the other belt section. This arrangement permits flexureof the belt sections without binding of the parts upon one another, and nevertheless eflectively .:holds them against spreading apart.

In Fig. 6, I show a chain composed of links 19 and 20 for connecting the belt sections. The strand ends of the belt sections .are bent around the horizontally-disposed links 19, as indicated at 21 and 22.

In the case of Figs. 2, 5 and6, the mems bers 8, 18 and 20 respectively, are of such diameter that there will be neither a depres sion nor a rib-like projection along the connecting line of the belt sections. For instance, the diameter ,of the cable 8 is sufficiently small that the bent ends of the strands 8 and '9 will not project above the upper plane ofthe

belt sections

6 and 7, while the upper surfaces of the

links

18 and 20 lie in approximately the uppermost plane of the belt sections withwhich they are associated.

In the case of Fig. 3, the joints 11 and 12 are so formed that they .will not project abovethe upper plane of the belt, while in Fig. 4, the connecting strand 15 is disposed avoiding t in substantially the plane of the other strands. 1

By' avoiding a ridge or a depression along the line of juncture of the belt sections, a more nearly level surface is provided for receiving glassware or other articles, thus e tipping over of the same.

In the case of each embodiment of my invention disclosed herein, it is to be noted that each strand of helical wire forms a substantialicontinuation of a strand of the adjacent'section of the belt, the two aligned strands being in efiect, one transverse strand having one-half 'formed with a right-hand twist and the other half formed with a lefthand twist. Thus, there is no relative movement between the aligned strands, as the belt is flexed in passing around the rolls, By this construction wear at the connection is minimized and any tendency toward dis tortion or creeping of the belt, due to relative movement of two connected strands which are out of alignment transversely of Y the belt, is eliminate g The term helical, as applied to the wires described herein and as that term is used in the claims, is not to be construed as l iinwires between adjacent edges of said sec-' tions.

2. Conveyer belt structure comprising a pair of longitudinally-extending sections each composed of wire fabric formed of helical strands, the strands in one section being wound in a direction opposite to the strands of the other section, and an intermediate connecting member about which the strand ends at adjacent edges of the sec tionsare bent. I v

3. Conveyer belt structure comprising a pair of longitudinally extending sections each composed bf helically wound wires extending transversely of the belt and each having a surface diagonallv ribbed along lines at angles to the ribs or the other, an

link members each encircling a part of the fabric of each section and oining the adjacent edges of the sections.

4. Conveyer belt structure comprising pair of longitudinally extendin sections each composed of wire fabric helical strands, "xtending transversely of the belt, the strands in each section being ormed of wound in a direction opposite to the strands of the other section, and an intermediate connecting member joining the adjacent edges of the sections and comprising links engaging the strands of each section, and

other links connecting the first named links.

5. Helically' wound wire conveyer belt structure comprising a pair of longitudinally extending sections each composed of helically wound wires extendin transversely of the belt and connecting e ements joining said sections, the adjacent connecting elements being joined to each other.

6. Helically wound wire conveyer belt structure comprising longitudinally extending sections each composed of helically wound wires extending transversely of the belt, and means for joining said sections comprising a flexible connecting element.

7. Helically wound wire conveyer belt structure comprising a plurality of longitudinally extending sections each composed of helically wound wires extending transverselyof the belt, and connecting means for the said sections comprising an element extending longitudinally of the belt.

8. Helically wound wire conveyer belt structure comprising a plurality of longitudinally extending sections each composed of helic ally wound wires extending transversely of the belt, and means for joining said sections comprising a plurality of links independent of said helically wound wires fastened to the adjacent edges of said sections.

9. Helically wound wire conveyer belt structure comprising a plurality of longitudinally extending sections each composed of helically wound wires extending transversely of the belt, and means for joining the said sections comprising a chain joined to the adjacent edges of the sections.

10. A wire fabric composed of two longitudinally extending sections, each section composed of helical members extending crosswise of the section and interlocking, the members of one section being reversely arranged to those of the other section, with the members of one section arranged in pairs in alignment with pairs of the other section, and means for uniting the inner ends of each pair of members of one section with the inner ends of each pair of members of the other section.

11. Co'nveyer belt structure comprising a pair of longitudinally extending sections, each composed of wire fabric formed of helical strands, the strands in one section being wound in a direction opposite to the strands of the other section, with the helical strand of one section in transverse alignment with those of the other section, and means for connecting the sections together.

12. A woven wire conveyer comprising a series of interwoven helical wires extending transversely of theconveyer, the wires having a right hand twist at one sideof the longitudinal median line of the conveyer and a left hand twist at the other side of such median line, the axes of the helixes of the opposite right and left wires being in line and the inner ends of the aligned wires being connected with each other.

13. Conrcyer belt structure comprising a plurality of pairs of helical strands, each pair comprising one strand of right hand twist and one strand of left hand twist the axes of the helixes being aligned transversely of the belt, one end of each strand being connected with an end of the strand that is aligned therewith, and each pair of strands being interwoven with the adjacent pairs of strands. Y v

14. A wire fabric composed of two longitudinally extending'sections, each section being .composed of helical members extend-. ing crosswise of the section and interlocking, the members of one section being reversely arranged to those of the other section, and a spiral wire connection interwoven between said sections, whereby said in the other section, and another of said links engaging a member forming one of another pair in said other section.

Signed at Keyport, N. J., this 18th da of July 1927.

JOHN C. ANDERSON.