Claims:We claim:
1. A device for holding smaller diameter pipes comprising:
- a top plate (101) positioned in horizontal pipe sizing band saw machine supporting legs (120) removable attached by Allen bolts (102), the top plate (101) being provided with a one-part hole (103) for centre positioning of a connecting tube (110), the top plate (101) being provided at top of a longitudinal hole (103) so that two angle plates (104) are permanently welded, the top plate (101) having two ends which are provided to insert the Allen bolts (102).
- at least one guiding nut (106) inserted in between the two angle plates (104) for operating a lead screw (105) up down movement, one end of the lead screw (105) is provided with a step and the bottom of a step being provided with one circlip groove (126);
- a bearing (107) fitted in the step of the lead screw (105) and an outer circlip (109) is inserted in the circlip groove (126);
- an internal step provided in the top of the connecting tube (110) and one internal circlip groove (127) formed in the top of the internal step, the bearing fitted lead screw (105) being housed in the internal step of the connecting tube (110) and an one inner circlip (108) being inserted in the internal circlip groove (127);
- at least one rectangle plate (111) permanently welded in the bottom of the connecting tube (110);
- a whole unit (128) consisting of the connecting tube (110) with the bearing (107) housed the lead screw (105) being screwed in the bottom of the top plate (101) through the longitudinal hole (103) and the guiding nut (106), after screwing the whole unit (128), one or more locking nuts (121) are fitted in the top end of the lead screw (101); and
- a scalloped plate assembly (113) having at least two scalloped plates, the first one being a front scalloped plate (114) and the second one being a rear scalloped plate (115).

2. The device as claimed in claim 1, wherein a connecting plate (116) to connect the first and second scalloped plates (114,115) at the top.

3. The device as claimed in claim 1, wherein the bottom of the two scalloped plates (114, 115) being provided with the four curving profile (118) to suit the smaller diameter pipes, the smaller diameter pipe holding in a horizontal pipe sizing band saw machine

4. The device as claimed in claim 3, wherein on depending upon the size of the pipes, the curve size also being changed, the range the pipes having outside diameter 80mm to 150mm.

5. The device as claimed in claim 3, wherein the first and the last curved profile (118) being made with a keyway (119) to insert measuring tape to sizing of the pipes (123) to the required length.

6. The device as claimed in claim 1, wherein the scalloped plate assembly (113) and the whole unit (128) are connected by providing the two holes in the connecting plate (116) and fastened by the Allen bolts (122).

7. The device as claimed in claim 6, wherein at the bottom of the connecting plate (116), three stiffener plates (117) are permanently welded in equal gap along the length of the connecting plate (116) to provide additional strength between the two scalloped plates (114, 115).

8. The device as claimed in claim 1, wherein at the both ends of the rectangle plate (111) one hole being provided to insert the Allen bolt (122). , Description:TECHNICAL FIELD
[0001] The present disclosure, in general, relates to a method of multiple pipe holding. More particularly the invention relates to a method of multiple smaller diameter pipe holding in a horizontal pipe sizing band saw machine. The invention further relates to an apparatus for sizing of pipes on multiple numbers smaller diameter pipes at a time in a horizontal pipe sizing band saw machine.

BACKGROUND
[0002] Background description includes information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art.

[0003] Generally, the band saw machine has two vices. First one is called as main vice which is fixed, another one called as shuttle vice which is movable. These vices are used to hold the pipes to cut to the required length which is named as sizing of pipes. This machine can hold minimum 80mm outside diameter pipe to maximum 950mm outside diameter of pipe. Below 80mm outside diameter pipe is not possible for sizing because if less clearance between vices.

[0004] The sizing of tube is meant for making of stub, pipe support, trunnions, branch pipe which fitted to boiler main parts such as header, panels, lines & links, coils etc., which are used in super critical and ultra-super critical boilers.

[0005] The smaller diameter pipes ranging from outside diameter 80to 150 the vices are used to hold only one pipe. Such smaller out diameter piped are required more than 2000 number per shift and it is not possible to hole multiple dimeter pipes of smaller diameter pipes in a single setting.

[0006] Since the time taken to complete the pipe sizing process is almost 30 minutes for single pipe. So to increase the productivity a device is to be developed to hold multiple number of smaller diameter pipes in a single setting to reducing the cutting time.

[0007] Therefore, there is a requirement of an apparatus and method of multiple pipe holding device and multiple pipe sizing in a horizontal pipe sizing band saw machine.

OBJECTS OF THE DISCLOSURE
[0008] Some of the objects of the present disclosure, which at least one embodiment herein satisfy, are listed herein below.

[0009] It is a general or primary object of the present disclosure to a device for cutting smaller diameter pipes less that 80mm outside diameter. Another object of the present invention is

[0010] It is another object of the present disclosure to to propose a device to hold multiple number of pipes in a single setting for sizing.
[0011] These and other objects and advantages of the present disclosure will be apparent to those skilled in the art after a consideration of the following detailed description taken in conjunction with the accompanying drawings in which a preferred form of the present disclosure is illustrated.

SUMMARY
[0012] This summary is provided to introduce concepts related to an apparatus and method of multiple pipe holding device and multiple pipe sizing in a horizontal pipe sizing band saw machine. The concepts are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

[0013] The device according to present invention includes a top plate which is to be positioned in the horizontal pipe sizing band saw machine supporting legs by Allen bolts.

[0014] The top plate is provided with a one-part hole for centre positioning of connecting tube which is named as longitudinal hole. The top plate is provided at top of the longitudinal hole two angle plates are permanently welded. In both end the top plate two holes are provided to insert Allen bolts. One guiding nut is inserted in between the two angle plates for using lead screw up down movement. One end of the lead screw is provided with a step and the bottom of the step one circlip groove is provided. Bearing fitted in the lead screw step and the outer circlip was inserted in the circlip groove, the circlip is fitted to prevent the bearing coming out. One internal step was provided in the top of the connecting tube and one internal circlip groove formed in the top of internal step. The bearing fitted lead screw is housed in the internal step of connecting tube and one inner circlip was inserted in the internal circlip groove, the circlip is preventing to bearing coming out. In bottom of the connecting tube one rectangle plate is permanently welded. At the both ends of the rectangle plate one hole is provided to insert the Allen bolt. The whole unit consisting of connecting tube with bearing housed lead screw is screwed in the bottom of the top plate through longitudinal hole and guiding nut. After screwing the unit, two locking nuts are fitted in the top end of the lead screw. By this arrangement, the up and down movement is obtained by rotating the locking nuts accordingly.

[0015] Another one unit of this invention is scalloped plate assembly. The scalloped plate assembly is having two scalloped plates, first one is front scalloped plate another one is rear scalloped plate. A connecting plate is used to connect the two scalloped plates at the top. The bottom of the two scalloped plates is provided with four curving profile to suit the smaller dimeter pipes. Depending upon the size of the pipes, the curve size also changed. Normally the range the pipes having outside diameter 80mm to 150mm. The first and last curved profile is made with a keyway so as to insert the measuring tape to sizing of the pipes to the required length. The two sub assembly units are connected by providing two holes in the item No. and fastened by Allen bolts. At the bottom of the connecting plate three stiffener plates are permanently welded in equal gap along the length of the item NO. to provide additional strength between the two scalloped plates.

[0016] By the above arrangement the work piece is placed in the bottom of the scalloped plate assembly at the four curving profiles on the scalloped plate assembly. The machine vice (not shown) is now used to tighten the work pieces on either side to cut to the required length. During the cutting operation, there is no jumping of the pipes occurred due to the curved profile. The operation is repeated further for the cutting proceeds. The time taken is very much reduced by the above method.

[0017] The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description.

BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The illustrated embodiments of the subject matter will be best understood by reference to the drawings, wherein like parts are designated by like numerals throughout. The following description is intended only by way of example, and simply illustrates certain selected embodiments of devices, systems, and methods that are consistent with the subject matter as claimed herein, wherein:

[0019] FIG. 1 shows the isometric view of the assembled invention, in accordance with an embodiment of the present disclosure.

[0020] FIG. 2 shows the front view of the assembled invention , in accordance with an embodiment of the present disclosure;

[0021] FIG. 3 shows the side view of the assembled invention , in accordance with an embodiment of the present disclosure;

[0022] FIG. 4 shows the detailed view of the scalloped plate assembly, in accordance with an embodiment of the present disclosure;

[0023] FIG. 5 shows the detailed view of the top plate, in accordance with an embodiment of the present disclosure; and

[0024] FIG. 6 shows the sectional view of the connecting tube, bearing, circlips, leadscrew, in accordance with an embodiment of the present disclosure.

[0025] The figures depict embodiments of the present subject matter for illustration only. A person skilled in the art will easily recognize from the following description that alternative embodiments of the structures and methods illustrated herein may be employed without departing from the principles of the disclosure described herein.

DETAILED DESCRIPTION

[0026] The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to con all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure as defined by the appended claims.

[0027] As used in the description herein and throughout the claims that follow, the meaning of “a,” “an,” and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise.

[0028] FIG. 1, FIG. 2 and FIG. 3 shows the isometric view, front view and side view of the assembled invention, in accordance with an embodiment of the present disclosure. The device according to present invention includes a top plate (101) which is to be positioned in the horizontal pipe sizing band saw machine supporting legs (120) by Allen bolts (120).

[0029] The top plate (101) is provided with a one-part hole (103) for centre positioning of connecting tube (110) which is named as longitudinal hole (103). The top plate (101) is provided at top of the longitudinal hole (103) two angle plates (104) are permanently welded. In both end the top plate (101) two holes are provided to insert Allen bolts (102). One guiding nut (106) is inserted in between the two angle plates (104) for using lead screw (105) up down movement. One end of the lead screw (105) is provided with a step and the bottom of the step one circlip groove (126) is provided. Bearing (107) fitted in the lead screw (105) step and the outer circlip (109) was inserted in the circlip groove (126), the circlip is fitted to prevent the bearing (107) coming out. One internal step was provided in the top of the connecting tube (110) and one internal circlip groove (127) formed in the top of internal step. The bearing fitted lead screw (105) is housed in the internal step of connecting tube (110) and one inner circlip (108) was inserted in the internal circlip groove (127), the circlip is preventing to bearing coming out. In bottom of the connecting tube (110) one rectangle plate (111) is permanently welded. At the both ends of the rectangle plate (111) one hole is provided to insert the Allen bolt (122). The whole unit (128) consisting of connecting tube (110) with bearing (107) housed lead screw (105) is screwed in the bottom of the top plate (101) through longitudinal hole (103) and guiding nut (106). After screwing the unit (128), two locking nuts (121) are fitted in the top end of the lead screw (101). By this arrangement, the up and down movement is obtained by rotating the locking nuts (121) accordingly.

[0030] FIG. 4 shows the detailed view of the scalloped plate assembly, in accordance with an embodiment of the present disclosure. Another one unit of the present invention is a scalloped plate assembly (113). The scalloped plate assembly (113) is having two scalloped plates, first one is front scalloped plate (114) another one is rear scalloped plate (115). A connecting plate (116) is used to connect the two scalloped plates (114 and 115) at the top. The bottom of the two scalloped plates is provided with four curving profile (118) to suit the smaller dimeter pipes. Depending upon the size of the pipes, the curve size also changed. Normally the range the pipes having outside diameter 80mm to 150mm. The first and last curved profile is made with a keyway (119) so as to insert the measuring tape to sizing of the pipes (123) to the required length. The scalloped plate assembly (113) and the unit (128) are connected by providing two holes in the item No. (116) and fastened by Allen bolts (122). At the bottom of the connecting plate (116) three stiffener plates (117) are permanently welded in equal gap along the length of the item NO. (116) to provide additional strength between the two scalloped plates.

[0031] By the above arrangement the work piece (123) is placed in the bottom of the scalloped plate assembly (113) at the four curving profiles (118) on the scalloped plate assembly. The machine vice (not shown) is now used to tighten the work pieces (123) on either side to cut to the required length. During the cutting operation, there is no jumping of the pipes occurred due to the curved profile. The operation is repeated further for the cutting proceeds. The time taken is very much reduced by the above method.

[0032] FIG. 5 shows the detailed view of the top plate, in accordance with an embodiment of the present disclosure.

[0033] FIG. 6 shows the sectional view of the connecting tube, bearing, circlips, leadscrew, in accordance with an embodiment of the present disclosure.

[0034] It will be understood by those within the art that, in general, terms used herein, and especially in the appended claims (e.g., bodies of the appended claims) are generally intended as “open” terms (e.g., the term “including” should be interpreted as “including but not limited to,” the term “having” should be interpreted as “having at least,” the term “includes” should be interpreted as “includes but is not limited to,” etc.). It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases “at least one” and “one or more” to introduce claim recitations. However, the use of such phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles “a” or “an” limits any particulars claim containing such introduced claim recitation to inventions containing only one such recitation, even when the same claim includes the introductory phrases “one or more” or “at least one” and indefinite articles such as “a” or “an” (e.g., “a” and/or “an” should typically be interpreted to mean “at least one” or “one or more”); the same holds true for the use of definite articles used to introduce claim recitations. In addition, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should typically be interpreted to mean at least the recited number (e.g., the bare recitation of “two recitations,” without other modifiers, typically means at least two recitations, or two or more recitations). Furthermore, in those instances where a convention analogous to “at least one of A, B and C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system having at least one of A, B and C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). In those instances, where a convention analogous to “at least one of A, B, or C, etc.” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., “a system having at least one of A, B, or C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, etc.). It will be further understood by those within the art that virtually any disjunctive word and/or phrase presenting two or more alternative terms, whether in the description, claims, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase “A or B” will be understood to include the possibilities of “A” or “B” or “A and B”.

[0035] The above description does not provide specific details of manufacture or design of the various components. Those of skill in the art are familiar with such details, and unless departures from those techniques are set out, techniques, known, related art or later developed designs and materials should be employed. Those in the art are capable of choosing suitable manufacturing and design details.

[0036] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. It will be appreciated that several of the above-disclosed and other features and functions, or alternatives thereof, may be combined into other systems or applications. Various presently unforeseen or unanticipated alternatives, modifications, variations, or improvements therein may subsequently be made by those skilled in the art without departing from the scope of the present disclosure as encompassed by the following claims.

[0037] The claims, as originally presented and as they may be amended, encompass variations, alternatives, modifications, improvements, equivalents, and substantial equivalents of the embodiments and teachings disclosed herein, including those that are presently unforeseen or unappreciated, and that, for example, may arise from applicants/patentees and others.

[0038] While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspects and embodiments disclosed herein are for purposes of illustration and are not intended to be limiting, with the true scope and spirit being indicated by the following claims.