US2933173A - Stock bar guide feed tube - Google Patents
Stock bar guide feed tube Download PDFInfo
- Publication number
- US2933173A US2933173A US679690A US67969057A US2933173A US 2933173 A US2933173 A US 2933173A US 679690 A US679690 A US 679690A US 67969057 A US67969057 A US 67969057A US 2933173 A US2933173 A US 2933173A
- Authority
- US
- United States
- Prior art keywords
- feed tube
- stock bar
- bar guide
- tubes
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000203 mixture Substances 0.000 description 11
- 235000021388 linseed oil Nutrition 0.000 description 3
- 239000000944 linseed oil Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- MFEVGQHCNVXMER-UHFFFAOYSA-L 1,3,2$l^{2}-dioxaplumbetan-4-one Chemical compound [Pb+2].[O-]C([O-])=O MFEVGQHCNVXMER-UHFFFAOYSA-L 0.000 description 1
- 229910000003 Lead carbonate Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 239000011345 viscous material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B13/00—Arrangements for automatically conveying or chucking or guiding stock
- B23B13/08—Arrangements for reducing vibrations in feeding-passages or for damping noise
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T82/00—Turning
- Y10T82/25—Lathe
- Y10T82/2593—Work rest
- Y10T82/2595—Work rest with noise or vibration dampener
Definitions
- This invention relates to stock bar feeding tubes, or guides, of the type used in connection with automatic bar working machines wherein the stock bar is fed through the tube and into the bar working machine.
- the feed tubes, or guides are formed of metal and usually, the stock bars are of metal and are several feet in length when initially placed into the bar feed guide.
- the bars are rotated within the guide tube at high speed during the formation of the work piece. This high speed rotation of the long bar sets up undulations in the bar whereby the bar vibrates violently against the inside of the tube, creating an undesirable noise of considerable magnitude, well exceeding one hundred decibels.
- This invention has as an object a stock bar feed tube embodying a structural arrangement which is particularly economical to manufacture and which functions to reduce the noise level so that it is not objectionable.
- FIG. 1 is a cross sectional view of a stock bar feed tube embodying my invention.
- Figure 2 is a foreshortened longitudinal cross sectional view of the feed tube.
- the stock bar feed tube here illustrated is of the general type disclosed in Patent No. 2,300,457, issued to E. S. Mariotte, November 3, 1942.
- the feed tube consists of an inner member 10 positioned within and in spaced concentric relation to an outer member 12.
- the inner and outer members are shown in the form of metal tubes fixedly secured together at their ends by annular end wall members 14, the tubes being affixed to the end members 14, as by being welded thereto, whereby the space between the inner and outer members forms a closed compartment.
- the outer tube 12 is formed adjacent each end thereof with threaded apertures 25, 26, provided with closure 2,933,173 Patented Apr. 19, 1960 plugs 27, 28.
- the space between the inner and outer tubes 12 is filled with a viscous material 22 of a putty-like nature-that is, a material consisting essentially of a mixture of metallic salts and oil.
- a viscous material 22 of a putty-like nature-that is, a material consisting essentially of a mixture of metallic salts and oil.
- ordinary putty or caulking compound comprising calcium carbonate and linseed oil with, or without, a. percentage of lead carbonate.
- the composition is blended to a viscous texture which will flow under pressure and is introduced into the space between the tubes 10, 12, by suitable pressure applying apparatus.
- the plugs 27, 28, are removed and the viscous composition is forced through one of the apertures, as the aperture 25.
- the composition is forced into the space between the inner and outer tubes until it exudes from the opening 26 at the opposite end of the tube, whereupon the plugs 27, 28, are threaded into the apertures to close the compartment. In this manner, the entire space is filled. with the composition. in practice, it has been found that the composition can be properly introduced in the space between the inner and outer tubes under pressure of approximately ninety pounds per square inch.
- This composition serves as a particularly efiicient sound dampening or insulating medium whereby the vibrations imparted to the inner tube lit by rotating stock bar are materially dampened before reaching the outer tube 12. With this arrangement, the noise level is reduced twenty or more decibels.
- a stock bar feed tube comprising an elongated inner imperforate metallic member, an outer member of length comparable to said inner member, said members being fixedly joined together to provide a closed space between said members, said space extending substantially comparable to the length of said inner and outer members and being filled with a viscous putty-like composition.
- a stock bar feed tube as set forth in claim 1, wherein the space between said inner and outer members is filled with a sound absorbent medium consisting essentially of a putty-like material.
- a stock bar feed tube as set forth in claim 1, wherein the space between said inner and ter members is filled with a composition consisting essentially of a mixture of metallic salts and linseed oil.
- a stock bar feed tube comprising inner and outer imperforate tubular members of comparable length arranged in spaced concentric relation, said tubes being fixedly joined at their ends to provide a closed compartment between said inner and outer tubes, said compartment beingcompletely filled with a sound absorbent material consisting essentially of a mixture of metallic salts and linseed oil.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Description
April 19, 1960 F. D. LAKINS STOCK BAR GUIDE FEED TUBE Filed Aug. 22, 1957 INVENTOR. FraDKNhQLQK/h: BY 2 ATT SRNE).
United States Patent STGCK BAR GUIDE FEED TUBE Franklin D. Laldns, Nedrow,.l-l.Y., assignor to Lipe- Rollway Corporation, Syracuse, Niifl, a corporation of New York Application August 22, 1957, Serial No. 679,690
4 Claims. c1. ma as This invention relates to stock bar feeding tubes, or guides, of the type used in connection with automatic bar working machines wherein the stock bar is fed through the tube and into the bar working machine. The feed tubes, or guides, are formed of metal and usually, the stock bars are of metal and are several feet in length when initially placed into the bar feed guide. The bars are rotated within the guide tube at high speed during the formation of the work piece. This high speed rotation of the long bar sets up undulations in the bar whereby the bar vibrates violently against the inside of the tube, creating an undesirable noise of considerable magnitude, well exceeding one hundred decibels.
Heretofore, various attempts have been made to construct feed tubes in such a manner as to reduce the noise below an undesirable level. However these attempts, while adding materially to the cost of the feed tubes, have not resulted in any appreciable reduction of the noise level.
This invention has as an object a stock bar feed tube embodying a structural arrangement which is particularly economical to manufacture and which functions to reduce the noise level so that it is not objectionable.
The invention consists in the novel features and in the combinations and constructions hereinafter set forth and claimed.
In describing this invention, reference is had to the accompanying drawings in which like characters designate corresponding parts in all the views.
In the drawings- Figure 1 is a cross sectional view of a stock bar feed tube embodying my invention, and
Figure 2 is a foreshortened longitudinal cross sectional view of the feed tube.
The stock bar feed tube here illustrated is of the general type disclosed in Patent No. 2,300,457, issued to E. S. Mariotte, November 3, 1942.
Referring to the drawings, the feed tube consists of an inner member 10 positioned within and in spaced concentric relation to an outer member 12. The inner and outer members are shown in the form of metal tubes fixedly secured together at their ends by annular end wall members 14, the tubes being affixed to the end members 14, as by being welded thereto, whereby the space between the inner and outer members forms a closed compartment.
The outer tube 12 is formed adjacent each end thereof with threaded apertures 25, 26, provided with closure 2,933,173 Patented Apr. 19, 1960 plugs 27, 28. The space between the inner and outer tubes 12 is filled with a viscous material 22 of a putty-like nature-that is, a material consisting essentially of a mixture of metallic salts and oil. For example, ordinary putty or caulking compound comprising calcium carbonate and linseed oil with, or without, a. percentage of lead carbonate. The composition is blended to a viscous texture which will flow under pressure and is introduced into the space between the tubes 10, 12, by suitable pressure applying apparatus.
The plugs 27, 28, are removed and the viscous composition is forced through one of the apertures, as the aperture 25. The composition is forced into the space between the inner and outer tubes until it exudes from the opening 26 at the opposite end of the tube, whereupon the plugs 27, 28, are threaded into the apertures to close the compartment. In this manner, the entire space is filled. with the composition. in practice, it has been found that the composition can be properly introduced in the space between the inner and outer tubes under pressure of approximately ninety pounds per square inch. This composition serves as a particularly efiicient sound dampening or insulating medium whereby the vibrations imparted to the inner tube lit by rotating stock bar are materially dampened before reaching the outer tube 12. With this arrangement, the noise level is reduced twenty or more decibels.
What I claim is:
l. A stock bar feed tube comprising an elongated inner imperforate metallic member, an outer member of length comparable to said inner member, said members being fixedly joined together to provide a closed space between said members, said space extending substantially comparable to the length of said inner and outer members and being filled with a viscous putty-like composition.
2. A stock bar feed tube, as set forth in claim 1, wherein the space between said inner and outer members is filled with a sound absorbent medium consisting essentially of a putty-like material.
3. A stock bar feed tube, as set forth in claim 1, wherein the space between said inner and ter members is filled with a composition consisting essentially of a mixture of metallic salts and linseed oil.
4. A stock bar feed tube comprising inner and outer imperforate tubular members of comparable length arranged in spaced concentric relation, said tubes being fixedly joined at their ends to provide a closed compartment between said inner and outer tubes, said compartment beingcompletely filled with a sound absorbent material consisting essentially of a mixture of metallic salts and linseed oil.
References Cited in the file of this patent UNITED STATES PATENTS 903,878 Mock Nov. 17, 1908 1,891,290 Tessky Dec. 20, 1932 2,133,376 Brown Oct. 18, 1938 2,419,278 Motsenbocker Apr. 22, 1947 FOREIGN PATENTS 214,957 Witzerland Oct. 1, 1941
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US679690A US2933173A (en) | 1957-08-22 | 1957-08-22 | Stock bar guide feed tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US679690A US2933173A (en) | 1957-08-22 | 1957-08-22 | Stock bar guide feed tube |
Publications (1)
Publication Number | Publication Date |
---|---|
US2933173A true US2933173A (en) | 1960-04-19 |
Family
ID=24727948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US679690A Expired - Lifetime US2933173A (en) | 1957-08-22 | 1957-08-22 | Stock bar guide feed tube |
Country Status (1)
Country | Link |
---|---|
US (1) | US2933173A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3752259A (en) * | 1971-05-13 | 1973-08-14 | Wright Eng Co Ltd | Sound reducing device for use with bar fed machinery |
US3918696A (en) * | 1974-12-09 | 1975-11-11 | Acme Cleveland Corp | Composite stock tube |
US3930568A (en) * | 1973-05-29 | 1976-01-06 | Bti Company | Bar stock silencer tube |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US903878A (en) * | 1905-05-11 | 1908-11-17 | Hugo Mock | Heat-insulator. |
US1891290A (en) * | 1929-08-24 | 1932-12-20 | Tessky Karl | Work piece guide for machine tools |
US2133376A (en) * | 1936-09-21 | 1938-10-18 | Carey Philip Mfg Co | Fire protection unit |
CH214957A (en) * | 1940-08-15 | 1941-05-31 | Suisse De Vis Et Boulons S A F | Sound damping bar guide device for machine tool. |
US2419278A (en) * | 1945-06-30 | 1947-04-22 | Phillips Petroleum Co | Insulated pipe |
-
1957
- 1957-08-22 US US679690A patent/US2933173A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US903878A (en) * | 1905-05-11 | 1908-11-17 | Hugo Mock | Heat-insulator. |
US1891290A (en) * | 1929-08-24 | 1932-12-20 | Tessky Karl | Work piece guide for machine tools |
US2133376A (en) * | 1936-09-21 | 1938-10-18 | Carey Philip Mfg Co | Fire protection unit |
CH214957A (en) * | 1940-08-15 | 1941-05-31 | Suisse De Vis Et Boulons S A F | Sound damping bar guide device for machine tool. |
US2419278A (en) * | 1945-06-30 | 1947-04-22 | Phillips Petroleum Co | Insulated pipe |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3752259A (en) * | 1971-05-13 | 1973-08-14 | Wright Eng Co Ltd | Sound reducing device for use with bar fed machinery |
US3930568A (en) * | 1973-05-29 | 1976-01-06 | Bti Company | Bar stock silencer tube |
US3918696A (en) * | 1974-12-09 | 1975-11-11 | Acme Cleveland Corp | Composite stock tube |
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