US886362A - Flue-scraper. - Google Patents
Flue-scraper. Download PDFInfo
- Publication number
- US886362A US886362A US28868605A US1905288686A US886362A US 886362 A US886362 A US 886362A US 28868605 A US28868605 A US 28868605A US 1905288686 A US1905288686 A US 1905288686A US 886362 A US886362 A US 886362A
- Authority
- US
- United States
- Prior art keywords
- flue
- scraper
- spring
- section
- scraping section
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A29/00—Cleaning or lubricating arrangements
- F41A29/02—Scrapers or cleaning rods
Definitions
- My present invention relates to a liue scraper which comprises a pair of 'metallic heads l and 2, connected together by a bolt 3, having a portion screw threaded at 4 and provided with nuts 5 by which the heads l and 2 are drawn toward each other between the nuts 5 and a shoulder 6.
- the heads l and 2 are recessed as indicated by the broken lines 7 and S to receive the ends of the knit wire section 9, consisting of a series of looped and interlaced elastic steel wires forming a tubular section gradually increasing in diameter from each end toward the center, the outer surfaces of said wires forming the scraping section of the device.
- My present invention consists in providing the elastic wire scraping section 9 with an inclosed expanding spring lO shown in detached perspective view in Fig. 2.
- the expanding spring l0 is formed from an elastic steel plate bent substantially in the form of a circular tube, but having one of its ends ll bent abruptly inward so as to insure the overlapping of the ends of the spring as the spring is compressed. The compression of the spring which brings the ends together causes the bent end ll to slide beneath the opposite end l2.
- At suitable points upon the spring l0 I provide outwardly projecting spurs 13 which are adapted to enter between the meshes of the wire section 9 and prevent the displacement of the spring within the scra er, serving to hold it central between the eads l and 2.
- the scraper In operation the scraper is provided with a long handle, a portion of which is shown at 14, by which the scraper is pushed back and forth through the flue with the meshed wires of the scraping section 9 in contact with the interior surface of the flue.
- the normal diameter of the scraping section 9 is greaterl than the interior diameter of the flue to be cleaned, causing a compression of the meshed wires in the scraping section and pressing them against the exterior surface of the expanding spring l0.
- the spring l0 is of sufficient diameter so that when it is inserted within the nieslied scraping section 9, it will exert normally a pressure against'the interior of the wires, holding them in their normally expanded position, and as the scraping section 9 is compressed within the flue the tension of the spring l0 maintains sufficient pressure against the yielding wires of the scraping section 9 to forcibly remove the soot or other accretions which have been formed on the surface of the flue.
- the scraper is violently pushed through the flue and retracted, an unequal contraction of the flue scraping section results, due to irregularity of the deposit upon vthe inner surface of the flue, but the relative position of the meshed wires 9 and the expanding spring l0 is constantly maintained by the interlocking spurs 13.
- a fiue scraper having a central iiexible section, means for varying the diameter of said central section, an annular spring inclosed in said central section, with one end of said spring bent at an angle to allow free movement of the opposite end of the spring when the diameter of said central section is varied.
- a flue scraper having a central flexible scraping section of interineshed wire, an annular spring inclosed in said central section provided with outwardly projecting spurs to engage the meshes of the wire, whereby said spring is made to conform with the change 1n form of said central section.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Wire Processing (AREA)
- Preliminary Treatment Of Fibers (AREA)
Description
PATENTED MAY 5, 1908.
E. E. FLETCHER. FLUE SGRAPBR.
APPLIGATION FILED NOV. 23, 1905.
ili-
'mw' emisor* Edward F Fl l ghef EDWARD F. FLETCHER, OF WORCESTER, MASSACHUSETTS.
FLUE-SCRAPER.
Specification of Letters Patent.
Patented May 5, 1908.
Application filed November 23, 1905. Serial No. 288,686.
To all whom it may concern:
Be it known that I, EDWARD F. FLETCHER, a citizen of the United States, residing at IVorcester, in the county of I/Vorcester and Commonwealth of Massachusetts, have invented a new and useful Improvement in a Flue-Scraper, of which the following is a specification, accompanied by drawings, forming a part of the same, in which- Figure l represents a side view of a iue scraper embodying my present invention. Fig, 2 is a detached and perspective view of the expanding spring by which the contour of' the flue scraping section is restored,
Similar reference letters and Jfigures refer to similar parts in the different views.
My present invention relates to a liue scraper which comprises a pair of 'metallic heads l and 2, connected together by a bolt 3, having a portion screw threaded at 4 and provided with nuts 5 by which the heads l and 2 are drawn toward each other between the nuts 5 and a shoulder 6. The heads l and 2 are recessed as indicated by the broken lines 7 and S to receive the ends of the knit wire section 9, consisting of a series of looped and interlaced elastic steel wires forming a tubular section gradually increasing in diameter from each end toward the center, the outer surfaces of said wires forming the scraping section of the device.
My present invention consists in providing the elastic wire scraping section 9 with an inclosed expanding spring lO shown in detached perspective view in Fig. 2. The expanding spring l0 is formed from an elastic steel plate bent substantially in the form of a circular tube, but having one of its ends ll bent abruptly inward so as to insure the overlapping of the ends of the spring as the spring is compressed. The compression of the spring which brings the ends together causes the bent end ll to slide beneath the opposite end l2. At suitable points upon the spring l0 I provide outwardly projecting spurs 13 which are adapted to enter between the meshes of the wire section 9 and prevent the displacement of the spring within the scra er, serving to hold it central between the eads l and 2.
In operation the scraper is provided with a long handle, a portion of which is shown at 14, by which the scraper is pushed back and forth through the flue with the meshed wires of the scraping section 9 in contact with the interior surface of the flue. The normal diameter of the scraping section 9 is greaterl than the interior diameter of the flue to be cleaned, causing a compression of the meshed wires in the scraping section and pressing them against the exterior surface of the expanding spring l0. The spring l0 is of sufficient diameter so that when it is inserted within the nieslied scraping section 9, it will exert normally a pressure against'the interior of the wires, holding them in their normally expanded position, and as the scraping section 9 is compressed within the flue the tension of the spring l0 maintains sufficient pressure against the yielding wires of the scraping section 9 to forcibly remove the soot or other accretions which have been formed on the surface of the flue. As the scraper is violently pushed through the flue and retracted, an unequal contraction of the flue scraping section results, due to irregularity of the deposit upon vthe inner surface of the flue, but the relative position of the meshed wires 9 and the expanding spring l0 is constantly maintained by the interlocking spurs 13. i
I/Vhat I claim as my invention and desire to secure by Letters Patent is l. As an article of manufacture, a fiue scraper having a central iiexible section, means for varying the diameter of said central section, an annular spring inclosed in said central section, with one end of said spring bent at an angle to allow free movement of the opposite end of the spring when the diameter of said central section is varied.
2. As an article of manufacture, a flue scraper having a central flexible scraping section of interineshed wire, an annular spring inclosed in said central section provided with outwardly projecting spurs to engage the meshes of the wire, whereby said spring is made to conform with the change 1n form of said central section.
. EDWARD F. FLETCHER.
Witnesses: y
PENELOPE COMBERBACH, RUFUs B. FowLER.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US28868605A US886362A (en) | 1905-11-23 | 1905-11-23 | Flue-scraper. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US28868605A US886362A (en) | 1905-11-23 | 1905-11-23 | Flue-scraper. |
Publications (1)
Publication Number | Publication Date |
---|---|
US886362A true US886362A (en) | 1908-05-05 |
Family
ID=2954796
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US28868605A Expired - Lifetime US886362A (en) | 1905-11-23 | 1905-11-23 | Flue-scraper. |
Country Status (1)
Country | Link |
---|---|
US (1) | US886362A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090320223A1 (en) * | 2008-02-13 | 2009-12-31 | Petroleo Brasileiro S.A. -Petrobras | Multi-diameter elastic sealing module for pigs |
-
1905
- 1905-11-23 US US28868605A patent/US886362A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090320223A1 (en) * | 2008-02-13 | 2009-12-31 | Petroleo Brasileiro S.A. -Petrobras | Multi-diameter elastic sealing module for pigs |
US8051524B2 (en) * | 2008-02-13 | 2011-11-08 | Petroleo Brasileiro S.A.-Petrobras | Multi-diameter elastic sealing module for pigs |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US1519938A (en) | Flexible pliers | |
US566544A (en) | Plumber s tack | |
US886362A (en) | Flue-scraper. | |
US1286388A (en) | High-pressure hose-coupling. | |
US904122A (en) | Gun-cleaner. | |
US824642A (en) | Clinker-catcher. | |
US684981A (en) | Gun-cleaner. | |
US1213383A (en) | Firearm-cleaning-rod tip. | |
US1002963A (en) | Jar-closure fastener. | |
US921569A (en) | Gun-cleaning device. | |
US702359A (en) | Gun-cleaning tool. | |
US1280443A (en) | Tube-cleaning tool. | |
US583785A (en) | James brown | |
US427963A (en) | Sylvania | |
US1248847A (en) | Tube-cleaning tool. | |
US4247964A (en) | Chimney sweeping brush | |
US138317A (en) | Improvement in coiled-wire brushes | |
US774699A (en) | Boiler-tube cleaner. | |
US2290467A (en) | Stovepipe cleaner or scraper | |
US51362A (en) | Improved instrument for cleaning boiler-flues | |
US393810A (en) | Boiler-flue cleaner | |
US1051275A (en) | Ladder. | |
US713754A (en) | Gun-cleaning tool. | |
US1051323A (en) | Flue-cleaner. | |
US1065174A (en) | Sewer-cleaner. |