US1313725A - Boiler-tube cleaner - Google Patents
Boiler-tube cleaner Download PDFInfo
- Publication number
- US1313725A US1313725A US1313725DA US1313725A US 1313725 A US1313725 A US 1313725A US 1313725D A US1313725D A US 1313725DA US 1313725 A US1313725 A US 1313725A
- Authority
- US
- United States
- Prior art keywords
- casing
- heads
- rotor
- boiler
- cleaner
- 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
- 239000012530 fluid Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
- F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
- F04C29/128—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type of the elastic type, e.g. reed valves
Definitions
- the general object of this invention is to produce a boiler tube cleaner of simplicd and improved construction, and a special aim is to provide a device which embodies ⁇ a minimum number of parts so constructed and arranged as to afford the maximum degree of strength and durability and be capable of being cheaply manufactured, and in which the parts subject to the greatest wear may be quickly and easily replaced, so that the device may be operated and rcpaired by an inexperienced workman.
- Figure 1 is an elevational view illustrating a boiler tube cleaner embodying my invention in place in a tube.
- Fig. 2 is a longitudinal central Section through the entire device taken in the plane of line 2 2 of Fig. 1.
- Figs. 3 and 4 are transverse sections through the cleaner taken in the planes of lines Smil and L -4, respectively of Fig. 2.
- Fig. 5 is an enlarged longitudinal section through the rear eiid of the cleaner taken in a plane approximately perpendicular to that of Fig. 2.
- Fig. 6 is an end elevation looking at the right-hand end of Fig. 2.
- A indicates a boiler tube through which the cleaner is adapted to be inserted for the purpose of cleaning the scale from the tube.
- the cleaner' com prises a motor section and a reamer or tool section. It is to the former that the present invention relates.
- the motor comprises a cylindrical tubular casing 10, the ends of which are closed by a rear head 11 and a front head 12, respectively, said heads being located externally to the casing.
- the main portion of each of said heads is of considerably smaller diameter than the casing 10 and at the inner end face of each head is formed an annular radial flange 13 which abuts against the end of the casing.
- a circular projection 13a which fits snugly within the end of the casing 10.
- Each head is arranged to be tightly clamped to the casing by an annular collar 14 having an inwardly-extending radial flange which lits about the head and is arranged to engage the Shoulder pr'ovidedby the flange 13.
- the exterior of the casing 10 at the ends thereof and the interiors of the collar 14 are screw-threaded so that when the collars are turne'd up o'n the threads the heads will be securely held iii place.
- Said means is of an interlocking character and in the present instance comprises pins 15 fixed in and projecting from the ends of the casing 10 and adapted to fit into corresponding openings yin the flanges 13 of the heads. 4 j
- the casing and heads constitute the stator of the motor.
- the rotor is in the form of a cylindrical body 16 having a plurality of radial slots 17 (in this instance three) extending from end to end tl'i'eieof parallel with the axis of said body.
- a blade or vane 18 fits loosely, said blades being of such length as to extend theI full distance between the inner faces of the heads 11 ,and 12.
- the bottoms of the slots 17 and the inner edges of the blades 18 are somewhat rounded or inclined at their end portions so that the rotor joui"- nals will not be weakened by said slots.
- the rotor is eccentric to the casing 10 'and in the rotation of the rotor lthe blades 18 are thrown outwardly into contact with the inner face of the casing 10 and the blades move in and out on account of the eccentric relation of the rotor and casing.
- journal 19 On the rear end of the rotor is a stub journal 19 concentric with the rotor which is mounted in a socket or bearing 20 in the inner part of the rear head 11, said socket or bearing being eccentric to the head.
- lA journal or shaft 21 projects concentrieally from the forward end of the rotor 16 and passes through the head 12, being mounted in an eccentric bearing 22 in said head.
- the tool and mounting means may be of any common or preferred construction.
- the tool 23 is rotatably mounted on a bolt 24 which is threaded in a knuckle 25.
- Said knuckle is joined by a nur 2e to a knuckle 27 which is threaded upon and rigidly fixed to the forward end of the shaft 21.
- the pivot pins 28 and 29 connecting the link 26 to the two knuckles are at right angles to each other,.so that a universal connection between the tool 23 and the. shaft 21 is provided.- Due to the eccentric mounting and rapid rotation'of the shaft 21, the tool 23 will be caused to deliver sharp blows in quick succession to the tube A so as breakup and remove thescale therefrom.
- the outer endiof the rear head ⁇ 11 has a chamber or cavity therein which is interiorly threaded to receive a coupling ele-V f ment 31 for securing to the head a flexibleV hoseV 32 by which compressed air or other motive iiuid is conveyed to the motor.
- 'I he cavity 30 communicates with the interior of the casing 10 through one or more inlet ports 33. (Figs. 4 and 5), four being shown in the present.instancev Said ports extend at an angle'Y to the axis of the head and deliver the Amotivev Vfhiid to the space between the exterior of the rotor 16 and interior of the casing '10.
- the motive fluid acting on the blades 18 will cause rapid rotation of the rotor and at the proper time the motive fluid escapes from4 the casing Vthrough exhaust ports 34; (Figs. 1 and The chamber 3() acts as an equalizing and distributing chamber from which the inlet ports 33 are supplied. ⁇ As thebladcs 18 pass the ports 33 the rotorwill receive successive impulses yfrom the incoming air'jets.
- the heads 11 and y12 project beyond the caps 1li and are of longr dimension in an axial direction.
- a long bearing is Vthus provided for the shaft'21 of the rotor', which shaft and bearing receive most l,of the shock caused by the impacts of thecleaning tool 23.
- the great axial length Vof the rearV headY 11 allows the employment By reason of the fact that the motor embodies so few parts, is durably constructed, and may be readily repaired, it is possible to employ a cheap class of labor to operate a cleaner of this type. Furthermore, the simplicity and the paucity of parts conduct to extreme cheapness in manufacture.
- a boiler tube cleaner having, in combination, a casing having concentric inner and outer peripheral walls, heads closing Y the opposite ends of the casing and having annular externalV flanges abutting against the 'extreme ends of the casing, collars threaded upon the ends of the casing on the outer periphery thereof Vand having inwardly extending flanges which surround the heads and engage with the flanges thereon to clamp the heads to the casing, and a Vrotor in the casing having journals at its opposite ends mountedL Vin said heads eccentricallythereof and also ofthe outer pe-V riphery of the casing; there being a motiveV fluid inlet port in one of the heads andan outlet port in the casing, said rotor having blades adapted to pass said ports successively in the movements of the rotor, and one of said journals being extended and having'a tool mounted on its extended end.
- a boiler tube cleaner having a motor casing adapted to be entered into a tube, 'a rotor eccentrically mounted in said casing and having a projecting journal eccentric to the casing and consequently eccentric to the tube, and a tool having a fiexible connection to the j ournal.
- a boiler tube cleaner comprising aV cylindrical motor casing adapted to be cntered into a tube, ⁇ a shaft projecting from the end of the casing and eccentric to the axis thereof, vmeans in the casing to rotatethe shaft, and a tool iiexibly connected to the outer end of the shaft.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning In General (AREA)
Description
H. L. NEEDHAM.
BOILER TUBE CLEANER.
APPLICATION FILED MAY 28. 19|?.
Patented Aug. 19, 1919.
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H. L. NEEDHAM.
BOILER TUBE CLEANER.
APPUcATloN FILED MAY 28. |917.
1 ,3 1 3 ,725 Patented Aug. 19, 1919.
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I'IOUGHTON L. NEEDHAM, 0F CHICAGO, ILLINOIS.
BOILER-TUBE CLEAN'ER.
Specication of Letters Patent.
Patented Aug. 19, 1919.
Application filed May 28, 1917. Serial No. 171,444.
To all whom t 'may concern.'
Be it known that I, HoUGii'ioN Ii. Nuno- HAM, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Boiler-Tube Cleaners, of which thc following is a specification.
The general object of this invention is to produce a boiler tube cleaner of simplicd and improved construction, and a special aim is to provide a device which embodies` a minimum number of parts so constructed and arranged as to afford the maximum degree of strength and durability and be capable of being cheaply manufactured, and in which the parts subject to the greatest wear may be quickly and easily replaced, so that the device may be operated and rcpaired by an inexperienced workman.
In the accompanying drawings, Figure 1 is an elevational view illustrating a boiler tube cleaner embodying my invention in place in a tube. Fig. 2 is a longitudinal central Section through the entire device taken in the plane of line 2 2 of Fig. 1. Figs. 3 and 4 are transverse sections through the cleaner taken in the planes of lines Smil and L -4, respectively of Fig. 2. Fig. 5 is an enlarged longitudinal section through the rear eiid of the cleaner taken in a plane approximately perpendicular to that of Fig. 2. Fig. 6 is an end elevation looking at the right-hand end of Fig. 2.
Referring to Fig. l, A indicates a boiler tube through which the cleaner is adapted to be inserted for the purpose of cleaning the scale from the tube. The cleaner' com prises a motor section and a reamer or tool section. It is to the former that the present invention relates.
In the preferred embodiment of the invention shown in the drawings, the motor comprises a cylindrical tubular casing 10, the ends of which are closed by a rear head 11 and a front head 12, respectively, said heads being located externally to the casing. The main portion of each of said heads is of considerably smaller diameter than the casing 10 and at the inner end face of each head is formed an annular radial flange 13 which abuts against the end of the casing. At the inner end face of the head is a circular projection 13a which fits snugly within the end of the casing 10.
Each head is arranged to be tightly clamped to the casing by an annular collar 14 having an inwardly-extending radial flange which lits about the head and is arranged to engage the Shoulder pr'ovidedby the flange 13. The exterior of the casing 10 at the ends thereof and the interiors of the collar 14 are screw-threaded so that when the collars are turne'd up o'n the threads the heads will be securely held iii place.
.Means is provided to insure the association of the heads with the casina` 10 in correct position to aline 7the eccenti'ic bearings in said heads and to prevent relative rotation between the heads and the casing. Said means is of an interlocking character and in the present instance comprises pins 15 fixed in and projecting from the ends of the casing 10 and adapted to fit into corresponding openings yin the flanges 13 of the heads. 4 j
The casing and heads constitute the stator of the motor. The rotor is in the form of a cylindrical body 16 having a plurality of radial slots 17 (in this instance three) extending from end to end tl'i'eieof parallel with the axis of said body. In each of said slots a blade or vane 18 fits loosely, said blades being of such length as to extend theI full distance between the inner faces of the heads 11 ,and 12. Preferably the bottoms of the slots 17 and the inner edges of the blades 18 are somewhat rounded or inclined at their end portions so that the rotor joui"- nals will not be weakened by said slots. The rotor is eccentric to the casing 10 'and in the rotation of the rotor lthe blades 18 are thrown outwardly into contact with the inner face of the casing 10 and the blades move in and out on account of the eccentric relation of the rotor and casing.
On the rear end of the rotor is a stub journal 19 concentric with the rotor which is mounted in a socket or bearing 20 in the inner part of the rear head 11, said socket or bearing being eccentric to the head. lA journal or shaft 21 projects concentrieally from the forward end of the rotor 16 and passes through the head 12, being mounted in an eccentric bearing 22 in said head.
On the forward end of the shaft 21 is mounted the cleaning tool. The tool and mounting means may be of any common or preferred construction. In the present exemplary form the tool 23 is rotatably mounted on a bolt 24 which is threaded in a knuckle 25. Said knuckle is joined by a nur 2e to a knuckle 27 which is threaded upon and rigidly fixed to the forward end of the shaft 21. The pivot pins 28 and 29 connecting the link 26 to the two knuckles are at right angles to each other,.so that a universal connection between the tool 23 and the. shaft 21 is provided.- Due to the eccentric mounting and rapid rotation'of the shaft 21, the tool 23 will be caused to deliver sharp blows in quick succession to the tube A so as breakup and remove thescale therefrom.
The outer endiof the rear head `11 has a chamber or cavity therein which is interiorly threaded to receive a coupling ele-V f ment 31 for securing to the head a flexibleV hoseV 32 by which compressed air or other motive iiuid is conveyed to the motor. 'I he cavity 30 communicates with the interior of the casing 10 through one or more inlet ports 33. (Figs. 4 and 5), four being shown in the present.instancev Said ports extend at an angle'Y to the axis of the head and deliver the Amotivev Vfhiid to the space between the exterior of the rotor 16 and interior of the casing '10. n The motive fluid acting on the blades 18 will cause rapid rotation of the rotor and at the proper time the motive fluid escapes from4 the casing Vthrough exhaust ports 34; (Figs. 1 and The chamber 3() acts as an equalizing and distributing chamber from which the inlet ports 33 are supplied. `As thebladcs 18 pass the ports 33 the rotorwill receive successive impulses yfrom the incoming air'jets.
:fIt' will be noted that the heads 11 and y12 project beyond the caps 1li and are of longr dimension in an axial direction. A long bearing is Vthus provided for the shaft'21 of the rotor', which shaft and bearing receive most l,of the shock caused by the impacts of thecleaning tool 23. The great axial length Vof the rearV headY 11 allows the employment By reason of the fact that the motor embodies so few parts, is durably constructed, and may be readily repaired, it is possible to employ a cheap class of labor to operate a cleaner of this type. Furthermore, the simplicity and the paucity of parts conduce to extreme cheapness in manufacture.
I/Vhile I have herein described in detail the preferred embodiment of my invention, it should be understood that I do not thereby intend to limit myself to the exact form disclosed, but aim to cover in the appended claims all modifications and equivalents falling within the scope of the invention.
I claim as my invention: Y
1. A boiler tube cleaner having, in combination, a casing having concentric inner and outer peripheral walls, heads closing Y the opposite ends of the casing and having annular externalV flanges abutting against the 'extreme ends of the casing, collars threaded upon the ends of the casing on the outer periphery thereof Vand having inwardly extending flanges which surround the heads and engage with the flanges thereon to clamp the heads to the casing, and a Vrotor in the casing having journals at its opposite ends mountedL Vin said heads eccentricallythereof and also ofthe outer pe-V riphery of the casing; there being a motiveV fluid inlet port in one of the heads andan outlet port in the casing, said rotor having blades adapted to pass said ports successively in the movements of the rotor, and one of said journals being extended and having'a tool mounted on its extended end.
'2. A boiler tube cleaner having a motor casing adapted to be entered into a tube, 'a rotor eccentrically mounted in said casing and having a projecting journal eccentric to the casing and consequently eccentric to the tube, and a tool having a fiexible connection to the j ournal.
3. A boiler tube cleaner comprising aV cylindrical motor casing adapted to be cntered into a tube,`a shaft projecting from the end of the casing and eccentric to the axis thereof, vmeans in the casing to rotatethe shaft, and a tool iiexibly connected to the outer end of the shaft. f
In testimony whereof, I have hereunto set Y my hand. y
HOUGHTON L. NEEDI-IAM.
Copies of this patent may be obtained for five cents each, by addressing' the Commissioner of Patents,
Washington, D. C.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1313725A true US1313725A (en) | 1919-08-19 |
Family
ID=3381217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US1313725D Expired - Lifetime US1313725A (en) | Boiler-tube cleaner |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1313725A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2843090A (en) * | 1956-05-09 | 1958-07-15 | Flexible Drives Gilmans Ltd | Rotary fluid pressure motors |
-
0
- US US1313725D patent/US1313725A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2843090A (en) * | 1956-05-09 | 1958-07-15 | Flexible Drives Gilmans Ltd | Rotary fluid pressure motors |
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