US1785821A - Boiler cleaner - Google Patents

Boiler cleaner Download PDF

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US1785821A
US1785821A US40424A US4042425A US1785821A US 1785821 A US1785821 A US 1785821A US 40424 A US40424 A US 40424A US 4042425 A US4042425 A US 4042425A US 1785821 A US1785821 A US 1785821A
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nozzle
sleeve
cleaning fluid
nozzles
boiler
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US40424A
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Norman L Snow
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Diamond Power Specialty Corp
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Diamond Power Specialty Corp
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28GCLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G3/00Rotary appliances
    • F28G3/16Rotary appliances using jets of fluid for removing debris
    • F28G3/166Rotary appliances using jets of fluid for removing debris from external surfaces of heat exchange conduits

Definitions

  • the invention relates to-boiler cleaners and has for its object to'p rovide animproved boiler cleaner having a rotary blower nozzle adapted to discharge a cleaning fluid upon the boiler'tubes and other parts of the boiler to be cleaned. 7
  • Figure l is an elevational view of one form of my boiler'cleaner shown mounted in the boiler wall;
  • Figure 1? is a like view of'a modified construction of boiler cleaner Figure 2 is sectional view through 21-2 of Figure 1;
  • Figure 3 is aview corresponding to Figure 2 showing a modification
  • Figure 4 is a like view illustrating a further modified form
  • Figure 5 represents a side elevation view of the construction shown in Figure 4.
  • Figure 7 is an elevation view partly in section illustrating a modified construction of the sleeve and nozzle arrangeinent.
  • Figure 8 is a sectional view through 8-8 of Figure 7 7
  • reference character 10 indicates the blower head which may be mounted in an opening 11 extending transof the housing 13, .
  • the element 14 is preferably non-rotative and is adapted to conduct a suitable cleaning fluid from the supply pipe 17 and head 10, longitudinally of the 7 element 14.
  • Rotatably mounted on the distal end'ofthe element 14 is a sleeve or member provided w th one or more cleaning ,fiUlCl 1925. Serial 1%. 40,424.
  • this opening may beva ried in accordance with the desired arc of active discharge of the cleaning fluid from the nozzles 19. As shown in Figure 2, it is preferable to extend the opening for at least a semi-circumference so that one of the discharge nozzles will at all times register with the opening 21, where the nozzles are arranged as shown in Figure 2.
  • a rod 24 Secured to the end of the element 14 and extending longitudinally within the same, is a rod 24 havinga threadedportion 25 extending through the head 10 for engagement by .a wheel 26.
  • element 14 In operation of the boiler cleaner shown in Figures 1 and 2, upon admission of cleaning fluid from the supply pipe 17, element 14 is urged outwardly from housing 13 by the piston action of the cleaning fluid against the end surface 27 of the element 14.
  • Wheel 26 may be manually or otherwise rotated to co-act with the threaded portion 25 of the rod 24 to either permitprojection or withdraw the element 14 so as to move therewith the sleeve 15 and nozzles 19 to position the latter at a plurality of points for cleaning the boiler tubes 20 and other parts of the boiler.
  • the cleaning fluid conducted along the element 14 passes to the nozzles 19 by reason of the opening 21, the reaction ofthe jets of cleaning fluid causing rotation of the sleeve 15 in the direction of the arrow shown in Figure 2.
  • the pins (iii 22 will 'cooperate with the notches 23 to produce a shuttling movement of the sleeve 15 and thereby dani'pen the speed of rotation of the sleeve to any desired degree.
  • any number of telescoping sections may be provided to permit extension of the element 14 for any desired distance inside the boiler wall 12.
  • the opening 21 is preferably of suffici'e'nt length to at all times registervvith one ofthe nozzles 19. lVith this arrangement initial rotation of the: sleeve 15 is always assured.
  • a sleeve l5 is shown provlded with the discharge nozzles 19 corresponding to the sleeves shown in Figures 1 oils; 14b is the fluid conducting element about which, the sleeve 15?) is adapted to re; tate.
  • the element 146 is'provided with fluid conducting openings 21?) for supplying fluid to the -cir'cumferentially extending conduits 28, formed between element 146'Eand sleeve;
  • Fifojections 29 may berpr'ovided inward iy'enfthe sleeve 155m hold the sleeve in spaced relation with the relatively fixed element' 15th. Tnthis construction the cleaningfluid passes from theelement 14?)" through the openings 21b to the discharge nozzles 19?) by reason of the circumferential conduits 23; V Vith this arrangement an eiiective'blowihg are state may be obtained.
  • the element 14 may be provided with posiits rotative movement.
  • a counterweight- 31 of s itable' size may be suitably positioned on the sleeve 15 so astobale ance the sleeve such a mannerithst when the sleeve is in static equilibrium (When'the cleaning fluid is turned-oil the system,) the inlet to the nozzle l9 'will be located opposite the port 32 which conducts the fluid from the element 14 to the nozzle.
  • the counterweight 31 during the rotation of the sleeve when the cleaning fluid being suppliedto the nozzle is that of a fly wheel.
  • the counterweight decreases the rate of acceleration of the sleeve when-the chaning fluid is first introduced o e system, but causes the same to runknore oothly during its rotation.
  • the nozzles may be'ot' varyi i and var ing blowing-zero desired.” As shown in Figures 7 and 8, all of the nozzle may be positioned-so that the reacti cleaningiiiiid discharged to produce rotation ofthe sleeve same direction? Areuate slots 2i videdfOr'oOndticting the cleaning fluid tic-inf the element le to the respective discharge nozzles 19 If these slots are all cut on sub stantially' the same are with the ends oi is obvious that asuitablo numbe and-arrangement or nozzles mi ht he .provided so ine function of .ie slots aligned as would be general practice, it
  • the nozzle being so arranged that the reaction of the cleaning fluid issuing from the same will impart a rotary movement to the mem-' her and means for imparting a shuttling movement to said member upon rotation of the same.
  • a boiler cleaner a relatively fixed element, a member rotatable on said element, and provided with a discharge nozzle, the said member having a notched portion, means for supplying a cleaning fluid to said nozzle, the nozzle beingso arranged that the reaction of the cleaning fluid issuing from the same will impart a rotary movement to the member, and means acting on the notched portion of said member for effecting a shuttling of said member to oppose the rotation thereof.
  • a relatively fixed element In a boiler cleaner, a relatively fixed element, a member rotatable on said element, and provided with a discharge nozzle, means for supplying a cleaning fluid to said nozzle, the nozzle being so arranged that the reaction of the cleaning fluid issuing from the same will impart a rotary movement to the member, and means for producing a shuttling movement of said member on the said relatively fixed element for opposing the rotary f movement of the member.
  • a relatively. fixed element a sleeve rotatable on said element and provided with a discharge nozzle, means for supplying a cleaning fluid to said nozzle, the nozzle being so arranged that the reaction vof the cleaning fluid issuing from the same will impart a rotary movement tothe sleeve, said sleeve being provided with circumferentially' extending notches, and pins carried by the said element engageable with said notches to effect a shuttling movement of the sleeveasthelatter rotates 6.
  • a member rotatable on said element In a boiler cleanena relatively fixed element, a member rotatable on said element," the'said member being provided with a discharge nozzle and being provided with notched edge portions, means for supplying a cleaning fluid to said nozzle, the nozzle being so arranged that the reaction of thecleaning fluid issuing from the same will impart a rotary nt to the member, and a mem-Y ber carried by said fixed element and en.- gageable with the notched edges of said ro-v tatable member for opposing the rotation of the rotatable member.
  • a boiler cleaner a relatively fixedelement, a member rotatable on saidelement and provided with a discharge nozzle, means for supplying a cleaning fluid to said nozzle, the nozzle being so arranged that the reaction of the cleaning fluid issuing from the same will impart a rotary movement to the member, and means for moving the said member and nozzle as a unit in the direction of the length of the element, said last mentioned means including a threaded rod and a wheel threadedly engageable with said rod.
  • a boiler cleaner a relatively fixed element, a member rotatable on said element and provided with a pair of discharge nozzles, means for conducting a cleaning fluid to said'nozzles, the nozzles being so arranged that the reaction of the cleaning fluid dis-' charged from one of said nozzles will produce rotation of the said member while the reaction of the cleaning fluid discharged from the other of said nozzles will retard the rotation of the said member.
  • a boiler cleaner a relatively fixed element, a member rotatable on said element and provided with a pair of discharge nozzles, means for conducting a cleaning fluid to said nozzles, the nozzles being so arranged that the reaction of the cleaning fluid discharged from one of said nozzles will produce rotation of the said member while the reaction of the cleaning fluid discharged from the other of said nozzles will retard the rotation of the said member, the first said nozzle having a greater discharge capacity than the second said nozzle.
  • a boiler cleaner comprising a fluid conducting element provided with an opening, a member rotatable on said element and provided with a discharge nozzle adapted to communicate during portions of the arc of rotation of the said member with said opening, the nozzle being so arranged that the reaction of the cleaning fluid issuing from the same will impart a rotary movement to the member, andmans automatically eflfec: e ti'v'e upon shuttin g ofl' the sup l of cleaning" fluid to the nozzle-for moving the said;
  • a boiler cleaner coniprisinga fluid conducting element provided with an opening, a
  • the member rotatable on said element and pro Vided with a discharge nozzle adapted to communicate during portions of the arc of rotation of the said member with said open ring; the nozzle being'so arranged that the" reaction of the cleaning fluid issuing from g the same'will impart 'arotary movement'tofl the member, and a counterweight so proportioned and carried by-the member as upon shutting off the supply ofc'leaning fluid to the noz'zle to move the said member into a 20 position establishing communication between v the said'opening and the nozzle.
  • A'boiler' cleaner comprising a fluid conducting element provided wit-h an opening; a member rotatable on said element and pro;

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles (AREA)
  • Cleaning In General (AREA)

Description

Dec. 23, 1930. N. 1.. SNOW 1,785,821
BOILER CLEANER Filed June 29, 1925 War/72m L- Snow PatentedDec. 23, 1930 .UNIT
PATENT o FIcE uonin'An'nsnow, or nnrnom vnomcrian, Assrsnon TO DIAMOND POWER SPECIALTY oonronnrron, or nnrnorr, MICHIGAN, A CORPORATION or MICHIGAN BOILER CLEANER Application filed .Tune 29,
The invention relates to-boiler cleaners and has for its object to'p rovide animproved boiler cleaner having a rotary blower nozzle adapted to discharge a cleaning fluid upon the boiler'tubes and other parts of the boiler to be cleaned. 7
- *Referring to the accompanying drawings in which like reference characters indicate corresponding parts i Figure l is an elevational view of one form of my boiler'cleaner shown mounted in the boiler wall;
Figure 1? is a like view of'a modified construction of boiler cleaner Figure 2 is sectional view through 21-2 of Figure 1;
Figure 3 is aview corresponding to Figure 2 showing a modification;
Figure 4 is a like view illustrating a further modified form;
Figure 5 represents a side elevation view of the construction shown in Figure 4;
versely through the boiler wall 12. 13 is a' Figure'fl is a view corresponding to Figure 2 showing a still further modified constr-uction;
Figure 7 is an elevation view partly in section illustrating a modified construction of the sleeve and nozzle arrangeinent; and
Figure 8 is a sectional view through 8-8 of Figure 7 7 Referring to F igure 1, reference character 10 indicates the blower head which may be mounted in an opening 11 extending transof the housing 13, .The element 14 is preferably non-rotative and is adapted to conduct a suitable cleaning fluid from the supply pipe 17 and head 10, longitudinally of the 7 element 14. Rotatably mounted on the distal end'ofthe element 14 is a sleeve or member provided w th one or more cleaning ,fiUlCl 1925. Serial 1%. 40,424.
discharge nozzles 19 positionedto discharge a Jet of cleaning fluid tangentially of the element 14. 20. represents the usual boiler tubes.
19. The length of this opening may beva ried in accordance with the desired arc of active discharge of the cleaning fluid from the nozzles 19. As shown in Figure 2, it is preferable to extend the opening for at least a semi-circumference so that one of the discharge nozzles will at all times register with the opening 21, where the nozzles are arranged as shown in Figure 2. I
Rotation of the sleeve 15 and nozzles 19 will be produced by the reaction of the cleaning fluid discharged from thenozzles. In orderto dampen the speed of rotation of the sleeve 15 on the relatively fixed element 14, pins 22 are fixedly mounted on element 14 and areadapted to cooperate with the circumferentially extending notches 23 of the sleeve 15 for producing a shuttling movement of the sleeve. 7
Secured to the end of the element 14 and extending longitudinally within the same, is a rod 24 havinga threadedportion 25 extending through the head 10 for engagement by .a wheel 26.
In operation of the boiler cleaner shown in Figures 1 and 2, upon admission of cleaning fluid from the supply pipe 17, element 14 is urged outwardly from housing 13 by the piston action of the cleaning fluid against the end surface 27 of the element 14. Wheel 26 may be manually or otherwise rotated to co-act with the threaded portion 25 of the rod 24 to either permitprojection or withdraw the element 14 so as to move therewith the sleeve 15 and nozzles 19 to position the latter at a plurality of points for cleaning the boiler tubes 20 and other parts of the boiler. The cleaning fluid conducted along the element 14 passes to the nozzles 19 by reason of the opening 21, the reaction ofthe jets of cleaning fluid causing rotation of the sleeve 15 in the direction of the arrow shown in Figure 2. As the sleeve rotates the pins (iii 22 will 'cooperate with the notches 23 to produce a shuttling movement of the sleeve 15 and thereby dani'pen the speed of rotation of the sleeve to any desired degree. It will be apparent that any number of telescoping sections may be provided to permit extension of the element 14 for any desired distance inside the boiler wall 12. As shown in lFigure 2 the opening 21 is preferably of suffici'e'nt length to at all times registervvith one ofthe nozzles 19. lVith this arrangement initial rotation of the: sleeve 15 is always assured.
The boiler cleaner shown in Figurel dilifers from the construction shown in Figure l 'in'thatthe telescopic feature is omitted: In Figure 1 the blower head 1O isprovided with a non-rotative' fluid conducting element 14 At a plurality of desired points longitudinally of this element are positionedsleeves 15 provided with cleaning fluid discharge-nozzles 1-9 rotatable with the-respective sleeves in the same manner as that shown in' Figure 1'.
Referring to Figure 8, a sleeve l5 is shown provlded with the discharge nozzles 19 corresponding to the sleeves shown in Figures 1 oils; 14b is the fluid conducting element about which, the sleeve 15?) is adapted to re; tate. The element 146 is'provided with fluid conducting openings 21?) for supplying fluid to the -cir'cumferentially extending conduits 28, formed between element 146'Eand sleeve;
15?). Fifojections 29 may berpr'ovided inward iy'enfthe sleeve 155m hold the sleeve in spaced relation with the relatively fixed element' 15th. Tnthis construction the cleaningfluid passes from theelement 14?)" through the openings 21b to the discharge nozzles 19?) by reason of the circumferential conduits 23; V Vith this arrangement an eiiective'blowihg are state may be obtained.
ln' hi'gures land 5, I have-illustrated a mojdified 'arrangement for dampening or par tiahy balancing the reactions from the clean;
ing fluid discharge nozzles. In these figures,
it represents the relatively fixed fluid conducting element upon which is rotatably mounted the sleeve 150 provided witha c1eaning fluid discharge nozzle 19c. Opposite the nozzle 196 is mounted a smaller nozzle 19d in the same direction as the nozzle 196;
fa Thus, the reaction of the cleaning fluid es cap'njg from nozzlellld will tend to produce rotation of sleeve 150 in a direction opposite from that produced by the reaction of the fluid diseharged from the larger nozzle 19c. The
reaction of the fluid escaping from nozzle" l9c will cause the sleeve 150 to rotate inthe dihe'etion'shown by thearrow' in Figure 4, the nozzle 1965 serving: to only partially counterct the ehect of the reaction of the nozzle so 7 as to permit rotation of the sleeve 15 it a reduced rate'of speed whieh may he readlly regulated bythe relative'positions or capacities of discharge" of'the nozzlesmounted on the sleeve 15?. -Cle'aning fluid is con- 1 ducted to the nozzles, by reason of the open ings 21 and the circumferential conduits 28.
The element 14 may be provided with posiits rotative movement.
'ti-oning pins 30 for guiding the sleeve 15 in Referring to -Figure 6, Q have provided means for assuring that the discharge r102 zle', when the cleaning fiuidis' turned off the system, will be positioned in; registration w th the fluid conducting passages so as to always be in position forthe next operation or" the system. in this figure, the relatively fixed-fluid conducting element in is shown mounting. the rotate le sleeve which is provided with the discharge nozzle '19? A counterweight- 31 of s itable' size may be suitably positioned on the sleeve 15 so astobale ance the sleeve such a mannerithst when the sleeve is in static equilibrium (When'the cleaning fluid is turned-oil the system,) the inlet to the nozzle l9 'will be located opposite the port 32 which conducts the fluid from the element 14 to the nozzle.
the counterweight 31 during the rotation of the sleeve when the cleaning fluid being suppliedto the nozzle is that of a fly wheel. Thus, the counterweight decreases the rate of acceleration of the sleeve when-the chaning fluid is first introduced o e system, but causes the same to runknore oothly during its rotation. The forces incl the discharge of the cleaning fluid in the nozzle 19 tending to prouuce'friction be cooperation with the notches 23 to produce a shuttlingmoveinent of tlie sleeve in a man ner,correspondingwiththat described in con nestles with the boiler v l ure 1. The nozzles may be'ot' varyi i and var ing blowing-zero desired." As shown in Figures 7 and 8, all of the nozzle may be positioned-so that the reacti cleaningiiiiiid discharged to produce rotation ofthe sleeve same direction? Areuate slots 2i videdfOr'oOndticting the cleaning fluid tic-inf the element le to the respective discharge nozzles 19 If these slots are all cut on sub stantially' the same are with the ends oi is obvious that asuitablo numbe and-arrangement or nozzles mi ht he .provided so ine function of .ie slots aligned as would be general practice, it
Q tioned opposite one oftheseslots when that one of the nozzles 19 will be left posi- Q supply of cleaningv fluid is shut off from the systemi Sleeve will thus be rotated when tion with its port 21 when the cleaning fluid supply was shut ofi. lVith such constructon,
therefore, it is thus impossible for the sleeve 1 5 to beleft in a dead position. Means is thus provided to insure rotation of the sleeve regardless of the positionin which it is left when the supply of cleaning fluid is shut ofi. i
What I claim'as my invention is 1. In a boiler cleaner, a relatively fixed element, a member rotatable on said element,
andprovided with a discharge nozzle, means for supplylng a cleaning fluid to said nozzle,
the nozzle being so arranged that the reaction of the cleaning fluid issuing from the same will impart a rotary movement to the mem-' her and means for imparting a shuttling movement to said member upon rotation of the same. 1 Y
2. In a boiler cleaner, a relatively fixed element, a member rotatable on said element, and provided with a discharge nozzle, the said member having a notched portion, means for supplying a cleaning fluid to said nozzle, the nozzle beingso arranged that the reaction of the cleaning fluid issuing from the same will impart a rotary movement to the member, and means acting on the notched portion of said member for effecting a shuttling of said member to oppose the rotation thereof. I v r 8. In a boiler cleaner, a relatively fixed element, a member rotatable on said element, and provided with a discharge nozzle, means for supplying a cleaning fluid to said nozzle, the nozzle being so arranged that the reaction of the cleaning fluid issuing from the same will impart a rotary movement to the member, and means for producing a shuttling movement of said member on the said relatively fixed element for opposing the rotary f movement of the member.
' 1 of the cleaning fluid issuing from the same will impart a rotary movement to the memher, and means for moving the said member and nozzle asa unit in the direction of the length of the element upon. rotation of the said member. 7
5. In a boiler cleaner, a relatively. fixed element, a sleeve rotatable on said element and provided with a discharge nozzle, means for supplying a cleaning fluid to said nozzle, the nozzle being so arranged that the reaction vof the cleaning fluid issuing from the same will impart a rotary movement tothe sleeve, said sleeve being provided with circumferentially' extending notches, and pins carried by the said element engageable with said notches to effect a shuttling movement of the sleeveasthelatter rotates 6. In a boiler cleanena relatively fixed element, a member rotatable on said element," the'said member being provided with a discharge nozzle and being provided with notched edge portions, means for supplying a cleaning fluid to said nozzle, the nozzle being so arranged that the reaction of thecleaning fluid issuing from the same will impart a rotary nt to the member, and a mem-Y ber carried by said fixed element and en.- gageable with the notched edges of said ro-v tatable member for opposing the rotation of the rotatable member. t I
7. In a boiler cleaner, a relatively fixedelement, a member rotatable on saidelement and provided with a discharge nozzle, means for supplying a cleaning fluid to said nozzle, the nozzle being so arranged that the reaction of the cleaning fluid issuing from the same will impart a rotary movement to the member, and means for moving the said member and nozzle as a unit in the direction of the length of the element, said last mentioned means including a threaded rod and a wheel threadedly engageable with said rod.
8. In a boiler cleaner, a relatively fixed element, a member rotatable on said element and provided with a pair of discharge nozzles, means for conducting a cleaning fluid to said'nozzles, the nozzles being so arranged that the reaction of the cleaning fluid dis-' charged from one of said nozzles will produce rotation of the said member while the reaction of the cleaning fluid discharged from the other of said nozzles will retard the rotation of the said member.
9. In a boiler cleaner, a relatively fixed element, a member rotatable on said element and provided with a pair of discharge nozzles, means for conducting a cleaning fluid to said nozzles, the nozzles being so arranged that the reaction of the cleaning fluid discharged from one of said nozzles will produce rotation of the said member while the reaction of the cleaning fluid discharged from the other of said nozzles will retard the rotation of the said member, the first said nozzle having a greater discharge capacity than the second said nozzle.
10. A boiler cleaner comprising a fluid conducting element provided with an opening, a member rotatable on said element and provided with a discharge nozzle adapted to communicate during portions of the arc of rotation of the said member with said opening, the nozzle being so arranged that the reaction of the cleaning fluid issuing from the same will impart a rotary movement to the member, andmans automatically eflfec: e ti'v'e upon shuttin g ofl' the sup l of cleaning" fluid to the nozzle-for moving the said;
member into aposition'e'stablishi-ng' commu nication between thesaid opening and the nozzle. l1. A boiler cleaner. coniprisinga fluid conducting element provided with an opening, a
member rotatable on said element and pro Vided with a discharge nozzle adapted to communicate during portions of the arc of rotation of the said member with said open ring; the nozzle being'so arranged that the" reaction of the cleaning fluid issuing from g the same'will impart 'arotary movement'tofl the member, and a counterweight so proportioned and carried by-the member as upon shutting off the supply ofc'leaning fluid to the noz'zle to move the said member into a 20 position establishing communication between v the said'opening and the nozzle.
V 12. A'boiler' cleaner comprising a fluid conducting element provided wit-h an opening; a member rotatable on said element and pro;
' Vided' with at discharge nozzle adapted to 7 Communicate during portions of the arc of rotation of the said member with said opening, the nozzle being so arranged that the reaction ot'the' cleaning fluid issuing from 3 the samewill impart a rotary movement to" tliemember, and a counterweight so proper-w tioned and carried by the member as upon vshutting off the supply of cleaning fluid to the-nozzle to move the said member into a 35 positionestablishing communicationbetween V the said opening and the nozzle, said counterweightacting upon rotation of the said mem her to decrease the initial acceleration of the member and to minimize the friction between 49 the member and element produced by the cleaning fluid issuing from the nozzle.
In testimony whereof I ai'fix my signature.
' NORMAN L. SNOW.
US40424A 1925-06-29 1925-06-29 Boiler cleaner Expired - Lifetime US1785821A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247968A (en) * 1962-07-19 1966-04-26 Avy L Miller Swimming pool water delivering and withdrawal system
US3311092A (en) * 1965-12-20 1967-03-28 Combustion Eng Type sootblower for cleaning the tubes of furnace walls
US4028136A (en) * 1974-12-03 1977-06-07 W. Schlafhorst & Co. Method and device for cleansing spinning turbines of a spinning machine
US4567622A (en) * 1984-03-16 1986-02-04 The Babcock & Wilcox Company Sootblower nozzle apparatus
US4718606A (en) * 1984-09-11 1988-01-12 Multinorm Bv Method and device for agricultural crop spraying
US6170117B1 (en) * 1999-11-15 2001-01-09 Abb Air Preheater, Inc. Multiple rake sootblower with internal valving manifold

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247968A (en) * 1962-07-19 1966-04-26 Avy L Miller Swimming pool water delivering and withdrawal system
US3311092A (en) * 1965-12-20 1967-03-28 Combustion Eng Type sootblower for cleaning the tubes of furnace walls
US4028136A (en) * 1974-12-03 1977-06-07 W. Schlafhorst & Co. Method and device for cleansing spinning turbines of a spinning machine
US4567622A (en) * 1984-03-16 1986-02-04 The Babcock & Wilcox Company Sootblower nozzle apparatus
US4718606A (en) * 1984-09-11 1988-01-12 Multinorm Bv Method and device for agricultural crop spraying
US6170117B1 (en) * 1999-11-15 2001-01-09 Abb Air Preheater, Inc. Multiple rake sootblower with internal valving manifold

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