US 1147374 A
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Description (OCR text may contain errors)
CHIMNEY LINING APPARATUS.
APPLICATION FILED MAYH,1914.
1,147,374. Patented July 20, 1915.
2 SHEETS-:SQHIiETI 1.
WITNESSES: mn/E/vmR g Eng Wall C06.
COLUMBIA PLANDGRAPH CO.,WASHING1'0N, D. c.
Am Z a I W. COE.
CHIMNEY LINING APPARATUS.
APPLICATION FILED MAY 11, I914. 1,117,374., I Patented July 20, 1915.
2 SHEETS-SHEET 2.
A al'y COLUMBIA PumouRAPl-x COuWASHlNOTON, D. c.
WASH coin, or KANSAS CITY, nissounr.
To all whom it may concern Be it known that I, WASH Con, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Chimney-Lining Apparatus, of which the following is a specification.
This invention relates to apparatus for relining chimneys with cement mortar and has for its object to produce apparatus of this character whereby one man can reline a chimney efficiently and economically.
With thisgeneral object in view the invent-ion consists in certain novel and peculiar features of construction and organization as hereinafter described and claimed; and in order that it may be fully understood reference is to be had to the accompanying drawings, in which Figure 1, is a vertical section of a part of a roof of a house and a chimney thereof, and also shows apparatus for scraping or cleaning and relining the chimney with a suitable plastic'material. Fig. 2, is a top plan view of the construction shown by Fig. 1. Fig. 3, is a central vertical section of a water and mortar spraying nozzle, and also shows a rod of a type to be used in relining the chimney having a slight bend or curvature near its lower end. Fig. 4, is an enlarged fragmentary view showing the jointed construction of a part of the tool-- carrying rod. Fig. 5, is an enlarged central vertical section of a finishing tool in the nature of a float. Fig. 6, is an inverted plan view of the same. Fig. 7, is an enlarged vertical section of a plastering tool in the nature of a flexible trowel to apply a rough coatingof mortar on the inner side of the chimney. Fig. 8, is an inverted plan view of the troweling tool.
In the said drawings, 1 indicates a roof of a building and 2 the chimney thereof.
3 indicates a suitable staging erected upon the roof around the upper end of the chimney and of sufficient strength to safely sustain the weight of one or two men and the considerable supply of material for relining.
the chimney. Adjacent the staging is a hoist comprising standards 4, a drum 5 journaled in the standards, and a crank handle 6 and cable 7 secured to the drum, the latter extending diagonally over the chimney at one corner thereof so that the tools and connections to go into the chimney may be intro- Specification of Letters Patent.
Application filed May 11, 1914.
Patented J uly 20, 1915.
Serial No. 837,753.
duced therein or removed therefrom without interference on the part of the hoist and without the necessity of making the latter unduly high.
Referring now'in detail to the appliances for performing the actual work of cleaning and relining the chimney with a plastic coating, 8 is a pyramidal shaped nozzle of size to fitloosely in a small bore chimney and provided at its lower margins with jet openings 9. This nozzle is preferably made of sheet metal and the bottom has a central opening around which is secured an inter nally threaded collar 10 and'has avertical tube 11 extending through it about half way between collar 10 and the outer margin of the bottom, this tube 11 accommodating slidingly the cable 7 as hereinafter more particularly referred to. The upper end of the nozzle is internally threadedto receive the lower threaded end of one ofa series of coupled pipes 12, there being in the initial part of the operation suflicient pipes to extend from the top of the chimney to about the lowest stove pipe opening in the chimney and mounted removably upon the topmost pipe section is a funnel 13 whereby water or semi-liquid mortar or cement can be readily poured to supply the nozzle 8.
A pipe 14 preferably composed of a series of sections screw-threaded together in any suitable 'manner and of considerably less diameter than pipes 12, extends through the pipe 12, the undermost of said sections l l being secured in the collar 10. The pipe 1% is, preferably provided with a spider 15 near its upper end engaging the funnel 13 for the purpose of centralizing the upper end of said piping. A. rod 16, of substantially greater length than the pipe 143' extends slidingly through the same and is prevented thereby from material lateral movement. This rod 16 is composed of a series of sections coupled together and at its uppermost section is provided with a removable handle 17 whereby the rod can be turned for a purposewhich hereinafter appears, and to prevent the rod from slipping down until its handle engages the upper end. of, pipes 14, the rod is provided with a collar 18 which rests on the collar 19 having an arm 20 to which is attached. the lower end. of cable 7, the weight of the parts within the chimney being therefore carried by the housing.
Coupled to the lower end of the rod 16 at a point just below'the collar 19 by preference,- is a rod 21 provided at suitable distances apart with threaded portions 22 and 23. Engaging the threaded portions 22 is a threaded collar 2 1 provided with outwardly projecting ears 25 to which are pivoted the lower ends of links 26. The links extend upwardly and outwardly and are pivotally connected at their upper ends to rods 27 extending loosely through a tool composed preferably of a pair of superposed trowels 28 and 29 and through washers 3O engaging the upper and lower sides of said trowels, and to hold the trowels in proper relative position and to bend them downward or upward as desired for the purpose of accommodating chimneys of different size, the rods 27 are provided with collars or enlargements 31 underlying the said trowels and collars or enlargements 32 overlying the trowels. Said trowels are composed of a rubberized fabric 0 any flexible material having considerable stiffness and durability and fitted loosely on a rod 21 between collars or enlargements 33 thereof and provided with stiffening plates 34 to guard against buckl ing or bending except at a material distance from the rod, it being understood that the connection between the rod and trowel memhers is a swivel connection so that when the rod 21 is turned in one direction or the other the toggles composed of links 26 and rods 27 are expanded or contracted for the purpose of spreading the trowel members or contracting them. In practical operation as it is essential that the trowel members shall bend downward at all four margins to facilitate its bending action and avoid distorting said members from a true rectangular form, it is necessary that provision shall be made to facilitate their buckling along diagonal lines and for this purpose each of said trowel members is scored or slitted diagonally as at 28. Secured upon the rod 21 in any suitable manner over the central portion of the troweling tool is an upwardly tapering hood 35, preferably conical which will prevent mortar from accumulating upon the central portion of the trowel where it can perform no function and where it might solidify and interfere with the proper manipulation of rod 21. A short distance below the troweling tool is the finishing tool or float for smoothing the rough coating of plaster applied to the inside of the chimney by the troweling tool in a manner hereinafter explained. This finishing tool should fit snugly in the chimney and may be made in different sizes. If of fixed size, however, more or less difiiculty will be experienced in lowering it to a point where its operations should begin provided a coating of mortar of reasonable thickness is to be applied to the chimney. Because of this and also because it would be diilicult to lower a. finishing tool of fixed size within a chimney if the latter contained the slightest bend it is desirable to provide a tool which is flexible to an extent so that it can be readily lowered to the desired point, and afterward expanded through the turning of the rod 21 when the latter is turned to expand the troweling tool.
A finishing tool which will perform good work should be made of metal and this 1 eing true this variation in size can be accomplished for effective operation only in chin neys which difler but a little in size. 1 therefore make the tool which is of pyramidal form so that its lower edge shall be perfectly square and horizontal for an average chimney and therefore capable of applying a coating of uniform thickness to the four walls of the chimney. My preferred construction for this tool is to make it of four similar sections of right angle shape in cross section and upwardly tapering form in side elevation. Two sections 36 arranged at diagonally opposite points fit snugly upon two similar sections 37 forming the other corners of the tool, the adjacent arms of the sections fitting flatly together as shown in,
Fig. 6, and secured to the corners of the sections near their lower ends are brackets 38. The two brackets 38 attached to the sections 36 engage opposite arms 9 which extend at right angles to each other and engage the inner sides of the adjacent arms of sections 37 so as to hold the latter and the overlapping arms of sections 36 flatly together at all times.
Pivoted at their outer ends to brackets 38 and extending inward therefrom are links 10, the same being pivoted at their inner ends to ears on a threaded collar 41 mount" ed on the threaded portion 23 of rod 21. The upper ends of the sections 36 and. 37 are provided with loops 4:2 pivotally engaging ears on a collar 43 swiveled on red 21 be tween collars 14 secured thereon, and suitably secured on red 21 just above the finish ing tool is a hood 15 which will guard against any mortar which may perhaps splatter inwardly as the trowel passes it, from accumulating and hardening at the upper end of the float or finishing tool and interfering with the ready adjustment thereof. On the lower end of the rod 21 is rigidly but removably secured a stiff metal brush 46 whereby clinging mortar may be removed from the walls of the chimney preliminary to the relining operation.
Assuming that a chimney is to be relined, the apparatus is arranged as shown in Fig. 1, the rod and the pipes being provided with a suflicient number of sections to lower the nozzle 8 to a point below the lowest fine opening communicating with the chimney. Water or any suitable solution for cleaning soot from the chimney will be introduced through the funnel and pipe 12 into the nozzle 8 and sprayed thereby upon the walls of the chimney and then the brush can be rotated or oscillated to scrape the old plaster and loose plaster from between the bricks thereof- As this operation is performed the hoist will be operated to intermittently lift the apparatus a short distance at a time and as the height of the removable handle gets too high the upper sections of the rod and pipes will be removed and the handle again placed upon the rod to enable the brush to be revolved or oscillated. This operation continues until the chimney has been scraped by the brush for its full height or as high as it is deemed advisable to remove the old and disintegrated mortar and in this connection it is'to be understood that this relining is especially necessary in those sections of the country where natural gas is burned to a large extent asit has been found that heating with natural gas results in a comparatively rapid disintegration of the mortar in chimneys and is the frequent cause of fires in residences.
After the chimney has been cleaned and scraped in the manner explained, the brush should be removed and then the apparatus is relowerecl as before with the troweling and float or finishing tools collapsed. Said tools are then rexpanded and semi-liquid mortar poured into the funnel 15, from which it will flow or be forced outwardly upon the walls of the chimney and upon the troweling tool so that as the hoist is turned slightly the troweling tool will apply a rough coat of the mortar upon said walls and between the bricks where it was dislodged either through disintegration or by the action of the brush. The float or finishing tool following the troweling tool will smooth the coat applied by the latter and in cidentally compress it more firmly and in more uniform thickness to the walls of the. chimney.
The operations described are continued until the chimney is relined to the desired point, the rod and pipes being shortened at intervals in the manner and for the reason explained in connection with the operation of the brush.
By taking suitable precautions as the rod and pipe sections are removed as they successively fully emerge from, the chimney in the upward adjustment of the apparatus, there will be no danger of unscrewing sections at a lower point. If desired however, the rod sections which are the most inconvenient of access may have their couplings 47 pinned as at l8 to one section and equipped with spring actuated catches 4-9 to engage sockets 50 in the underlying rod section as shown in Fig. i, it being understood that where this construction isemployed pipe 14: will be proportionately of greater diameter than as shown in Fig. 3 with respect to the rod 16.
From the above description it will be ap parent that I have produced apparatus which will permit a chimney to be relined which otherwise would have to be torn down, and while I have-illustrated and described the preferred embodiment of the same, I reserve the right to make all changes falling within the spirit and scope of the appended claims. a
1. An apparatus for relining chimneys, comprising means within the chimney for applying mortar to the walls thereof, a collapsible tool underlying said mortar applying means and adapted to catch and spread the mortar supplied by said means, means for collapsing and expanding said tool, to facilitate its insertion in the chimney and effect its engagement with the walls thereof respectively, and means for hoisting said mortar supplying means and the said tool while the mortar is being supplied by the former to the walls of the chimney.
2. An apparatus .for relining chimneys, comprising means within the chimney for applying mortar to the walls thereof, a collapsible tool underlying said mortar applyingmeans and adapted to catch and spread the mortar supplied by said means, means for collapsing and expanding said tool, to facilitate its insertion in the chimney and effect respectively, a conical hood interposed between andmovable with the mortar applying means and. collapsible'troweling tool to deflect mortar fallin from the former onto the troweling tool at its outer edges, and means for hoisting sa1d mortar supplying means and the saidtool while the mortar is being supplied by the former to the walls of the chimney. v
i 3. In apparatus for relining chimneys with plastic material, a mortar applying means, a troweling tool and a finishing tool, within the chimney and above each other in the order named, means connecting said devices together, means for collapsing the troweling and finishing tools for convenience in. lowering them within the chimney and for reexpanding them until they press against the walls of the chlmney, the trowel-,
ing tool being adapted to catch the mortar from the first-named means and spread the same upon said walls and into the crevices and cracks thereof, and the finishing tool or float to smooth the coating of mortar ap-' plied to the chimney by the troweling tool.
14. In, an apparatus for relining chimneys with plasticmaterial, a mortar applying means, a troweling tool and a finishing tool within the chimney and above each other in theorder named, means connecting said devices together, means for collapsing the troweling and finishing tools for convenience in lowering them within the chimney and for reexpanding them until they press against the walls of the chimney, the troweling tool being adapted to catch the mortar from the first-named means and spread the same upon said walls and into the crevices and cracks thereof, and the finishing tool to smooth the coating of mortar applied to the chimney by the troweling tool, and hoisting means for raising the said devices to cause the mortar to be spread, troweled and tinished.
5. In an apparatus for relining chimneys with plastic material, a mortar applying means, a troweling tool and a finishing tool within the chimney and above each other in the order named, means connecting said devices together, means for collapsing the troweling and finishing tools for convenience in lowering them within the chimney and for expanding them until they press against the walls of the chimney, the troweling tool being adapted to catch the mortar from the first-named means and spread the same upon said walls and into the cracks and crevices thereof and the finishing tool to smooth the coating of mortar applied to the chimney by the troweling tool, a hoisting drum above the chimney, and a cable extending from the hoisting drum down into the chimney and suitably connected for lowering or lifting the said devices within the chimney.
6. In apparatus of the character described, a pipe extending down into a chimney and provided at its lower end with a nozzle, a rod extending downward through said pipe and nozzle, a hoisting cable extending downward into the chimney and engaging said rod below the nozzle, a tube extending through the latter for the accommodation of said cable, an expansible troweling tool mounted on the rod below said nozzle, an expansible finishing tool mounted on the rod below the troweling tool, toggle connections between the rod and said tools, and means for actuating said rod to simultaneously ex pand the troweling and finishing tools to engage the walls of the chimney.
7. In apparatus of the character described, a pipe extending down into the chimney and provided at its lower .end with a nozzle, a rod extending downward through said pipe and nozzle, a hoisting cable extending downward into the chimney and engaging said rod below the nozzle, a tube extending through the latter for the accommodation of said cable, an expansible troweling tool mounted on the rod below said nozzle, an expansible finishing tool mounted on the rod below the troweling tool, toggle connections between the rod and said tools, means for actuating said rod to simultaneously expand the troweling and finishing tools to engage the walls of the chimney, and conical hoods mounted on the rod over the central portions of the troweling and finishing tools.
8. In apparatus of the characted described a pipe extending down into a chimney and provided at its lower end with a nozzle, a rod extending downward through said pipe and nozzle, and provided with a pair of threaded portions, a flexible troweling tool swiveled upon the rod, a threaded collar mounted upon. the uppermost of said threaded portions of said rod, upwardly and outwardly extending links pivotally connecting said threaded collar with the outer portions of said flexible troweling tool, means for turning said rod to effect upward adjustment of said collar on the rod to expand the troweling tool until it presses firmly against the walls of the chimney, and means for gradually raising the nozzle and troweling tool to permit the former to discharge mor tar against the walls and the troweling tool to trowel said mortar upon said walls.
9. In an apparatus of the character de-- scribed, a pipe extending down into a chimney and provided at its lower end with a nozzle, a rod extending downward through said pipe and nozzle, and provided with a pair of threaded portions, a flexible troweling tool swiveled upon the rod, a threaded collar mounted upon the uppermost oi said threaded portions of said rod, upwardly and outwardly extending links pivotally connecting said threaded'collar with the outer portions of said flexible troweling tool, means for gradually raising the nozzle and troweling tool to permit the former to cischarge mortar against the walls and the troweling tool to trowel said mortar upon said walls, an adjustable finishing tool swiveled on the rod below the trowel ing t ol a threaded collar mounted on the other T threaded portion of said rod, links pivotally connecting said collar with the adjustable finishing tool, and means whereby the rod may be turned to effect simultaneous adjustment of said collars on the rod and the consequent expansion of said troweling and finishing tools.
In testimony whereof, I aflix my signa: ture, in the presence of two witnesses.
l/VASH 09E, Witnesses FRANK It. Gnonn, H. G. Rononns.
Co ies of this atent ma be obtained for five cents each, b addressin the Commissioner of Eatents Washington, D. G.