US2241207A

US2241207A - Exhaust pipe and boiler tube collapser and puller

Info

Publication number: US2241207A
Application number: US319069A
Authority: US
Inventors: Kouba Otto
Original assignee: Individual
Current assignee: Individual
Priority date: 1940-02-15
Filing date: 1940-02-15
Publication date: 1941-05-06
Anticipated expiration: 1958-05-06

Description

May 6, 1941. o. KOUBIA 2,241,207

EXHAUST PIPE'AND BOILER .TUBE COLLAPSER AND FULLER Filed Feb. 15, 1940 INVENTOR 0820 Kouab Patented May 6, 1941 EXHAUST PIPE AND BOILER TUBE COLLAPSER AND FULLER Otto Kouba, North Bergen, N. J Application February 15, 1940, Serial No. 319,069

6 Claims.

This invention relates to new and useful improvements in an exhaust pipeand boiler tube collapser and puller.

More specifically, the invention proposes the construction of a device for aiding in removing the exhaust pipes of automobiles and boiler tubes, characterized by a bar adapted to be positioned in a substantially horizontal position and having a gripper member for encircling the pipe or tube to hold the bar in position thereon, and for permitting the frontof the bar to be moved downwards to collapse the top wall of the pipe or tube to permit the device to obtain a grip thereon.

Still further it is proposed that the bar be extended in an aligned position with the axis of the pipe or tube in the collapsed position thereof for permitting the bar to be pulled outwards for disengaging the pipe or tube from the respective object to which it is attached.

Still further it is proposed to characterize the gripper member by a chain having one of its ends securely attached to said-bar and the other of its ends removably attached thereto in a manner to permit the same to beconveniently attached to the end of the'boiler tube or exhaust pipe.

Still further it is proposed to provide the bar with a plurality of tip portions to provide a longer length about which the barmay'be pivoted, and which are adapted to be removed to shorten the length of the bar to permit the same to be more conveniently used in a limited amount of space.

Still further it is proposed to provide a means for adjustably mounting the gripper member in various positions along the end portion of the bar to permit the gripper element to be adjusted to meet the particular requirements of the job at hand. I

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawing, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawing forming a material part of this disclosure;

Fig. 1 is a perspective view of an exhaust pipe and boiler tube collapser and puller constructed according to this invention.

Fig. 2 is a plan view of Fig l showing the collapser and puller upon the end of a portion of pipe.

Fig. 3 is an end elevational view looking in the direction of the line 3-3 of Fig. 2.

Fig. 4 is a side elevational viewlooking in the direction of the line 4-4 of Fig. 2.

Fig. 5 is an elevational view of an exhaust pipe and boiler tube collapser and puller constructed in accordance with this invention.

Fig. 6 is a sectional view on the line 66 'of Fig. 5.

Fig. 7 is an enlarged detailed view of a portion of a collapser and puller constructed according to a still further modification of the invention.

Fig. 8 is a sectional view on the line 8-8 of Fig. '7.

Fig. 9 is a view similar to Fig. '7 but illustrating a further modification of the invention.

Fig. 10 is a view looking in the direction or the line Ill-A0 of Fig. 9.

Fig. 11 is an elevational view of a collapser and puller constructed according to a still further modification.

Fig. 12 is a view looking in the direction of the line l2-I2 of Fig. 11.

The exhaust pipe and boiler tube collapser and puller, according to this invention, includes a bar II! which is adapted to be positioned in a substantially horizontal position upon the end of an exhaust pipe or boiler tube II. The bar I0 is preferably constructed of metal and is provided with an upturned front end portion Ill about which the bar is adapted to be pivoted to assume a position parallel with the axis of the pipe or tube H as shown in Fig. 4.

A gripper member is mounted on the bar l0 adjacent the upturned front end Ill and. is adapted to encircle the pipe or tube H. This gripper element comprises a double headed bolt l2 having its intermediate portion securely ce- .mented to the bar I0 intermediate of its ends.

A length of chain I3 is provided at one end with a ring I3 securely mounted on the bolt l2 or one side of the bar Ill. The other end of the chain [3 is provided with a hook I3 which is adapted to be engaged upon the bolt 12 on the other side of. the bar l0.

The operation of this form of the invention is as follows:

For removing the exhaust pipe of an automobile or a boiler tube the upturned end Ill is rested on the tip of the pipe or tube II in a substantially horizontal position. The hook I3 is removed. from the bolt l2 so that the chain I3 may be engaged across the bottom or the tube H and upwards along the side thereof ll in position.

to be reengaged upon the bolt 12 as shown in Figs. 2 to 4. A bar I is then pivoted downwards to assume a position parallel to the axis of the ipe or tube I l causing the top wall thereof to be collapsed as shown in Figs. 3 and 4 so that the gripper member will take a secure hold of the end of the pipe or tube ll so that when the bar I0 is pulled outwards the pipe or tube will move therewith and be disengaged from the respective object to which it is attached.

According to the'modification of the invention shown in Figs. 5 and 6 the ring l3 of the chain I3 i passed through a bolt I I which is in turn passed through an opening I'll .formed in the bar l0 adjacent the turned end 10 thereof. A flange W is formed on the bolt I4 adjacent the end through which the ring l3 passes and is adapted to contact one face of the bar to. The other end of the bolt l4 carries a nut l5 which is adapted to be clamped against the face of the bar ID for connecting the end of the chain l3 to the bar andfor permitting the chain l3 to be removed therefrom when desired. The free end of the chain I3 carrie a hook .13 which is adapted to be engaged with the ring 13 of the chain I3 after being passed around the pipe or tube I I for holding the chain in position thereon.

The upturned end Ill of the bar I0 is provided with a plurality of removable tip portions w each of which is provided with a reduced shoulder portion 16 provided with threads and which is adapted to be threadedly engaged .into a receiving socket H formed in the adjacent end of its next adjacent tip portion IU or the bar i0. These tip portions it provide a greater surf-ace about which the bar Ill may be pivoted and are adapted to be removed when the :amount of space about the end of the pipe being removed lirnits their use for permitting the puller to be convenient-ly used to remove pipes and tubes regardless of the amount of space around the tube.

In use the end of the bolt I4 towhich the ring [3 is attached will dig into the pipe or tube H while being collapsed for permitting theibar to more securely grip the end thereof.

According to the modification of the inven-- tion shown in Figs. '7 and 8 the construction of the collapser and puller is similar to that previously described except that the ring 13 is securely mounted in position between .a'pa-ir of upwardly extending lugs l8. These lugs I'3 extend from the end portions of a pair of semi-circular It. The bolt 14 is provided with a square head M having a plurality of laterally extending serrations 22 which are adapted to cooperate'with similarly extended serration 23 formed on the adjacent face of the bar I0 on either side of the slot 21 in holding the bolt H in position-on the bar-l0. -A nut is threadedly engaged on the bolt Hf and is adapted to urge the bolt Hf into a position into which the serrations 22 and 23 will beengaged with each other for holding the bolt Thi form of the invention is also provided with reinforcement struts for reinforcing the end portion Hi and to compensate for the weakening effect caused therein by forming the same with the slot 2|. This means comprises a pair of reinforcement struts 24 each of which is mounted upon one side of the bar l0. Each strut 24 comprises a pair of separate section 24 arranged in end alignment. The outer ends of the sections 24 are securely attached to the side walls of the bar i0 adjacent opposite'ends of the slot 2|. These ends are secured in position by means of rivets 25. The adjacent ends of the sections 24 :are provided with threads extended in opposite directions, and a turn buckle 26 is threadwhichhas itsfree ends 21% directed upwards and spaced from each other to receive the end portion l li of the bar to as shown in Fig. 12. The ends 21? oi the strap. 2'! are provided with a plurality of ver-tically aligned openings 28 and the end portion l0 of the bar It! is provided with aplurality of openings 29. A bolt 30 is adapted to be passed through an aligned set of the opening 28 and 29 for pivotally mountingthe bar on the strap 2''! and for causing the strap 21 to be securely engaged about the end of the pipe or tube H. In other respects this form of the invention is similar to th previous forms.

While I have illustratedand described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the prec ise constructions herein disclosed and the right Iis reserved to all changes and modifications com- .ing within the scope of the invention as defined i-n'the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is:

of said chain and'passing through an elongated longitudinally extended slot formed in said bar and means for holding said bolt 'in'various fixed positions along the length of said slot.

" '2. exhaust pipe and boiler tube collapser and puller, comprising a bar adaptedto be positioned in a substantially horizontal position and having an upwardly curved front end portion, and a gripper member for encircling a pipe or "tube and mounted on said curved front end porpositions along the length of said slot, and struts for reinforcing the end portion of said bar in the vicinity of said slot.

3. An exhaust pipe and boiler tube collapser and puller, comprising a bar adapted to be positioned in a substantially horizontal position and having an upwardly curved front end portion, and a gripper member for encircling a pipe or tube and mounted on said curved front end portion, and removable tip portions mounted on said bar for shortening the length of said front end portion to permit said bar to be used for removing pipes and tubes where the space about the end of said pipe or tube is limited.

4. A device of the class described, comprising a bar having an upwardly curved front end portion, a bolt extended through an elongated slot formed in said bar in the vicinity of said upwardly curved front end portion, a length of chain having one end secured to said bolt forming a flexible gripping member for encircling the end of a length of pipe or tube, and means for securing said bolt in various adjusted positions along the length of said slot.

5. A device of the class described, comprising a bar having an upwardly curved front end portion, a bolt extended through an elongated slot formed in said bar in the vicinity of said upwardly curved front end portion, a length of chain having one end secured to said bolt forming a flexible gripping member for encircling the end of a length of pipe or tube, and means for securing said bolt in various adjusted positions along the length of said slot, comprising a nut threadedly engaged upon the end of said bolt and engageable against an adjacent face of said bar, and means for preventing said bolt from slipping along the length of said slot when said nut is tightly engaged into position.

6. A device of the class described, comprising a bar having an upwardly curved front end portion, a bolt extended through an elongated slot formed in said bar in the vicinity of said upwardly curved front end portion, a length of chain having one end secured to said bolt forming a flexible gripping member for encircling the end of a length of pipe or tube, and means for securing said bolt in various adjusted positions along the length of said slot, comprising a nut threadedly engaged upon the end of said bolt and engageable against an adjacent face of said bar, and means for preventing said bolt from slipping along the length of said slot when said nut is tightly engaged into position, comprising serrations formed on the inside face of the head of said bolt and engageable with complementary serrations formed on the adjacent face of said bar on either side of said slot.

OTTO KOUBA.