US1162871A

US1162871A - Beading implement.

Info

Publication number: US1162871A
Application number: US1845315A
Authority: US
Inventors: George E Morris
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-04-01
Filing date: 1915-04-01
Publication date: 1915-12-07
Anticipated expiration: 1932-12-07

Description

G. E. MORRIS.

BEADING IMPLEMENT.

APPLICATION HLED APR.1.1915.

Patented Dec. 7, 1915.

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G. E. MORRIS.

BEADING IMPLEMENT.

APPLICATION mu) APR. l. 1915.

Patented Dec. 7, 1915.

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GEORGE E. MORRIS, 0F MINNEAPOLIS, MINNESOTA.

READING IMPLEMENT.

Application filed April 1, 1915.

To all whom it may concern:

Be it known that 1, Gnonen E. MORRIS, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Beading Implements; and 1 do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to tube or line expanding and heading tools and is in the nature of an improvement on my beading implement disclosed and broadly claimed in my U. S. Letters Patent, 886,394, issued May 5th, 1908.

To the above end, the invention consists of the novel devices and combination of devices hereinafter described and defined in the claims.

In the accompanying drawings, which illustrate the invention, like characters indicate like parts th roughout the several views.

Referring to the drawings Figure 1 is a side elevation of the improved expanding and beading implement, some parts being indicated in different positions, by means of broken lines, and applied in working position to a boiler, shown in section, some parts being broken away; Fig. 2 is a plan View of the improved expanding and beading implement, some parts being broken away and some of the exposed parts being shown in section; Fig. 3 is a view principally in section taken on the line X X of Fig. 2; Fig. 1 is a view partly in side elevation and partly in transverse section taken on the line X X of Fig. 2; Fig. 5 is a transverse section taken on the line'X X of Fig. 2; and Fig. 6 is a detail view with some parts sectioned on the line X X of Fig. 2.

The numeral 1 indicates a rectangular base plate provided with a longitudinally extended slot 2 having outwardly diverging side walls. A pair of arch bars 3 is integrally formed with the base plate 1, at its longitudinal edges, and extends parallel to the slot 2. Also integrally formed with the arch bars 3 is a supporting bracket 4, having a bearing sleeve 5 spaced above the base plate 1 and axially alined with the longitudinal center of the slot 2.

The base plate 1 is supported by a twopart holding member 6, passed through the Specification of Letters Patent.

' lock the same for common rotation.

Patented Dec. *7, 1915.

Serial No. 18,453.

slot 2, and having a flanged head 7 which slidably rests on the upper face of said base plate. Diametrically opposite channels 8 are formed in the holding member 6, just under the head 7 and in which channels the base plate 1 is slidably mounted for the purpose of setting the said holding member at different distances from the sleeve 5. Vertically disposed through the holding memher 6, is a taper bolt 9 having on its upper end a nut 10. By adjusting this nut 10, the taper bolt 9 may be moved longitudinally for expanding or contracting the holding member in the well known manner. As shown, the holding member 6 is inserted into one of the tubes or flues X, is frictionally clamped therein by the taper bolt 9, and supports the base plate 1 parallel to the plate or sheet Y, to which the lines are to be attached.

Rotatively mounted in the sleeve 5 is a tool holding head 11, having a reduced upper end on which is removably mounted an actuating ratchet 12 having an odd number of teeth, the purpose of which will presently appear. Screws 13 detachably hold the ratchet wheel 12 against removal from the head 11, and cooperating flattened surfaces 141- on said ratchet and head, inter- The head 11 is held against axial movement in the sleeve 5, but with freedom for rotary movement, by the ratchet 12 and the flange 15 integrally formed with the head 11.

A reciprocating rectangular tool 16 is mounted in a slot 17, formed in one side of the head 11, which has a rear inclined guide wall 18. Extending from the front face of the tool 16 is a hooked beading lug 19 and from this beading lug 19 to the lower end of the tool there is formed a curved expanding face 20. The upper end or head 21 of the tool 16 projects above the head 11, and a pin 22, passed transversely therethrough, limits the downward movement of the tool 16 in the slot 17. A coiled spring 23, mounted in a recess 24, formed in the guide wall 18, is compressed between the bottom of said recess and the rear face of the tool 16, below the beading lug 19, and tends to yieldingly press the tool 16 outward. A stud 25, on the rear face of the tool 16, projects into the coiled spring 23 and holds the same in position.

An impact against the tool 16 forces the V "the curved expanding face 20 of the tool into contact with the internal face of the tube, thereby forcing or expanding the tube onto the plate Y.

The'tool 16 is -operated by a trip-hammer 26, having a rearwardly and downwardly curved handle 27 terminating at its free end in a hub 28. This hub 28 is inserted between the arch bars 3 and is journaled on a bearing bolt 29, mounted in said arch bars. The trip-hammer 26 is operated by a propelling or hammer spring 30 bent upon itself to afford a pair of spring arms 31, and themselves bent to afi'ord a pair of spring coils 32, which encircles the hub 28. The intermediate portion of the spring 30 embraces the handle 27, just forward of its hub 28, and tends to throw the hammer 26 onto the head 21 of the tool 16. The free ends of the spring arms 31 are bent to form hooks 33, which loosely supportfan equalizing bar 34, intermediately pivoted to an anchor bolt 35. This anchor bolt 35 is passed through an aperture in a transverse bar 36 integrally formed with the arch bars 3, and is held therein by a nut 37. Obviously, by adjusting this nut 37, the operative length of the bolt 35 may be varied, at will, for adjusting the tension of the propelling spring 30, and, hence, the force of the impact against the tool 16. The equalizer bar 34 affords a base of reaction for the arms of the propelling spring 30, and it alsoadjusts the strains on said spring so that the pull on the arms 31 is equally divided.

A star shaped cam wheel 38 is provided for retracting the hammer 26 against the tension of its propelling spring 30 and then releasing the same. This cam wheel 38 is mounted between the arch bars 3 and is journaled on a bearing bolt 39, anchored in said bars. The cam wheel 38 is formed of a multiplicity of circumferentially spaced cam surfaces 40, connected bv abrupt surfaces 41. In the retracting of the hammer 26, the cam surfaces40 engage a roller equipped cam extension 42 on the hammer handle 27. As the roller equipped cam extension 42 passes out of engagement with one of the cam surfaces 40, the hammer 26 is released and delivers ablow onto the tool 16 under the action of the propelling spring 30.

A step-by-step rotary movement is imparted to the cam wheel 38 by a hand lever 43 and a pair of reversely acting

driving pawls

44 and 45. The lever 43 extends between the arch bars 3 and is pivotally, se-

cured thereto by a bolt 46. The lower or short end of the lever 43 is bifurcated and the

pawls

44 and 45 are pivotally secured between the prongs thereof by a bolt 47 for movements toward and from each other. On the outer face of the cam wheel 38 is secured a plurality of circumferentiallv spaced headed studs 48, with which the

pawls

44 and 45 engage to impart the step-by-step movement to the cam wheel 38. The pawl 44 is provided with a concave shoulder 49 for engagement with one of the studs 48 under a pushing strain, and the pawl 45 is provided with a hook 50 for engagement with a diametrically opposite stud 48 under a pulling strain. The first half of movement of the cam 38, requiredfor moving the hammer 26 into a retracted position, is imparted by the pawl 44, and the last half of said movement is imparted by the pawl 45. A projecting finger 51 on the pawl 44 engages the successive studs 48 and keeps said pawl properly positioned with respect. thereto. The extreme outer end of the pawl 45 is provided with a cam surface 52, successively engages the studs 48 and cams the hook 50 past the same. The

pawls

44 and 45 are yieldingly drawn toward each other by a coiled spring 53.

Simultaneously with the step-by-step movement imparted by the cam wheel 38, there is imparted to the head 11 a like movement by means of the driving pawl 54. This driving pawl 54 is pivotally mounted between the prongs of the bifurcated end of the lever 43 for action on the ratchet l2. coiled spring 55 yieldingly holds the pawl 54 in engagement with the teeth of the ratchet l2, and a keeper lug 56 holds said pawl in flat sliding engagement with the bracket 4. The ratchet 12, as previously stated, is provided with an odd number of teeth and the pawl 54 is arranged to engage every second tooth of said ratchet, so as to impart a step-bystep movement to the ratchet, and hence, the tool 16. By this arrangement, the blows delivered by the tool 16, during the heading and expanding process of the tube, are staggered so as to give uniform work.

The diameter of the head 11 is made to snugly fit within a new tube. hen the implement is used for work on old tubes, which have previously been expanded, one or more thin cylindrical bushings 57 may be detachably secured to the head 11 by a screw 58, as best shown in Fig. 3. These bushings 57 will increase the diameter of the head 11, so as to snugly fit within the tube, which is essential for good work.

What I claim is 1. A beading implement comprising the combination of a base, a head, means for rotatively supporting the head on the base, a tool carried by the head, automatic means for imparting a step-by-step rotary move ment to the head and for staggering the steps of each succeeding rotation of the head with respect to the steps of the previous rotation thereof, and means for delivering an impact against the tool.

2. A beading implement comprising the combination of a base, a head, means for r0- tatively supporting the head on the base, a tool carried by the head, means for imparting a step-by-step rotary movement to the head, including a ratchet Wheel having an odd number of teeth and a pawl arranged for action on every other tooth of the ratchet Wheel, and means for delivering an impact against the tool.

3. A beading implement comprising the combination of a base, a rotatable head car ried by the base, means for rotating the head, a tool carried by the head, a hammer arranged to deliver an impact against the tool, a propelling spring operative on the hammer, and means for retracting the hammer and tripping the same into action.

4:. A beading implement comprising the combination of a base, a rotatable head carried by the base, means for rotating the head, a tool carried by the head, a hammer arranged to deliver an impact against thetool, a propelling spring operative on the hammer, means for varying the tension of the propelling spring, and means for retracting the hammer and tripping the same into action.

5. A beading implement comprising the combination of a base, a rotatable head carried by the base, means for rotating the head, a tool carried by the head, a hammer arranged to deliver an impact against the tool, a propelling spring operative on the hammer and having a pair of arms, a pivot ally anchored equalizer affording a base of reaction for the arms of the propelling spring, and means for retracting the hammer and tripping the same into action.

6. A beading implement comprising the combination of a base, a rotatable head carried by the base, means for rotating the head, a tool carried by the head, a hammer arranged to deliver an impact against the tool, a propelling spring operative on the hammer and having a pair of arms, a pivotally anchored equalizer afiiording a base of reaction for the arms of the propelling spring, means for adjusting the equalizer to vary the tension of the propelling spring, and means for retracting the hammer and tripping the same into action.

7. A beading implement comprising the combination of a base, a rotatable head carried by the base, means for rotating the head, a tool carried by the head, a hammer arranged to deliver an impact against the tool, a propelling spring operative on the hammer, a cam Wheel having circumferentially spaced cams for retracting the hammer and tripping the same into action, and means for rotating the cam Wheel.

8. A beading implement comprising the combination of a base, a rotatable head carried by the base, means for rotating the head, a tool carried by the head, a hammer arranged to deliver an impact against the tool, a propelling spring operative on the hammer, a star Wheel cam for retracting the hammer and tripping the same into action, and means for rotating the cam Wheel.

9. A beading implement comprising the combination of a base, a rotatable head carried by the base, means for rotating the head, a tool carried by the head, a hammer arranged to deliver an impact against the tool, a propelling spring operative on the hammer, a star Wheel cam for retracting the hammer and tripping the same into action, and means for intermittently operating the star Wheel cam.

10. A beading implement comprising the combination of a base, a rotatable head carried by the base, means for rotating the head, a tool carried by the head, a hammer arranged to deliver an impact against the tool, a propelling spring operative on the hammer, a star Wheel cam for retracting the hammer and tripping the same into action, a lever, and a pair of reversely acting driving pawls carried by the lever and operative on the star Wheel cam.

11. A beading implement comprising the combination of a base, a rotatable head carried by the base, means for rotating the head, a tool carried by the head, a hammer arranged to deliver an impact against the tool, a propelling spring operative on the hammer, a star Wheel cam for retracting the hammer and tripping the same into action, having a plurality of circumferentially spaced driving lugs, a lever, and a pair of reversely acting driving paivls carried by the lever and operative on the driving lugs of the star Wheel cam.

12. A beading implement comprising the combination of a base, a rotatable head carried by the base, means for rotating the head, a tool carried by the head, a hammer arranged to deliver an impact against the tool, a propelling spring operative on the hammer, a star Wheel cam for retracting the hammer and tripping the same into action, having a purality of circumferentially spaced driving lugs, a lever, a pair of reversely acting driving paWls carried by the lever and operative on the driving lugs of the star Wheel cam, and a spring for yieldingly holding the driving paivls in engagement With the driving lugs.

13. A beading implement comprising the combination of a base, a rotatable head carried by the base, a tool carried by the head, a hammer arranged to deliver an impact against the tool, a propelling spring operative on the hammer, means for retracting the hammer and tripping the same into action, and means actuated by the hammer actuating means for rotating the head.

14:. A beading implement comprising the combination of a base, a rotatable head carried by the base, a tool carried by the head, a hammer arranged to deliver an impact against the tool, a propelling spring operative on the hammer, means for retracting the hammer and tripping the same into action, and means actuated by the hammer actuating means for impartlng a step-bystep movement to the head.

15. A beading implement comprising the combination of a base, a rotatable head carried .by the base, a tool carried by the head, a hammer arranged to deliver an impact against the tool, a propelling spring operative on the hammer, a cam for retracting the hammer and tripping the same into action, a lever, and connections from the lever to the head and cam for rotating each thereof.

16. A beading implement comprising the combination of a base, a rotatable head carried by the base, a tool carried by the head, a hammer arranged to deliver an impact against the tool, a propelling spring operative on the hammer, a cam for retracting the hammer and tripping the same into action, a lever, and connections from the lever to the head and cam for imparting step-bystep movements to each thereof.

17. A beading implement comprising the combination of a base, a rotatable head carried by the base, a tool carried by the head, a hammer arranged to deliver an impact against the tool, a propelling spring operative on the hammer, a cam for retracting the hammer and tripping the same into action, a lever, a pair of reverselv acting pawls carried by the lever for imparting a stepby-step movement to the cam, and a pawl carried by the lever for imparting a stepby-step movement to the head.

In testimony whereof I aliix my signature in presence of two witnesses.

GEORGE E. MORRIS.

Witnesses:

PEARL LUEHRS, HARRY D. KILGORE.

Copies of this patent may be obtained for five cents 'each, by addressing the Commissioner of Patents, Washington, D. C.