US1312017A - Machine foe - Google Patents

Description

M. CAINE.

MACHINE FOR INVERTING PIPE.

APPLICATION FILED FEB-15.1919.

1 3 1 2,0 1 7 Patented Aug. 5, 1919.

2 SHEETS-SHEET I.

5114mm to;

flmlallaine 3% cr-W THE. CDLUMBIA-PLANDURAPN 60., WASHINGTON. D. c.

M. CAINE.

MACHINE FOR INVERTING PIPE. APPLICATION FILED 8.15.1919.

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ITEI) STATES PATENT OFFICE.

MACHINE ron invninrmc PIPE.

Specification of Letters Patent. Patented Aug. 5,1919.

Application filed. February 15, 191 seal No. 277,346.

T all whom it may concern .1

Be it known that I, MARsHnLL .CAINE, a citizen of the United States, residing at Barberton, in the county of Summit and State of Ohio, have invented new and useful Improvements in Machines for Inverting Pipe, of which the following is aF specifi cation. 1

This invention relates to a machine for.

inverting pipe and is moreespecially adapted for the inversion of green sewer plpe which by reason of its softness must be dried with the socket or hub end upward.

As is well known sewer pipe is. manufactured in a press with the hub or socket end downward and then must be inverted for the preliminary drying operation due to the fact that the weight of the pipe would distort the hub or socket in case the socket end was downward during the preliminary drying operation. In the manu facture of sewer pipe the socket forming" head is lowered in unison with the pipe and; then the pressure on the press is removed and the forming head lowered sufficiently to permit the placement of apallet against the lower hub or socket end of the pipeand heretofore the pipe is liftedand inverted by hand and placed in a drying room. The

trouble and expense and skilland hence the object of the present inventlon s to provide a machine by which the inversion of the pipe may be aided and assisted.

lVith the foregoing and other objects in view, the invention consists injthe novel,

construction, combination and arrangement of parts constituting the invention to. be hereinafter specifically described and illus- 1 trated in the accompanying drawings which form a part hereof wherein is shown the preferred embodiment of the invention, but i it is to be understood that chaiiges, variations and modifications can be resorted to which come within the scope hereinafter claimed. i

In the drawings in which similar referf ence numerals indicate like parts. in the different figures, i

Figure 1 is a side elevation of a machine embodying the present invention.

Fig. 2 is a view. of a portion of the mechanism on the side opposite to that shown in Fig. 1. ,w i

inversion of pipe of any size even with the use of a pallet 1s an operatlon requlrmg of the matter Fig. 3 is an end elevation looking from the left of Fig. 1. l i i Fig. 1 is a detail of the mechanism employed for rotating the device, and

Fig. 5 is a sectional view of the socket end of a sewer pipe positioned on a pallet and supportedby a portion of the mechanismshown in Fig. l. 1 l

Referring tothe drawingslin detail the device embodies two standards 1 and 2 provided at their upper ends with bearings 3 and 4. The standard 2 is provided with an ofl'set constitutinga seat 5 for a purpose to be later described. The standards 1 and 2 are mounted on a suitable foundation 6 provided with an opening 7 to permit the revolution of the mechanism to be further. described. i

Rotatably mounted in the bearings. 3 and lis a, shaft 8. 1 Mounted onthe shaft 8 are two circular disks 9 and 10 arranged in spaced relation and fixedly secured to the shaft 8 so as to revolve in unison therewith. These disks 9. andlO are connected by cross bars 11 so that the two disks move together and areheld from lateral andlongitudinal movement with respect to each other. The disks 9 and 10 may if desired be reinforced by strengthening webs 12 preferably radially arranged and formed integral with the hub of each respective disk. Mounted on the shaft 8 is a flanged brake drum 13 about a portion of which extends a brake band 14% one end of which is anchored to a pin 1 15. secured to the standard 1 and the other end extending through abracket 16 also secured to the standard 1 and having the endithereof threadedto accommodate a nut for controlling the tension of the brake band 1-1 on the brake drum 13. Disposed on the side face of the disk 10 are four pins 17, 18., 19 and 20 and similarly disposed on the opposite outer faces of the disk 9 are similarly disposed pins designated by reference numerals21, 22 and 23 these being the only pins shown in the drawing, at i I tention is directed especially to Figs. 2

and 3. The pin 21 is intransverse alinement with the pin 17, the pin 22 in axial alinement with. the pin 20 and the pin 23 in alinement with the pin 19, and there is i a pin, not shownwhich is in axial alinement with the pin 18. The pins on both of the disks are arranged in pairs the four pins on each disk are disposed so that two V by step movement consists of the following:

' ofsuch; length that when swung in one direction it will encounter one of the pins 17 to 20 inclusive and arrest revolution of the of the pins are diametrically opposite to 'iniiinison*one-quarter ofa revolution of each movement of the mechanism by which the disks are actuated. Y i

The mechanism for rotating the disks in unison one-quarter of a revolution by a step Loosely mounted on the shaft 8 is arocker M11124 the outer end ofwhich is provided with a pivot pin 25 to which is connected the head of a connecting rod 26 theupper end of'which is'pivotally connected to a pin 27:

on a crank 28 mounted on a shaft 29 supported by a bracket 30. The outer face of the crank 28 is adapted to receive a belt pulley 31 by which the crank is rotated.

"The free end of the rocker arm 24 is provided with a holding member 32 in which is pivotally mounted a catch 33 which is mounted on a pivotpin' 34 the normal tend ency of the 'latchbemg to fall by gravity to j its operative position for a purpose to be described. The length of the rocker arm 24 is such that as it oscillates it passes in close proximity to the pins 17 18, 19 and 20 and the catch 33 projecting beyond the end of the rocker arm inoperatively engages these pins when the rocker arm 24 is moved in' one direction and the catch successively en- 7 gages these pins during the upward oscillation of the arm." During the upward movement of the arm, as the catch 33'engages successively under the various pins 17 to 20 inclusive it imparts a partial rotation to the two disks and shaft 8, in other words the catch '33 rides inoperatively over the pins in its downward movement and engages under each pin successively and partially rotates the entire structure during its upward movement." 7

disks against movement at predetermined itervals when moved by means of the mechanism just described, I provide the following'; Mounted on the shelf 5 is a hinge 40 to which is pivotallyconnected an arm 41 disks. This arm is arranged to be swung into proper position to successively en'- counter" one of these pins and constitute an abutment or a positive stop against rotation ofthe disks. The movement of the arm 41 toward its operative position is induced by means of -a spring 42 anchored to a suitable member on the step 5 and limit the movement of the arm :11. A pin 43 is provided which projects outwardly from the standard 2. The oscillations of the arm 41 out of the path of movement of the various pins 17 to 20 inclusive is accon'iplishcd by the following means: Secured to the standard 2 is a bracket 14 in the outer end of which is a bearing in which is a slid-ably mounted bar 15 one end of which is pivotally connected at 16 with the arm 11 and the opposite or free end is so positioned as to lie inthe path of movement of the roclv ing arm 21 when the latter is in its lower position, that is to say that when the arm 21: is oscillated or moved to its lower position to enable the catch 33 to engage the pin 19 in Fig. v1 the arm 21 will encounter the end of the bar 45 and oscillate the arm 41 to move the free end thereof out of engagement with the pin 20 thereby releasing the locking engagement between the pin 20 and the arm 11 to permit the catch 33 to rotate the two disks in unison one-quarter of a revolution on the next upward stroke or reciprocation of the rod 26.

Secured to the inner face of the standard 1 is a bracket which supports a pivot pin 51 on which is'a catch 52 held in its operative position by means of a spring 53 so that the operative portion of the catch will lie in the path of movement ofthe pins on the disk 9 and engage them successively and constitute a lock against reverse rotation of the two disks 9 and 10.

Secured to the outer faces of both disks 9 and 10 are brackets for supporting pipe receiving cradles and as the arrangement and construction of the mechanisms on the two disks are similar it is believed that a description of the mechanism connected with the disk 10 and shown best in Fig. 1 will be suliicient forthe understanding of both. The mechanism for supporting the cradles comprises a plurality of L-shaped arms so positioned and disposed that each of the brackets are arranged to support the cradle holding mechanism of two coadjacent cradles. In Fig. 1 as shown the L-shaped In order to positively lock the combined scription of one will be sufficient for the un-- I derstanding of them all, and hence reference is directed to the brackets 60 and 61. Ex-

ets are provided on the outer face of the disk 9 and also a bar similar to the bars 64 extending between the brackets on this latter disk. Secured by any appropriate means and extending between the bars 64. is a cradle tioned on each platform 68 is a pallet pro-i vided with suitable lugs or ribs to interengage with the ribs 69 for holding the pallet in proper position. The upper conformation of the pallet 70 is such that it may be inserted in the socket: or hub end of a sewer pipe and sustain thesame during the inverting operation; The cradles 65 are arranged in pairs with the members ofthe pairs opposite to each otheror equally spaced about the disks 9 and 10 Mounted on the shaft 29 and reference directed to Fig. 3 is a crank 71 bearing a pin 72 on which is pivotally mounted a connecting rod 73. The crank 71 is adapted to ro tate in unison withthe shaft 29 and induce reciprocal motion of the connecting rod 73.

Pivotally mounted on a suitable support 7 4c is a lever 75 one end of which is pivotally connected with the connecting rod 7 3 and the opposite end 76 bifurcated and also provided with elongated slots 77. a

Mounted in suitable supports 80 and 81 is a horizontal shaft 82 arranged in axial alinement with a pipe 83 which is in its horizontal position during the inverting operation. Loosely securedon the shaft 82 is a collar 84 provided with laterally projecting nogs 85 which engage in the slots 77 of the free end of the lever 75, On one side of the collar 84 is a fixed collar 86 which holds the collar 84: from longitudinal movement. Fixedly mounted on the shaft 82 is one member 8770f a cone-shaped friction clutch the hub of which serves to constitute an abutment for the collar 84. By this arrangement when thecrank 71 is rotated the connecting rod 73 is reciprocated, the lever 7 5 oscillated and the shaft 82 shifted toward and away from thesmaller end of the sewer pipe 83 which is in its upper or horizontal position. Mounted on the inner end of the shaft 82 is a yoke 90 the separated arms of which are means of a take-up device 92.

Mounted on a suitable supportingbraoket 93 is a horizontal shaft 94 arranged at right at angles with respect to the shaft 82and bearing a driving pulley 95 which is rotated by a belt 96. vThe shaft 94 is equipped with cone-shaped friction clutch member arranged to lie in the path ofmovement of the;

member 87 when the latter is "shifted to its operative position and to thereby induce rapid rotation of the shaft 82 and the yoke 90 withits cutting wire 91. a e a a i The operation of the device is asfollows; Motionis communicatedlto the shaft 29 by means of the belt 31 running over the outer face of the crank. 28 causing a reciprocal up and down movement ofthe connecting rod 26. As the lower end of the connecting rod moves to, its lowerposition the catch 33 rides over, inoperatively, one of the pins on the disk 10 after which the catch 33 moves by gravityto its operative position. Downward movement of the connectingrod 26 of course oscillates the arm 24 which during its downward movement, engages the end 'of the bar at and shifts the latter to the left in arm 41 into operative position to engage the next succeeding pin on the disk 10 to operate as a temporary positive stop or abutment against further movement of the two disks. In view of the fact that the sewer pipe to be inverted by this device is heavy there is always a liability of thedisks overrunning or revolving farther than is desired and consequently the; brake mechanism shown bestin Fig. 2is employed whichcomprises a partial band brake Hand in order to effect a positive lock against reverse rotation the catch 52 is employed so that the mechanism to revolve the device by a step by step novementwhich is preferably onequarter of; a revolution is provided for. In

practiceione operator inserts a pallet undercrank 71 revolves it oscillates the lever 75 a 1 causing ahorizontal movement of the shaft 82 toward and away from the pipe 83 and WllQllllhB wireapproaches its operative position the cone pulley 87 engages the cone pulley 97 and rapid rotation of the shaft 82,

yoke i90,and wire 91 takes place which effectually trims the open or .unsocketed end of theqsewer pipej. Before further move- This trimming operation is performed by means of the wire 91. As the i ment of the disks takes place the trimming wire 91 is withdrawn by-the same mechanism which'brought it into operative position allowing the pipe 81 to be moved to the left in Fig; 1 where it is received on a suitable platform by an attendant thereby accomplishing the inverting and trimming operation without any danger of injury to the green pipe and at the same time the trimming operation is secured and accomplished during the interval while the pipe 83 is in its horizontalposition.

I claim- 1. A device of the class described embodying a frame revoluble in a vertical plane, cradles for holding pipe mounted on said frame" and disposed near the peripheral p0rtion thereof, said cradles arranged to hold said pipe during the orbital movement of said pipe about the axis of revolution of said frame during the inverting operation, automatic means operable only to revolve said frame intermittently a fractional portion of a revolution at a time, and means to operate said frame revolving means.

2. A device of the class described embodyinga frame revoluble in a vertical plane, cradles for holding pipe mounted on "said frame and disposed near the peripheral portion thereof, said cradles arranged to hold saidpipe during the orbital movement of said pipe about the axis of revolution of said frame during the inverting operation, automatic means includin a rocker arm operable only to revolve said frame a fraction of a revolution by a step by step movement, and means including a crank and connecting rod to operate said rocker arm.

3. A device of'the class described embodying a frame revoluble in a vertical plane, cradles for holding pipe mounted on said frame and disposed near'the peripheral portion thereof, said cradles arranged to hold said pipe during the orbital movement of said pipe about the axis of revolution of i said frame during the inverting operation and means to revolve said frame a fraction "ofa revolution bya step by step movement,

a trimming device adapted to trim the unframe and disposed near the peripheral portion thereof, said cradles arranged to hold said pipe during the orbital movement of of said pipe about'the axis of revolution of said frame during the inverting operation and means to revolve said frame a fraction of a'revolution by a step by step movement, a rotatable trimming device adapted to trim the unsocketed end of each pipe while in the horizontal position.

' *5. A device of the class described embodying a frame revoluble in a vertical plane, cradles for holding-pipe mounted on said frame and disposed near the peripheral portion thereof, said cradles arranged to hold said pipe during the orbital movement of said pipe about the axis of revolution of said frame during the inverting operation, means to revolve said frame a fraction of a revolution by a step by step movement, a rotatable trimming device arranged to reciprocate tangentially with respect to the axis of movement of said pipes and arranged to engage and trim the unsocketed end of each pipe while in a horizontal position.

6. A device of the class described embodying a frame revoluble in a vertical plane, cradles for holding pipe mounted on said frame and disposed near the peripheral portion thereof, said cradles arranged to hold saidpipe during the orbital movement of said pipe about'the axis of revolution of said frame during the inverting operation, means to revolve said frame a fraction of a revolution by a step by step movement, a trimming device arranged to reciprocate tangentially with respect to the axis of movement of said pipes and arranged to engage and trim the, unsocketed end of each pipe while in a horizontal position and means to reciprocate said trimming device toward and away from said pipe. I

7. A device of the class described embodying a frame revoluble in a vertical plane, cradles for holding pipe mounted on said frame and disposed near the peripheral portion thereof, said cradles arranged to hold said pipe during the orbital movement of said pipe about the axis of revolution of said frame during the inverting operation, means to revolve said frame a fraction of a revolution by a step by step movement, a rotatable trimming device arranged to reciprocate tangentially with respect to the axis of movement of said pipes and arranged to engage and trim the unsocketed end of each pipe while in a horizontal position, means to rotate said trimming device, and means to shift said trimming device toward and away from the pipe while in its horizontal position.

8. A device of the class described embodying aframe revoluble in a vertical plane, cradles for holding pipe mounted on said frameand disposed near the peripheral portion thereof, said cradles arranged to hold saidpipe during the orbital movement of said pipe about the axis of revolution of said frame during the inverting operation, means to revolve said frame a fraction of a revolution by a step by step movement, a rotatable trimming device arranged to reciprocate tangentially with respect to the axis of movement of said pipes and arranged to engage and trim the unsocketed end of each pipe while in a horizontal position, means to shift said trimmer into engagement with a pipe while in its horizontal position, means to rotate said trimmer while in engagement with said pipe, said means being inoperative when said trimmer is shifted out of engagement with said pipe.

9. A device of the class described embodying a frame revoluble in a vertical plane,

cradles for holding pipe mounted on said frame and disposed near the peripheral portion thereof, said cradles arranged to hold said pipe during the orbital movement of said pipe aboutthe axis of revolution of said frame during the inverting operation, automatic means operable only to revolve said frame intermittently a fractional portion of a revolution at a time, means to operate said frame revolving means, and means to lock said frame against unintentional rotary movement, said means being arranged to aution of a revolution at a time, means to opcrate said frame revolving means, and means to lock said frame against unintentional re verse rotation, said means being arranged to automatically operate synchronously with the termination of the intermittent movement of the frame.

11. A device of the class described embodying a frame revoluble in a vertical plane, cradles for holding pipe mounted on said frame and disposed near the peripheral portion thereof, said cradles arranged to hold said pipe during the orbital movement of said pipe about the axis of revolution of said frame during the inverting operation, automatic means operable only to revolve said frame intermittently a fractional portion of a revolution at a time, means to opcrate said frame revolving means, locking mechanismarranged to arrest the revolution of said frame automatically at predetermined intervals and to prevent forward rotation of said frame, and locking mechanism engaging said frame to prevent reverse rotation thereof and arranged to engage said frame at each termination of movement thereof and to synchronize with the frame revolving means.

In testimony whereof I have hereunto set in hand.

y MARSHALL CAINE.

topics of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, D. 0. I

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