US1639856A - Turning device - Google Patents

Description

Aug. 23, c. s- NELSON TURNING DEVICE s Sheet 1 Filed Sept. 14. 1926 nom 7 ,Aug- 3' c. s. NELSON TURNING DEVICE Filed.Sept .14. 1926 3 Sheets-Sheet 2 enter.

' Aug. 23, 1927.

C. S. NELSON 'TURNING DEVICE v Filed Sept 14. 1926 3 Sheets-Sheet 5 9 [QC n1 0! Char/ea 3. Nelson 7 chine the pole is turned Patented Au 23, 1927.

UNITED STATES 1,639,856 PATENT OFFICE.

CHARLES S. NELSON, OF SANDPOINT, IDAHO, ASSIGNOTR TO MALVEBN I1. BRUCE,

-01 SAN DPOINT, IDAHO.

TURNING DEVICE.

Application filed September 14, 1926. Serial No. 135,328.

My present invention relates to an improved pole turning machine which while adapted for use 111 various ways and for different purposes is especially designed for i the puncturing machine preparatory to treatment of the punctured pole by a liquid wood preservative. Preferably the base or butt end of the pole is thustreated with the wood preservative and therefore the pole is supported in the machine and'turned on its longitudinal axis to successively present different areas of its surface for action of the puncturing machine. The pole is retained in stationary position during the operation of the puncturing machine, and after each operation of the puncturing maby the mechanism of my invention.

As is well known, to insure uniformity in piling and to fashion a compact pile on a railroad car, the customary practice observed is to load the poles on the car or truck with the larger or buttends of the poles at alternate ends of the car. To meet this condition my invention contemplates the use of spaced, duplex turning devices for the pole adapted for selective use on the butt ends of the poles, and under manual control.

The poles are conveyed by suitable means, as a. roller conveyer, to the turning machine, either their butt ends forward, and may be fed longitudinally to and through either end of the machine,- bed. p

In carrying out my invention'I utilize opposed pairs of endless chains having resilient supports, with their workingfiights disposed at opposite sides of'the pole and traveling in opposite directions for fric-v tionalengagement with the surfaceof the pole to turn it in a clockwise direction .on its longitudinal axis, and the invention consists in certain novel combinations and arrangements of parts for this purpose as will hereinafter be more fully pointed out and claimed, l

In the accompanying drawings I have ilvlustrated one complete example of the physical embodiment of my invention wherein the parts are combined and arranged acends or their smaller cording to the best mode, I have thus far devised for the practical application of the principles of my invention.

Figure 1 is a view in side elevation show! ing a portion of a pole in the turning machine with the spaced, duplex turning devices, and also indicating the general arrangement of the pole puncturing or perforating wheel and its operation on the pole Figure 2 is an enlarged detail sectional 85 view of the ratchet mechanism forimparting the intermittent movement to the turning chains, through the operating shaft.

Figure 3 is an end view of the machine as seen from the right in Figure 1, the chains being'shown by full lines in inoperative position and by dotted lines in operative position. I

Figure at is a perspective view of one of the endless chains and its pivoted, laterally swinging, and resiliently retained frame.

In order that the general arrangement and relation of parts may readily be understood I have illustrated a portion of a pole as P, supported on its bed consisting of comple' mentary pairs of conical or, tapered rollers 1 and 2 on the'shafts 3 which are'suitably spaced and journaled transversely of the main frame l. These supporting rolls are operated by a longitudinally extending drive chain 5 in connection with sprockets 6 on the roller shafts, and the drive chain is used to convey the pole to the bed from either the right end or the left end of the machine in Figure 1. M The stationary pole is supported in its bed for operation of a puncturing machine that includes a rotary perforating or puncturing wheel 7 supported above the pole by its frame 8 and designed to travel or recip- 9 rocate longitudinally of the pole and puncture its surface, After, each operating stroke of the wheel the'pole is turned on its axis to present an imperforate orunp'unctured area in position for operation of the puncturing wheel. j

The duplex turning mechanism is indicated as a whole by the numerals 9 and 9 and 10, 10 in Figure 1, the former mechanism being used when the butt end of the 105 of complementary of each pair being arranged at opposite sides of the pole and adapted to turn the pole;by frictionally engaging its opposite. sides with such force as to partially rotate it on its longitudinal axis.

The turning devices are of complementary construction and each device or member of a pair comprises an endless chain 11' (Figure l) having friction lugs 12 carried by its links. In Figure 3 and in Figure 4 the working flight of the device 9 moves downwardly and the working flight of the chain'of the device 9 moves upwardly at the opposite side of the pole. The friction lugs on the working flights of the chains thus engage the opposite sides of the-pole and turn it on its axis.

Eachchain is provided with a drive sprocket 13 on the chain or turning shaft let, and an idle sprocket 15 on its shaft 16 car ried by a chain-frame that comprises a pair angular arms 17 and-i7 pivoted at their lower ends 18 on the turning shaft 14. connected together as by pins 19 and 19' and are adapted to swing outwardly from the pole to inoperative position, as shown in full lines, to permit placing of the pole in position for puncturing, and for permitting withdrawal of the pole after puncturing. The two opposed members as 9 and 9 are drawn inwardly or swung inwardly on their pivots toward the pole. as seen by dot- -ted=lines m r ghts, to ope a tiveposit-ion.

When in operative position the frames are resiliently held or retained to compensate for a knot or other irregularity on the exterior surface of the pole, and as a chain encounters such an irregularity its frame is permitted to swing as required, from the pole, but yet retain its frictional relation thereto.

For this purpose the turning devices are equipped with a pair of springs 20 and 21 anchored to the pins 19' of the chain frames, and cables 22 and 2-3 are connected to the respective springs, and pass around drums 24: and 25, the former for the devices 9, 9 and the latter for the devices 10, 10 as shown in Figure l where the drums are carried by the drum shaft 26 journaled insuitable bearings from the top of the main frame above the pole. I

The turning devices are thus drawn to operative position by action of the drum shaft, drums and cables described, andwhen these cables are released, the turning devices are automatically swung outwardly from the pole to inoperative position.

For swinging the turning devices outwardly a drum 2'? (Figure 1) is provided on the drum shaft 26 and the cable 28 is wound thereon as the turning devices are swung inwardly to the pole. This cable extends up wardly and over a pair of guide pulleys 29 These two arms are rigidly 36 and control lever36 pivoted on the frame of the machine, and adapted to be, adjusted inconneetion with a rack-frame 37.

A pair of clutches 88-and for selective useincontrolling a selected one of the duplex turning devices, is provided on. the drum shaft, and the frame 40 may be manipulated to operate one clutch and at the same time disconnect theother clutch.

"'Ti'i lfli'lttill' shaft 14 ezttendsalong tl gitudinal center of the main frame below the pole and is journaled inSuitablefibear-i ings as ll. At one end, of; the machine: a worm transmission device 42 including the transversely disposed worm shaft 13 is connected with the chain shaft, and a gear couple 44 from the gear shaft 45 is driven through the bevel gear couple 46 from a ratchet shaft 47 journaled in bearings 48 and extending parallel with the chain shaft.

-e len- The ratchet shaftis intermittently turned F igure 2 comprising av series of spring pressed pawls 49 carried by the notched ratchet head 50 that is keyed to theratchet shaft. A ratchet disk or cup 51 is loosely carried on the ratchet shaft for co-action with the pawls and this disk is provided with a rigid, slotted lever arm 52 projecting laterally therefrom. A link-motion .53 is connected to the lever armband anextension slide rod 54 is pivoted to the link-motionas best seen in Figures 1 and 8. The slide rod '54, which is supported to reciprocate vertically, is actuated through the'connecting rod 55 that extends upwardly to the eccentric disk '56 on theeccentric shaft 57 journaled transversely of the machine at, the. top of the main frame. By means of a gear couple 58 the eccentric shaft is connectedwith a suitable motor as 59 which, is controlledv in usual manner.

=In-Figure 1 it will be apparent that, the control devices for clutches, brakes, and operating mechanisms are compactly arranged for manipulation by the operator, who

stands at. the. side of the machine in posit1on for controlling the turning machlne. as the puncturing machine rides by means of its rollers 60 on the tracks or track rails ,61

. extending longitudinally of the machine and supported .on top of the main frame above the pole. After the pole is placed upon its "by means of a'ratchet mechanism shownjin lOO ill)

bed, including the spaced pairs of tapered rollers 1 and 2, its top portion is punctured by means of the reciprocating puncturing machine. After each working stroke of the puncturing machine the ratchet mechanism is actuated to transmit power to the turning chains, which are of course first moved to operative position, and the moving chains give a partial turn to the pole. After a partial turn, the turning devices are released and their weights return to inoperative position, or the turning devices may be maintained in operative position ready for use, until the punctured pole is ready to be withdrawn from the machine and another pole substituted therefor.

Having thus fully described my invention what I claim as new and desire to secure by Letters Patent is 1. The combination with a pole-supporting bed, of a pair of pivoted frames arranged on oposite sides of the bed and adapted to swing toward and from a vertical plane in which the axis of a pole lies, oppositely moving endless chains in said frames adapted to frictionally engage the surface of the pole,

means for swinging said frames to operative position, and means for swinging said frames to inoperative position.

2. The combination with a pole supporting-bed of a chain shaft and operating means therefor, a pair of frames pivoted on said shaft at opposite sides of the bed and adapted to swing toward and from a vertical plane in which the axis of a pole lies, oppositely moving endless chains in said frames adapted to frictionally engage a pole in the bed, and driving connections from said shaft to said chains.

3. The combination with a pole-supporting bed of a chain-shaft and operating means therefor, a pair of frames pivoted on said shaft at opposite sides of the bed and adapted to swing toward and from a vertical plane in which the axis of a pole lies,

endless chains supported in said frames and means for operating said chains from the shaft, and resilient means for supporting the upper free ends of said chain-frames.

4c- The combination with a chain shaft, of a pair of laterally disposed frames pivoted on the shaft at opposite sides of the shaft and adapted to swing toward and away from a vertical plane in which the axis of the shaft lies and endless chains in said frames, means on the shaft for driving the chains, and resilient means for sup porting the free ends of said frames.

5. The combination with a chain operating shaft, of a pair of oppositely and laterally disposed frames pivoted thereon and adapted to swing toward and away from a vertical plane in which the axis of the chain operating shaft lies, endless friction devices supported in said frames and operative connections therefor on the shaft, means for swinging the frames to opera tive position and resilient means for supporting the frames in operative position.

6. The combination with a chain operating shaft, of a pair of oppositely and laterally disposed frames pivoted thereon and adapted to swing toward and away from a vertical plane in which the axis of the shaft lies, endless friction devices supported in the frames and operating means therefor actuated from the shaft, means for swinging the frames to operative position, and a counterweight mechanism for co-action with the frames as they swing to inoperative position.

7 The combination with a chain operating shaft, of a pair of oppositely and laterally disposed frames pivotedthereon and adapted to swing toward and away from a vertical plane in which the axis of the shaft lies, endless chains moving in opposite directions, sprockets for said chains on said shaft and in said frames, means for swinging the frames to operative position, and gravity actuated means for permitting the frames to fall away to inoperative position.

8. The combination with a chain shaft of a frame pivoted thereon and adapted to swing toward and away from a vertical plane in which the axis of the shaft lies and a sprocket in the frame, a sprocket on the shaft and a friction chain supported on said sprockets, a cable having a resilient connec tion to the free end of the frame, and means for winding and unwinding the cable.

' 9. In a pole turning machine the combination with a chain shaft of spaced, duplex pole-turning devices supported on the shaft at opposite sides thereof and actuated thereby to swing toward and away from avertical plane in which the axis of the shaft lies, and selected means for controlling said duplex pole-turning devices.

10. In a pole turning machine the combination with a chain shaft, of spaced duplex, pole-turning devices supported on opposite sides of the shaft and actuated thereby to swing toward and away from a vertical plane in which the axis of the shaft lies, a clutch shaft and a pair of clutches thereon for selective use with said duplex devices, a drum on the clutch shaft, and flexible connections between said drum and turning devices for swinging a selected device to operative position.

In testimony whereof I aflix my signature.

CHARLES S. NELSON.

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