US1683463A - Hoisting mechanism - Google Patents

Description

Sept. 4, 1928.

E. C. HEALY HOISTING MECHANISM Filed July 1927 2 Sheets-Sheet 1 A TTORNEYS.

Sept. 4, 1928.

E. C. HEALY HOISTING MECHANISM Filed July 1927 2 Shoots-Shoot 2 INVENTOR. (3% BY j ATTORNEYS,

Patented Sept. 4, 1928. I

UNETE? STATES PATENT ELLIS C. HEALY, OF EAST ORANGE, NEW JERSEY, ASSIfzNGR TO INTERNATIONAL PAPER COMPANY, A CORPORATION OF NEW YORK.

i HOISTING MECHANISM.

application filed July 9, 1927, Serial No. 1343.

This invention relates to hoisting mechain the specification to follow the invention nism designed for raising, lowering, and will be described in detail, and the novel transporting bodies or articles, and has reffeatures thereof will be pointed out in the erence more particularly to mechanism for appended claims. 5 lifting the large rolls of paper from paper In the accompanying drawings:

winding machines such as are usually em- Fig. 1 IS a side elevation of the improved ployed as adjnnctive to the calendar stack hoisting mechanism; of paper making machines to wind up the Fig. 2 is a top plan View of the same, calendered paper in roll form. showing a paper roll engaged by the grip 10 Such rolls are wound each on a rotary ping tongs;

shaft driven in the winding machine, and Fig. 3 is an end elevation of the same. when the roll has reached the desired size, Referring to the drawings: the shaft, carrying the roll with it, is re- The mechanism comprises as its main feamoved from the machine and deposited in a tures a longitudinally extending support- 15 convenient place, and the shaft is removed ing frame member 1, a series of gripping from the roll and returned to the winding tongs 2 depending from said frame member machine so that another roll of paper may and carrying at their lower ends longitudibe wound theteon. In some cases these rolls nally extending roll engaging members 3 are some twenty feet long and of varying adapted to engage the paper roll at on op: 20 diameter, from three to four feet more or posite sidesof the same, and a pressureless, and are consequently of great weight fluid operated cylinder and piston 5 supand difiicult to handle, and this difficulty is ported by the frame member and operathe more pronounced by reason of the fact tiveiy connected with the gripping tongs for that in many cases the paper web is slit actuating the same, the saidframe member 25 longitudinally at a number of points before being adapted to be connected with a suit.- passing onto the Winding shaft, with the able hoisting tackle 6- for raising and lowresult that the shaft will have Wound on it ering and transporting the same. a long composite roll made up of a number In the present instancethe longitudinal. of shorter rolls lying closely side by side. frame member is constructed of two chan 2:0 It has been the practice heretofore in re neled bars 1 fastened together sidehy side moving the paper rolls from the winding in spaced relations, thereby forming a uni machine, to couple lifting hooks carried by tary frame structure, to the upper side of cables to the ends of the shaft, but this pracwhich hoisting sheaves 5 swiveled to tice has been found to be objectionable in receive cables 5 of the hoisting tackle. 35 35 that with along roll, the Weight of the paper The gripping tongs 2, of which there are causes the shaft and roll to sag in the middle, six in the example of the invention illusthereby buckling and otherwise injuring the trailed, comprise each a pair of opposing paper; and when the roll is made up of a tong arms 8 pivoted between their ends as at number of smaller closely adjacent rolls as 9 in forked bracket arms 10 depending, from. 9" 0 above mentioned, such sagging'will crush the the underside of the frame bar, the said sets edges of the paper on the respective rolls, of forked arms being spaced from each other and seriously injure the same and in many along the length of the bar as beSt shown in ases render the paper unfit. for use. Figs. 1 and 2. At their upper ends the tong My invention aims to overcome these 013- arms 8 are pivoted to the outer d jections, and the invention consists of an irnspectively of toggle links 11, hose inner proved form of hoisting mechanism chanac- 3 PlY as at to a block l i, an terized by the employment of roll engaging vert'lcfil in 3P PWQ d the? devices hich will engage th roll at, opposite n s to. t recuv acks and xte p sides, thereby giving continuous support Wa y b iive n h bra et M QS 197 um w h t, th xt nt at the rolland edits-- construction being Such tha t? their P s saiseet the ease; and raise he. est s t nes eat time upper ends of the tong arms inwardly toward each other, thereby moving their lower ends outwardly away from each other and opening the tongs, and when the links are lowered, the motion of the parts being reversed, the tongs will be closed, all as will be presently more particularly described.

The lower ends of the tong arms are connected together by through bolts 15, and rollers 16 are rotatably mounted on the bolts between the respective tong arms, which rollers are adapted to engage on opposite sides of the paper roll as clearly shown in Figs. 2 and 3. The rollers thus arranged end to end, constitutes the longitudinally extending roll engaging members 3 before alluded to as being carried by the lower ends of the tong arms, and afi ord when engaged with the paper roll, a support for the same at its opposite sides extending throughout its length.

The links 14 are raised and lowered to respectively open and close the gripping tongs by means of the cylinder and piston before alluded to, the cylinder being fixedly supported in a horizontal position on the upper side of the frame member at one end of the same, and the piston rod 16 of the piston being connected with an actuating member or bar 17 extending along the upper side of the frame bar 1 and movable lon itudinally in guides 18 extending upwarcly from said frame bar, the said actuating being in the present instance formed of two rails connected fixedly together side by side with a longitudinal space between them. Bolts 19 are extended at intervals through said rails and the intervening space, which bolts are engaged loosely in the upper forked ends 20 of upper limbs 21 of elbow levers 22, which elbow levers are pivoted as at 23 on horizontal transverse axes between the channel bars 1 of the frame bar, the lower limbs 24 of said elbow levers being pivoted at their extremities to the upper ends of the vertical links 14. As a result of this form and arrangement of the parts, when the piston'is moved in one direction in the cylinder, say to the right in Fig. 1, the elbow levers will be rocked clockwise and the vertical links 14 will be raised and the tongs thereby closed; and when the piston is moved in the opposite direction, the motion of the parts being reversed, the tongs will be opened.

The cylinder is supplied with fluid under pressure from a flexible supply pipe 25 which communicates with a valve casing 26, from which valve casing a pipe 27 leads to the right-hand end of the piston, Fig. 1, and a pipe28 leads to the left-hand end of the piston, the said valve casing being provided with a two-way valve 29 adapted when turned to different positions, to admit pres sure respectively to the ends of the cylinder and open the opposite ends to exhaust. The valve has connected with it operating arms 30 from which depend chains or cords 31 to a point within convenient reach of the attendant on the floor.

In the operation of the mechanism in removing a paper roll from the winding machine, the hoisting taclde is manipulated to bring the hoisting mechanism vertically above the winding machine, and the valve controlling the admission of pressure fluid to the operating cylinder and piston is turned to a position to open the gripping tongs. The hoisting tackle is now operated to lower the mechanism until the roll engaging rolls on the lower extremities of the tongs reach a point below the center of the paper roll, whereupon the valve is operated to close the gripping tongs, in which action the longitudinal rolls on the tongs will engage with the opposite sides of the paper roll below its center as shown in Fig. 4. The shaft carrying the roll is now released from its bearing in the Winding machine, or it may have been previously released, and the hoisting tackle is operated to raise the hoisting mechanism, in which action the paper roll with the shaft therein will be lifted from the winding machine. The hoisting tackle is then operated to transport the mechanism and paper roll supported thereby to the desired position for its storage, and the mechanism is lowered so as to deposit the roll on the floor or on other appropriate support. The gripping tongs are now opened and the hoisting 'mechanism raised, and the shaft is removed from the roll and placed in the winding machine for the winding of the new roll of paper.

As hereinbefore pointed out, due to the fact that the roll of paper is in the handling 01". the same by the hoisting mechanism, engaged on its opposite sides throughout its extent by the longitudinal rolls on the gripping tongs, the paper roll will be effectually supported and sagging will be prevented. This action I deem oi advantage and importance, more particularly where long and heavy paper rolls are handled made up of aligned shorter rolls, as 4, Fig. 1, as the shorter rolls will be maintained in straight alignment, and crushing of the edges of the paper prevented.

While in the foregoing description and accompanying drawings I have set forth the invention in the particular detailed form and arrangement of parts which I prefer to adopt, it will be understood that these details may be variously changed and modified without departing from the spirit of the invention; and further it will be understood that the invention is not limited to any particular form or construction of the parts, except in so far as such limitations. are specified in the claims.

Having thus described my invention, what I claim is:

1. In a hoisting mechanism for handling paper rolls. the combination of an elongated supporting frame adapted to be raised and lowered. gripping arms depending: at inteia vals from said frame in two opposed rows and mo able to and from each other. elongated roll engaging members connected to the lower ends or" said gripping arms and extending opposite and araiheach other to engage the opposite S tlts of the roll, a pressure fluid cylinder and piston mechanism supported on sa d frame. a mem ber operativ ly eonnerted with said piston to be reciprocated thereby, and operative connections between said reeiproeating membean (h gripping arms. said connrrtiens being such that on the movement of the reciprocating member in one dirt-etion. the opposed gripping arins wi'd be moved toward each other and the elongated members 'aused to grasp the roli on opposite sidt and on the movement of the iTt'lPl'flX'ilting member in the opposite direetion. the Hongated i'nen'ibers will be moved away from each other to release the roll.

2. In a hoisting mechanism. the eoraoi nation of a supporting mechanism adapte: to be aised and lovered, pain oppose: gripping arms supported by a "ante and movable to and from each oti unable rollers carried by and extending longitudinally between said arms and constituting opposing longitudinal members adapted to engage on opposite sides of the object to be lifted, and means for moving, the arms to and from each other.

3. In a hoisting mechanism, the combination of a supporting frame adapted to be raised and lowered, pairs of opposing gripping arms supported by said frame and movable to and trnn each othar, through boits extending through said arms. rolls rotatably mounted on said bolts between the arms, and means for moving said arms to and from each other.

at. In a hoisting mechanism, the combination of a su 'iporting frame adapted to be raised and lowered, pairs of opposed gripping arms pivotally supported between their ends on said frame and adapted at their lower ends to en a 'e the bodv to be lifted. D

toggle l nks pivoted to the upper ends of said arms. a pressure lluid aetnated cylinder and piston supported by the frame. and an actuating bar operated by said cylinder the tog; A I met-hann-ni. the combination of a siKPPUEliHQ i'raine adapted to be raised and lowerrd. pars of opposed their ends on d trame and adapted at their toggle linlts pivoted to the upper ends of isten supported by the 'rame. an ac- 1 1 t a ad link: opriativriy rennet-ted with i r a id with the toggle inks.

I nation of a snppt. frame adapted to be raised and lmvei. pr i of oppo-ing gripand piston] and operatively connected with 'le iinlts.

In a holding gripnuz arms ivotally supported between iower ends to engage the body to lo lifted.

aid arm. a pressure liuid aetuated cylinder 1 lnr operated by said (-ylindt' and (3. l1 hestinenrerhanism, the eombi- PHW' arms pivotaiiv srpported bet ween their ends on the fraine and adapted at their lower e i to one; in: the body to be lified,

i toggle lin pivoted to the upper ends of said arms. vrrt .l links pivoted at thei" lower end to the toggie links, a pressure ti itl cvlinder 2 nd piston sup 'iorted by operatively connected with the bar, and elbow ievers op ratively ronneeted with saidv artnating bar and with said nlts.

T. In a ing methanism. the combinat'c-n of an elongated supporting frame, bracket e ms depending 1 intervals from *n nvoted between their ends to Hi brneli t ar 9 extending nn-mbers; carried by the lower ends ot' the tong arms and adapted to engage on opposite sides of the objert to be titted, toggle links pivoted to tin; upper ends or the t ng arnis, lint-1s pivoted to the ton ghlinks, L longitudinally extending endwise moveable actuating be supported by he f ame, elbow levers pivoted to the actuating; bar and to said links, and a powi r mechanism for mov ing the aetuating bar endwi e.

in testimony whereof, I have allixed my signature hereto.

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