US845884A - Traveling carrier. - Google Patents

Description

No. 845,884. PATENTED MAR. 5, 1907.

D. M. MOTHERWBLL.

TRAVE'LING CARRIER. APPLIoATIoN FILED APB.23,1906.

6 SHEETS-SHEET l.

PATBNTED MAR. 5, 1907.

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PATENTED MAR. 5, 1-967.

180,845,884. PATRNTRD MAR. 5, 1807.

' D. M. MO'TRRRWRLL. TRAVRLING CARRIER.

APPLICATION FILED m8281906.

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PATENTED MAR. 5, 1907.

D'. M. MOTHBRWBLL.

TRAVELING CARRIER. APPLIoATIoN FILED APR.23,1906.

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rinrr s'rnrns DAVID M. MOTHERWELL, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE WHIT- MAN 8c BARNES MANUFACTURING CO.,

TION OF OHIO.

OF AKRON, OHIO, A CORPORA- Specification of Letters Patent.

Application liled April 23, 1906. Serial .Nor 313,248.

Patented Marc-I1 5` 1O7.A

To .f2/,ZZ- iti/tom t muy concern:

Be it known ,that I, DAVID M. MOTHER- wnnL, a citizen oi the United States, residing at Chicago, in the county or Cook and State of Illinois, have invented certain new and usei'ul Improvements in Traveling Carriers, of

' which the rollowing isa specification,rererence being had therein to the accompanying drawings.

My invention relates to traveling carriers which operate to raise a load vertically, convey it horizontally supported trom an overhead way, and release it at a desired point.

The object or the invention is to provide' a carrier which may be locked on the overhead stop while the load is secured in a sling or` other convenient attaching device, hoisted, tripped atany desired elevation in such a manner that the snspendingrope grasped with a force approximately equal to the entire weight or the load, and, thus suspended,

. conveyed to the unloading-point, where the sling or'attaching device vvis operated to rer lease the load, the carrier being then sw iveled about and drawn back to the loading-point onto the stop which operates the tripping mechanism and unfastens .the suspendingrope and sling, permitting them to be low. ered1 in proper position ror taking on a new loa The invention provides means by which the load is 'released with its length at right .angles to the path of travel thereof, thereby saving labor in pitching or shifting the loads alter releaseV and it also provides a trip-lever which may be set up o n the track at any point and which is controlled'by a guide-rope independently oi'the carrier.

My invention also provides means for, holding the car firmly in the stop, and it contemplates a compact, safe, durable, and economical construction of the parts.

In general my device comprises, in connection with an overhead track, a stop and carriage, a lower swivel-frame, and an inner tripping-frame carrying the pulleysv uponwhich the sling or other attaching device is secured.

In the accompanying drawings, wherein like letters and numbers refer to similar parts throughout the several figures, I have shown a device embodying my invention.

Figure 1 is a side elevation of the hay-can, rier suspended upon a section of track. Fig.

oi Big. 5, the same being shown as detached orindependent of the traveling portion ofv the car. Fig. 5 lis a transverse sectional view of the car, takenon line 5 of Fig. 1. Fig. 6` is a sectional end view on line 6 of Fig.. 3.

In ,the drawings, A indicates the'main truck or carriage, B the outer swivelaine, and C the inner trippingdrame, which turns with the swivel-frame B, but drops and rises within it as the tripping dev ice and lockingdog are operated. As a matter of conven` ience inconstruction I prefer to make the carriage A and frames B and C in halves or sections.- A comprises the sections A A2,- bolted together at the points 7 7. .This can iiage is provided with the truck-trames 8, to the upper corners of which are secured in the usual manner trucks or wheels 9, adapted to run on flanges 1@ of overhead track 11 and support the carrier.` The carriage A bears on its lower extremity the two halves of the circular swivel-collar 12, in which reversible gripping-frame B is supported by,rneans of circular guide-flange 13, adapted to turn freely in channel 14A or collar 12. Frame B I prefer to construct in two parts B B?, bolted together at the points 15 15.. Sup ported by BB2 is the movable inner sheave-` frame C, likewise referably constructed in` two parts C and -2 and bolted together at or guide pulley 23, the projections 20 and 21 at an angle to the horizontal, -so

being placed that pulley 23 dips in the directionof pulley 18. This pulley serves asa support for the draft or suspending rope R in turning at right` angles in the f1 ame, both in the free and locked position ot the rope. This construe# tion enables me to support 'the load sothat its long wav is carried at approximatel lright angles to the direction of'draft and de ivered .in thisposition. It also prevents'the rope ILO from burnini es." rubbing, and thus damaging l 50, draws clamp 55 in'contact with the draft or wearing out the parts and 'causing the mechanism to stick or stall.

On the frame B are. provided projecting supporting-arms and 26, extending in the direction 'of draft, and bolted thereto at 29 and is a gripping-bracket 27, upon the outward end of which are placed suitable vertical guide-spools 31 and32 on veltical axles 33 and 34, bound together at the tcp by a strap 35 riveted tothe axles. Secured to the lower inside end of bracket 27 cr cast integral 4therewith is a supV citing-brace 36, .L carried around from the iiorizcntal to the vertical to bear against the central side por-.

tion of frame t1. 0n the end adjacent to frame C is a vertical guideway 37, land upon the surface et the frame C is a vertical earlug 38, adapted to constantly engage and move freelyv up and down in the channel 37, thus preventing the frame C from swinging outof vertical alinement.- lprefer to cast this lug integral with the frame C.

The hais A and Al of the carriage A are provided with oppcsitely-dispcsed ways or guides 39 and 40, adapted to prevent. central locking-dog 41 from moving out of the vertical. Central locking-dog 41 is provv ided with side arms 42 and 43, adapted to move up and down in the ways 39 and 40, and it comprises besides the aims described a shank having a head 44 adapted to be engaged by and raisedin ways 45 and 46 of stop S cn the overhead track 1-1. To the lowerportion of this shank is secured by bolt 48 a collar 48, provided with an annular groove 4S", en-

gaging an annular iange 47 within frame C,

thus making a swivel connection between dog 41 and frame C. Thus dog 41 hast only vertical movement within. the cari' iagc A, but is secured to and moved with the trame C in its vertical movement, but not in its swivel movement.

Projecting from the frame B in the direction opposite to that of draft is a bracket 49, to which is fulorimed at the point 50 a lever 51, passing through a recess opening in frame C. Lever 51 is ivoted within the recess 52 to the two ha ves C and C2 of the frame C at the points 53 and moves with the latter. Cn the opposite end lof lever 51 is pivoted at 54 a movable and swinging rope-clamp member 55, so arranged that it 1s suspended directly above bracket 27,Y

which forms the stationary .member of the rop.eclutch. Clampv 55 and bracket 27 haver draft rope, and likewise when head 44 is released from the ways in stop S lever 51,

rope to firmly engage it on bracket 27. As

27 and clamp 55 are oppositely-disposed intermeshing crimps adapted to form a clutch.

Pivoted at the point 57 to extending arm 58, attached toframe B at the point 59, is the compound tripping-yoke D. This yoke ,extends beneath the car and is carried around and upward at the other end to the point 60, where it is pivoted at the point 60 tothe link 61, which 1n turnis pivoted at the point 6M tripping memberf63, pivoted at '15 to the frame B; The free or upper end of `tripping'member 63 extends within the part A of the hay-carrier, where it encircles the swivel-collar 47 'of the vframe. C. This provides a swivel-ring 64,v so that the parts jrst described may"turn or swivel with the frame B. Pivoted to B at the point 66 is the compound lever L, which consists of the link 65., pivoted at 67 to B, and the trippingdog or crank member 68, pivoted to B at 66 `and to link at the point 69. The outer end of the lever'Lcis extended and pivoted to D at the point 7 0.

In order to trip the loadv at any desired elevation, I provide near the stop S the handtrip T, which consists of upright arms 71 and 72, bolted on the central or web portion of the 'overhead track 11. -These central arms carry an axle 73, on which is pivotally mounted a lever 74, carrying at one end a suitable eye 75 for the attachment of a rope or hand-cord, and a contacting surface 76 at the opposite` end, adapted to thrust, the

plunger 77 downward. Plunger 77 is carried in a vertical guide 78, its lower end resting upon the'tripping-ri ng 64. By raising the end'75 of lever 74 the surface 76 thrusts the plunger 77 downward against tripping-ring 64, causing the trip member 63 to turn on its pivot 15 and draw the lever D to the position shown in dotted lines in Fig. 6.

Within the frame B2 is`a vertical way or channel 7 9, adapted to receive the lug or guide 80. -This lug or guide is preferably cast integral with the frame C, and the channel andlug are placed directly over the member 81' of dog 68. It will thus be seen that by operating the lever L to turn bell-crank 68 on its ivot 66 that frame C may be alternately he d in elevated position and lowered within the frame B. In the position shown in solid lines in Fig. 6 the frame C is held in its elevated position; but when the tripping. lever D is 4thrust intothe position indicated by dotted lines in 'the samevgure the member S1 is swung out from under the lug 80, so that the frame C drops, carrying with it lever 51 and gripping the draft-rope in the clutch. T he operation. 0f`my device isas follows: The stop S is .secured to the .overhead track at the point most convenient for loading.

ICS

The rope Ris then carried over the pulley 19 and at the low er end secured to an eye 83 -in block-pulley P. i The other 'end is then brought through pulleys l) I, then over pulley 18, over idler 23 between spools 31 and 32, and connected with power. The carrier is then mounted on the overhead track, and the central locking-dog raises the frame C as the head .44 slips into the inclined Ways and 46. The tripping member is then thrown into the position shown in solid lines in Fig. 6, the dog 58 supporting the frame C by means of member 81 and 'lug 80. l The load is then attached in the ywellfknown manner to the hooks on pulleys P and P. In my device it is not necessary that the pulleys lr' and P should be elevated tolsucha height as to contact with the lever D and free the carrier from the stop. In order to save unnecessary'` labor, it is only necessary that the load should be elevated to a height desired to clear the ground. As soon as this height is attained vthe carrier may be freed from the stop and the load locked in. position by bringing lever 7,4 down into contact with plunger 77, thereby causing the plunger to depress the ,collar 64 and elevate the member 63, therebycausing the lever D to .turn upon the pivot- 57, raising end 65 of lever L to operate crank member 68 and draw member 81 from under the supporting-lug 80. The weight of the load itself causes the entire frame (l to i'all, carrying with it lever 51 and causing dog 55 to bite the ro e between its under surface and the brac ret 27. 'Ihe rope is 'thus grasped and lirmly held by the entire weight ot the load. 'Ihe hay-carrier is then-drawn, by means of the rope R; in the direction indicated by the arrow'a in Fig. 3, and the car is brought to the unloading-point. The load is then 4released from the sling in the usual manner and the car is drawn back toward the stop S, where the inclined ways 45 and 46 grasp the head 44 of the central tripping-dog and lil't the frame C. thus raising lever 51 and releasing the rope from' the Aclutch or clamp 55 and bracket27.

It will be apparent lromthe foregoing that the tripping may be" accomplished either by' means of the device T or by the `frame oi the pulleys P and I contacting with the lever D directly. 'Inthe latter case the freeing of the' load is the same, the use of the trippmg device T and plunger 77 being unnecessary. 'I his method of tripping may bef-most conveniently used in building Ithe top of a stack.

To prevent the end of the car nearest the draft from raising off-the track, I have provid ed the stop S with longitudinal grooves or channels and 86 and the parts A and A2 with oppositely-disposed lugs 87 and S8, adlapted to engage or run Within these channe s.

WhileI have described this particular embodiment of my invention in detail, I realize that there are considerable variations -in details of construction which may readily be made by persons skilled in the art without departing from the spirit of my invention,

an inner frame swiveled to` said dog and 'adapted tol turn with'said outer frame, a`

clamp comprising a stationary member rig- -idly supported on said outer trame, a movable member pivoted toone end of a lever, a

lever pivotally attached intermediate of its v endswithin said inner frame, fulcrumed at one end to said outer frame and attached at the otherI to said movable clamp member, dog and lever adapted alternately to engage said inner frame and hold it in elevated position and to release it to fall within said outer` framel to lock said clamp, and means .for attaching a load to said inner frame, for the purposes described. l

2. In a carrier adapted-to be drawn along an overhead way, an outer trame, an inner frame vertically movable therein, a lever pivoted at one end to said outer frame at the other to the movable member of a rope-clamp and intermediate thereof to said inner frame, said lever extending in the direction of draft 4of said carrier and being adapted to support said. inner framein lowered position, .a ropeclamp comprising a rigid member secured to said outer lrame and a movable member pivoted to said lever and adapted to move with said inner frame, and rope-supporting pul-v leys mounted upon said inner frame, to turn in" planes at approximately right angles to the direction of draft' o'l said carrier.

3. In combination with a truck-carriage adapted lto'travel on a horizontal overhead way, a dog adapted to move in vertical "guides 1n said carriage and elevate an inner `frame, a stop on said way adapted alternately to raise and drop .said'dog, an outer frame swiveled to saidtruck-carriage, an 1n- Vner frame swiveled to said dog and adapted to turn with vsaid outer frame, a rope-clamp comprising a stationary member rigidly supported on' sai outer frame, and a movable member pivoted to one end of a lever, a lever attached intermediate of its ends to said inner frame, ulcrumed` at one end to said outer frame and pivoted at the other to said'movable clamp member, a crank member adapted to hold said inner frame in elevated position, a trip-lever and link adapted to rock All `ping-lever and link adapted to operate said said crank member and drop said frame., and a collar, embracing said dog," having' a lever secured thereto pivoted to the outer frame and linked to said trip-lever and adapted to operate the same to .rock said crank member when said dog and inner frame are raised by said stop. y

4., In a carrier adapted to travel u-pon an overhead Way, a truck-carriage, 'an .outer frame, an inner frame therein carrying'supporting-pulleys, a. clamp ,comprising 'a rigid member upon said outer frame and a movable member secured to one end of a lever, a lever pivoted at one end to said outer frame and to said inner Jframe intermediate of its ends, a crank member adapted to support said inner frame in elevated position, a tripcrank member to alternately drop said 'inner frame into lowered. position and support itin elevated position, a vertical movable dog swiveledA to said inner Jframe, a collar embracing said dog having a lever end pivoted to said outer frame and a link connection with said; tripping-lever, whereby elevatingr said, dog-lifts said. inner frame and throws said crank member in position to support it and operation of said tripping-lever rocks said crank member vfrom beneath said inner frame,

' substantiallyas described.

5. Ina hay-carrier adapted to travel on an overheadway, supporting-pulleys and a ropeclamp on said carrier, a rope and pulleyblock, said clamp projecting in the direction of draft olE said carrier and said supportingpulleys being' set to turn at approximately right angles thereto, tripping mechanism adapted to be operated by contact with saidpulley-block for locking;4 said clamp, a tripping device on said way adapted to operate said tripping mechanism tolock said clamp independently of said pulley-block and means vlor unlocking saidl clamp, substantially as described.

(i. In ahay-carrier, an outer `frame, an inner frame vertically .movable therein, a triplever operated by impact frin belowthe carrier, a coilar'embracing a tripping-dog and having a lever end pivotedto said .outer frame and link connections to said trip-lever,

a tripping device adapted tol operate said trip-lever from above throughsaid lever end and link connections, a vertically-movable dog swiveled to said inner 4frame and adapted, i,

when raised, to draw up said innei` frame, -a link vfrom said trip-lever to a .crank member, and a crank member adapted' to 'be alternately rocked by said trip-leverjbeneath said vinner frame to support the same and away Afrom it to allow said innen-frame to drop,

whereby said inner frame A.may bei dropped by impactI from below the carrier 'or by said tripping` devices, and lifted and'loekedin elevated position by raising said dog.'

.7. In. combination with a ,trackhaving a stop thereon adapted to engage and lift the tripping-dog of a hay-carrier, a hay-carrier on said track having an outer frame and an inner load-supporting framevertically mtvable l therein, a tripping-dog vertically movable -in' said outer frame and swiveled to said inner frame, a trip-leverl D operable by impact` frein below the carrier, a link L secured to .one end of said lever D and tothe free endof a crank member, a 'crank member pivoted on said outer frame in position to be swung. alternately under said inner frame to support the saine, or away from itto permit it to.

drop, andl a collar about said dog having a lever end pivoted on sai'douter 'frame and'

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