US1234849A - Elevated-conveyer carriage. - Google Patents

Description

C. E. YARIAN.

ELEVATED CONVEYER CARRIAGE.

APPLICATION FILED JAN.1Z, 19H.

Patented July 31,. 1917.

CHARLES E. YARIAN, OF GALION, OHIO.

ELEVATED-CONVEYER CARRIAGE.

I Specification of Letters Patent.

Patented July 31, 1917.

Application filed January 12, 1917. Serial No. 142,078.

To all whom it may concern:

Be it known that I, CHARLES E YARIAN, a citizen of the United States, resldlng at Gralion, in the county of Crawford and State of Ohio, have invented certain new and useful Improvements in Elevated-Conveyer Carriages; and I 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.

This invention relates to traveling carriages to be used in connection with elevated conveyers or traversing hoists, and more particularly to such carriages as are provided with means to automatically retain the load at a predetermined height during the course of its travel, and to automatically cause the load to be dropped at any desired point.

The object of the invention is to provide a traveling carriage to be used in connection with an elevated carrier or traversing hoist which will be simple in construction and positive in its operation; that will automatically catch the load when it is raised to a predetermined height, and retain it at such height throughout its period of travel; and that will automatically drop the load at any desired point.

With these and other objects in View that may more fully hereinafter appear, the invention comprises a substantial frame provided at its upper end with a plurality of wheels suitably journaled upon. the opposite sides of the frame, said wheels designed to roll upon a suitable over-head track, means being thereby provided to permit the travel of the carriage back and forth upon the track. At the lower end of the carriage is provided a pulley suitably journaled between the opposite sides of the carriage. The hoisting cable is preferably fastened at one end of the bottom ofthe carriage frame; thence led around the pulley of the fall; thence around the pulley of the carriage, and thence to the drum of the hoisting engine.

The carriage is further provided with a plurality of cross-members, said members being mounted preferably parallel to the line of centers of the above mentioned wheels, and positioned between the wheels and the pulley. Pivotably mounted between the lower cross-members of the carrier and preferably midway between the ends thereof, is a latch provided with a pivoted lip, said lip designed to catch and retain an upright hook member carried by the fall. The pivoted catch is operated by a system of spring actuated levers, one of which terminates in close proximity to the underside of the overhead track, and engages a plu rality of trips mounted thereon, said trips being so mounted as to permit the passage of the carriage in one direction, but to prevent its passage in the opposite direction, owing to the engagement between the above mentioned lever end and the trips, saidengagement causing the pivoted catch to release the fall and drop the load; it being understood that means are provided to ma' nipulate the trips in such a manner as to cause the fall and its load to drop at any desired point.

One embodiment of my invention is hereinafter fully described and illustrated in the accompanying drawings, and pointed out more particularly in the appended claims, it being fully understood that such changes may be made in size, proportion and minor details of construction as fall within the scope of the appended claims, without departing from, or sacrificing any of the advantages of the invention.

In the accompanying drawings:

Figure 1 is a side elevation of my invention, part of the carriage being broken away.

Fig. 2 is a sectional view through the track showing the manner of mounting the trips and a means for actuating the same. I

Fig. 3 is a detail view of the carriage, parts being broken away to show the position of the pivoted catch and its actuating levers.

Fig. 4 is a detail view of the pivoted catch, parts being broken away to show the actuating means for the pivoted lip. Like reference numerals are used to designate corresponding parts throughout.

Referring more particularly to the embodiment of my invention illustrated in the accompanying drawings, 1 designates a suitable track which may be supported by the upright standards 2, as shown in Fig. 1, or by overhead hangers (not shown), but provisions for which have been provided as will be hereinafter explained.

At various points on the underside of the track 1 are mounted a plurality of trips 3, said trips being positioned at the points where it may be desired to drop the load being carried by the conveyer. The trips 3 may be secured to the track 1 by yokes 4, said yokes providing bearing surfaces for a pintle 5, upon which the trip 3 is rotatably mounted. At the positions desired to mount said trips 3, the track 1 is recessed as at 6, said recess having a preferably cylindrical hole 7 communicating with the upper side of the track 1, as shown in Fig. 2. The trip 3 is provided with an eye or staple 8 secured to its upper face 9, said staple or eye simultaneously providing re taining means for a resilient member 10, and means for fastening a rod 11 to said trip 3, the purpose of said rod to be hereinafter explained. The resilient member through its engagement with the upper face 12 of the recess 6 retains the trip 3 in proper position relative to the underside of track 1.

The rod 11 is provided at its upper end with an eye 13, said eye designed to receive a cable or rope 14, said cable to be carried by a series of pulleys or otherwise, to a place within reach of the hoist operator, whereby the operator may manipulate the trips 3 to drop the load carried by the conveyer at any desired point, said operation to be hereinafter fully explained.

The track 1 may be of any suitable form or material designed to receive the conveyer carriage. The carriage is provided at its upper end with a plurality of wheels or rollers 15, said wheels as shown in the drawings being four in number, but it being understood that I do not limit myself to this particular number of wheels or rollers. The rollers are preferably journaled on pintles 16 secured to the opposite sides of the carriage frame and are spaced apart a suitable distance to permit the passage between them of the cable 14 and also, if desired, of a plurality of overhead hangers, as hereinbefore referred to.

It will be seen from a comparison of Figs. 1 and 3 of the drawing that the conveyor carriage is adapted to straddle the track 1. It is composed of two substantially identical frames, which when assembled, as shown in Fi 3, have their corresponding edges coinciding and spaced apart to permit the insertion of the track 1 between the same, and also to permit the latch mechanism to be mounted between the same. The frames are provided with a plurality of cross-members 17, 18 and 19, said members being preferably positioned parallel to the plane of centers of the wheels or rollers 15. These cross-members are designed to act in coperation with the members 20 and 21 of the identical frames to retain the same in substantially rigid position.

Between the lowermost cross-members 19 and approximately midway between the members 21 of the identical frames is mounted by means of pintle 22 an angular latch 23, the preferred construction of which is shown in Fig. 4. The latch 23 is preferably provided with recessed chamber 24 at.

The pivoted latch 23 is provided at one end with a yoke 29 designed to receive a pintle 30 upon which is 'rotatably mounted a link 31.

Pivotably mounted upon the cross-members 18, by a pintle 32, is a bellcrank lever 33, the lower end of said bellcrank lever being pivotably connected with the upper end of link 31 and rovided with a helical spring member 34 attached to crossmember 18. It will be seen that the energy of the helical spring 34 is designed to keep the pivoted latch '23 in such position that its face 35 is substantially perpendicular to the cross-member 19 and the upper arm 36 of the bell-crank lever 33 against the stop 37 mounted upon the cross member 18, said stop being so positioned that when theiarm 36 abuts against said stop, said arm will be substantially perpendicular to the crossmembers 18. The end 36 is so positioned relative to the trips 3 that when the "carria-ge is drawn forward by means of cable 46, as hereinafter described, the trips 3 are forced into their respective recesses 6, thereby allowing the carriage free passage, but when said carriage is drawn in the opposite direction, the trips 3 being held in their outward position by the resilient members 10, said arm 36 abuts against the vertical face o'f'the trips whereby the bell-crank lever 33 is rotated upon its pintle 32, causing'the pivoted latch 23 to be rotated on its pintle 22,

as will be hereinafter described, and when said arm 36 has cleared the trip 3, the bellcra'nk lever 33 will be rotated on its pintle 32 by means of the energy of the helical spring 34, thereby causing the pivoted latch 23 to assume its operative position, as shown in Figs. 1 and 4. 7

At the lower end of the carriage, and rotatably mounted between the members 19 and 21 of the identical frames is rotatably mounted a pulley 38.

At the opposite end of the cross-members 19, is provided a pintle 39 upon which is secured a cable 40. the cable40 is passed around the pulley 41 of the fall 42, thence upward and around pulley 38, and thence to the drum of a hoist. The fall 42 is provided with means 43 to receive a bucket or other receptacle, not shown, for the purpose of receiving a load, and is provided at its upper end with an From the pintle 39 y ed on and between the cross-members 18 opposite the latch 23, whereby the hook-member 44 may be guided into proper engagement with the link 25 of the latch.

Between the members 18 and preferably 7 above the pintle 39 is a pintle 45 designed to receive a cable 46, said cable designed to extend in a position substantially parallel to the track 1, and beneath said track throughout its entire length, and, by means of pulley 47 and others as may be needed, to be conveyed to a drum of the hoist hereinbefore mentioned. 7

The operation of the device is as follows: The fall 42 is lowered by means of the cable 40 and the load applied to the hook 43. The load is then hoisted by means of the cable 40 until the hook member 44 carried by the fall 42 engages the lip 25 of the latch 23, it being understood that by varying the length of the hook member 44, the height to which the load is to be raised, prior to its travel, may be varied. Upon the engagement of the hook-member 44 with the pivoted lip 25 of the latch 23, the pivoted lip 25 is forced into the chamber 24 by means of the sliding engagement of the inclined face 48 of the hook 44, and the inclined face 49 of the pivoted lip 25. Upon being forced into the chamber 24, the pivoted lip 25 by reason of the position of pintle 26 is provided with potential energy suflicient to allow it to resume its outward position when the point 50 of the hook member 44 has passed the point 51 of the pivoted lip 25, or if said lip 25 is provided with resilient means 27 as shown in Fig. 4, the energy of said resilient means will force the lip 25 into its outward position whereupon the elevating motion of the load is stopped andthe load allowed to sink until the surface 52 of the hook 44 engages the surface 53 of the pivoted lip 25, said engagement catching and retaining the load at this height.

Force is now applied to the cable 46 by means of the hoist as hereinbefore mentioned, and the cable 40 allowed to pass freely from the drum upon which it is wound. Upon the application of this force to the cable 46, the carriage and its load move along the track 1, the arm 36 of the bell-crank lever 33 engaging successively the trips 3, said trips being forced into their respective recesses 6, and after the passage of the carriage being forced into their outward position again by means of the resilient members 10.

When the point at which the load is to be dropped is reached, the carriage is pulled past the trip at this position and then brought back until the arm 36 engages the perpendicular face of the trip, thereby causing the pivoted latch 23 to be rotated on its pintle 22 until thelip 25 is out of engagement with the hook member 44, whereupon the load is'free to fall as clearly shown in Fig. 3 of the drawings. I

I l/Vhen the load has been discharged, the

fall 42 is again hoisted by means of the cable 40 until the hook 44 has engaged the pivoted lip 25 as hereinbefore described. The cable 46 is-then released, the cable 14 is pulled so as to draw the trips 3 into their respective recesses 6 and the cable 40 wound on its drum, whereby the carriage is drawn back to its former position, the arm 36 clearing the trips 3 in their inward position.

Having thus described my invention, what Iclaimis: 1. The combination with an overheadtrack, of'a load carrying carriage toride on said track, means thereon to permit the free passage of the carriage in one direction, but to normally obstruct its passage'in the opposite direction, and means to manually provide for free passage of the carriage in both directions.

' 2. The combination with an overhead plurality of rollers carried by the frames.

to engage the track, means attached to said carriage to receive a load, a plurality of pivoted trips mounted on the track, and a pivoted latch actuated by said trips to retain the load at a predetermined height.

4. A device of the class described comprising a plurality of substantially identical frames retained rigidly in coincidence with each other but spaced apart, a plurality of cross members mounted on said frames, a spring actuated latch pivotally mounted upon and between said cross members, means mounted on one cross member to cooperate with the spring actuated latch and retain it in operative position and a plurality of pivoted trips carried by the track to cause the latch to be actuated.

5. A device of the class described, comprising a traveling carriage for elevated conveyers, a fall carried by said carriage, means on said fall to receive a load, an upright hook member carried by said fall and a latch on the carriage provided with a pivoted lip to engage said hook member to catch and retain the fall and its load at a predetermined height.

6. In combination with a traveling carriage for elevated conveyers, means to suspend a load therefrom, a latch mechanism comprising a plurality of spring actuated levers and an angular latch provided With a spring actuated retaining lip to retain and release the load With respect to the carriage.

7. In combination With a traveling carriage for elevated conveyors, a fall, an upright hook member carried by said fall, a spring actuated latch pivotally mounted above said fallto engage said hook member, a system of levers pivotally attached to said latch to move the latch into and out of operative engagement With the hook-mem ber, a helical spring to retain said latch in its operative position, and meansto bring said hook member into engagement With the latch.

8. A device of the class described comprising a traveling carriage for elevated conveyers, a fall carried by said carriage,

means on said fall to receive a load, an upright hook member carried by said fall, a

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spring actuatedlatch pivotally mounted on said carriage above said fall, a gravity actuated lip pivotally mounted Within said latch to engage and retain the hook carried by the fall, and a system of spring actuated levers carried by the carriage and attached to the latch to rotate saidlatch on its pivot, thereby releasing the fall from engagement with the lip of the latch.

9. In a device of the class described, the combination of an overhead track, a travel" ing carriage suspended therefrom, a fall carried by said carriage,-means carried by said fall to receive aload, an upright hook member carried by said fall, a latch pivotally mounted on said carriage above the fall, a lip pivotally mounted Within said latch, a system of levers attached to said latch and carried by said carriage, cooperative means to retain the lever and latch inoperative position, a plurality of trips mounted 'on the track to engage one of said levers to actuate the pivoted latch, and means to bring said hook member into engagement with the pivoted lip of the latch.

In testimony whereof, I aflix my signature.

CHARLES E. YARIAN.

Washington, D. G.

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