US988795A - Overhead carrier. - Google Patents

Description

J. G. LUND. OVERHEAD CARRIER. APPLIOATIOH TILBD MAY 16, 1910.

Patented Apr; 4, `1 9'11..

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Attorneys JOHN G. LUND, OF MINNEAPOLIS, MINNESOTA.

OVERHEAD CARRIER.

Specification of Letters atent.

Patented Apr. 4, 1911.

Application filed 'May 16, 1910. Serial No. 561,761.

.To all 'whom it may concern:

Be it known'that I, JOHN G. LUND, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of'Minnesota, have invented a new and useful Overhead Carrier, of which the following is a specification.

This invention relates to overhead carriers for conveying litter and the like and its object is to provide a device of this character which is especially adapted for making short turns.

Another object is to provide a novel form of carriage for supporting the bucket or receptacle from the supporting rail or cable, said carriage being so constructed as to travel smoothly along the rail or cable and along the switch provided at the turns.

A still further object is to provide improved means for tripping the bucket or receptacle locking lever at the point where the dumping is to take place, the tripping device being so constructed. as to maintain its position upon the wire without the necessity of clamping or otherwise securing it thereto.

With these and other objects in view the invention consists in certain novel details of construction and combinations of parts hereinafter more fully described and pointed out in the claims.

In the accompanying drawings the preferred form of the invention has been shown.

In said drawings z--Figure 1 is a side elevation of a conveyer constructed in accordance with the present invention a portion of one of the hangers being shown in section. Fig. 2 is an end elevation of the said conveyer, the cable or rail being shown in section. Fig. 3 is a plan view of a switch on which the carriage is adapted to travel, said carriage being shown in position thereon, the bucket or receptacle being removed. Fig. l is a perspective view showing the manner of connecting the switch to the rail or cable. Fig. 5 is an enlarged section on line A-B Fig. 1. Fig. 6 is an end elevation of one of the supporting wheels and its yoke.

Referring to the figures by characters of reference 1 designates a supporting cable or rail adapted to be stretched along a straight line and secured at its ends, one end of this rail or cable, which constitutes a portion of the track over which the carriage hereinafter described is adapted to travel, being i l l extended over another rail or cable constituting a continuation of the track and which has been indicated at 2 in Fig. 3. The adjoining portions of the two track sections are adapted to be connected by an arcuate switch member 3 the ends of which are preferably channeled as shown at f1 and embrace the sections 1 and 2, there being rivets, bolts or the like extended therethrough as at 5 for the purpose of clamping said clianneled portions upon the sections 1 and 2.

The carrier constituting the present invention includes a bucket or receptacle 6 which can be of any preferred construction and has trunnions 7 pro'ecting from the ends thereof at points o center and into the lower end portions of hangers 8. These hangers extend downwardly from the ends of a cross strip 9 and may, if desired, be formed integral therewith. One of the hangers is preferably provided with longitudinally extending side flanges 10 and a slot 11 is formed in said hanger at a point adjacent but above one of the trunnions 7 A lever 12 is fulcrumed upon the cross strip 9 as indicated at413 and is extended downwardly within the channel formed between the flanges 10, there being a locking nger 14 at the lower end of this lever and which is movably mounted within the slot 11. A downwardly extending lug 15 is preferably formed at the free end of the finger 14C and is adapted to be normally seated within a notch 16 formed at the center of a cam plate 17. This cam plate is arcuate as shown in Fig. 2 and is secured to one end of the bucket or receptacle 6. Obviously, as long as the finger 14 is seated within the notch 16 the bucket 6 is prevented from swinging upon its trunnion 7. By reason of the peculiar construction of the lever 12 the inger 14 is normally held by gravity within the notch 16. The upper end of the lever 12 is bowed as indicated at 1S and is adapted to move against a trip of novel construction. As shown in Fig. 1, this trip consists of a U-shaped member 19 which is slidably mounted on the track 1 and has a block 20 pivotally mounted therein below the track. This block has upwardly diverging gripping fingers 21 integral therewith and a downwardly extending forked actuating member 22 disposed normally in thepath of the bowed portion 1S of lever 12.

A substantially A-shaped hanger 23 1s s ecured to the middle portion of the cross strip 9 and is bowed vertically as shown particularly in Fig. 5 so as to bring the upper portion thereof into position nearly in vertical alinement with the track l. A stud24 exmined point, the member the tracks until it arrives 1s not necessary to 19 is slipped along at said point. It secure the same in place tends laterally from the upper portion of vthe carrier approaches the tripping device,

this-hanger and overhangs the track,Y there being a rocking member 25 fulcrumed upon this stud at an intermediate point' provided' `at its ends with eyes 26. Steins 27 are mounted' for rotation within these eyes and project upwardly' from' inverted yokes 2 8', there being a=supporting wheel 29journaled within-each of these yokes. Each wheelhas anV annular groove 30zof suiiicient width to readily receive the curvedor switch plate`3, and an; inner groove 3l is alsoformed withintlie peripheralportionofY each wheel and which -isio'fsuiicient width to reoeivet'he rail or cable`l'.

Guard fingers 32 are pivotally mounted within vtheyokes 28 and extend downwardly below the"y whe-els 29landV at' opposite sides there-of,` theseiingers being capable ofreadi ily swingingin the directionV in which the wheels are4 traveling and being" normally positioned'belowfthe*track section so as to prevent the'wheels from jumping off ofthe section. However, when thev wheelis travelL ing, around" a curve, as upon one ofk the switch members 3, the outer guard linger 32 will vswing upwardly andslip over those portions of theftrackseotions l`and2'which pro# jectbeyondthe'o'uterA or convex edge ofl the switch member.

Aj guide loop 33 may be mounted on the flange" hanger 8 forfthe purpose oft prevent'- in'gjthedepending portion of' the lever l2 from swinging laterally.' j

`It' will beapparent that whenthe device', whiclhas been described, is. traveling along thetrack', the wheels 29, by reason ofthe fact' that they are close togetherv and are connected by vertical pivotsto therocking ar1n.25,wvill travel freely alonganabruptly curved switch plate 3;' During this move:- mentvthe outer" guard fingers 32'will slip over the projecting end' portions' of thev track sectionsl and2'andi'willreturn by gravity to their 'normal or depending positions after the swtchplate has been passed; By reason of the'constr-uction described, the carrier can be operated close to the corners of aba-rn or I When it" is desired to dump other' structure. j

the carrier at a predeterthe contents of a' bucketf engaging movement while the arcuatelportion 1'81of thev lever' l2y isbeingz depressed.- rlhis dei pression off the lever' results in the withdrawal of the linger la from the notch 16, and, inasmuch as the bucket6is'\1nountedoft' center, itwill promptly swing 'to an Vinverted position as soon'- as thus released.- As;y has beenher'etefore Lpointed outfv the 'lever1r l2 will return-l by gravity tolits* normalposition as soon as it leaves the trip.

Various changesffcanofI course be made in the construction and@ arrangement of"` the parts without departing from the spirit or sacrilicing any ofthe' advantages ofi the f invention f as d'elii'ledfiny the appendedfclaims1 l. an overheadcarrier Vincluding 'a hanger, a rock arm, yokes: swiveled within the endif portions of ythe rockf' arm', supporting wheelsjournaledwithin the'y'okes, guards depending "from l the yokes; and extending be;y lowf the supporting" wheels, said gu'a-rdsfl being pivotallyi mounted, v and blueketengag'- ing structure carried by the hanger.

2. An overhead carrier includingg centrally" oflset hanger, a= rock@ arrn centrally fulcrun'iedf upon the" upper portion* of? the hanger, yokes -swiveledE withinj the=end porL tions of the arm and wheels'- journaledf within the yokes, guard lingers depending from the yokes and efr# tending belowV the' supportingy wheels,l and structure carried by' the hanger.

In testimony thatf Ifclai'mlthe foregoingas my# own, lf have heretoatlixed' my signature in the presencef ofi two witnesses.:

JOHN G. LUWD;h lVitnessesz M. Si' THURBER; FL T. Davis.-`

of the v mounted for rotation about substantially vertical i axes, supportingV vafter it has thus been adjusted because, when

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