US1410162A

US1410162A - Scoop-att aching means fob gbading and excavating machines

Info

Publication number: US1410162A
Authority: US
Publication date: 1922-03-21
Anticipated expiration: 1939-03-21

Description

P. M. CADWELL.

SCOOP ATTACHING MEANS FOR GRADING AND EXCAVATING MACHINES.

APPLICATION FILED AUGrS 1920.

1,410,162. Patented Mar. 21, 1922.

NWIIIIII iiifiiiilml jfiflezzgza zz PM a 6 A UNITED STATES rnmms m. GADWELL, or MALVERN, IOWA, ASSIGNOR T0 PHINEAS M. onn'w'nnr;Am)

PATENT OFFICE.-

WILLIAM H. SALYERS, DOING BUSINESS AS cnnwnnr. & SALYERS, OF'MALV'EIBQN,

IOWA. p

SCOOP-ATTAC HING MEANS FOR GRADING 'AND EXCAVATING MACHINES;

To all whom it may concern:

Be it known that I, PHINEA$ M. CADWELL, a citizen of the United States, residin at Malvern, .in' the county of Mills and tate of Iowa, have inventedjcertain new and useful Improvements in Scoop-Attaching Means for Grading and- Excavating Machines, of which the following is a specification.'

The invention relates in general to a grading orexcavating apparatus ofthe type disclosed in my Patent No. 1,355,938issued October 19,1920; and has more particular reference to a device for detachably securing the scoops of the apparatus to the actuating cable;

The object of my invention is to provide a device of the character indicated which is of -a relatively simple character, is durable and is capable of efiectively securing the clamps to the cable.

A further object of the invention is to provide a cable attaching device which shall presenta minimum amount of resistance to the movement thereof along the surface of the earth and which is not likelyto become accidentally unfastened from the cable by reason of its contact'with obstructions in the path of movement of the device.

A further object of the invention is to provide a securing means which is capable of being quickly andeasily operated to attach and detach the scoops from the cable.

' In :the accompanying drawings I have illustrated a preferredembodiment of the invention, but I recognize [that various Changes may be made in construction and arrangement without departing from the spirit and scope of the invention as ex,- pressed in the appended claims.

In Fig. 1 of the drawings, I have shown in perspective a scoop secured to a cable by means of a device constructed in accordance with the invention. Figs. 2 and 3 are respectively side and edge elevations of the device. Fig. at is a sectional view taken on line 44 of Fig. 2. Figs..5 and 6 are perspective views of the operating lever and its replaceable gripping jaw, detached.

' Referring first to Fig.1, 1 designates the actuating'cable of a grading or excavating apparatus such as that illustrated and de s'cribed'in my patent above referred to; and 2 indicates a scoop which is to be secured Specification of Letters Patent. Patented Mar, 21, '1922 Application filed August 5, 1920. Serial No. 401359. V

to the cable by my improved securing devlce, designated generally by the numeral 3.

The securing device 3 comprising gener ally a base plate 4 of substantial length and thickness, and having a flat face 5. At the lower edge of the plate 4 there is provided a shoe 6,'which is made integral with the plate and projects outwardly therefrom a substantial distance. This shoeis shaped upon its under side to provide a fiat sliding surface and rounded ends; and upon itsupper side the shoe has a groove 7- for receiving thecable 1. I V ,5 The means, for coactin v with the shoe 6 to hold the cable against movement with reference thereto comprises a hand lever 8 having at its inner end a'rounded .enlar ment or disk 9 apertured at 10 eccentricaIly thereof to receive a bearing stud 11. This stud. is cast integral with the plate A and i i extends outwardly from the flat face 5 of the plate a distance approximately equal to the width of the shoe 6. Rigid with the rounded portion 9 of the lever is a member 12 arcuate in form and having serrated or toothed edges 13 upon its periphery adapted to engage with the cablelying in the groove 7. This'member 12 may, if desired, be made separately from the lever8 so that it may be renewed from time to time .as it becomes worn in use. To this end theinner side of the enlarged portion 9' of'the lever is cut away as shown at 14 (Fig. 5), and

the member 12 is made rigid-with a plate I 15 apertured at 16 to receive the stud 11.

The member 12 is made of substantially greater thickness than the plate 15, or approximately equal to the combined'thickness of the portion 9 and plate 15, and the portion 9 of the lever is cut away as at 17 so as to receive the member 12. Moreover, one edge 18 of the plate 15 is adapted to engage with a shoulder 19 provided in cutting away the lever 8 to form the portion 9. The

bearing stud 11 is apertured to receive a IVhen the parts are thus operatively assomade of ciated, it will be apparent that the member l fl i s made rigid with the lever 8, being held a" trelatlve niovement. by reason of its inter tting en agement with the cut away portion 17 of t e portion 9 of the lever, and also by vthe engagement-of theedge 18 of the plate 15 withthe shoulder 19..

provide fer the attachment of the device to the scoop, the base plate has a rearwardly extending portion 21, preferably adually increasin thickness (Fig."3l. hisportion 21 is s otted as at 22 to receive the foreniost link of the scoop chain 23, and a bolt 24 is passed through apertures 25 and across the slot for attaching the'chain tothe device. e

The parts are so proportioned and arranged thaflwhen the cable is grippedbetween the shoe 6 and the merhber 12, the handle 8 egitendsin a rearward directionso that if the travel of the cable the lever sliiiuld engage with an obstruction, itjwill nierely tend to tighten its grip on the cable rather than to be swung into its inoperative or releasingfposition. Moreover, the mounaag oi, the member 12 with reference tothe pivot 20 is such that the forvvardpull of the cable tends tp move the member 12 toward the shoe 6 and hence into engageinentwith the cable 1. e b It willfbe apparent that I haveprovided a securing device for thefscoops of a gradingor excavating apparatus which is of a highly practical character. The constructibn iS relatively simple andyet is of such arugged nature as to be very strong and dili'a e. im "ortant advantage is "that the device is part cularly adapted for travel the cab le Thus when the device occupiesits'nbnnal position in 'use the shoe "6 serves teslidably support thedevice upon ttegr nna, a e shap of the shoebeingsuch a'sto "oifer a minimum amount of resistance to heftraveiof the device withfthe cable. If, however, thedevice'should assume an injxtertetl positionjsojthat it rests on the handie 8,fasit happens when the cableis'raised above-the round, the handle,by reason of iiat' it extends downwardly and rearwardlvtends to move the member 12 so as to tighten its urtherniore, any obstructions engagiii with j tlie handle in, its travel merely ten to tiglitenthe grip of the device upon the table,

Itwill also' be that the shoe, in addition 'to 1ts function as such, is so arranged .onTthe1plate4 as to coact in an advantageous manner with the member 12 and lever 8 for eifectively securing the cable against. movement with. reference to e the device.. \Vheuit is desired to release the derice from the cable, as when the scoop has been dumped, this nay be readily accomplishedby the operation of the lever 8, as

'rip upon the cable.

may also be the attachment of the device to the oppositely traveling strand of the cable for the returner the scoop.

I claim as my invention: I e;

1. In excavating or grading apparatus and the like,'means for detachably securing an excavating scoop to'an actuating cable. comprising a base plate havingupon one edge a portion of substantial thickness providing asli'oehavinga fiat face upon which .the base plate may slide over the ground, a

lever pivoted upon the .baseplate adjacent saidshoeand having rigidtherewith ajiiiember'niovable towardthe inner side of "said shoe so asto grip a cable between itand the shoe, .said plate having at its rear enda portionslotted to receive the link of achain connected with said scoop and 'apertuifedfto receive a bolt adapted to be passed'through said link -whereby. to detachably secure the. chain to the plate. a

p p "2. a grading or excavating apparatus, nieans l fordetachably securing an excavating-1 scoop tojan actuating cable comprising} base platehaving upon one edge; an integral portion of substantially greater thickness than the plate proper whereby to provide a shoe'liaving a'flat'underside upon which the plate may slide over the ground in use, alever pivoted upon the base plate and having eccentrica'lly of its pivot a rigid member movable toward the inner-side ofsaid 'sh oe so as to grip the cable between it and; the shoe andmeans at the rear edge of said plate for'conn'ecting the scoop to the plate. 7 t

3. In acable; grading or excavating appiia ratus,;i1 1eans 'for detachably securing an ex"- cavating scoop to the actuating cable cornprising a base plate havingajflat face stud rising froin said face, said plate and stud having an aperture therethrough,"one edge of said plateha'ving'a portion projecting from said flat fiLCef a lever having a rounded portion at its inner endinounte d eccentrically upon said stud, a .disk fals o mounted eccentrically on'said stud having a member rigid therewith so as to be movable toward and froinsaid projecting portionof the base plate, said disk and its rn'eniberIbeing adapted to interengagewith thelrounde d portion of the lever whereby to. be held against relative rotation, a bolt. entered through saidaperture inthe base plate and js'tud for clamping the lever'in position upon the base plate while maintaining the disk operativeassociation with the lever, "and means at the rear endof the base plate for detachablysecuring it to the scoop. h

A. A device for detachably securing a scoop of a road grading or excavating apparatus. to an actuating cable comprising, in combinationpa base plate of-substantial lengthlhaving a fiat face and at one edgea fix di e f qnp r di g em. d a e, a a bearing stud also protruding from said flat face a distance substantially equal to the protrusion of the jaw portion, a hand lever having at its inner end a disk portion eccentrically mounted on said stud and having rigid therewith a jaw portion movable in the operation of the lever toward and from the fixed jaw portion on the base plate, a bolt entered through said stud and the base plate for securing the hand lever in operative position upon the base plate, said handle being adapted when in clamping position to extend in a rearward direction with reference to the base plate, and means at the rear end of the base plate for detachably securing the scoop thereto.

In testimony whereof, I have hereunto set my hand.

v'PHINEAS M. CADWELL.