Патент USA US2106402код для вставки
Jan- 25, 1938. A. C-ARLESIMO_ ’ - I PULL SHOVEL ‘Filed March'lO, \' , F I ' 2,106,402 ‘ - EXCAVATOR ' ‘ 1937 ‘ ' ’ - s Sheets-Sheet 1 . k ’,f1'g.1.‘ - _. , INVENTOR. ~ A gelo ‘ BY > rlesvimo I A YORNEY. " Jan- 25, 1938. ' 2,106,402 A. CARLESIMO PULL‘SHOVEL EXCAVATOR 5 Sheets-Sheet 2 'Filed Maréh 10, 1957 , k“.0m;_ INVEIQTOR BY )2710 Carl‘ simo ' ' ( ' M A‘ ORNEY. _‘Patented Jan. 25, 1938 _ _ ' 2,106,402 - UNITED STATES- PATENT; oi-"rica ~ 2,106,402 ‘ v . _ _ ‘ rm sno'var. nxcnvaroa Angelo Carieslmo, mil-0a, Mich. ' Application mesh 10, 1931, Serial No. 130,044 ' 4 Claims. (cl. sigma) The improvements in pull shovel ‘excavators invented by me refer to the construction and de ‘ ciiically,‘ boom 3; attached by hinge 8 to its base plate pivotally mounted ‘on the rotating base 2, of the boom used in such shovels, to the de ‘sign and construction of the dipper by means curves upward beginning at the said hinge} from said imaginaryline connecting the center pin 1 of which the material is excavated and trans ferred, to means of bringing the buoket‘into a of the base hinge 6. with the pin I! located at the quick dumpi g position and to novel means in- . other end of the'boom, describing an arc sub corporated into the bucket of aiding in dumping stantially oi.’ 90 degrees. ‘The main portion of 10 the material excavated by the bucket. The advantages of the construction arising out of my innovations are obvious and many and 10 they will be clearly apparent from the detailed . stantially its own width description of my improvements, which are illus more, at its widest trated in the point. The mounting of as the .boom on the ro I tating base 2 is accomplished in the conventional . shovel consisting of a crawler and rotating base lb . assembly, supporting a boom and a dipper. Fig.v 2 shows the side elevation of the shovel disclosing’ the design of my boom and the con struction of the dipper. ' ' Fig. 3 shows a detailed side elevation of the boom. and the dipper, the latter being shown in the dumping- position. vertical plane being controlled , operated by the power plant on by cable means the control plat . The illustration in Fig. 1 shows the boom’ op 20 form of ‘ the shovel. erativeiy extending sideways overithe end of the - - Fig. 4, shows the side elevation‘ of the same position the shovel is adapted boom and dipper in a scooping position. Fig. 5 shows the plan view of the boom, the . dipper stick and the dipper. 25 Fig. 6 is a sectional elevational view taken on line 6-6 of Figure 3 and looking in the direction of the arrows. Fig. 7 is a side modi?ed form of ' s Its base may be forked, as shown in Fig. elevation, dipper. partly in section. of a‘ 1, and attached by hinges 6 to its base plate on Fig. 8 is a view similar to Figure 6 but featur ing the disclosure of Fig. 7. 36 " Similar numerals refer to similar ‘parts throughout the several views. platform 2. Now I wish to describe the construction and operation of my novel dipper 4. The innovation The view shown in Fig. 1 presents a diagram .40 40 45 ~45 employed by me. This-boom, as will be seen in Fig“. 2, does not extend in a straight line from its _ 50 hinged mounting, as is the conventional practice, but is provided with two inward curves, one at 50 the base, the other at the end‘, so that the main ., its other end to a portion of the body of the boom rises above a member i5, which is hinged to a projection on’ straight imaginary'line connecting the base hinge 55 t oi" said boom with the end of said boom. _ Spe the top of the boom 3. The pin 42, serving to connectv the journalled ends of the link i 2 and member 15, serves also as the‘ supporting axle for 2,100,409 while the angle between the boom and the dipper .~ stick widens, beams I! act upon the front end of the dipper, serving to accelerate the tilt of the the ~sheave M. A cable H, which is dead-ended at 89 by being secured to member I‘, the latter‘ dipper into a dumping position when the mouth . in turn being attached to the axle of the sheave l4, loops over the sheave- and is actuated and con trolled by means of the cable drum on the op of said dipper is'turned downward, as shown in 5 Fig. 3. It will .be'noted that the swing of the ‘ ejector l, actuatedby bar 25, is relatively smalls“ erating platform of the shovel. A pull exerted from the drum upon the cable I‘Lis transferred While the bottom of the dipper, which is actuated by the compound actionof the dipper stick 9 and by means of the sheave It to link II, to the up per end of the boom stick 9 above the pin ll, swinging said upper part in the direction .of the the beams It, describes an arc, the ejector re- 10 tains relatively more or less the same position so that with relation to the bottom of‘ the dipper, it is brought to the front part thereof, as shown in 10 pull and imparting an outward swing to the lower stick and to the dipper connected thereto. 'A pair of beams i8, disposed- crosswise of the dipper stick 9, is pivotally attached to the ' end of said Fig. 3, and is mad ‘to push out any material that forked end of the boom, at a point somewhat . forward of the pivoted connection of the boom may be therein. '- ' _ _ 16 It is possible to accelerate or~ retard the rate of the swing of the dipper by adjusting the length/ stick 9, the manner of connection being such that of the beams l8. . This may he done by employ- . each beam is pivotally suspended from each ing a shorter length of said beams‘ and for that forked end of the boom 3.‘ At their lower ends, purpose additional bearings II or more maybe 20_ the beams are plvotally attached to hinges 20, provided. When the load of the dipper has been >20 one such hinge being formed on each side plate dumped by having the dipper brought into a of the dipper substantially as shown. Shaft II dumping position, as shown in‘ Fig. 3, the front of the hinge 20 extends transversely across the of the dipper is again brought into a digging ,po width of the dipper, (connecting both its sidewalls, sition by means of cable 26 when the ejector 8 25 and serves as the axle for the pivotal support of recedes towards the back of the dipper actuated . the ejector or scraper 8, serving to remove from A modification of the dipper is shown in Fig. 7. the interior of the dipper any material that may be therein, when the dipper has been brought into While the construction is substantially the same, a dumping position as above stated. - The ejector it will be noted that the axle upon which the han-_' 30 is composed of two parts, one being the handle die of the ejector is pivoted, is carried in bearings 30 being abroad plate body 23, - located not on the top of the bucket, as shown 22 and the other provided with two parallel ribs 43 at the back. in Fig. 4, but on beams 32 corresponding to beams forming thus‘ a recess into which the lower part ‘is in Fig. 4, and that the-ejector is actuated by bybea‘msit. of the handle is ?tted and in which itis retained by lateral pins 2|. The pinsggl are of the va riety known as the shearing pi and are intend ed to break in- case of an excessive stress upon the ' . . - , I arm it. Otherwise the, arrangement of parts is 3:, similar. . ‘ . > It will be seen that the modification has oer-'- — tain advantages. Since the ejectoris pivoted on ' the movable beams 32, and the angle between the top 34 of the dipper and the beams 32 varies, the 40 middle part of the boom stick 9 at M. The blade of the ejector will be able to'reach deeper 40 ejector I has the form oi’ a shovel extending into the bucket when said angle decreases and the transversely in the dipper, substantially across bearing 38 is brought closer to said top," of the the bucket may be the whole width of said dipper. In operation, it bucket. As a result thereof, is adapted to swing within the dipper in an are built deeper. providing a lasger capacity for- 45' from the back of the dipper to its front, the lower material. > _ with respect to the end of the ejector moving closely to the bottom dipper in which‘ it is mounted, is gradual. The of said dipper l. - ejector 8. The handle of the ejector is actuated by bar 25, pivotally connected substantially to the The digging operation oij-the shoVeL'particu ejector, positioned first at the back of the dipper,v larly the digging operation of the dipper, is con; is gradually and steadily changing its relative po- 50 '50 .trolled by the cable 28 rolling over sheave 1 said-boom 3 and looping over sheave sition with respect to the bottom of the dipper, ‘ while the latter is being swung in an- arc with respect to the boom into a dumping position. As I ber 29, hingediy attached‘ to the front section of soon as this swing starts, theejector begins its pushing and ejecting action. Whenthe material 55 ' the dipper to journalled connections ll. dipperisina' of the ejector 0. when th _ _ 55 position digging and loading operation, is atthe back of is soft, this may serve to compress such material as is contained in said bucket before it is ejected. the dipper, forming the back wall therein so that , Sometimes, however; should it be desired that 65 interferes with said loading or dig-,7 the ejecting action of the ejector be delayed, it gins. When positipi’i. a may be accomplished by construction shown in so - Figi'lj wherein arm 23 is provided with a slot ll, pull exerted sliding onpin 4!. The arrangement or an equiv- ‘ ‘ intervening connecting me the dipper; brings‘ the teeth-equipped lip of the alent construction will allow some play between vthe parts, delaying the movement of the ejector dipper into a digging and ‘loading engagem As a result with respect to the interior of the dipper. In 55' with the material to be worked upon. thereof, the dipper becomes mied with said inn- other words, the arrangement will allow the ejece terial. When it is intended that brought into a dumping position, the ‘dipper be _ tor to remain idle at the beginning of the dump-. but will begin itseiectins movement . sometime after the initial swing of ‘the dipper, stick .I. Under the ~ stick and the‘buckt into a‘ dumping podtion 70 ll, link I! and the dipper ' - ' piished by means of-cable I‘l actingupon sheave pull of the cable, the dipper'stick l, which up to vIn. operating the boom, mprovisioh .is rightangle to the boom .3, assumes a new position that the dipper stickbe relieved from the stresses 70 this time has assumed a position substantially at substantiallyin continuation of the longitudinal of,the cable operatlngupon thebooin, and this is axis of the boom; All durlns the change from elected by. having the sheave‘ ll attached to the 15 the-loading position into adumpinl position; 2,100,402 dipper stick b member Ii hinged at It to the boom itself. ' ' Having thus described my ‘invention embracing the aforesaid improvements, what I wish to claim ' is new and what I wish to protect by Letters Patent is: I 1. In a steam shovel employing a boom as a part thereof, in combination a tiltable dipper, a dipper stick provided with a plurality of selective bearings pivotally mounted in said boom, ap proximately at the end thereof, one end of said stick being pivotally attached to the back end 3 ' described, in combination a boom, the main body portion of said boom being raised above the line connecting the base hinge and the point of said boom, a dipper stick adapted to' swing in an arc ' ' from the end of said boom, a dipper adapted for digging and loading purposes hingedly suspended on said dipper stick, beam means pivoted on said boom, cooperating with said dipper stick- to’ im part to the dippera tilting motion from a load ing into a dumping position, cable means actu 10 ating said dipper stick, an ejector pivotally _ of the dipper, the other. end above its pivotal‘ mounted comprising transversely disposed means mbunting on'the boom being connected to means within the interior of said dipper and extending 15 responsive to the pull of a cable, beam means substantially the whole width thereof, bar means pivotally mounted on said boom‘ forward of the to actuate said ejector, said means being slotted pivotal connection of the stick, the body of said at one end and slidingly ?tting over a'pin on the ' beam means crossing the stick and being pivotally dipper stick, said bar means co-acting with said attached at the other end of the upper middle - dipper stick to change the position of the ejector 2.0 section of the dipper, and- cable means to actu ate the said dipper and said dipper stick. 2. In a power operated pullshovel of the class described, in combination a boom, the main body portion of said boom being raised above the line connecting the base hinge and the point of said .boom, a dipper stick adapted to swing in an are ‘from the‘end of said boom, a dipper adapted for in an arc from the back of the dipperxwhen same is in a loading position to the front of the dipper 20' when same is in a dumping position, and cable means to move the dipper from the loading into ' a dumping position. _ 4. In a power operated pullshovel employing a boom as an operative part'thereof, in combination a dipper stick adapted to swing in an are from the . end of said boom, a dipper adapted for digging on said dipper stick, beam means pivoted on said and loading purposes, beam means pivoted on ,30 boom cooperating with said dipper stick to im- . said boom, cooperating with said dipper stick to impart to the ‘dipper a tilting motion from a 30 part to the dipper a tilting motion from a load loading intoa dumping position, an ejector com ing into a dumping position, cable means actu ating said dipper stick, an ejector within the prising a movable plate body transversely dis posed in said dipper and a handle to which said pivotallyirliiiounted handle plate body is attached by'means yielding under 35 dipper portion.comprising and a' platea body‘portio' secured to the ‘ ‘excess stress, means pivotally‘ and slottedly» handle by safety pins adapted to break under 'ex cess stress, means connected to said handle and mounted on the dipper stick and adapted to im co-acting with said dipper stick to change the part to the ejector a retarded initial action in position of the ejector in an are from the back ,its movement from the back of the dipper when same is in a loading position to the front of the 40 of the dipper when same is in a loading position to the front of the dipper when same isin a dipper when same is in a dumping position, and 40 cable means to move the dippervfrom the loading dumping position, and cable means to move the into the dumping position. . dipper from the loading into a dumpingposition. digging and loading purposes hingedly suspended 3. In a power operated puilshovel oi the class - ANGELO cARLEsiMo.