US2574792A - Grain conveyer and elevator - Google Patents

Description

Nov. 13, 1951 D. LOVE GRAIN CONVEYER AND ELEVATOR s Sheets-Sheet 1 Filed July 12, 1949 Dav L ci- L o v e TOR ,Wflmz Attorney Nov. 13, 1951 D. LOVE 2,574,792

GRAIN CONVEYER AND ELEVATOR Filed July 12, 1949 3 Sheets-Sheet 2 INVENTOF Da. vLd L 0 ve Attorney NOV. 13, 1 L

GRAIN CONVEYER AND ELEVATOR 3 Sheets-Sheet :5

Filed July 12, 1949 l NV E NTOR David Love lllllllw lll IILI A t'LOrTZE Y Patented Nov. 13, 1951 UNITED (ES .ELS 2,574, 792

GRAINCONVEYEB; ANniELnvA'ron David. Love, Edmontongnlbertaaiflanada Claims. (011214483226) .tThisiinven-tion relates oi'improvementsin rgrain 'liOOIlVBYOlS-ifill'd' elevatorsand'r'embo'dies features aandrlmprovementsizto twozprevious .Canadian QPatentsNumbersi39g9l'lrands4 12 ,525.

;;Broadlyrthe' invention comprisesaxtube adjusteable verticallyrand horizontally; aieed-"screw ro- :tatable in; the. tube a train;of:gears to operate the feed-.screwt'and'aa' 'power ztake off to ioperatex'the ntraincgear. Associatedxwithtthe:tube is a manual means of aeleva'tin'g *onloweringssaid tube.

The :principal oibj cot-"f: the invention iss'to provideza more efficient une'chanical' means of adapting .the power of the" vehicles"nnotorr totoperate wthef loader and this iwhthili'the [vehicle be .:in operation-or' in =a stationaryiposition.

A further? object :a-is; toiiprovide a5 conveyor 'of A forth which may be operated 'during-the change of position. 7

With thesefland other. objects-in view that may appear whilethe description proceeds the invention consists in the novelarrangementofcooperating parts as-herei-naftermore specifically-set fo'rth, claimed and shown in the accompanying drawings forming-p art or this applicatiomandin -=which:

Figsl isa*-side elevational view of a truck show- 1 ing the conveyor mounted thereon;

Fig. 2 is a plan view of the truck box showing how the driving means is transmitted from the power take-off to the conveyor driving means;

Fig. 3 represents a side elevational view of the drive assembly;

Fig. 4 is a sectional view through Figure 3;

Fig. 5 is a detail of the tube construction showing the bevel gears attached thereto;

Fig. '6 is a side view of Fig. 5;

Fig. '7 shows an enlarged detail of the extremity of the conveyor tube and the manner in which the conveyor is mounted.

Referring more in detail to the drawings in which similar reference characters designate corresponding parts throughout the several views, it will be seen the invention consists of a truck l0 having an open top body II which is used to transport grain or like material and on which my invention is mounted.

In carrying out the invention a telescopically adjustable tubular member I2 is secured to an interior wallof the body and projects aboVe' the top thereof and it also extends through the bottomor the bo'dy vvhere it iscoupled to a gear "housing i'3 mounteii beneath the floor and securedjthereto by means of bol-ts M or the like.

In the hou'sing '|'=3-are "disposed a' pair of bevel gears I 4a, meshing engagement,"-'the horizon- 'tally disposedgearbeing"coupld directly to the 'maind-rive shaft! 5-disposed"within thetubular member- 12. The'other'ge'ar i's-securedto a hor- "izont'ally disposedsecofidary*shaft l6 'whi'ch'is journalledin' the housing fl and to one-extremi- 'ty' of "which-iscoupled a universafjoint ii. To the "universal joint I1 secured a" rod [-8 and with the aid: or further rods? and =universalijoints are directly connected to a" power take off I 9, 'said-power take off being coupled to the-vehicle "-transrhis'siOh. The main *drive shaft assembly Figs. 3" and ycomprises a tubular drive shaft l 5 at the upper-extremity of which is; telescopically "mounted a I secon'daryshaft flll having its .lower portion 2| square whilethe upper portioniZZds round. When the-device is extended" upwardly *the square portion'ofthe shaft-2 fsfidies in grooves "in-'-c.ultifilar shaft I 5 and"-both' shafts "remain in constant engagement. Thefouteritube. 23 being coupled to shaft 22 followsf'same 'in'ianiupward position arid-assures"-'at' all" times that rota'ting *parts are not-*eas'ily-' acce slsil' le thus" eliminating da-nger ofserious accidents "to operators. The uppetextremity o'f the-tubularshaft l Erotates v av ithin a brass' bushing zl which'iis 'hel'd'to a tube 25- 'disposed within outer tube fi. 'Thelower extremity of said shaft I5 is also 'journaled in'a similar brass bushing 24a.

To raise or lower the tube manually the following mechanism is used. A collar 26 is fastened to the upper extremity of the tube 23.

The said collar is Z shaped and due to its particular shape it extends over the side wall of the truck body. A rack 2'! depends therefrom. A bracket 28 is secured to said side wall and a worm 29 is rotatably mounted in said bracket and engages rack 21. A crank 30 is provided to manuually operate the worm 29 which will cause the driving elements to raise or lower in accordance with the direction of rotation of said worm. The rack 21 is secured to the collar extension 3| by means of bolts 32 and slides between guides 33 of the bracket 28.

The conveyor, per se is mounted in a cradle 34 and comprises a cradle supporting bracket 35 pivotally secured to the cradle at 36 and through which extends the driving shaft 22. At the upper extremity of the said driving shaft 22 and within the cradle bracket is secured a bevel gear 31 which is in meshing engagement with a combination spur and bevel gear 38. The shaft supporting gear 38 is the pivoting point 36 between the cradle 34 and the cradle bracket 35. The power to rotate the conveyor feed screw 39 is transmitted from gear 38 to a similar gear 40 then to a common bevel gear 4|. The gear 41 is supported on a square shaft 42 and is mounted in the cradle 34 by means of a bearing frame 43.

Slidably mounted in the cradle is the conveyor tube 44. It is disposed in a ring 45 in which a projection 46 is formed to receive a guide rod 41. This guide rod will prevent any twisting of the tube 44 and will assure that it. constantly travels in a direct line. At one extremity of the tube is a discharge spout 48 while at the other is a frame 49 carrying a bushing 50 for the feed screw 39. The said frame is mounted on the tube by means of straps i secured therearound and held fast by means of bolts 52.

The feed screw is operated by means of a chain and sprocket drive. The square shaft 42 is rotated through the medium of the aforedescribed train of gears which are operated by the drive shaft 22 and in turn operates a sprocket 53 which is coupled to its extremity beyond a supporting bracket 54. A sprocket 55 is also coupled to the feed screw and both sprockets are joined by a chain 56. At its other extremity, the square shaft 42 is supported by a bushing 51 supported to the tube by means of a strap 58.

The cradle-34 will permit horizontal adjustment of the tube while said tube is rotatable and adjustable in any direction since its supporting bracket 35 is mounted on a round shaft. Since the tube is adjustable in any position and that it may be raised or lowered it will readily be understood that the pick up extremity may be set at a point higher or lower than the truck body on which it is mounted and load grain from any position.

It is believed that the construction and advantages of the invention may be apparent from the foregoing paragraphs taken in conjunction with the accompanying drawings without further detailed description.

While the preferred embodiment of the invention has been disclosed it is understood that minor changes in the details of construction, combination and arrangement of co-operating parts may be resorted to within the scope of what is claimed without departing from the spirit of the invention.

I claim:

1. A loading conveyor for motor trucks comprising a vertical telescopic shaft mounted parallel to the side wall of the truck body, a conveyor tube rotatable and rockably mounted on the upper end of said drive shaft, a screw conveyor rotatable in said tube having driving connection with said drive shaft, a casing encasing said drive shaft having connection with the upper section of said drive shaft, an extension projecting laterally from said casing beyond the side wall of the truck body, a rack bar attached to and depending from said extension, a bracket attached to the side wall of the truck body, and a worm journaled in said bracket in mesh with said rack bar adapted upon rotation to move said rack bar to raise and lower the upper section of said drive shaft to adjust the horizontal position of said conveyor tube.

2. A loading conveyor for motor trucks comprising a vertical telescopic drive shaft mounted parallel to the side wall of the truck body with the lower end of the lower section extending through the bottom of the truck body, a horizontal conveyor tube pivotally mounted above the upper end of said drive shaft, a screw conveyor rotatably mounted in said tube, gearing connecting said drive shaft with said screw conveyor, a tubular casing encasing said drive shaft, a collar attached to said casing having a lateral extension extending over the side wall of the truck body, a rack bar attached to the extension of said collar and depending therefrom in parallel relation to the side wall of the truck body, a bracket attached to the side wall of the truck body, and a worm journaled in said bracket in mesh with said rack bar adapted upon rotation to move said rack bar to raise and lower the upper section of said drive shaft to adjust the horizontal position of said conveyor tube.

DAVID LOVE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,448,835 Egger Mar. 20, 1923 2,223,894 Love Dec. 3, 1940 2,302,840 Chartrand Nov. 24, 1942 2,401,465 Cwicig June 4, 1946 2,479,899 Beyer Aug. 23, 1949 2,512,039 Siren June 20, 1950

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