US2828082A - Garbage disposal truck - Google Patents

Description

March 25, 1958 H. VANDER `VEEN 2,828,082

f y GARBAGE DISPOSAL TRUCK v Fil-ved Nov. 19, 1954 2 sheets-sheet 1 Dvx/ENTOR. mea/n f4/voe@ ves/v ABY March 25, 1958 l H. VANDER VEEN 2,828,082

` GARBAGE: DISPOSAL TRUCK Filed Nov. 19, 1954 2 Sheets-Sheet 2 aLl/2.4M' val/vase ves/v United States Patent GARBAGE DISPOSAL TRUCK Hiram Vander Veen, Berwyn, Ill.

Application November 19, 1954, Serial No. 470,006 1 Claim. (ci. 241-46) This invention relates to devices for garbage disposal purposes, and more particularly has reference to a garbage collection disposal truck for collecting untreated garbage and grinding the garbage with water and ushing the ground garbage down a sewer manhole or the like.

The primary object of the invention is to provide a practical and efficient device of this kind which reduces the work and expense of municipal collection and disposal of garbage and enables a smaller number of trucks to accomplish collection and disposal of garbage in a municipality.

Another object of the invention is to provide in a device of this kind a grinding unit which is easily installed on existing garbage collection trucks, the unit being eilicient and reliable in operation, being capable of easy installation, and being capable of being made in mechanically eicient and easily served forms at relatively low cost.

Other objects of the invention will appear from Vthe following description, and from the accompanying drawings, in which like reference characters designate like parts throughout the several views, and wherein:

Figurc l is a fragmentary side elevational view of a device in accordance with the present invention showing it in relation to a fire-plug and a sewer manhole;

Figure 2 is a top plan view of Figure l;

Figure 3 is an enlarged vertical longitudinal sectional view taken on line 3-3 of Figure l;

Figure 4 is a vertical transverse sectional view, on the scale of Figure 3, taken on line 4 4 of Figure 2;

Figure 5 is a transverse vertical sectional view on line 5-5 of Figure 3; and

Figure 6 is a fragmentary transverse vertical sectional view on line 6--6 of Figure 3.

Referring in detail to the drawings, a garbage collection truck 10 is illustrated in Figure 2 as having a power take oir shaft 12 extending to the rear thereof and terminating in a gear box 14 from which extends a lateral shaft 16 having on its laterally outward end a drive sprocket 18 about which is trained a sprocket chain 20. The truck 10 has a back wall 11 having in the lower part thereof a discharge opening 13 normally closed by a vertically movable gate 15. The floor 17 of the truck terminates at its rear end in a rearwardly declining lip 19 forming the bottom of the discharge opening 13. A chassis cross member 21 at the rear of the truck 10 underlies the floor 17 in the region of the back wall 11, as shown in Figures 4 and 5. In accordance with the present invention, a garbage disposal device, generally designated 29, is mounted on the rear side of the truck cross member 21, beneath the garbage discharge opening 13. The device 29 comprises a horizontally elongated housing 32 having a front wall 31, a rear wall 33, a bottom wall 35, and atop wall 37. The top wall 37 has therein an elongated opening 39' into which the declining lip 19 extends.r

Within the housing 32 are first and second vertical par- ICC ing chamber 43, and the partition walls are inwardly spaced from related ends of the housing, which have thereon inwardly projecting flanges 45 and 47, respectively. Vertical end plates 49 and 51 are secured to the flanges 45 and 47 and close the ends of the housing 32.

In the upper part of the grinding chamber 43 is a pair of meshed helical grinding rolls 44 and 46 which are journaled at one end in the partition wall 41, as indicated at 49. The rolls reach to the partition wall 39 and have shafts 40 extending therethrough in bearings 51 on the wall 39. In the space between the partition wall 39 and the end plate 49, serving as a gear case, one of the shafts 40 has thereon a gear 36 which is in mesh with a pinion'34 on a shaft 24 which is journaled in bearing 53 on the partition wall 39 and a bearing 26 on the end plate 49. On its outer end the shaft 24 has a sprocket wheel 22 over which is trained the chain 20. The grinding rolls 44 and 46 have threads 55 which are meshed so that the rolls rotate together.

Declining guide plates 48 and 50 on the upper ends of t the `housing front and rear walls 31 and 33 have free titicn walls 39 and 41 which dene therebetween a grindedges closely spaced from adjacent sides of the tops of the rolls 44 and 46, as shown in Figure 4, whereby garbage emerging from the truck discharge opening 13 is guided onto the rolls.

Centered beneath the rolls 44 and 46 is a screw conveyor 66, having a stub shaft 42 on one end journaled through the partition wall 39 in a bearing 57 and having thereon a gear 38 in mesh with the pinion 34. On the other end of the conveyor is a stub shaft 59 which is journaled through a foraminous plate 70 secured to the outer side of the partition wall 41 across an opening 68 in this wall, whereby garbage ground by the rolls 44 and 46 is conveyed by the conveyor 66 and forced through the foraminous plate 70 into the discharge chamber 61 defined between the partition wall 41 andthe housing end plate 51. A nozzle 76 depends from the housing bottom wall at the discharge chamber 61, and a flexible hose 78 has one end secured around the nozzle 76 and a free end 77 adapted to be positioned in a sewer manhole S.

The housing bottom wall 35 is interrupted between the partition walls 39 and 41 and thereat takes the form of a V-shaped trough 67, as shown in Figure 4, with the conveyor 66 occupying the apex portion 79 thereof.

Secured at its ends upon the top wall-37 of the housing 32, as indicated at 79, and extending forwardly partly across the opening 39' in the housing top wall 37 which extends between the partition walls 39 and 41, is a water spray nozzle 56 which includes a perforated flat bottom wall 60 and an imperforate top wall 83, with a central fitting 62 on the rear thereof, to which is connected one end of a water hose 64 whose other end is adapted to be connected to a lire hydrant H or other source of water under pressure.

When the power take-olf 12 is in operation and the gate 15 open and garbage falling through the truck back wall opening 13 into the opening 39 of the housing 32, with water being sprayed by the nozzle 56, the garbage will be ground by the rolls 44 and 46 and pass downwardly therebetween and be forced, together with entrained water, through the foraminous plate 70, into the discharge chamber 61, and discharged through the hose 78 into the sewer opening S.

It is believed apparent that the invention is not necessarily contined to the specic use or uses thereof described above, since it may be utilized for any purpose to which it may be suited. Nor is the invention to be necessarily limited to the specific construction illustrated and described, since such construction is only intended to be illustrative of the principles, it being considered that Athe invention comprehends any minor change in construe tin' that'fmayf be-permitted'within the scope of the appended t claim. Y Y

What is claimed is:

In the garbage disposalunit, a horizontally elongated I 5 said discharge chamber, a foramlnous plate secured across housing having top, bottom, and 'frontVand-rearlwalls and ends, firstand second vertical partitionwall'sfin` said housing extending between said wallsand'lspaced inwardly from saidends, said partitionwallsdefiningl aggrinding chamber therebetween andsaid'top wall having an intake opening*Y extending between said partitionpwal-ls, 1a pair of meshed threaded grinding rolls'inthe `upper-part of said grinding chamber, said rollshaving `oneend journaledinsaidsecond partitionwalls and stub'lshafts journaledthrough said first partition-wall, end plates secured to and'closing the ends of they housing-andldeninga gear case with said first partition wall andia discharge chamber withy said secondpartition wall, oneofthe grinding roll shafts having a gear thereon in said* gearcase, a drive shaft journaledthrough the end plateofpthe gear caseandhaving a pinion-in the gear casemeshed with the roll shaft pinion, said housing bottornlwall-being` interrupted lbetween said first and second partition-wa11s-and formed into a V-shaped trough having an-apex,al screw conveyor positioned in the apex'ofvthe troughiandfhaving a first stub shaft ljournaled throughsaidfrst partitio'iirwallj 2,828,082 A "e e K f M .i 4i i and havingY thereon a gear in mesh with said pinion in the -gear case, saidconveyor having a secondV stub shaft, said second partition wall having a discharge opening providing communication between said grinding chamber and ing bottom wall at said dischargeichamber, and a water nozzle mounted `upon thelhousingptop wall and extend- 10 ing lengthwise of-thegarbage-intake opening and partially across the intake openingrfromthe rear vwall of the housing.

Reference-s Cited the Vfile of` this patent 15 UNITED STATES PATENTS 1,218,634 Dodds Mar. 13, 1917 1,459,713 Beggs .Tune 26, 1923 2,047,005, Coscia .luly 7,., 1936 2,198,547 '1, Mar`h, Apr. 23, 1940 2,446,073 Bjorklund, f .lub/ 27,1948 2,594,054- McNamararetal. 'Apr. 22,1952 2,594,635V Gamaunt v.' Apr. 29,1952 2,670,774

Higer Mar. 22,195.4

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