US1801162A - Truck concrete mixer - Google Patents

Truck concrete mixer Download PDF

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Publication number
US1801162A
US1801162A US264347A US26434728A US1801162A US 1801162 A US1801162 A US 1801162A US 264347 A US264347 A US 264347A US 26434728 A US26434728 A US 26434728A US 1801162 A US1801162 A US 1801162A
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United States
Prior art keywords
drum
mixing
truck
materials
concrete mixer
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Expired - Lifetime
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US264347A
Inventor
Jaeger Gebhard
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Jaeger Machine Co
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Jaeger Machine Co
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Publication date
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Priority to US264347A priority Critical patent/US1801162A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/42Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
    • B28C5/4272Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport with rotating drum rotating about a horizontal or inclined axis, e.g. comprising tilting or raising means for the drum

Definitions

  • This invention relates to concrete mixers and particularly to that type in which the mixing drum is mounted on a truck having an enginepropelling mechanism adapted to be utilized as the means for operating the mixing drum.
  • the object of the invention is to provide improved and simplified means wherebythe mixing drum can be driven in one direction by the engine to effect principally the mixing of the concrete materials and in the opposite direction by the same means to effect principally the discharge of the mixed materials and dispense with mechanism for raising and lowering the drum in effecting the mixing and. discharge of the concrete material's.
  • Other objects of the invention can be gathered from thedisclosure herein.
  • Fig. 2 is a rear view parts broken out.
  • I I Fig. 3 is a central longitudinal view of the mixing drum removed from the truck.
  • the truck designates the truck, it consisting of an ordinary gasoline motor vehicle and containing an engine, the propeller shaft 6 extending to a differential gearat the rear fordriving thewheels, a clutch operated by a foot lever 7, a gear shift lever 8 for controlling the usual change speed and reversing gear in box 9.
  • a power take off shaft 11 adapted to be operatedfrom the crank shaft of the engine and gears in the gear box 9 to turn said take off shaft clockwise or anti-clockwise as desired.
  • a power take-off is common in some forms of motor trucks, as-for example, such as used for raising and lowering one end of a dumping body.
  • the take-off shaft extends to'a box or housing 25 from which protrudes a normally idle short shaft 26 having fixed thereon the of the same, also with sprocket wheel 24.
  • housing 25 is a wise as desired.
  • the drum 12 designates the mixing drum which is supported in rear of the drivers'seat to roll on forward pair of'rollers l3 and rear pair of rollers 13, these rollers being journaled in stout saddles 14: and 14', respectively, secured transversely on the truck sills 15.
  • the drum is mounted on its supporting rollers 13 and 13 so that its axis of rotation is inclined to'the horizontal from its forward end to the rear, the forward rollers for the purpose being journaled in a plane above that of the journaling of the rear rollers.
  • the main body of the drum is cylindrical in form terminating at its rear in tapered portion 12, the lower side of which is inclined upwardly from the horizontal.
  • the rear end of the drum is shown as left open .for the discharge of the mixed material, no closure being required at this end as will hereinafter appear.
  • the drum is preferably supplied with the.
  • The'forward end of the drum is provided with a peripheral gear rack 20 engaged by a pinion 21 journaled in suitable bearings between the truck sills, the shaft of said gear 21 having secured thereto a sprocket wheel 22 driven by a sprocket chain 23 that is in turn driven by a smaller sprocket wheel 24 driven through shaft 11.
  • spirally arrang w eration can discharge the direction.
  • mixing blades 30 arranged in suitable fashion, preferably spiral and staggered so as to tend to cause a motion of the concrete materials in an upward direction within the drum toward,
  • the gearing of the drum is preferably, but not necessarily, such that this opmotion of the vehicle in which case the operation of the sprocket chain 23 is reversed to
  • the necessary interior of the drum by means of'a pipe 31 extending to or into the drum from a suitable tank 32 located in any suitableposition as for example above the drivers cab.
  • Said pipe 31 is provided with a valve operated by a wheel 33 to establish or cut ofi the flow of water.
  • the mixing drum shall be supplied with the materials to be mixed at a central plant or station and v the mixing operation performed during the time or'portion of the time used in driving the machine to the-job. To elfect a most thorough mix the usual dry materials can be mixed first and the water added subsequently.
  • the blades are inade sulficiently numerous in the tapered end of thedrum to prevent the material from flowing out when the mixing drum is rotated in mixing'direction; and all the blades cooperate to effect-a rapid and thorough discharge. of the mixed materials when turned in the reverse direction.
  • the machine will be useful in emergencies as where the materials are at the place of the job and the ordinary machine used by the contractor .is" temporarily out of order.
  • a mixing the like consisting of a substantially cylindrical portion having a frusto-conical dised blades in said cylindrical portion, blades in said frusto conical portion, said drums adapted for rotation in opposite directions,
  • water can be supplied to the drum for concrete materials and

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Description

April 14, 1931. G, JAEGER 1,801,162
TRUCK CONCRETE MIXER Filed March 24 1928 Znwcntor GEBHARD JAEGER dttorucgs UNITED STA Patented Apr. 14,1931
TES
GEBHARD JAEGER, OF COLUMBUS, OHIO, 'ASSIGNOR TO THE JAEGER MACHINE COM- PANY, OF COLUMBUS, OHIO, A CORPORATION OF OHIO TRUCK CONCRETE MIXER REISSUED Application filed Harch 24, 1928. Serial No. 264,347.
This invention relates to concrete mixers and particularly to that type in which the mixing drum is mounted on a truck having an enginepropelling mechanism adapted to be utilized as the means for operating the mixing drum.
The object of the invention is to provide improved and simplified means wherebythe mixing drum can be driven in one direction by the engine to effect principally the mixing of the concrete materials and in the opposite direction by the same means to effect principally the discharge of the mixed materials and dispense with mechanism for raising and lowering the drum in effecting the mixing and. discharge of the concrete material's. Other objects of the invention can be gathered from thedisclosure herein.
The invention is embodied in the example herein shown and described the features of novelty being finally claimed.
In the accompanying drawings- Figure Us a view in side elevation of the invention, parts being broken out toillustr'ate details.
Fig. 2 is a rear view parts broken out. I I Fig. 3 is a central longitudinal view of the mixing drum removed from the truck.
In the views 5 designates the truck, it consisting of an ordinary gasoline motor vehicle and containing an engine, the propeller shaft 6 extending to a differential gearat the rear fordriving thewheels, a clutch operated by a foot lever 7, a gear shift lever 8 for controlling the usual change speed and reversing gear in box 9.
In addition to these parts there is in the present instance extended from the gear box a power take off shaft 11 adapted to be operatedfrom the crank shaft of the engine and gears in the gear box 9 to turn said take off shaft clockwise or anti-clockwise as desired.
A power take-off is common in some forms of motor trucks, as-for example, such as used for raising and lowering one end of a dumping body. In the present instance the take-off shaft extends to'a box or housing 25 from which protrudes a normally idle short shaft 26 having fixed thereon the of the same, also with sprocket wheel 24. In said housing 25 is a wise as desired.
12 designates the mixing drum which is supported in rear of the drivers'seat to roll on forward pair of'rollers l3 and rear pair of rollers 13, these rollers being journaled in stout saddles 14: and 14', respectively, secured transversely on the truck sills 15. In the example shown the drum is mounted on its supporting rollers 13 and 13 so that its axis of rotation is inclined to'the horizontal from its forward end to the rear, the forward rollers for the purpose being journaled in a plane above that of the journaling of the rear rollers. The main body of the drum is cylindrical in form terminating at its rear in tapered portion 12, the lower side of which is inclined upwardly from the horizontal. The rear end of the drum is shown as left open .for the discharge of the mixed material, no closure being required at this end as will hereinafter appear.
The drum is preferably supplied with the.
The'forward end of the drum is provided with a peripheral gear rack 20 engaged by a pinion 21 journaled in suitable bearings between the truck sills, the shaft of said gear 21 having secured thereto a sprocket wheel 22 driven by a sprocket chain 23 that is in turn driven by a smaller sprocket wheel 24 driven through shaft 11.
The interior of the drum including its rear tapered end is provided with a series of a clutch by the power take-off of flanged the drum is securely positioned= thereon.
- chargingjportionat one end, spirally arrang w eration can discharge the direction.
mixing blades 30 arranged in suitable fashion, preferably spiral and staggered so as to tend to cause a motion of the concrete materials in an upward direction within the drum toward,
the forward end thereof, but as it is piled up at the forward end the material is caused to slide by. gravity rearward where it is again picked up by the more rearward blades, hence the two forces acting on the materials cause them to have, in effect, a back and forth motion in the drum in addition to the rotary motion thereby promoting their thorough mixing. The gearing of the drum is preferably, but not necessarily, such that this opmotion of the vehicle in which case the operation of the sprocket chain 23 is reversed to The necessary interior of the drum by means of'a pipe 31 extending to or into the drum from a suitable tank 32 located in any suitableposition as for example above the drivers cab. Said pipe 31 is provided with a valve operated by a wheel 33 to establish or cut ofi the flow of water. In practice it is designed that the mixing drum shall be supplied with the materials to be mixed at a central plant or station and v the mixing operation performed during the time or'portion of the time used in driving the machine to the-job. To elfect a most thorough mix the usual dry materials can be mixed first and the water added subsequently.
- The blades are inade sulficiently numerous in the tapered end of thedrum to prevent the material from flowing out when the mixing drum is rotated in mixing'direction; and all the blades cooperate to effect-a rapid and thorough discharge. of the mixed materials when turned in the reverse direction.
The machine will be useful in emergencies as where the materials are at the place of the job and the ordinary machine used by the contractor .is" temporarily out of order.
The forms, proportions and arrangements I of the parts can be changed without departin from the gist of the invention as claimed.
hat I claim is: A mixing the like consisting of a substantially cylindrical portion having a frusto-conical dised blades in said cylindrical portion, blades in said frusto conical portion, said drums adapted for rotation in opposite directions,
adapted to mix the materials when the drum is rotated in one direction andthe blades the blades in said cylindrical portion in the frusto-conical portion adapted to discharge the, mixed materials from the drum. when the drum is rotated in zthe opposite GEBHARD JAEGER. I
be coincided with the forward.
mixed materials from the drum. water can be supplied to the drum for concrete materials and
US264347A 1928-03-24 1928-03-24 Truck concrete mixer Expired - Lifetime US1801162A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2661935A (en) * 1952-09-27 1953-12-08 Willard Concrete Machinery Co Single motor transit concrete mixer
US2676003A (en) * 1951-04-03 1954-04-20 Oury Engineering Company Power-transmitting means for transit concrete mixers
US3173665A (en) * 1963-05-10 1965-03-16 William R Hall Mixing apparatus
US4069975A (en) * 1975-12-09 1978-01-24 Gutehoffnungshutte Sterkrade Aktiengesellschaft Mixer truck for shipping molten metals
US20050152217A1 (en) * 2004-01-14 2005-07-14 O'hara David Rotary drum for tablet coating with reverse-direction unloading
WO2007022551A1 (en) * 2005-07-12 2007-03-01 Kurt Himmelfreundpointner Drum mixer
US20140254301A1 (en) * 2013-03-07 2014-09-11 Mark E. Wallgren Shearing Paddles in a Drum Mixer for Low Slump Concrete

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2676003A (en) * 1951-04-03 1954-04-20 Oury Engineering Company Power-transmitting means for transit concrete mixers
US2661935A (en) * 1952-09-27 1953-12-08 Willard Concrete Machinery Co Single motor transit concrete mixer
US3173665A (en) * 1963-05-10 1965-03-16 William R Hall Mixing apparatus
US4069975A (en) * 1975-12-09 1978-01-24 Gutehoffnungshutte Sterkrade Aktiengesellschaft Mixer truck for shipping molten metals
US20050152217A1 (en) * 2004-01-14 2005-07-14 O'hara David Rotary drum for tablet coating with reverse-direction unloading
WO2007022551A1 (en) * 2005-07-12 2007-03-01 Kurt Himmelfreundpointner Drum mixer
EA012200B1 (en) * 2005-07-12 2009-08-28 Курт Химмельфройндпойнтнер Drum mixer
AU2006284518B2 (en) * 2005-07-12 2010-03-25 Kurt Himmelfreundpointner Drum mixer
US20100080079A1 (en) * 2005-07-12 2010-04-01 Kurt Himmelfreundpointner Drum mixer
US8864366B2 (en) 2005-07-12 2014-10-21 Kurt Himmelfreundpointner Drum mixer
US20140254301A1 (en) * 2013-03-07 2014-09-11 Mark E. Wallgren Shearing Paddles in a Drum Mixer for Low Slump Concrete
US9233482B2 (en) * 2013-03-07 2016-01-12 Mark E. Wallgren Shearing paddles in a drum mixer for high slump concrete

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