US675798A - Scraper for mixing-machines. - Google Patents

Scraper for mixing-machines. Download PDF

Info

Publication number
US675798A
US675798A US2462800A US1900024628A US675798A US 675798 A US675798 A US 675798A US 2462800 A US2462800 A US 2462800A US 1900024628 A US1900024628 A US 1900024628A US 675798 A US675798 A US 675798A
Authority
US
United States
Prior art keywords
mixing
blade
scraper
hub
cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US2462800A
Inventor
Charles F Sliger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHARLES F DUBOSE
Original Assignee
CHARLES F DUBOSE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHARLES F DUBOSE filed Critical CHARLES F DUBOSE
Priority to US2462800A priority Critical patent/US675798A/en
Application granted granted Critical
Publication of US675798A publication Critical patent/US675798A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/18—Mixing in containers to which motion is imparted to effect the mixing
    • B28C5/20—Mixing in containers to which motion is imparted to effect the mixing rotating about a horizontal or substantially horizontal axis during mixing, e.g. without independent stirrers
    • B28C5/2045—Parts or components
    • B28C5/2054—Drums, e.g. provided with non-rotary mixing blades

Definitions

  • This invention relates to mixing-machines in general, such as are employed in the mixing of asphalt and similar materials, and it has specific reference to a scraper attachment for the mixing-cylinder wherewith the material that may cling to the inner surface of the cylinder may be scraped off and the mixing operation may be thoroughly performed.
  • Figure l is a central longitudinal section of a mixing-cylinder having a series of scrapers disposed therein and constructed in accordance with the present invention.
  • Fig. 2 is a transverse section of Fig. 1 and showing a scraper in side elevation.
  • Fig. 3 is a perspective view of the scraper.
  • 5 represents the cylinder of an asphalt mixing and heating machine, supported upon bearingrollers 6 and 7, which are in turn suitably journaled, as shown.
  • This cylinder has open ends, and in practice the asphalt to be mixed is fed in at one end of the cylinder and is discharged at the opposite end, the cylinder being rotated during the operation and heated.
  • this operation of mixing and heating there is a tendency for the asphalt to cling to the inner surface of the cylinder, and in order to dislodge this material there is provided a series of independently-pivoted scrapers.
  • Each of the scrapers is mounted upon a shaft 10, which is supported in uprights 11 at the ends of the cylinder, said shaft being passed longitudinally through the cylinder, adjacent the upper side thereof and parallel with the axis of the cylinder.
  • Each of the scrapers as shown in Fig. 3 of the drawings, consists of a hub portion 12, having a radially-extending blade 13, the base of which is thickened and lies parallel with the axis of the hub, which is cylindrical, said blade being twisted so that its outer edge 15 lies at Serial No. 24,628. (No model.)
  • each blade is provided with a counterbalance consisting of a weight 18, slidably mounted upon an arm 19, extending radially from the hub 12 and at an obtuse angle to the extension of the blade, the weight being held in place upon the arm by a set-screw 20, whereby it may be shifted to vary its counterbalancing effect and correspondingly vary the stability of the scraper.
  • the scraper-blade is increased in width at its outer edge to project beyond the ends of the hub, whereby when a number of blades are disposed with their scraping edges parallel and the hubs in contact successively, as shown in Fig. 1 of the drawings, the edge of one blade will overlap the edge of the succeeding blade and the inner face of the cylinder or drum will be scraped continuously.
  • This construction of the blades also affords passages between the blades for passage of the material that is scraped off.
  • the scrapers are arranged as shown, and the material to be mixed is fed in at one end of the cylinder, the cylinder being rotated to effect the mixing operation, and the mixed material is discharged at the opposite end.
  • a scraper for mixing-drums comprising a cylindrical hub having an axial bearing therein to receive a shaft, a blade radiating from the hub, the inner end of the blade lying parallel with the axis of the hub and the edge of the outer end of the blade lying at an inclination to the axis, the inclination decreasing gradually from the outer end toward the inner end of the blade, an arm radiating from the hub at an angle to the blade, and a counterbalancing-weight mounted adjustably upon the arm.
  • a scraper for mixing-drums comprising a cylindrical hub having an axial bearing therein to receive a shaft, a blade radiating from the hub, the inner end of the blade lying parallel with the axis of the hub and the outer end of the blade being curved upwardly and having a straight edge lying at an angle to the axis of the hub, the inclination of the blade gradually decreasing from the outer end toward the inner end, and a counterbalaneing-arm radiating from the hub at an anto gle to the blade.

Description

No. 675,798. Patented lune 4, I90I.
- C. F. SLIGER.
SCBAPEB FUR MIXING MACHINES.
(Application filed July 93, 1900-) (No Model.)
MI I I 0 mm uqam new" co, monnwna. msmvanrgn. u. c
CHARLES F. SLIGER, OF SAN ANTONIO, TEXAS, ASSIGNOR OF ONE-HALF TO CHARLES F. DUBOSE, OF SAME PLACE.
SCRAPER FOR MIXING-MACHINES.
SPECIFICATION forming part of Letters Patent No. 675,798, dated June 4, 1901.
Application filed July 23,1900.
To all whom t may concern.
Be it known that I, CHARLES F. SLIGER, a citizen of the United States, residing at San Antonio, in the county of Bexar and State of Texas, have invented a new and useful Scraper for Mixing-Machines, of which the following is a specification.
This invention relates to mixing-machines in general, such as are employed in the mixing of asphalt and similar materials, and it has specific reference to a scraper attachment for the mixing-cylinder wherewith the material that may cling to the inner surface of the cylinder may be scraped off and the mixing operation may be thoroughly performed.
In the drawings forming a portion of this specification, and in which like numerals of reference indicate similar parts in the several views thereof, Figure l is a central longitudinal section of a mixing-cylinder having a series of scrapers disposed therein and constructed in accordance with the present invention. Fig. 2 is a transverse section of Fig. 1 and showing a scraper in side elevation. Fig. 3 is a perspective view of the scraper.
Referring now to the drawings, 5 represents the cylinder of an asphalt mixing and heating machine, supported upon bearingrollers 6 and 7, which are in turn suitably journaled, as shown. This cylinder has open ends, and in practice the asphalt to be mixed is fed in at one end of the cylinder and is discharged at the opposite end, the cylinder being rotated during the operation and heated. During this operation of mixing and heating there is a tendency for the asphalt to cling to the inner surface of the cylinder, and in order to dislodge this material there is provided a series of independently-pivoted scrapers. These scrapers are mounted upon a shaft 10, which is supported in uprights 11 at the ends of the cylinder, said shaft being passed longitudinally through the cylinder, adjacent the upper side thereof and parallel with the axis of the cylinder. Each of the scrapers, as shown in Fig. 3 of the drawings, consists of a hub portion 12, having a radially-extending blade 13, the base of which is thickened and lies parallel with the axis of the hub, which is cylindrical, said blade being twisted so that its outer edge 15 lies at Serial No. 24,628. (No model.)
an angle to the axis of the hub, one side of the blade being concaved and the other side convex. The outer end of the blade is curved upwardly and its cutting or scraping edge is straight, as shown, and projects forwardly, so that it may enter or wedge under the clinging material.
In practice the scraping-blades lie in a common diagonal plane, and to hold them yieldably in these positions each blade is provided with a counterbalance consisting of a weight 18, slidably mounted upon an arm 19, extending radially from the hub 12 and at an obtuse angle to the extension of the blade, the weight being held in place upon the arm by a set-screw 20, whereby it may be shifted to vary its counterbalancing effect and correspondingly vary the stability of the scraper.
The scraper-blade is increased in width at its outer edge to project beyond the ends of the hub, whereby when a number of blades are disposed with their scraping edges parallel and the hubs in contact successively, as shown in Fig. 1 of the drawings, the edge of one blade will overlap the edge of the succeeding blade and the inner face of the cylinder or drum will be scraped continuously. This construction of the blades also affords passages between the blades for passage of the material that is scraped off.
In operation the scrapers are arranged as shown, and the material to be mixed is fed in at one end of the cylinder, the cylinder being rotated to effect the mixing operation, and the mixed material is discharged at the opposite end.
\Vhat is claimed is- 1. A scraper for mixing-drums comprising a cylindrical hub having an axial bearing therein to receive a shaft, a blade radiating from the hub, the inner end of the blade lying parallel with the axis of the hub and the edge of the outer end of the blade lying at an inclination to the axis, the inclination decreasing gradually from the outer end toward the inner end of the blade, an arm radiating from the hub at an angle to the blade, and a counterbalancing-weight mounted adjustably upon the arm.
2. A scraper for mixing-drums comprising a cylindrical hub having an axial bearing therein to receive a shaft, a blade radiating from the hub, the inner end of the blade lying parallel with the axis of the hub and the outer end of the blade being curved upwardly and having a straight edge lying at an angle to the axis of the hub, the inclination of the blade gradually decreasing from the outer end toward the inner end, and a counterbalaneing-arm radiating from the hub at an anto gle to the blade.
In testimony that I claim the foregoing as my own I have hereto aflixed my signature in the presence of two witnesses.
CHARLES F. SLIGER.
Witnesses:
W W. REW, G. G. IIOWLAND.
US2462800A 1900-07-23 1900-07-23 Scraper for mixing-machines. Expired - Lifetime US675798A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US2462800A US675798A (en) 1900-07-23 1900-07-23 Scraper for mixing-machines.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2462800A US675798A (en) 1900-07-23 1900-07-23 Scraper for mixing-machines.

Publications (1)

Publication Number Publication Date
US675798A true US675798A (en) 1901-06-04

Family

ID=2744345

Family Applications (1)

Application Number Title Priority Date Filing Date
US2462800A Expired - Lifetime US675798A (en) 1900-07-23 1900-07-23 Scraper for mixing-machines.

Country Status (1)

Country Link
US (1) US675798A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4964845A (en) * 1986-05-22 1990-10-23 National Research Development Corporation Minerals separator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4964845A (en) * 1986-05-22 1990-10-23 National Research Development Corporation Minerals separator

Similar Documents

Publication Publication Date Title
US675798A (en) Scraper for mixing-machines.
US3155330A (en) Cutting device for manure pumps
US1211566A (en) Grain or hay grinder.
US526044A (en) William merrill
US2261207A (en) Mixing apparatus
US200540A (en) Improvement in machines for preparing wood for making paper-pulp
US293542A (en) Mincing-knife
US352536A (en) Good ale
US230471A (en) Thieds of his eight to newton aldeioh and charles enos
US1483551A (en) Adjustable blade for mixing machines
US1018629A (en) Mixer.
US626613A (en) Fruit-cleaner
US1855832A (en) Cane knife
US87573A (en) Improvement in machine for grating- fodder
US812849A (en) Mixing-machine.
US201083A (en) Improvement in the manufacture of paper-pulp from wood
US204837A (en) Improvement in oatmeal-machines
US752882A (en) Centrifugal grain-drier
US994978A (en) Cement-mixer.
US1287571A (en) Apparatus for treatment of paper-pulp and other fibrous materials.
US254812A (en) Machine for splitting grain
US206971A (en) Improvement in machines for separating the fibers of wood for paper-pulp
US4098182A (en) Press for removing liquids from amorphous material
US435636A (en) Cotton-seed huller
US885874A (en) Wood-shaving machine.