US749179A - Apparatus for grinding or polishing metals - Google Patents
Apparatus for grinding or polishing metals Download PDFInfo
- Publication number
- US749179A US749179A US749179DA US749179A US 749179 A US749179 A US 749179A US 749179D A US749179D A US 749179DA US 749179 A US749179 A US 749179A
- Authority
- US
- United States
- Prior art keywords
- valve
- sand
- cradle
- nozzle
- grinding
- 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
Links
- 239000002184 metal Substances 0.000 title description 8
- 229910052751 metal Inorganic materials 0.000 title description 8
- 238000005498 polishing Methods 0.000 title description 8
- 150000002739 metals Chemical class 0.000 title description 6
- 239000004576 sand Substances 0.000 description 28
- 240000007419 Hura crepitans Species 0.000 description 12
- 239000002245 particle Substances 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000010276 construction Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000000428 dust Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/08—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces
- B24C3/10—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces for treating external surfaces
- B24C3/14—Apparatus using impellers
Definitions
- ymfi n1 mum: versus co. wno'rouwb, wnsmuurcm n'. 2.;
- My invention relates to means for controlling the delivery of sand employed in the operation of grinding or polishing.
- the purpose of my present invention is to provide a nozzle and its valve so constructed and arranged that, the operation of the valve may be controlled by means of a cradle on which the article to be ground or polished is supported, and to provide in connection with the cradle means for extracting from the sand issuing from the nozzle slivers of iron or other metallic particles, which if not removed would impair the effectiveness of the sand-blast.
- Figure 1 is an elevation of an apparatus embodying my invention.
- Fig. 2 is a horizontal section on the line 2 2 of Fig. 1. through the cradle on the line 3 3 of Fig. 2.
- Fig. 4 is a vertical section through the cradle on the line 4: 4: of Fig. 2, and
- Fig. 5 is an enlarged detached side elevation and sectional view of the valve and appurtenances.
- the air-reservoir A of sheet metal, is adapted to contain air under pressure.
- B of any suitable material and of any suitable form, is placed in convenient position relative to the air-reservoir.
- a hood C is suitably supported above the sand-box and is provided with outlet-pipes adapted to carry off the dust raised during the operation of the apparatus.
- a pipe A is connected with'the air-reservoir by suitable connection A
- a pipe B is connected with the sand-box by a suitable connection B
- the upper ends of. the pipes A and B are connected with a suitable mixingvalve D.
- Fig. 3 is avertical section late thev cradle.
- a sand-box Air under pressure passes through the pipe A into the valve D and produces a vacuum in the pipe B, which causes sand to rise through the pipe B into the valve, and the sand and air are mixed within the valve and are thence ejected through the nozzle, as hereinafter de-. scribed.
- the nozzle E is detachably connected with the nozzle-valve F.
- a cylindrical plug f is slidable in a transverse way f.
- the ends of the way f are covered by caps f and the stem f projects through one of the caps.
- the lever F is fulcrumed on a lug f, and the upper end of the lever is flexibly connected with the stem f Near the lower end of the lever is a wheel F arranged to turn on a stud or pin f
- a spring f is secured to the valve and the free end of the spring engages with the lower part of the lever F.
- a cradle G is suspended above the sand-box 'by a flexible support g, so that the cradle may oscillate freely.
- Handles g serve to manipu-
- the bottom of the cradle is slotted or perforated, and beneath the slotted bottom is a box adapted to contain sand.
- hood g prevents sand from being blown out of the front end of cradle, and side boards g prevent sand from being blown sidewise from the cradle.
- the magnets when loaded with iron particles may be easily removed, cleansed, and replaced in the cradle.
- the article to be operated upon is placed on the slatted bottom of the cradle in such position that when the cradle is raised the face of the wheel F will engage with the surface to be operated upon and the quantity of sand used in the operation may be effectively controlled by raising or lowering the cradle, so as to open or close the valve to such extent as may be most advantageous for the operation in hand.
Description
No. 749,179. v PATENTED JAN. 12, 1904.
L. C. PORWOOD.
APPARATUS FOR GRINDING OR POLISHING METALS. APPLIUATION FILED DBO. 1, 1902.
N0 MODEL.
lgfiuaed. I a me zzr 7 ZoRIN GZZRWO on.
ymfi n1: mum: versus co. wno'rouwb, wnsmuurcm n'. 2.;
Patented January 12, 1904.
PATENT OFFICE.
LORIN C. FORVVOOD, OF DECATUR, ILLINOIS.
APPARATUS FOR GRINDING OR POLISHING METALS.
SPECIFICATION forming part of Letters Patent No. 749,179, dated January 1-2, 1904.
Application filer. D ber 1,1902. Serial No. 133,512. (No model.)
To all whom it may concern.-
Be it known-that I, LORIN C. FoRWooD, a citizen of the United States, residing at Decatur, in the county of Macon and State of Illinois, have invented certain new and useful Improvements in Apparatus for Grinding or Polishing Metals by Means of a Sand-Blast, of which the following is a specification.
My invention relates to means for controlling the delivery of sand employed in the operation of grinding or polishing.
The purpose of my present invention is to provide a nozzle and its valve so constructed and arranged that, the operation of the valve may be controlled by means of a cradle on which the article to be ground or polished is supported, and to provide in connection with the cradle means for extracting from the sand issuing from the nozzle slivers of iron or other metallic particles, which if not removed would impair the effectiveness of the sand-blast.
My invention consists in the novel features of construction and combinations of parts shown in the annexed drawings, to which reference is hereby made, and hereinafter particularly described and finally recited in the claims.
Referring to the drawings, Figure 1 is an elevation of an apparatus embodying my invention. Fig. 2 is a horizontal section on the line 2 2 of Fig. 1. through the cradle on the line 3 3 of Fig. 2. Fig. 4 is a vertical section through the cradle on the line 4: 4: of Fig. 2, and Fig. 5 is an enlarged detached side elevation and sectional view of the valve and appurtenances.
The air-reservoir A, of sheet metal, is adapted to contain air under pressure. B, of any suitable material and of any suitable form, is placed in convenient position relative to the air-reservoir. A hood C is suitably supported above the sand-box and is provided with outlet-pipes adapted to carry off the dust raised during the operation of the apparatus. A pipe A is connected with'the air-reservoir by suitable connection A A pipe B is connected with the sand-box by a suitable connection B The upper ends of. the pipes A and B are connected with a suitable mixingvalve D.
Fig. 3 is avertical section late thev cradle.
A sand-box Air under pressure passes through the pipe A into the valve D and produces a vacuum in the pipe B, which causes sand to rise through the pipe B into the valve, and the sand and air are mixed within the valve and are thence ejected through the nozzle, as hereinafter de-. scribed.
The nozzle E is detachably connected with the nozzle-valve F. v
A cylindrical plug f is slidable in a transverse way f. The ends of the way f are covered by caps f and the stem f projects through one of the caps.
The lever F is fulcrumed on a lug f, and the upper end of the lever is flexibly connected with the stem f Near the lower end of the lever is a wheel F arranged to turn on a stud or pin f A spring f is secured to the valve and the free end of the spring engages with the lower part of the lever F. When the lower arm of the lever is pressed toward the nozzle, the spring is compressed and the upper arm of the lever slides the plug f outward, so as to open the valve. When the valve is open, the sand driven by the compressed air with which it is mixed in themixing-valve is rapidly and violently expelled through the nozzle against the article to be operated upon. When the pressure against the lower arm of the lever is removed',the spring reacts to throw the lever and cause it to slide the plug inward, so as to close the valve.
7 A cradle G is suspended above the sand-box 'by a flexible support g, so that the cradle may oscillate freely. Handles g serve to manipu- The bottom of the cradle is slotted or perforated, and beneath the slotted bottom is a box adapted to contain sand. An
upwardly-curved hood g prevents sand from being blown out of the front end of cradle, and side boards g prevent sand from being blown sidewise from the cradle. A removable rod gextends transversely across the cradle under the hood g and a series of magnets g are mounted thereon. The magnets are in such position on thecradle that the mixed air and sand impinging on the article operated upon will be deflected up against the magnets and the metallic particles in the sand will be attracted by and will adhere to the magnets, thereby extracting from the sand metallic particles which if not removed would interfere with the successful use of the sandblast for the purpose set forth.
By reason of the construction shown and described the magnets when loaded with iron particles may be easily removed, cleansed, and replaced in the cradle.
In practical use of the apparatus the article to be operated upon is placed on the slatted bottom of the cradle in such position that when the cradle is raised the face of the wheel F will engage with the surface to be operated upon and the quantity of sand used in the operation may be effectively controlled by raising or lowering the cradle, so as to open or close the valve to such extent as may be most advantageous for the operation in hand.
Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is
1. In an apparatus of the class described,the combination of an air-reservoir, a sand-box, a mixing-valve communicating with said airreservoir and sand-box, a nozzle-valve communicating with said mixing-valve and provided with a valve-operating device, and a cradle mounted to engage with the valve-operating device of the nozzle-valve, as set forth.
2. In an apparatus of the class described the combination of a cradle, a nozzle-valve operative by means of said cradle, and means for supplying air under pressure, and sand, to said nozzle-valve, as set forth.
. 3. In an apparatus of the class described,the combination of a cradle, a nozzle-valve operative by said cradle, magnets mounted in said cradle in position to attract metallic particles deflected from the article operated upon and means for supplying to said nozzle-valve sand driven by compressed air, as set forth.
In witness whereof I have hereunto subscribed my name, at Decatur, Illinois, this 25th day of November, 1902.
LORIN C. FORWOOD.
Witnesses:
J. A. Known, H. T. KEOWN.
Publications (1)
Publication Number | Publication Date |
---|---|
US749179A true US749179A (en) | 1904-01-12 |
Family
ID=2817674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US749179D Expired - Lifetime US749179A (en) | Apparatus for grinding or polishing metals |
Country Status (1)
Country | Link |
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US (1) | US749179A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2999341A (en) * | 1956-10-22 | 1961-09-12 | Libbey Owens Ford Glass Co | Cleaning glass supporting tables |
-
0
- US US749179D patent/US749179A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2999341A (en) * | 1956-10-22 | 1961-09-12 | Libbey Owens Ford Glass Co | Cleaning glass supporting tables |
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