US296880A - James scull - Google Patents
James scull Download PDFInfo
- Publication number
- US296880A US296880A US296880DA US296880A US 296880 A US296880 A US 296880A US 296880D A US296880D A US 296880DA US 296880 A US296880 A US 296880A
- Authority
- US
- United States
- Prior art keywords
- sand
- scull
- james
- tube
- mandrel
- 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
- 239000004576 sand Substances 0.000 description 18
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 240000007419 Hura crepitans Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001105 regulatory Effects 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
- B22C15/23—Compacting by gas pressure or vacuum
- B22C15/24—Compacting by gas pressure or vacuum involving blowing devices in which the mould material is supplied in the form of loose particles
Definitions
- Figure 1 is a sectional elevation of ainachine by which the cores are manufactured.
- Fig. 2 is a plan view, the hopper removed.
- the solid or hollow and perforated mandrel F turns in suitable bearings above a sand-box, J, and is revolved by means of a handle, a, opposite the end of a flat tube, E, equal in width to the length of the mandrel, and extending from a wind-box, G, into which a blast of air is forced through a tube, L, by means of the fan M or other suitable blowing apparatus.
- ahop- 0 per, 1) which communicates with the tube through a narrow opening, an, at the bottom, regulated by a slide or valve, n, and above the hopper revolves a riddle, G, into which the green sand is put, and through which it is 5 sifted into the hopper.
- the sand falls from the hopper in a regular thin stream, and as it enters the tube E is struck by the rapid current of air forced forward by the blower, and is carried with greatforce against the sides of o the mandrel, and densely packed thereon as the same is revolved, a knife, A, trimming down excrescences until the core is of the proper size.
- riddle G prevents the introduction into the tube E of large pieces which might obstruct the tube and interfere with the .formation of the core, and also separates the particles, so that they are carried by the airblast without contact with the tube, and there by prevented from adhering thereto.
- the riddle is revolved from a shaft, (1, by means of a belt and pulleys, and a hammer, H, is vibrated to strike the riddle at regular intervals, so as to loosen the sand from the sieves, preventing the latter from becoming clogged
- a'slide, p which may be moved to a greater or less extent, to permit the escape of a portion of the air, and thereby reduce the pressure in the box.
- the air-passage may be supplied with sand by feeding'it in any 7 1 other manner than that described that will secure the introduction of small quantities across the whole width of the passage in a regular manner.
Description
(No Model.) J. SCULL.
MANUFACTURE o? GREEN SAND 0035s.
Patented Apr. 15; 1884.
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NITED STATES JAMES SOULL, OF JERSEY CITY, NEW JERSEY, ASSIGNOR OF OXE-HALF' TO SAMUEL VANCE, OF SAME PLACE.
MANUFACTURE OF GREEN-SAND CORES.
SPECIFICATION forming part of Letters Patent No. 296,880, dated April 15, 1884.
Application filed March 6, 1884. (No model.)
To all whom it may concern:
Be it known that I, J AMES SoULL, a citizen of the United States, residing at Jersey City, in the county of Hudson and State of New Jersey, have invented certain ,new and useful Improvements in the Manufacture of Green- Saud Cores, of which the following is aspecification.
My invent-ion has for its object to form solid,
hard, and durable sand cores for casting, and to edect the construction thereof with rapidity; and my invention consists in the mode described hereinafter of packing the green'sand with great force upon a revolving mandrel 1 so firmly as to secure a core of the desired hardness and durability.
lathe drawings, Figure 1 is a sectional elevation of ainachine by which the cores are manufactured. Fig. 2 is a plan view, the hopper removed.
The solid or hollow and perforated mandrel F turns in suitable bearings above a sand-box, J, and is revolved by means of a handle, a, opposite the end of a flat tube, E, equal in width to the length of the mandrel, and extending from a wind-box, G, into which a blast of air is forced through a tube, L, by means of the fan M or other suitable blowing apparatus. Above the tube or wind-box is ahop- 0 per, 1), which communicates with the tube through a narrow opening, an, at the bottom, regulated by a slide or valve, n, and above the hopper revolves a riddle, G, into which the green sand is put, and through which it is 5 sifted into the hopper. The sand falls from the hopper in a regular thin stream, and as it enters the tube E is struck by the rapid current of air forced forward by the blower, and is carried with greatforce against the sides of o the mandrel, and densely packed thereon as the same is revolved, a knife, A, trimming down excrescences until the core is of the proper size.
' I am aware that cores have been formed by I 5 dropping the sand upon a revolving mandrel;
but this means of projectingthe sand does not pack it upon the mandrel with sufficient density to form a core as hard and durable as is required for many purposes; but an air-blast projects the sand with such force upon the 0 mandrel as to form a hard solid coating, better capable of withstanding the pressure of the molten metal than a core built up by hand in the usual manner.
The use of the riddle G prevents the introduction into the tube E of large pieces which might obstruct the tube and interfere with the .formation of the core, and also separates the particles, so that they are carried by the airblast without contact with the tube, and there by prevented from adhering thereto. The riddle is revolved from a shaft, (1, by means of a belt and pulleys, and a hammer, H, is vibrated to strike the riddle at regular intervals, so as to loosen the sand from the sieves, preventing the latter from becoming clogged To regulate the force of the air-current the box 0 is provided with an opening covered by a'slide, p, which may be moved to a greater or less extent, to permit the escape of a portion of the air, and thereby reduce the pressure in the box.
It will be obvious that the air-passage may be supplied with sand by feeding'it in any 7 1 other manner than that described that will secure the introduction of small quantities across the whole width of the passage in a regular manner. v
I do nothere claim the devices herein set forth 8o scribing witnesses.
F MES SGULL.
W'itnesses:
WM. H. Vance, EDWARD BLANOHARD.
Publications (1)
Publication Number | Publication Date |
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US296880A true US296880A (en) | 1884-04-15 |
Family
ID=2366066
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US296880D Expired - Lifetime US296880A (en) | James scull |
Country Status (1)
Country | Link |
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US (1) | US296880A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080247896A1 (en) * | 2007-04-09 | 2008-10-09 | United Technologies Corporation | Fluoropolymer-containing films for use with positive-displacement fluid pumps |
-
0
- US US296880D patent/US296880A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080247896A1 (en) * | 2007-04-09 | 2008-10-09 | United Technologies Corporation | Fluoropolymer-containing films for use with positive-displacement fluid pumps |
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