US3595303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for casting molten substances
Assignee: Individual
•
Filing: 1968-11-14
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Granted: 1971-07-27
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Expires: 1988-11-14
Abstract
Abstract In apparatus for casting molten substances, a battery of molds is carried upon and around the exterior of a horizontal endless conveyor, each mold is so pivoted within a carriage connected to at least one endless chain incorporated in the conveyor, that it tends to tilt from the horizontal to the vertical, and means are provided whereby, when the apparatus is being operated, coolant liquid is sprayed continuously on to the external surface of the molds and, as each carriage is conveyed from a pouring station where a quantity of molten substance is charged into the mold pivoted therein, the mold is held in the horizontal until the substance is at least partially solidified, whereupon the mold is permitted to turn to the vertical to strip the cooled substance therefrom, and is returned to the horizontal before the carriage is returned to the pouring station.
Inventors
- 👤 Eric J Ponting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:22
CPC Classifications
A; A45; A45C; A45C15/00; A45C15/06; B; B22; B22D; B22D5/00; B22D5/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
142 words
Apparatus for casting a molten substance comprising an endless horizontal conveyor, a battery of carriages assembled to, externally of and around the conveyor; a boxlike holder mounted in each carriage and having an open top, a mold fixed within and closing the open top and depending into the interior of each holder, means adapted to charge a quantity of the molten substance into each of the molds in succession, means contained in each of the holders for spraying a liquid coolant on to the external surfaces of the charged mold depending into and closing the open top of the holder so as to cool the molten substance charged into this mold, at least one outlet in each of the holders for discharging the sprayed liquid from the latter, and means for stripping the cooled substance from each of the molds in succession.
Claim 2
Dependent Claim
142 words
Apparatus for casting a molten substance comprising an endless horizontal conveyor, a battery of carriages assembled to, externally of and around the conveyor; a boxlike holder mounted in each carriage and having an open top, a mold fixed within and closing the open top and depending into the interior of each holder, means adapted to charge a quantity of the molten substance into each of the molds in succession, means contained in each of the holders for spraying a liquid coolant on to the external surfaces of the charged mold depending into and closing the open top of the holder so as to cool the molten substance charged into this mold, at least one outlet in each of the holders for discharging the sprayed liquid from the latter, and means for stripping the cooled substance from each of the molds in succession.
Claim 3
Dependent Claim
87 words
Apparatus as claimed in claim 1, wherein each of the carriages has a vertical wall which is provided with a plurality of rollers each engaging and adapted to travel around a corresponding one of an equal number of fixed horizontal and superimposed endless tracks, and the several carriages are coupled to at least one endless chain incorporated in the conveyor and meshing with sprocket wheels fast upon two vertical rotatable shafts of which one is adapted to be rotated intermittently by a motor mounted in the apparatus.
Claim 4
Dependent Claim
94 words
Apparatus as claimed in claim 1 wherein each of the boxlike holders is pivoted in the corresponding carriage about a horizontal axis, the internal surfaces of the walls and floor of each holder being spaced respectively from the external surfaces of the walls and floor of the mold depending into and closing the open top or the respective holder, and an internal system of nozzles provided in the holder is connected to a supply of liquid coolant and is adapted to spray the liquid continuously over the whole of the said external mold surfaces.
Claim 5
Dependent Claim
118 words
Apparatus as claimed in claim 3 wherein each mold holder is so piVoted in the corresponding carriage that it tends to turn from the horizontal to the vertical, and means are provided whereby, as the carriage is conveyed from a pouring station where a quantity of the molten substance is charged into the mold in the holder, the latter is retained in the horizontal during a first predetermined fraction of the carriage travel, is then allowed to turn to the vertical to strip the cooled substance from the mold and to remain in the vertical during a second predetermined fraction of the carriage travel, and is returned to the horizontal before the carriage returns to the pouring station.
Claim 6
Dependent Claim
60 words
Apparatus as claimed in claim 3 wherein an endless ring main supported and surrounded by the carriages, is connected to the supply of liquid coolant at each of a plurality of spaced positions along its length, and to the nozzles within each of the mold holders at a corresponding one of a further plurality of spaced positions along its length.
Claim 7
Dependent Claim
99 words
Apparatus as claimed in claim 5 wherein each of the mold holders is provided with two liquid outlets of which one is uncontrolled and is adapted to discharge liquid from the holder into a well in the carriage in which the holder is pivoted only when the holder is horizontal, and of which the other is valve-controlled and closed when the holder is horizontal, the carriage being provided with means adapted to open the valve-controlled outlet when the holder turns to the vertical to enable liquid to be discharged from the holder through the valve-controlled outlet into the well.
Claim 8
Dependent Claim
33 words
Apparatus as claimed in claim 6 wherein the flow capacity of each of the liquid outlets is sufficient to prevent liquid from accumulating within the mold holder and submerging any of the nozzles.
Claim 9
Dependent Claim
51 words
Apparatus as claimed in claim 6 wherein an endless trough is provided below the carriages and the well of each carriage is provided with an outlet through which liquid received in the well from the outlets of the mold holder pivoted in the carriage, is adapted to flow into the trough.
Claim 10
Dependent Claim
130 words
Apparatus as claimed in claim 4 wherein an overhead rail is provided, the said rail comprising a lower horizontal portion which extends from the pouring station along one side of the conveyor and retains the mold holders horizontal during the first predetermined fraction of carriage travel, an upper horizontal portion which extends along the opposite side of the conveyor and is contacted by the mold holders during the initial part of the second predetermined fraction of carriage travel, and an inclined portion which is located adjacent to the pouring station, extends between the upper and lower portions and is contacted by the mold holders during the final part of the said second predetermined fraction of carriage travel to return the mold holders in succession from the vertical to the horizontal.
Claim 11
Dependent Claim
67 words
Apparatus as claimed in claim 2 wherein the carriages are pitched at equal distances apart lengthwise of the conveyor and the motor is so controlled that, at the termination of each of a succession of timed intervals of equal duration, it rotates the vertical shaft through an angular distance which drives the conveyor through a distance equal to the pitch at which the carriages are spaced apart.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |