Patent US3897927A successfully refreshed from Google Patents.
US3897927A
Expired / Lapsed
US
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Progressive molding apparatus with adjustable locating means
Assignee: D'ETUDES DE GENIE CIVIL ET DE TECHNIQUES INDUSTRIES Ste
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Filing: 1973-07-17
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Granted: 1975-08-05
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Expires: 1993-07-17
Abstract
Abstract A prefabrication installation is provided for moulded elements of concrete or other materials, each element having two opposite end faces, the elements being adapted to be disposed consecutively one after another and assembled together to form an assembly in which each element of the series engages by one of its end faces with the adjacent end face of an immediately adjacent element of the series. The installation comprises, for moulding an element of the series, a mould bounded at one end by that one of the end faces of the previous already moulded element against which the finished element will subsequently be engaged when the elements are positioned in a series or row. The mould also comprises formwork extending lengthwise of the element to be moulded between the two end faces thereof, such that the formwork bears on the previous already moulded element by way of at least one locating element co-operating with a complementarily shaped locating portion in the immediately previous element. Means are provided for predetermining the position of the locating portion in dependence upon the pattern of the required assembly and of the subsequent position therein of the element being moulded.
Inventors
- 👤 Jean M Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:50
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/0088
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
374 words
An installation for prefabricating in succession a series of consecutive sections of an elongated civil engineering work, each section consisting of a precast molded element of concrete-like material having two mutually opposite end-faces and a side surface extending between said two end-faces in a longitudinal direction from one to the other of said two end faces, said installation being designed for molding a new element of the series against an end-face of an immediately previous, alreadymolded element of the series, and comprising: a number of longitudinal main mold members at least some of which are interconnected together to form a unitary main longitudinal shuttering projectIng in longitudinal prolongation of said previous, already-molded element, said main shuttering having two longitudinally spaced end regions including a first end-region which is proximal with respect to said previous element and a second end-region which is distant with respect thereto; means interconnecting said main shuttering and said previous, already molded element for accurately positioning said main shuttering with respect to said previous element, said means including at least three mutually spaced, non-aligned abutment devices near said proximal end region of said main shuttering and each engaging with a respective complementarily shaped locating print formed in the side surface of said previous, already molded element; and at least three auxiliary mold members located at said distant end region of said main shuttering, each in respective longitudinal alignment with a corresponding one of the said abutment devices for molding in said new element of said series, locating prints for subsequent engagement with said abutment devices during the molding of the next element of the series; wherein the improvement comprises: at least one rectilinear, elongated guideway fixed in position with respect to said main longitudinal shuttering and extending in the longitudinal direction of said shuttering at said distant end region thereof in longitudinal alignment with one of the said abutment devices; a slide-block integral with said one of said auxiliary mold members which corresponds to said one abutment device and slidable along said longitudinal guideway whereby said one auxiliary mold member is adjustable along a longitudinal path with respect to said main longitudinal shuttering; and clamping means for locking said adjustable auxiliary mold member in any preselected position along said longitudinal path.
Claim 2
Dependent Claim
374 words
An installation for prefabricating in succession a series of consecutive sections of an elongated civil engineering work, each section consisting of a precast molded element of concrete-like material having two mutually opposite end-faces and a side surface extending between said two end-faces in a longitudinal direction from one to the other of said two end faces, said installation being designed for molding a new element of the series against an end-face of an immediately previous, alreadymolded element of the series, and comprising: a number of longitudinal main mold members at least some of which are interconnected together to form a unitary main longitudinal shuttering projectIng in longitudinal prolongation of said previous, already-molded element, said main shuttering having two longitudinally spaced end regions including a first end-region which is proximal with respect to said previous element and a second end-region which is distant with respect thereto; means interconnecting said main shuttering and said previous, already molded element for accurately positioning said main shuttering with respect to said previous element, said means including at least three mutually spaced, non-aligned abutment devices near said proximal end region of said main shuttering and each engaging with a respective complementarily shaped locating print formed in the side surface of said previous, already molded element; and at least three auxiliary mold members located at said distant end region of said main shuttering, each in respective longitudinal alignment with a corresponding one of the said abutment devices for molding in said new element of said series, locating prints for subsequent engagement with said abutment devices during the molding of the next element of the series; wherein the improvement comprises: at least one rectilinear, elongated guideway fixed in position with respect to said main longitudinal shuttering and extending in the longitudinal direction of said shuttering at said distant end region thereof in longitudinal alignment with one of the said abutment devices; a slide-block integral with said one of said auxiliary mold members which corresponds to said one abutment device and slidable along said longitudinal guideway whereby said one auxiliary mold member is adjustable along a longitudinal path with respect to said main longitudinal shuttering; and clamping means for locking said adjustable auxiliary mold member in any preselected position along said longitudinal path.
Claim 3
Dependent Claim
367 words
An installation for prefabricating in succession a series of consecutive sections of an enlongated civil engineering work, each section consisting of a precast molded element of concrete-like material having two mutually opposite end-faces and a side surface extending between said two end-faces in a longitudinal direction from one to the other of said two end faces, said installation being designed for molding a new element of the series against an end-face of an immediately previous, already-molded element of the series, and comprising: a number of longitudinal main mold members at least some of which are interconnected together to form a unitary main longitudinal shuttering projecting in longitudinal prolongation of said previous, already-molded element, said main shuttering having two longitudinally spaced end regions including a first end-region which is proximal with respect to said previous element and a second end-region which is distant with respect thereto; means interconnecting said main shuttering and said previous, already-molded element for accurately positioning said main shuttering with respect to said previous element, said means including at least three mutually spaced, non-aligned abutment devices at said proximal end-region of said main shuttering and each engaging with a respective complementarily shaped locating print formed in the side surface of said previous, already molded element; and at least three auxiliary mold members located at said distant end-region of said main shuttering, each in respective longitudinal alignment with a corresponding one of said abutment devices for molding in said new element of said series, locating prints for subsequent engagement with said abutment devices during the molding of the next element of the series; wherein the improvement comprises: at least one rectilinear elongated guideway fixed in position with respect to said main longitudinal shuttering and extending in the longitudinal direction of said shuttering near said proximal end region thereof in longitudinal alignment with one of said auxiliary mold members; a slide-block integral with one of said abutment deviCes which corresponds to said one auxiliary mold member, and slidable along said longitudinal guideway whereby said one abutment device is adjustable along a longitudinal path with respect to said main longitudinal shuttering; and clamping means for locking said adjustable abutment device in any preselected position along said longitudinal path.
Claim 4
Dependent Claim
367 words
An installation for prefabricating in succession a series of consecutive sections of an enlongated civil engineering work, each section consisting of a precast molded element of concrete-like material having two mutually opposite end-faces and a side surface extending between said two end-faces in a longitudinal direction from one to the other of said two end faces, said installation being designed for molding a new element of the series against an end-face of an immediately previous, already-molded element of the series, and comprising: a number of longitudinal main mold members at least some of which are interconnected together to form a unitary main longitudinal shuttering projecting in longitudinal prolongation of said previous, already-molded element, said main shuttering having two longitudinally spaced end regions including a first end-region which is proximal with respect to said previous element and a second end-region which is distant with respect thereto; means interconnecting said main shuttering and said previous, already-molded element for accurately positioning said main shuttering with respect to said previous element, said means including at least three mutually spaced, non-aligned abutment devices at said proximal end-region of said main shuttering and each engaging with a respective complementarily shaped locating print formed in the side surface of said previous, already molded element; and at least three auxiliary mold members located at said distant end-region of said main shuttering, each in respective longitudinal alignment with a corresponding one of said abutment devices for molding in said new element of said series, locating prints for subsequent engagement with said abutment devices during the molding of the next element of the series; wherein the improvement comprises: at least one rectilinear elongated guideway fixed in position with respect to said main longitudinal shuttering and extending in the longitudinal direction of said shuttering near said proximal end region thereof in longitudinal alignment with one of said auxiliary mold members; a slide-block integral with one of said abutment deviCes which corresponds to said one auxiliary mold member, and slidable along said longitudinal guideway whereby said one abutment device is adjustable along a longitudinal path with respect to said main longitudinal shuttering; and clamping means for locking said adjustable abutment device in any preselected position along said longitudinal path.
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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) | 1978-08-04 | 1979-02-03 | 1979-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-04 | 1983-02-03 | 1983-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-04 | 1987-02-03 | 1987-08-05 | $7700.00 | Window Closed / Lapsed |