Patent US3618051A successfully refreshed from Google Patents.
US3873058A
Expired / Lapsed
US
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Moulding apparatus
Assignee: Stelmo Ltd
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Filing: 1973-03-27
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Granted: 1975-03-25
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Expires: 1993-03-27
Abstract
Abstract The specification discloses moulding apparatus comprising a frame, a plurality of upstanding mould wall members mounted on the frame, the wall members all being movable between a moulding position in which the wall members are positioned parallel to one another and to an end wall on the frame, with spaces between them to form mould cavities between adjacent wall members and being movable singly from the moulding position in a direction away from the end wall so as to open the mould cavities to allow removal of a moulded product formed in each cavity and at least two hydraulic ram devices, which, in the moulding position, are mounted on the frame one being arranged to act at or near the top, and the other at or near the bottom of the wall member furthest from the end member to urge the wall members together in the closed position, the hydraulic ram devices being readily disengageable from the frame to allow the wall members to move away from the moulding position, wherein a supporting member on which each wall member is movably mounted for movement towards and away from a moulding position extends along the upper part of the moulding apparatus, and there is provided a carriage mounted for movement along the length of the supporting member, the carriage having means for selectively lifting a mould wall member, and power drive means for the carriage whereby a mould wall member may be moved towards and away from the moulding position.
Inventors
- 👤 Robin Douglas Jeffery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:31
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/24; B28B7/241; B28B7/243
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
365 words
Moulding apparatus comprising a. a frame having a base portion and an end wall upstanding from the base portion, b. a plurality of upstanding wall members parallel to the end wall and in face to face relationship therewith, c. two support members running along an upper part of the apparatus, one running alonG each side of the apparatus respectively, said wall members being positioned so that portions thereof rest on said support members and the lower edges thereof rest on said base portion, d. a soffit between each adjacent pair of wall members and fixed along the lower edge of one of said pair of wall members to define with the wall members a moulding cavity between the wall members when the wall members are in a moulding position with the lower edges of the wall members and the soffits supported on said base portion, e. at least two hydraulic ram devices, which in the moulding position, are mounted on the frame, one being arranged to act at or near the top and the other at or near the bottom of the wall member furthest from the end wall to urge the wall members and soffits together to form the moulding cavities, the hydraulic ram devices being readily disengageable from the frame to allow the wall members to be moved from the moulding position, f. a separate carriage mounted for movement along the length of each of said two support members, g. means on each carriage for selectively lifting a mould wall member from its position resting on said support members and said base portion, and h. power drive means for moving each carriage along its support member whereby a mould wall member can be moved towards or away from the moulding position, said power drive means including a chain associated with each support member which chains are linked by said carriages, each chain passing around sprockets located at or adjacent each end of the support member with which it is associated, and wherein the two sprockets at or adjacent at least one of the ends of the two support members respectively are interconnected by shafting, there being drive means arranged to rotate the shafting.
Claim 2
Dependent Claim
365 words
Moulding apparatus comprising a. a frame having a base portion and an end wall upstanding from the base portion, b. a plurality of upstanding wall members parallel to the end wall and in face to face relationship therewith, c. two support members running along an upper part of the apparatus, one running alonG each side of the apparatus respectively, said wall members being positioned so that portions thereof rest on said support members and the lower edges thereof rest on said base portion, d. a soffit between each adjacent pair of wall members and fixed along the lower edge of one of said pair of wall members to define with the wall members a moulding cavity between the wall members when the wall members are in a moulding position with the lower edges of the wall members and the soffits supported on said base portion, e. at least two hydraulic ram devices, which in the moulding position, are mounted on the frame, one being arranged to act at or near the top and the other at or near the bottom of the wall member furthest from the end wall to urge the wall members and soffits together to form the moulding cavities, the hydraulic ram devices being readily disengageable from the frame to allow the wall members to be moved from the moulding position, f. a separate carriage mounted for movement along the length of each of said two support members, g. means on each carriage for selectively lifting a mould wall member from its position resting on said support members and said base portion, and h. power drive means for moving each carriage along its support member whereby a mould wall member can be moved towards or away from the moulding position, said power drive means including a chain associated with each support member which chains are linked by said carriages, each chain passing around sprockets located at or adjacent each end of the support member with which it is associated, and wherein the two sprockets at or adjacent at least one of the ends of the two support members respectively are interconnected by shafting, there being drive means arranged to rotate the shafting.
Claim 3
Dependent Claim
27 words
Moulding apparatus as claimed in claim 1 wherein the drive means is drivingly connected to the shafting to substantially the mid-point of the shafting between the sprockets.
Claim 4
Dependent Claim
37 words
Moulding apparatus as claimed in claim 1 wherein each of said support members comprises a pair of channel members connected together with the channels facing one another and the base webs disposed in a generally vertical plane.
Claim 5
Dependent Claim
41 words
Moulding apparatus as claimed in claim 3 wherein each carriage has a pair of rollers rotatably mounted thereon, each roller being shaped for engagement with the lowermost side flange of each of the two channel members of the associated supporting member.
Claim 6
Dependent Claim
33 words
Moulding apparatus as claimed in claim 1 wherein each of said lifting means comprises a hydraulic jack mounted on its respective carriage, the jack being engageable with a part of said wall members.
Claim 7
Dependent Claim
360 words
Moulding apparatus comprising a. a frame having a base portion and an end wall upstanding from the base portion, b. a plurality of upstanding wall members parallel to the end wall and in face to face relationship therewith, each wall member having a laterally protruding edge portion, c. at least a support member running along an upper part of the apparatus which member is perpendicular to the wall members and on which member portions of the wall members rest with their lower edges resting on the said base portion, d. a soffit between each adjacent pair of wall members and fixed along the lower edge of one of said pair of wall members to define with the wall members a moulding cavity between the wall members when the wall members are in a moulding position with the lower edges of the wall members and the soffits supported on said base portion, e. at least two hydraulic ram devices, which is the moulding position, are mounted on the frame, one being arranged to act at or near the top and the other at or near the bottom of the wall member furthest from the end wall to urge the wall members and soffits together to form the moulding cavities, the hydraulic ram devices being readily disengageable from the frame to allow the wall members to be moved from the moulding position, F. a single carriage being mounted for movement along the length of each support member, g. means on each carriage for lifting any selected one of said mould wall members from its position resting on said at least one support member and said base portion when said carriage is brought to a position adjacent said selected mould wall member, which means includes a vertically movable member for being raised to engage a laterally protruding edge portion of said selected mould wall member, h. power drive means for moving said carriage along said support member to said position adjacent a selected wall member and for moving said carriage along said support member after said selected wall member has been lifted to move said member towards or away from the moulding position.
Claim 8
Dependent Claim
360 words
Moulding apparatus comprising a. a frame having a base portion and an end wall upstanding from the base portion, b. a plurality of upstanding wall members parallel to the end wall and in face to face relationship therewith, each wall member having a laterally protruding edge portion, c. at least a support member running along an upper part of the apparatus which member is perpendicular to the wall members and on which member portions of the wall members rest with their lower edges resting on the said base portion, d. a soffit between each adjacent pair of wall members and fixed along the lower edge of one of said pair of wall members to define with the wall members a moulding cavity between the wall members when the wall members are in a moulding position with the lower edges of the wall members and the soffits supported on said base portion, e. at least two hydraulic ram devices, which is the moulding position, are mounted on the frame, one being arranged to act at or near the top and the other at or near the bottom of the wall member furthest from the end wall to urge the wall members and soffits together to form the moulding cavities, the hydraulic ram devices being readily disengageable from the frame to allow the wall members to be moved from the moulding position, F. a single carriage being mounted for movement along the length of each support member, g. means on each carriage for lifting any selected one of said mould wall members from its position resting on said at least one support member and said base portion when said carriage is brought to a position adjacent said selected mould wall member, which means includes a vertically movable member for being raised to engage a laterally protruding edge portion of said selected mould wall member, h. power drive means for moving said carriage along said support member to said position adjacent a selected wall member and for moving said carriage along said support member after said selected wall member has been lifted to move said member towards or away from the moulding position.
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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) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |