US3713650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stacking of sheets
Assignee: Pilkington Group Ltd
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Filing: 1971-02-19
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Granted: 1973-01-30
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Expires: 1991-02-19
Abstract
Abstract Apparatus for stacking a succession of sheets generally vertically on a support surface, comprises a sheet carrying face which is presented generally horizontally beneath a sheet to be stacked, and then moved to a substantially vertical position with the sheet. Means are provided to engage the lower edge of the sheet and to carry the lower edge into a desired position on the support surface. The succession of sheets thereby form a stack of sheets, e.g. on a pallet.
Inventors
- 👤 J Hodgkinson
- 👤 R Morey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:12
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/38; B65H29/40; B65H31/00; B65H31/04; B65H2301/00; B65H2301/40; B65H2301/42; B65H2301/421; B65H2301/4214; B65H2301/42146; B65H2404/00; B65H2404/60; B65H2404/65; B65H2404/653; B65H2404/658; B65H2404/6581
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
214 words
Stacking apparatus for stacking a succession of sheets generally vertically on a support surface, which apparatus comprises: rotary stacking means for receiving and transporting a sheet, said rotary stacking means being rotatably mounted and having at least one sheet carrying face arranged to move around an axis of rotation from a generally horizontal loading position above the axis of rotation whereat a sheet may be loaded onto the stacking device from a conveyor to a substantially vertical unloading position, said rotary stacking means further including means operatable to maintain a sheet on said sheet carrying face during inclination of said sheet carrying face, and said rotary stacking means being returnable to the loading position by continued rotation in the same direction, drive means for repeatedly rotating said rotary stacking means in a predetermined direction around the axis of rotation, support means lower than the axis of rotation adjacent the unloading position of the sheet carrying face, for receiving a sheet in a substantially vertical position, and transfer means adjacent a lower edge of the sheet carrying face when in the unloading position, for engaging a lower edge of a sheet as it is unloaded and for carrying said lower edge away from the sheet carrying face into a desired position on the support surface.
Claim 2
Dependent Claim
214 words
Stacking apparatus for stacking a succession of sheets generally vertically on a support surface, which apparatus comprises: rotary stacking means for receiving and transporting a sheet, said rotary stacking means being rotatably mounted and having at least one sheet carrying face arranged to move around an axis of rotation from a generally horizontal loading position above the axis of rotation whereat a sheet may be loaded onto the stacking device from a conveyor to a substantially vertical unloading position, said rotary stacking means further including means operatable to maintain a sheet on said sheet carrying face during inclination of said sheet carrying face, and said rotary stacking means being returnable to the loading position by continued rotation in the same direction, drive means for repeatedly rotating said rotary stacking means in a predetermined direction around the axis of rotation, support means lower than the axis of rotation adjacent the unloading position of the sheet carrying face, for receiving a sheet in a substantially vertical position, and transfer means adjacent a lower edge of the sheet carrying face when in the unloading position, for engaging a lower edge of a sheet as it is unloaded and for carrying said lower edge away from the sheet carrying face into a desired position on the support surface.
Claim 3
Dependent Claim
214 words
Stacking apparatus for stacking a succession of sheets generally vertically on a support surface, which apparatus comprises: rotary stacking means for receiving and transporting a sheet, said rotary stacking means being rotatably mounted and having at least one sheet carrying face arranged to move around an axis of rotation from a generally horizontal loading position above the axis of rotation whereat a sheet may be loaded onto the stacking device from a conveyor to a substantially vertical unloading position, said rotary stacking means further including means operatable to maintain a sheet on said sheet carrying face during inclination of said sheet carrying face, and said rotary stacking means being returnable to the loading position by continued rotation in the same direction, drive means for repeatedly rotating said rotary stacking means in a predetermined direction around the axis of rotation, support means lower than the axis of rotation adjacent the unloading position of the sheet carrying face, for receiving a sheet in a substantially vertical position, and transfer means adjacent a lower edge of the sheet carrying face when in the unloading position, for engaging a lower edge of a sheet as it is unloaded and for carrying said lower edge away from the sheet carrying face into a desired position on the support surface.
Claim 4
Dependent Claim
214 words
Stacking apparatus for stacking a succession of sheets generally vertically on a support surface, which apparatus comprises: rotary stacking means for receiving and transporting a sheet, said rotary stacking means being rotatably mounted and having at least one sheet carrying face arranged to move around an axis of rotation from a generally horizontal loading position above the axis of rotation whereat a sheet may be loaded onto the stacking device from a conveyor to a substantially vertical unloading position, said rotary stacking means further including means operatable to maintain a sheet on said sheet carrying face during inclination of said sheet carrying face, and said rotary stacking means being returnable to the loading position by continued rotation in the same direction, drive means for repeatedly rotating said rotary stacking means in a predetermined direction around the axis of rotation, support means lower than the axis of rotation adjacent the unloading position of the sheet carrying face, for receiving a sheet in a substantially vertical position, and transfer means adjacent a lower edge of the sheet carrying face when in the unloading position, for engaging a lower edge of a sheet as it is unloaded and for carrying said lower edge away from the sheet carrying face into a desired position on the support surface.
Claim 5
Dependent Claim
45 words
Apparatus according to claim 1, wherein said transfer means comprise roller means disposed adjacent said desired position on the support surface, means being provided for driving said roller means in the direction in which the said lower edge of the sheet is to be carried.
Claim 6
Dependent Claim
51 words
Apparatus according to claim 1, wherein said sheet carrying face comprises a rolling surface and said further included means includes stop means for engaging said lower edge of the sheet and for limiting relative sliding movement between the sheet and the sheet carrying face during inclination of the sheet carrying face.
Claim 7
Dependent Claim
40 words
Apparatus according to claim 3, wherein said sheet carrying face comprises rollers each having an associated anti-reverse device such that the rollers can rotate only in the direction for movement of the sheet to be stacked towards said stop means.
Claim 8
Dependent Claim
46 words
Apparatus according to claim 1, including means for halting rotation of the stacking device when said sheet carrying face is in the unloading position, said halting means being releasable to allow movement of the sheet carrying face into its horizontal position for reception of another sheet.
Claim 9
Dependent Claim
41 words
Apparatus according to claim 1, including means for moving said support means away from said sheet carrying face, said means being adapted to effect said movement of the support means in steps equal to the thickness of the sheets being stacked.
Claim 10
Dependent Claim
69 words
Apparatus according to claim 1, for stacking a succession of sheets generally vertically on the base of a pallet, the apparatus including a trolley for location of the pallet for reciprocal movement towards and away from said sheet carrying face along tracks disposed below floor level, and means for moving said trolley away from said sheet carrying face in steps equal to the thickness of the sheets being stacked.
Claim 11
Dependent Claim
57 words
Apparatus according to claim 1, including a conveyor for delivering a succession of sheets to at least one off-loading station, and at least one said rotary stacking device disposed at said off-loading station for receiving each sheet in turn delivered thereto and for stacking said sheets in a generally vertical, closely-assembled order on a respective support surface.
Claim 12
Dependent Claim
43 words
Stacking apparatus according to claim 1, wherein the rotary stacking means provides a plurality of sheet carrying faces spaced around the axis of rotation, to pass the sheet carrying faces in succession through the loading and unloading positions as the rotary means rotates.
Claim 13
Dependent Claim
30 words
Apparatus according to claim 9, in which the rotary stacking device has four said sheet carrying faces for inclining and transferring successive sheets into adjacent positions on the support surface.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |