← Back to Patent Explorer
US3726237A Expired / Lapsed US ⏱️ 0.0 years remaining

Work table for open-arm sewing machine

Assignee: ROBERTS Manufacturing Co
•
Filing: 1972-02-14
•
Granted: 1973-04-10
•
Expires: 1992-02-14
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An elongate table top supported by legs is adapted to receive an open-arm type of sewing machine. A second table top is mounted upon one end portion of the first or base table top at open-arm working level for raising to normal working level with respect to a received sewing machine and for lowering back down to open-arm working level. The second table top is longitudinally recessed to accommodate the open arm of the received sewing machine at both working levels.

Inventors

  • 👤 W Devey
  • 👤 K Roberts

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 16:01
CPC Classifications
D; D05; D05B; D05B75/00; D05B75/06

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 245 words
A work table for open-arm sewing machines, comprising an elongate table top having a flat continuous upper surface throughout the extent thereof and adapted to receive an open-arm sewing machine intermediate its length and extending longitudinally therewith, said elongate table top defining a sewing-machine receiving area intermediate its length and extending longitudinally therewith; means for supporting said table top in a sewing-machine-use position; a second table top mounted on the first table top and having a receiving slot confronting the sewing-machine-receiving area of the first table top and extending longitudinally inwardly of such second table top, from one end thereof, for accommodating the open arm of a sewing machine when the latter is positioned on the first table top; means mounting the second table top over an end portion of the first top, so that, in open-arm work position, said second table top rests upon and in superimposed relationship with said first table top, with its upper surfAce above the upper surface of said first table top and increasing the effective length of the first table top, such mounting means providing for the raising of the second table top relative to and above the first table top to approximately the same level at which the working surface of the open-arm of the received sewing machine will be positioned, said mounting means also providing for return of the second table top to its rest position upon the first table top in the said open-arm work position.
Claim 2
Dependent Claim 245 words
A work table for open-arm sewing machines, comprising an elongate table top having a flat continuous upper surface throughout the extent thereof and adapted to receive an open-arm sewing machine intermediate its length and extending longitudinally therewith, said elongate table top defining a sewing-machine receiving area intermediate its length and extending longitudinally therewith; means for supporting said table top in a sewing-machine-use position; a second table top mounted on the first table top and having a receiving slot confronting the sewing-machine-receiving area of the first table top and extending longitudinally inwardly of such second table top, from one end thereof, for accommodating the open arm of a sewing machine when the latter is positioned on the first table top; means mounting the second table top over an end portion of the first top, so that, in open-arm work position, said second table top rests upon and in superimposed relationship with said first table top, with its upper surfAce above the upper surface of said first table top and increasing the effective length of the first table top, such mounting means providing for the raising of the second table top relative to and above the first table top to approximately the same level at which the working surface of the open-arm of the received sewing machine will be positioned, said mounting means also providing for return of the second table top to its rest position upon the first table top in the said open-arm work position.
Claim 3
Dependent Claim 32 words
A work table in accordance with claim 1, wherein the mounting means provided for raising and lowering the second table comprises parallel motion mechanism connecting the second table top with the first.
Claim 4
Dependent Claim 26 words
A work table in accordance with claim 2, wherein means are provided for securing a sewing machine in its received position on the first table top.
Claim 5
Dependent Claim 39 words
A work table in accordance with claim 3, wherein the securing means comprises cushioning bumpers secured to the upper surface of the first table top at that end of the sewing-machine-receiving-area which is remote from the second table top.
Claim 6
Dependent Claim 24 words
A work table in accordance with claim 3, wherein cushioning bumper means is attached to the second table top within the open-arm-receiving slot thereof.
Claim 7
Dependent Claim 45 words
A work table in accordance with claim 2, wherein the underside of the second table top is recessed marginally of the slot for accommodating the base of the sewing machine when said second table top is in lowered position resting upon the first table top.
Claim 8
Dependent Claim 44 words
A work table in accordance with claim 1, wherein the width of the specified end portion of the underlying first table top approximates the width of the superimposed, second table top and is considerably wider than the open-arm-receiving slot in said second table top.
Claim 9
Dependent Claim 64 words
A work table in accordance with claim 7, wherein the second table top is of panel formation having reinforcing strips extending along the longitudinal edge margins of the bottom thereof; and wherein the mounting means providing for raising and lowering said second table top comprises parallel motion mechanism connecting said second table top with the first table top and journaled in said reinforcing strips.
Claim 10
Dependent Claim 49 words
A work table in accordance with claim 2, wherein the other end portion of the first table top is no wider than the parallel motion mechanism, so the latter is free to move in that direction for placing the two tables tops in compact relationship when not in use.

References Cited (Backward Citations)

DE1067288B Cited
DE657270C Cited
US2305343A Cited
FR1025990A Cited
US2879734A Cited
US3384037A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-04-09 1976-10-09 1977-04-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-04-09 1980-10-09 1981-04-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-04-09 1984-10-09 1985-04-10 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag