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US2110466A - Convertible dinner wagon and the like - Google Patents

Convertible dinner wagon and the like Download PDF

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Publication number
US2110466A
US2110466A US122756A US12275637A US2110466A US 2110466 A US2110466 A US 2110466A US 122756 A US122756 A US 122756A US 12275637 A US12275637 A US 12275637A US 2110466 A US2110466 A US 2110466A
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US
United States
Prior art keywords
leaves
stand
links
leaf
convertible
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US122756A
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English (en)
Inventor
Louis Edward Stanislas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BESWAY Manufacturing Co Ltd
Original Assignee
BESWAY Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BESWAY Manufacturing Co Ltd filed Critical BESWAY Manufacturing Co Ltd
Application granted granted Critical
Publication of US2110466A publication Critical patent/US2110466A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B31/00—Service or tea tables, trolleys, or wagons

Definitions

  • This invention relates to convertible dinner or tea wagons and like portable apparatus of the type comprising a rigid supporting stand (whereof the legs are usually equipped with castors) and mounted thereon a plurality of leaves which are interconnected by parallel-motion links in such manner that, by swinging movement of the links in relation to the stand, the leaves may be brought from a position (hereinafter referred to as the tier position) one vertically above another into a position (hereinafter referred to as the table position) in which they lie edge to edge alongside one another and constitute a single substantially flat shelf or table.
  • a position hereinafter referred to as the tier position
  • the table position a position in which they lie edge to edge alongside one another and constitute a single substantially flat shelf or table.
  • One object of this invention is to provide, in apparatus of the above type, a parallel-motion linkage so arranged and so articulated to the supporting stand that in the tier position of the leaves the top of the uppermost leaf will be substantially flush with the top of the stand, while in the table position the upper surfaces of both leaves will be substantially flush with the top of the stand.
  • a feature of the invention resides in the provision of a parallel-motion linkage (whereby each leaf is constrained to move parallel to itself when the leaves are brought from the tier to the table position and vice vers-a) which has its links pivotally connected to the supporting stand at points which are offset laterally from lines joining the pivotal connections between the links and the leaves.
  • Another feature of the invention consists in so shaping and arranging the individual links of the parallel-motion linkage that in the tier position the links will lie alongside the corner posts of the supporting stand or associated parts of it, and will thereby be more or less concealed from view.
  • Figure l is a perspective view of a dinner or tea wagon with the leaves in the tier position;
  • Figure 2 is a perspective view of the wagon with the leaves in the table position
  • Figure 3 is an end view of the wagon with the corner posts and cross-piece at that end removed to show the linkage, the leaves being in the tier position;
  • Figure 4 is a view similar to Figure 3 with the leaves in the table position;
  • Figure 5 is a view of the locking means for the leaves.
  • the supporting stand which is in the form of an open rectangular frame, comprises four corner posts 2 interconnected near their lower ends by rigid cross pieces 3. At each end of the stand the adjacent corner posts are in addition interconnected at their upper extremities by cross pieces of substantial depth 4, but at the sides of the stand there is no interconnection between the upper ends of the posts.
  • the lower ends of the corner posts are furnished with castor wheels 5 so that when the leaf mechanism is in the tier position the apparatus may be used as a tea or dinner wagon for transporting purposes.
  • the adjustable leaf mechanism comprises two rectangular leaves-6, 1, each of approximately the same width and length as the corresponding cross sectional dimensions of the stand.
  • the leaves are coupled together by two pairs of parallel motion links disposed at opposite ends respectively of the leaves.
  • the links are arranged and articulated to the stand in the following manner.
  • One link of each pair is a substantially straight link 8 pivotally connected at 9 and IE to the two leaves near the corners thereof, and in the tier position the straight links lie, as to the whole of their length, alongside the corresponding corner posts of the stand as shown in Figure 3.
  • the straight links are not connected directly to the stand but are furnished with short arms H which extend at right-angles to the length of the links in a direction towards the opposite corners of the leaves, and at their extremities 33 are pivotally connected to the cross pieces 4 of substantial depth which interconnect the corner posts of the stand at opposite ends of it respectively. It will be appreciated that the short arms of the straight links are located close to corresponding ends of the links, i. e. those ends which will be uppermost in the tier position of the apparatus.
  • a pair of stiff spiral springs l2 are provided one at each end of the frame, one end of each spring being secured to the fixed pivot pin on which the corresponding arm H is rotatable and the other end of the spring being secured to a pin I3 on the arm.
  • the springs are so arranged as to be stressed when the leaves are in the tier position and the purpose of the springs is to assist initially in the movement of the leaves from that position.
  • the other link of each pair (i. e. the link l4, hereinafter referred to as the cranked link) is pivot-ally connected at its opposite ends to the two leaves at points which are spaced apart inwardly from the corresponding corners of the leaves.
  • Each cranked link is pivotally connected at I5to the adjacent corner post of the stand.
  • the cranked link is in two parts rigidly connected together or integrally formed, and comprising as to one part a small L-shaped piece l6, whereof the end' of one limb is pivotally connected at I!
  • the arrangement of the cranked leaf is such that in the tier position, the long limb of the long L-shaped piece will lie alongside the adjacent corner post of the stand, while itsshort limb will lie alongside the edge of the lowermost leaf, and in the case of the small L-shaped piece one limb will extend alongside the cross piece at the upper end of the stand while the other limb will extend upwardly to its pivotal connection with the edge of the leaf.
  • the straight and the cranked links are functionally equivalent, the special form of the cranked link being adopted in order to ensure that in the two position of the apparatus, no
  • the links are attached to the'leaves and framesat their pivotal connectionsby metal plates i9, 20 and 2
  • are screwed to the upper and lower leaves respectively and the plates 20 are screwed to the cross pieces 4.
  • the locking mechanism comprises a bar 22 (whereof one end is accessiblev for manipulation at one side of the lower leaf and provided with a knob 28) which extends under the lower leaf at right-angles. to its length and is interconnected by toggle levers 23 with rods 24 which extend lengthwise of the leaf, and at their extremities are movable through apertures in the marginal portions of the leaf into engagement withalternate holes in the. links.
  • the locking rods are adapted to engage with holes 25 in the cranked links while in the table position they engage with holes 26 inthe straight links.
  • a convertible dinner or tea wagon or like portable apparatus comprising in combination a rigid supporting stand, a plurality of leaves, and
  • a parallel-motion linkage interconnecting the leaves and itself pivotally articulated to the stand to provide of swinging movement of the leaves between a tier position with one leaf vertically above another into a table position with the leaves lying edge to edge alongside one another
  • the linkage aforesaid comprising links which are pivotally connected to the leaves and are pivotally articulated to the stand at points offset from lines joining the pivotal connections between the links and the leaves.
  • a convertible dinner or tea wagon or like portable apparatus comprising in combination a rigid supporting stand formed by corner posts and interconnecting cross bars, a plurality of leaves, and a parallel-motion linkage interconnecting the leaves and itself pivotally articulated to the stand to provide of swinging movement of the leaves between a tier position with one leaf vertically above another into atable position with the leaves lying edge to edge alongside one another, the linkage aforesaid comprising links which are pivotally connected to the leaves and are pivotally articulated to the stand at points offset from lines joining the pivotal connections between the links and the leaves, and the links being so shaped and arranged that in the tier position they will extend, as regards a substantial portion of their length, alongside the corner posts of the supporting stand.
  • a convertible dinner or tea wagon or like portable apparatus comprising in combination a rigid supporting stand, two similar leaves of equal width, 2. parallel-motion linkage interconnecting .the leaves and'itself pivotallylarticulated to the stand to provide of swinging movement of the leaves between a-tier position with one leaf verti- 1 Ill cally above another into a table position with the leaves lying edge to edge alongside one another, the linkage aforesaid comprising links which are pivotally connected to the leaves and are pivotally articulated to the stand at points offset from lines joining the pivotal connections between the links and the leaves, the extent of the offset being equal to the vertical distance between the topmost leaf, in the tier position, and the pivotal connections between the links and the stand, and each being approximately one quarter of the width of a leaf.
  • a convertible dinner or tea wagon or like portable apparatus comprising in combination a rigid supporting stand formed by four corner posts and inter-connecting cross bars, two similar leaves, a parallel-motion linkage comprising two pairs of parallel links pivotally connected to the stand at opposite ends thereof respectively and pivotally connected to the edges of the leaves, each link being pivotally articulated to the stand at a point offset from the line joining the pivotal 10 connections between the link and the leaves.

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  • Accommodation For Nursing Or Treatment Tables (AREA)
US122756A 1936-02-13 1937-01-28 Convertible dinner wagon and the like Expired - Lifetime US2110466A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4428/36A GB470409A (en) 1936-02-13 1936-02-13 Improvements in or relating to convertible dinner wagons

Publications (1)

Publication Number Publication Date
US2110466A true US2110466A (en) 1938-03-08

Family

ID=9776997

Family Applications (1)

Application Number Title Priority Date Filing Date
US122756A Expired - Lifetime US2110466A (en) 1936-02-13 1937-01-28 Convertible dinner wagon and the like

Country Status (3)

Country Link
US (1) US2110466A (fr)
FR (1) FR816610A (fr)
GB (1) GB470409A (fr)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2649206A (en) * 1950-11-28 1953-08-18 Arnold Fredric Table having adjustable top sections
US2913122A (en) * 1953-12-17 1959-11-17 Albert G Lomas Convertible table with pivotally supported table top elements
US3688705A (en) * 1970-11-10 1972-09-05 Castro Convertible Corp Convertible table
US7051476B1 (en) * 2005-03-02 2006-05-30 Craul Donald R Plant bench for use in a greenhouse or nursery structure, and a greenhouse or nursery structure including the plant bench
USD649811S1 (en) 2010-06-02 2011-12-06 Steelcase Inc. Workspace
USD649810S1 (en) 2010-06-02 2011-12-06 Steelcase Inc. Portion of a workspace
USD649812S1 (en) 2010-06-02 2011-12-06 Steelcase Inc. Support
US20110297052A1 (en) * 2010-06-02 2011-12-08 Kirt Martin Frame Type Table Assemblies
US20110297051A1 (en) * 2010-06-02 2011-12-08 Kirt Martin Reconfigurable Table Assemblies
USD650614S1 (en) 2010-06-02 2011-12-20 Steelcase Inc. Portion of a workspace
USD651430S1 (en) 2010-06-02 2012-01-03 Steelcase Inc. Portion of a workspace
USD660250S1 (en) 2010-06-02 2012-05-22 Steelcase Inc. Cable trough
US8667908B2 (en) 2010-06-02 2014-03-11 Steelcase Inc. Frame type table assemblies
US9185974B2 (en) 2010-06-02 2015-11-17 Steelcase Inc. Frame type workstation configurations
US10039374B2 (en) 2016-05-13 2018-08-07 Steelcase Inc. Multi-tiered workstation assembly
US10517392B2 (en) 2016-05-13 2019-12-31 Steelcase Inc. Multi-tiered workstation assembly
US12376677B1 (en) 2012-10-10 2025-08-05 Steelcase Inc. Ergonomic seating system, tilt-lock control and remote powering method and apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IE902202A1 (en) * 1990-06-18 1991-12-18 Bartholemew Foley Table apparatus

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2649206A (en) * 1950-11-28 1953-08-18 Arnold Fredric Table having adjustable top sections
US2913122A (en) * 1953-12-17 1959-11-17 Albert G Lomas Convertible table with pivotally supported table top elements
US3688705A (en) * 1970-11-10 1972-09-05 Castro Convertible Corp Convertible table
US7051476B1 (en) * 2005-03-02 2006-05-30 Craul Donald R Plant bench for use in a greenhouse or nursery structure, and a greenhouse or nursery structure including the plant bench
USD662336S1 (en) 2010-06-02 2012-06-26 Steelcase Inc. Workspace
US8689705B2 (en) * 2010-06-02 2014-04-08 Steelcase, Inc. Reconfigurable table assemblies
USD649812S1 (en) 2010-06-02 2011-12-06 Steelcase Inc. Support
US20110297052A1 (en) * 2010-06-02 2011-12-08 Kirt Martin Frame Type Table Assemblies
US20110297051A1 (en) * 2010-06-02 2011-12-08 Kirt Martin Reconfigurable Table Assemblies
USD650614S1 (en) 2010-06-02 2011-12-20 Steelcase Inc. Portion of a workspace
USD651430S1 (en) 2010-06-02 2012-01-03 Steelcase Inc. Portion of a workspace
USD660250S1 (en) 2010-06-02 2012-05-22 Steelcase Inc. Cable trough
USD649811S1 (en) 2010-06-02 2011-12-06 Steelcase Inc. Workspace
USD662731S1 (en) 2010-06-02 2012-07-03 Steelcase Inc. Workspace
US8667908B2 (en) 2010-06-02 2014-03-11 Steelcase Inc. Frame type table assemblies
USD649810S1 (en) 2010-06-02 2011-12-06 Steelcase Inc. Portion of a workspace
US9185974B2 (en) 2010-06-02 2015-11-17 Steelcase Inc. Frame type workstation configurations
US9210999B2 (en) * 2010-06-02 2015-12-15 Steelcase Inc. Frame type table assemblies
US11944194B2 (en) 2010-06-02 2024-04-02 Steelcase Inc. Frame type workstation configurations
US11930926B2 (en) 2010-06-02 2024-03-19 Steelcase Inc. Frame type workstation configurations
US10681980B2 (en) 2010-06-02 2020-06-16 Steelcase Inc. Frame type workstation configurations
US11317716B2 (en) 2010-06-02 2022-05-03 Steelcase Inc. Frame type workstation configurations
US11882934B2 (en) 2010-06-02 2024-01-30 Steelcase Inc. Frame type workstation configurations
US12376677B1 (en) 2012-10-10 2025-08-05 Steelcase Inc. Ergonomic seating system, tilt-lock control and remote powering method and apparatus
US10517392B2 (en) 2016-05-13 2019-12-31 Steelcase Inc. Multi-tiered workstation assembly
US10039374B2 (en) 2016-05-13 2018-08-07 Steelcase Inc. Multi-tiered workstation assembly

Also Published As

Publication number Publication date
GB470409A (en) 1937-08-13
FR816610A (fr) 1937-08-12

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