US2566800A - Center extension table - Google Patents

Center extension table Download PDF

Info

Publication number
US2566800A
US2566800A US32001A US3200148A US2566800A US 2566800 A US2566800 A US 2566800A US 32001 A US32001 A US 32001A US 3200148 A US3200148 A US 3200148A US 2566800 A US2566800 A US 2566800A
Authority
US
United States
Prior art keywords
platform
swivel
elements
extension table
center extension
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
US32001A
Inventor
Hutcherson Archie
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US32001A priority Critical patent/US2566800A/en
Application granted granted Critical
Publication of US2566800A publication Critical patent/US2566800A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • A47B11/00—Tables with tops revolvable on vertical spindles

Definitions

  • the length of said stand may be longitudinally adjustable to accommodate a row of books for example.
  • Figure l is a side elevational view of the swivel stand.
  • Figure 2 is a plan view thereof.
  • Figure 3 is a left end elevational view thereof.
  • Figure 4 is an elevational section on lin-e 4-4 of Figure 2.
  • Figure 5 is an elevational section on line 5-5 of Figure 4.
  • Figure 6 is a fragmentary elevational section'. on line 6-6 of Figure 1;
  • Figure '1 is a fragmentary eleva-tional section on line 1--1 of Figure 4.Y
  • the swivel stand consists of the circular stationary base II which has formed therein a central. circular recess I2 in its top surface as shown in Figures 4 and 5.
  • Substantially cylindrical swivel I3 is uprightly positioned within circular slot I2 which acts as a guide therefor, permitting manual 360 degree rotation thereof relative to base I I.
  • Rivet or bolt I4 extends downwardly from the bottom of central transverse slot I5 formed in swivel I3, and down through a corresponding central opening in baseV II, in suchA manner as to loosely retain saidv swivel Within the guide recess I2in saidbase.
  • Longitudinally adjustable platform elements I6 and I1 are horizontally positioned upon the top surface of swivel Z13, platform element I6 having a pair of longitudinal dove-tail slots 20 formed in the inner surfaces ofits bifurcated elements I9, to cooperatively and guidingly receive the longitudinally arranged outwardly extending tongues I8 formed in the opposite side edges of platform element I 1.
  • platform elements I6 and I1 are positioned in the same horizontal plane, however platform I6 has a central opening or longitudinal slot 2I within which platform I1 is adjustably movable respectively; At the Asame time said slots 20 provide a means of horizontally retaining platform I1 upon the top surface of swivel I3.
  • Rotatable shaft 22 is transversely jouirnalled through swivel I3 and centrally through its slot I5, having the handle 23 secured thereto at its outer end for rotating the same in one direction or the other.
  • a pinion 24 is suitably secured upon shaft 22 within slot I5 in swivel I3 with suitable spacing washers 25 being provided upon shaft 22 upon opposite sides of said pinion.
  • a rack gear 26 depends downwardly from platform I1 being secured thereto for longitudinal reciprocal movements within slot I5, and with its teeth projecting downwardly and in mesh with the teeth of manually rotatable pinion 24.
  • a second oppositely arranged rack gear 21 is also positioned within the lower portion of slot I5 with its teeth extending upwardly in spaced relation to the teeth of rack gear 26, and being also in mesh with the teeth of pinion 24.
  • rack gear 21 is interconnected with platform I6 by means of the intermediate blcck 28 whereby rack gear 21 lies in parallel spaced relation to the under surface of platform I6.
  • Upwardlyextending stops 3I are arranged upon the opposite ends of guide bars 29 and are adapt;-
  • a pair of upright rudderv shaped elements 34 are arrangedrandsecured togV the outer ends of platforms I6 and I1 being transversely notched at 35 to receive cross-bars 32 and 33 respectively which move with platfarms
  • l'land I'l Rollers3 42 are'fmountediupon the-lowerf endsloff thefbifurcated portionsfuiandare adaptedto co'-A operatively'- engageA ⁇ the samesurface upon which base ISIl is mounted2 tolfacilitatelrotary 'movement of said platforms and at the same time provide a secondary support for the outer ends thereof.
  • Detent means 43 are pivotally mounted upon the lower portions of bifurcated elements 4I within central slots 44 to normally prevent the upward removal of bifurcations 4 I, but which may be manually tilted inwardly within slots 44 whereby said bifurcated element 40 may be removed from the respective platforms if desired.
  • a base a pair of co-planar platform elements slidably mounted upon said basel-inhorizontal position, a pair of spaced longitudinally extending guide rails positioned above said platform elements and joined to said base imsub'stantially parallelrrelation to said platform elements, upwardly extending stops upon the outer ends ofi saidrails, and? transver-sebans carried by said. platform elements?, being' positioned-fv for; cooperative slidingg engagement: with the tonI ⁇ surfaces of said rails, the outward adjustmeritiof'l said platform elementabeing limited by, said bars enga-gingsaid stops EHI Number.y

Landscapes

  • Transmission Devices (AREA)

Description

Sept. 4, 1951 A. Hu'rcHERsoN 2,566,800
4 CENTER EXTENSION TABLE vFiled June 9, 1948 1 2 sheets-sheet 1 `1a y l 40.
a4 I f u. g a4 l IH 6 y AIII. a IIL?? 5 29 l 3335 3/ Il .l 1| ll llll. l .l -11 |l W' l 'I 23 |I 1l Il l W llm'l .EN ,Il I 6 'il |l|| 1 mf 4l 4' W11 lllll :i WHHHI .9
l 4 36 I6 l l7 38 4o 3l 32 29) 1|" 33 3 .lll |ll *ga-os---uxqF- I Il.. IMI 34 u l 1 l 9l 2a IN 34 L m NI /f i im. t- 4 I l I l Ili' 4.
l N V EN T 0R. Amr/e #um/mso.
Sept 4, 1951 A. HuTcHl-:RSON 2,566,800
CENTER EXTENSION TABLE Filed June 9, 1948 2 Sheets-Sheet 2 IIII Patented Sept. 4, 11951 UNITED STATES PATENT OFFICE CENTER EXTENSION TABLE y Archie Hutcherson, Detroit, Mich.
Application June 9, 1948, Serial No. 32,001
1 Claim. 1
. whereby the length of said stand may be longitudinally adjustable to accommodate a row of books for example.
It is the further object of this invention to provide a lcentral swivel element upon the' base of said stand, with said swivel element having a pair of oppositely arranged platform elements which are longitudinally and reciprocably ad- :justable with respect to each other for regulating the length of said platform.
It is the further object of this invention to provide in said swivel element a manually adjustable memberwhich isoperatively engagable with both of said platform elements whereby on operation of said manually adjustable member said platform elements may be horizontally moved towards or away. from each other upon said swivel element. 1
It is the still further object of this invention to provide rack gears in `association with said platform elements and movable therewith, being oppositely arranged with respect to each other and with the manually adjustable member carrying a pinion which i-s in mesh with both of said rack gears.
These and other objects will be seen from the following specification and claim in conjunction with the appended drawings in which:
Figure l is a side elevational view of the swivel stand.
Figure 2 is a plan view thereof.
Figure 3 is a left end elevational view thereof.
Figure 4 is an elevational section on lin-e 4-4 of Figure 2.
Figure 5 is an elevational section on line 5-5 of Figure 4.
Figure 6 is a fragmentary elevational section'. on line 6-6 of Figure 1; and
Figure '1 is a fragmentary eleva-tional section on line 1--1 of Figure 4.Y
It will be understood that the above drawings' illustrate merely a preferred embodiment of the invention, and lthat other embodiments are contemplated within the scope of the claim hereafter` set out.
Referring to the drawings,V the swivel stand consists of the circular stationary base II which has formed therein a central. circular recess I2 in its top surface as shown in Figures 4 and 5.
Substantially cylindrical swivel I3 is uprightly positioned within circular slot I2 which acts as a guide therefor, permitting manual 360 degree rotation thereof relative to base I I.
Rivet or bolt I4 extends downwardly from the bottom of central transverse slot I5 formed in swivel I3, and down through a corresponding central opening in baseV II, in suchA manner as to loosely retain saidv swivel Within the guide recess I2in saidbase. A
Longitudinally adjustable platform elements I6 and I1 are horizontally positioned upon the top surface of swivel Z13, platform element I6 having a pair of longitudinal dove-tail slots 20 formed in the inner surfaces ofits bifurcated elements I9, to cooperatively and guidingly receive the longitudinally arranged outwardly extending tongues I8 formed in the opposite side edges of platform element I 1.
Thus platform elements I6 and I1 are positioned in the same horizontal plane, however platform I6 has a central opening or longitudinal slot 2I within which platform I1 is adjustably movable respectively; At the Asame time said slots 20 provide a means of horizontally retaining platform I1 upon the top surface of swivel I3.
Rotatable shaft 22 is transversely jouirnalled through swivel I3 and centrally through its slot I5, having the handle 23 secured thereto at its outer end for rotating the same in one direction or the other. A pinion 24 is suitably secured upon shaft 22 within slot I5 in swivel I3 with suitable spacing washers 25 being provided upon shaft 22 upon opposite sides of said pinion.
A rack gear 26 depends downwardly from platform I1 being secured thereto for longitudinal reciprocal movements within slot I5, and with its teeth projecting downwardly and in mesh with the teeth of manually rotatable pinion 24.
A second oppositely arranged rack gear 21 is also positioned within the lower portion of slot I5 with its teeth extending upwardly in spaced relation to the teeth of rack gear 26, and being also in mesh with the teeth of pinion 24.
The forward end of rack gear 21 is interconnected with platform I6 by means of the intermediate blcck 28 whereby rack gear 21 lies in parallel spaced relation to the under surface of platform I6.
As both rack gears 26 and 21 are in operative mesh with pinion 24 upon opposite sides thereof,
' platform; el'errlentsl I:.6 and I'I.
Upwardlyextending stops 3I are arranged upon the opposite ends of guide bars 29 and are adapt;-
ed for respective engagement with cross-bars 32J and 33 secured respectively to platform elements;
I6 and I'I to limit outward adjustment thereof. As shown in Figure 4 a pair of upright rudderv shaped elements 34 are arrangedrandsecured togV the outer ends of platforms I6 and I1 being transversely notched at 35 to receive cross-bars 32 and 33 respectively which move with platfarms |16j and Iifandfwhichfcpoperatvelv:beanuponthe topsurface guidenharsir `Aaviewedfv in"lligima2;hollow,I lll-shaped element 36 isgsuitably-securedjtofplatform: I6; forlongetudinal;adjustment:therewith;beingfslobted@ai#3l to receive outwardly-r extend-ina s udebars 29. f Af. corresponding; U-shapedg element1 38;: is` op positely arrangedffrom Ll-shaled element. 36-,qbe-u ingr` secured. to2 platform: I.='I:' for: longitmiinall adjustifientJ therewith; there; alsdbeing; slots; 39; formed' therein to necevezguideebarsil relativelya to: whicht element.. is movable in.y unisonzwigth's platform I'LI` toawhiehlitfI isattachedi` The free ends of elements 3B; slidablyf project withinztheffreeiends off: element 3651in at'elescoping action whereby-f' intanylof the adjusted: posi,- tions: of! platforms. I6; andY IFF lsaid U-shaped", ele;-A mentsi 36 and 331ornamentaillyformf the; sidewalls ofv` a1 boat, forinstaneei 1A pairf oi.F upright; transversely varrangedi book-z end elements: on stopsillll are-.respectivelyrmounteA edl uporr platforms IIandf-y I'II with: thein; lowerbifurcated ends 4Il s'lidab'ly: extending downl through the correspond-ingtransverseopenings in platforms! l'land I'l Rollers3 42 are'fmountediupon the-lowerf endsloff thefbifurcated portionsfuiandare adaptedto co'-A operatively'- engageA` the samesurface upon which base ISIl is mounted2 tolfacilitatelrotary 'movement of said platforms and at the same time provide a secondary support for the outer ends thereof.
Detent means 43 are pivotally mounted upon the lower portions of bifurcated elements 4I within central slots 44 to normally prevent the upward removal of bifurcations 4 I, but which may be manually tilted inwardly within slots 44 whereby said bifurcated element 40 may be removed from the respective platforms if desired.
Having described my linuentiom reference should nowbe had to the' claim which' follows for determining the scope thereof.
I claim:
Incombination, a base, a pair of co-planar platform elements slidably mounted upon said basel-inhorizontal position, a pair of spaced longitudinally extending guide rails positioned above said platform elements and joined to said base imsub'stantially parallelrrelation to said platform elements, upwardly extending stops upon the outer ends ofi saidrails, and? transver-sebans carried by said. platform elements?, being' positioned-fv for; cooperative slidingg engagement: with the tonI `surfaces of said rails, the outward adjustmeritiof'l said platform elementabeing limited by, said bars enga-gingsaid stops EHI Number.y
VVHoffeHERsoN-a REFERENCES CITED;-
UNITED STATES PATENTSl Y
US32001A 1948-06-09 1948-06-09 Center extension table Expired - Lifetime US2566800A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US32001A US2566800A (en) 1948-06-09 1948-06-09 Center extension table

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US32001A US2566800A (en) 1948-06-09 1948-06-09 Center extension table

Publications (1)

Publication Number Publication Date
US2566800A true US2566800A (en) 1951-09-04

Family

ID=21862566

Family Applications (1)

Application Number Title Priority Date Filing Date
US32001A Expired - Lifetime US2566800A (en) 1948-06-09 1948-06-09 Center extension table

Country Status (1)

Country Link
US (1) US2566800A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2741520A (en) * 1954-03-15 1956-04-10 Charles F Mares Table attachment for an operating table
US2747955A (en) * 1952-05-23 1956-05-29 Ehrlich Mauritius Multiple tire table with extensible top
US2779107A (en) * 1950-12-30 1957-01-29 Brace Jeanne Bredeville Informational and display device
US2879897A (en) * 1954-03-29 1959-03-31 Shechtman David Self-adjusting holder for flat articles
US3094007A (en) * 1961-11-17 1963-06-18 Sears Roebuck & Co Equalizer slide means
US20080314851A1 (en) * 2007-06-21 2008-12-25 Jesse Dustin Jacoby Portable desktop apparatus for exercise equipment
US20160038360A1 (en) * 2013-02-05 2016-02-11 Hill-Rom Services, Inc. Bed having rack and pinion powered width expansion

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US110220A (en) * 1870-12-20 Improvement in extension tables
US117659A (en) * 1871-08-01 Improvement in extension tables
US658852A (en) * 1900-10-02 Frank M Kling Extension-table.
US791798A (en) * 1904-07-12 1905-06-06 Valentine Kling Book-finisher's stand.
US907649A (en) * 1908-01-11 1908-12-22 Alice M Stover Rotatable table.
US925427A (en) * 1908-09-23 1909-06-15 Addy S El-Kouri Extension-table.
US984479A (en) * 1908-03-10 1911-02-14 Giles H Griswold Combined bookcase.
US1173646A (en) * 1913-06-27 1916-02-29 Wilbert F Blue Extension-table.
US1307808A (en) * 1919-06-24 Table opening ahd closing device
US1363138A (en) * 1920-05-17 1920-12-21 Murtyn G Markham Bookrack
US1371550A (en) * 1920-01-05 1921-03-15 Joseph M Eisler Internal-combustion engine
US1647224A (en) * 1923-01-26 1927-11-01 Edward A Henricson Extension table
US1950021A (en) * 1933-09-05 1934-03-06 Jr Charles L Creech Extension table
US2264017A (en) * 1939-12-06 1941-11-25 Bowmen Francis Bookrack
US2301563A (en) * 1939-11-16 1942-11-10 Michigan Artcraft Company Table

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US110220A (en) * 1870-12-20 Improvement in extension tables
US117659A (en) * 1871-08-01 Improvement in extension tables
US658852A (en) * 1900-10-02 Frank M Kling Extension-table.
US1307808A (en) * 1919-06-24 Table opening ahd closing device
US791798A (en) * 1904-07-12 1905-06-06 Valentine Kling Book-finisher's stand.
US907649A (en) * 1908-01-11 1908-12-22 Alice M Stover Rotatable table.
US984479A (en) * 1908-03-10 1911-02-14 Giles H Griswold Combined bookcase.
US925427A (en) * 1908-09-23 1909-06-15 Addy S El-Kouri Extension-table.
US1173646A (en) * 1913-06-27 1916-02-29 Wilbert F Blue Extension-table.
US1371550A (en) * 1920-01-05 1921-03-15 Joseph M Eisler Internal-combustion engine
US1363138A (en) * 1920-05-17 1920-12-21 Murtyn G Markham Bookrack
US1647224A (en) * 1923-01-26 1927-11-01 Edward A Henricson Extension table
US1950021A (en) * 1933-09-05 1934-03-06 Jr Charles L Creech Extension table
US2301563A (en) * 1939-11-16 1942-11-10 Michigan Artcraft Company Table
US2264017A (en) * 1939-12-06 1941-11-25 Bowmen Francis Bookrack

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2779107A (en) * 1950-12-30 1957-01-29 Brace Jeanne Bredeville Informational and display device
US2747955A (en) * 1952-05-23 1956-05-29 Ehrlich Mauritius Multiple tire table with extensible top
US2741520A (en) * 1954-03-15 1956-04-10 Charles F Mares Table attachment for an operating table
US2879897A (en) * 1954-03-29 1959-03-31 Shechtman David Self-adjusting holder for flat articles
US3094007A (en) * 1961-11-17 1963-06-18 Sears Roebuck & Co Equalizer slide means
US20080314851A1 (en) * 2007-06-21 2008-12-25 Jesse Dustin Jacoby Portable desktop apparatus for exercise equipment
US20160038360A1 (en) * 2013-02-05 2016-02-11 Hill-Rom Services, Inc. Bed having rack and pinion powered width expansion
US9763840B2 (en) * 2013-02-05 2017-09-19 Hill-Rom Services, Inc. Bed having rack and pinion powered width expansion
US10603233B2 (en) 2013-02-05 2020-03-31 Hill-Rom Services, Inc. Method of powered width expansion of a bed
US11376177B2 (en) * 2013-02-05 2022-07-05 Hill-Rom Services, Inc. Powered width expansion of articulated bed deck
US20220287895A1 (en) * 2013-02-05 2022-09-15 Hill-Rom Services, Inc. Belt driven width expansion of a bed

Similar Documents

Publication Publication Date Title
US2566800A (en) Center extension table
US2986438A (en) Automobile service tray
US3364881A (en) Drafting table with single pedal control of both vertical movement and tilting
SE7903604L (en) Freight transport path
DE2020409C3 (en) Device for grinding and polishing of metallographic and mineralogical samples
US2712972A (en) Extension arm
US3268192A (en) Table mountable iron rest
US2689744A (en) Creeper
US4027806A (en) Reciprocating belt feeder for elongated bins
US2821240A (en) Vehicle seat
US1466029A (en) Peeking mechanism
US3017227A (en) Ball bearing guides
US2274908A (en) Filing apparatus
US2279947A (en) Grading machine
US3017219A (en) Detachable table top
US2184663A (en) Print drying apparatus
US3468032A (en) Geometric design instrument
US3638633A (en) Toy catapult
US1451846A (en) Collapsible supporting device
US2375447A (en) Scarfing device
US2016313A (en) Clothesrack
US3356433A (en) Filing cabinet
US3278150A (en) Supporting stand
GB1400509A (en) Seats
USRE20269E (en) Traveling work table