Патент USA US2108816код для вставки
Feb. 22, 1938. A. H. HQLLAND ET A1. 2,108,816 REFECTORY TABLE Filed Nov. 19, 1954 4 sheets-sheet 1' Feb. 22, 1938. 2,108,816 A. H. HOLLAND ET AL REFECTORY TABLE Fißed NOV. >21.9, 1934 v 4 Sheets-Sheet 2 mm), A A n m m. , s» , www3 RQJRvÑ D"N, T\ „MKM.. ww .\mßmmMuMUN. ml N Feb., 229 193. ~ A. H. HOLLAND Er A». ' ' A 2108,36 REFECTORY TABLE Filed Nov. 19, 19.34 _4 Sheets-Sheet‘â ________,____...____..._______ V L '.l Z7 fr ` _.;íî _______ __ \ ___-_____r ÉL _... _ _____T ___-___ _L_ ___-_ __ ____ _____4.__ ...1V-____ Feb. 22, 1938)4 A. H. HOLLAND ET AL REFECTORY TABLE Filed Nov. 19, 1934 4 Sheets-Sheffl 4 ALFRED H.HNDHOLLAND Eoeafa-r H. HOLLAND APatented Feb. 22, 1938 AT UNITED STATES T 0F FIC E 2,108,816 REFECTORMY TABLE Alfred H. Holland and Robert A. Holland, Win“ stun-Salem, N. C. Application November 19, 1934, Serial No. '753,716 1 Claim. (Cl. 311-56) ’This invention relates to an article of furni ‘ture Íand more vespecially to an extension table Vequipped with movable extension leaves for ex'tending the ,length of the table. , AIn vmany forms of extension tables heretofore used'the additional leaves have been inserted in 4„the ‘central lportion ofthe table, thereby making Vit necessary to make the end leaf portions in movable sections in order to accommodate the “10 ï'additional leaves. It is, therefore, an object of this 'invention to provide additional table leaves which are slidably mounted beneath the ends of thevmain table top and which may be withdrawn „ Vwhen it is desired to extend the length of the *"15 table. VIt is a further object of this invention to pro vide an extensible leaf for a table, desk or the like, with means mounted on said leaf for auto ‘matically raising and holding the leaf ñush with ¿.20 ’the-top -portion of the table. Marinai means are “also >provided for releasing the extension leaf' so that it may again be inserted in a suitable recess disposed‘beneath the end of the table top. ‘ While this Vinvention is particularly adapted for 'x25 use on tables, it is to be understood that the f'principle is equally applicable to writing desks, "ironing boards, or in fact, to any article of fur niture where a leaf is desired to be Withdrawn from extended position when not in use. .Some of the objects of the invention having been‘stated, other objects will appear as the »description proceeds when taken in connection with the `accompanying drawings, in which: ‘Figure 1 is an isometric View of a table made n'35 in accordance with the invention; 'Figure’2 is a top plan View of the table; Figure `3 is a longitudinal sectional View taken --along line 3-3 in Figure 2 showing the table t „leaf on one end in an extended position and the "ml-table leaf on the other end in a closed position; Figure 4 is Va transverse sectional View taken along line 4--4 in Figure 2; Figure 5 is a longitudinal sectional view taken lialong line 5-5 in Figure 2 showing one end of “wüthe recesses beneath the table for receiving a «table leaf when in closed position; Figure 6 is an isometric View of a portion of *an «inverted table leaf support showing means Figure 9 is a view- similar to Figure 8 but show~ ing the table leaf in closed position; Figure 10 is a transverse sectional View taken along line I ß-iû in Figure '7; Figure 1l is a detail sectional View taken along line iI-ii in Figure '7; Figure 12 is a detail sectional View taken along line I2-l2 in Figure 7; Figure 13 is an isometric view of one of the `wedges which is adapted to be mounted `on a table leaf support for holding the table leaf in extended position; ` Figure 14 is an isometric View of a modified form of table leaf support which is somewhat similar to the form used in Figures 1 to 6 inclu Referring more speciñcally to the drawings, the numeral Iii denotes an extension table which is supported by legs il, l2, I3 and Iâ. The upper ends of legs II and I2 are secured together by means of a transverse member i5, and the upper ends of legs i3 and I4 are likewise secured to gether by means of transverse member i5. A. similar longitudinal member Il is connected to the upper ends of legs I i and I3, whereas, mem ber i8 connects the upper ends of legs i2 and I4. Suitable braces I9 are used to connect the members I5, It, I1 and I8 to each other, and these braces are also secured to the upper ends of legs II, I2, I3 and lli. Y « Fixedly mounted on top of members Il and Ill are filler members 25 and 25 respectively which, in turn, have secured to the upper >side thereof a conventional table top 2l. By placing the ñller members 25 and 26 beneath the central portion . of the table top 2l, and cutting them shorter than the length of the table top, suitable recesses «28 and 28’ are provided between the lower side of the table top and the upper side of members il and‘IS inclusive for the reception of the ex tension leaves when in closed position. Transverse member I6 has suitable notches 3i) `cut therein (Fig. 3) , in which are slidably mount ed extension leaf supports 3l and 32. These sup~ ports are identical in all respects except support 32 is shown in the drawings as being opposite hand to support 3|, and, therefor-e, a description of one will suffice for the other, since the same elements of construction are used in both. Se cured to the upper ends of members 3l and 32, for locking the support in elevated position; ‘to 'Figure 7 is a top plan View with portions broken by any suitable means such as screws 33 and 33a, 'away of a portion of a `table'with a modified Vis an extension leaf 34 which is shown in extended ' position in the right-hand portion of Figures l., .form of the invention applied thereto; ’Figure'ß .is a longitudinal sectional view taken m55' ‘along line‘ 8-’-8 `irr‘Figure "7; 15 sive. 2 and 3. The left-hand end o-f supports 3l and '32 are slidably -mounted in U-shaped stirrupî 0 2 2,108,816 members 35 and 36, said stirrup members being top 2l' since the springs 58 normally force the secured to the lower side of table top El by any wedges 48 in notches 3€) at all times. The left-hand portion of the table is similar in all respects to the right-hand portion which has been just described, and similar reference char suitable means such as screws 3'! and 323 respec tively. Secured in the left-hand end of each of sup ports 3| and 32 is a bracket 45 having an inclined portion 46 which is adapted to engage the bot tom of U-shaped members 35 and 36 and raise the left-hand end of supports to a horizontal 10 position when the leaf 34 is being drawn to an extended position. It should be noted that the left-hand en-d of supports 3| and 32 also have projections 41 integral there-with which limits the movement to the right of the leaf 34 when it has reached its proper position. ïn Figure 2 these projections are shown engaging the stirrups 35 and 36 when the leaf 34 is in extended posi tion. Figure 6 shows an enlarged inverted View of the right-hand end of support 3| with the wedge 48 and its associated parts in a released posi tion. The supports 3l and 3‘2 are L-shaped in cross-section an-d have flanges 5u and 5l integral therewith. The flange 5G holds -the upper por tion of wedge 48 in position (Fig. 3), while the ñange 5| is adapted to slide in a suitable groove 52, which groove is cut in the side of wedge 48, and to hold the wedge in the proper position with relation to the support at all times. Secured to 30 the end of wedge 48 is an angle member 53 by any suitable means such as nails or screws 54. A rod 55 has one end pivotally secured to the outstanding leg of angle 53, and the central por tion of said rod is slidably mounted in the out standing leg of a second angle member 55 which is secured to the interior of L-shaped support 3| by any suitable means such as welding. The left-hand end of rod 55, as shown in Figure 6, is bent substantially at right angles and pene 40 trates a slot 57 in the end of support 3|. ln order to normally force the wedge 43 toward the left hand end of support 3| (Fig. 6), one end of ten sion spring 58 is secured to angle member 53 and the other end is secured to angle member 56. When the inclined portion 38a of the wedge ¿i8 is not engaging one of the notches 3E! in transverse member I6, the left-hand portion of rod 55, which engages the end of slot 5l, acts as a stop to limit the movement to the left of wedge 43 in Figure 6. 50 (See left-hand portion of Figure 3.) Suitable blocks 65 and St are secured to the lower side of leaf 3G by any suitable means such as screws 6l and 68. These blocks not only con ceal the ends of supports 3| and 32 but also act as stops against which one may rest one’s finger while another- finger is being used to engage the end of rod 55 to force wedge 4S to the left in Figure 3 and disengage it from the notch 33 in which it rests in transverse member l5. When 60 the block is pushed to the left enough to clear the member i8 the leaf 34 can be lowered and pushed in the recess 9.8, (Figs. 2 and 5), where it will assume a position similar to the position of leaf 34’ in the left-hand end of Figure 3. 65 A suitable cavity S3 is provided in the lower face of leaf 34 in which one may place the ends of his fingers when it is desired to move the leaf to extended position. When the leaf is pulled 70 to extended position from the position shown in the left-hand portion of Figure 3, the wedge 48 will automatically snap into one of the notches 3l! slightly before the leaf has been raised to the final elevated position. When the wedges enter, the leaf will automatically be raised flush with the acters will apply to like parts with prime nota tions added. Figures '7 to 13 inclusive show another modified form of the invention in which a slightly diiferent type of support for the extension leaf 34 is used. In this form, extension leaf 34 is secured on top of supports ‘i5 and 76 by any suitable means such as screws l’ß and ‘i9 respectively. These supports are slida‘oly mounted in suitable notches disposed in transverse member |6 and the extreme left 15 hand portions of these members are slidably mounted in similar notches disposed in trans verse member 8€), said transverse member 80 having its ends secured to the longitudinal mem bers l? and |8. Each of the members 'l5 and 'I6 20 has a pin 3| in the left-hand end thereof which is so located that it will engage the side of member Bil when the extension leaf 34 has- been pulled to its extreme left-hand position.l These pins will prevent any appreciable clearance’fromy 25 occurring between the right-hand end of tabletop’ and the left-hand end of the extension leaf 34. The left-hand ends of these members 15 and 15 aiso have an enlarged portion 82 on the lower side thereof which serves to raise the left-hand 80 eno'. ci' each support ‘l5 and 75 up to a horizontal' position when the leaf 34 is in an extended .posi- . tion. A suitable groove 83 is cut in the lower side' of these supports in which is adapted to -fit a tongue Eli which is integral with the upper side of wedge |35, (Fig. 13). It is seen that by providing a tongue of this type (Fig. 13), that when it en gages a groove 33 that the wedge 85 cannot be come disengaged from the groove except by slid 40 ing out the right-hand end oi' the groove as shown in Figures 7, 8 and 9. Wedge 8E, which is identical to wedge 85, is disposed in the lower side of support i6 and each of these wedges has a beveled surface 33 on the 45 leading edge thereof which is adapted to engage the notches 33 which are cut in the upper end of transverse support I6 when the table leaf 34 is in extended position. ` A transverse rod 89 is adapted to penetrate the 50 wedges 85 and 85, and coniined to the central por- ' tion of rod 85 (Fig. l2), is a U-shaped bracket Sil which has downwardly extending portions 9| with slots 92 therein which slots are penetrated by the rod 89. The collars 93 are ñxedly secured 55 on the rod §39 for confining the U-shaped bracket 9@ in its proper position. Secured to member 9@ as at 35i, is a member |35 which extends to the right (Fig. 7) and is slidably mounted in lthe transverse member i3 (Fig. 11). A suitable but 60 ton 96 is secured on the end of rod 95 for“ manipulating the U-shaped bracket which en gages rod 89. Each of these wedges S5 and 85 is secured to one end of a tension spring 38, said tension spring 65 93 having its other end secured to the trans-'i verse member I6. These tension springs normally force the wedges 35 and 36 to the right in the drawings and causes the wedges to act principally in except the same that manner Vthe tension as the springs wedgesin¿i5this in Figure particu-f' ` 70 lar case are secured to the transverse member lâ whereas, in Figure 3, the tension spring'y is secured to the supports. It is seen that by push ing the button 96, (Figs. 7 and 11), to the left 75 2,108,816 that rod 89 and wedges 85 and 86 will also be pushed to the left thereby causing the beveled portions 88 of the wedges to be disengaged from the notches 30 in the member I6. When this is done, the table leaf 34 and its associated parts may be lowered and placed in a closed position as shown in Figure 9. Figure 14 shows a support very similar to that shown in Figures 1 to 6 inclusive, but it should 10 be noted that this is U-shaped in cross-section instead of L-shaped. This support |00 has flanges |0| and |02 which are adapted to engage suitable grooves |03 disposed in opposite sides of wedge |04. Wedge |04 has beveled surface 15 |0411 and operates in the same manner as wedge 48 and has an angle member |05 secured there to by any suitable means such as nails or screws |06. Pivotally secured to the outstanding leg of angle member |05 is a rod |01 which has its cen 20 tral portion slidably mounted in a second angle member |08, said angle member |08 being secured to the interior of support |00 by any suitable means such as rivets |09. The right-hand end of rod |01 is bent substantially at right angles 25 and penetrates the slot ||0 in the side of the support. A tension spring | | has one end thereof secured to the angle member |05 and the other end of the spring is secured to the angle member |08. This 30 causes the wedge |04 to be pulled to the right at all times and also causes the wedge |04 to engage the notches 30 when the leaf is in extended posi tion. It is seen that the method of releasing the block |04 from the notches 30, is similar in all 35 respects to the method of releasing the wedge 48. By providing the inturned flanges |0| and |02, a more stable support is provided for the wedge |04 as well as presenting a slightly more finished appearance, although it has been found in the cost of construction, that the form shown in Figures 1 to 6 inclusive, is preferable from a manufacturing standpoint due to the simplicity of construction and cost of material. When the extensible leaves are pulled to ex position and before they are elevated, the 45 tended leading ends of the blocks 48, 85 or |04, as the case may be, are pulled .against the frame of the table, and when the extension leaf is elevated, the blocks will move into position and exert a wedging action to hold the extension leaf in the same plane as the table top. It should be noted 3 that as the blocks force the slides against the lower surface of the table top that this results in causing the extension leaf and top to be in the same plane, as it is also evident that should either the top or the extension leaf be warped 5 that there would be still an alignment of the meeting edges of the top and leaf to cause all portions of the leaf and the top to be in the same plane. This would not be true if the upward movement of the slides were limited by means 10 other than having the slides ñt >against the lower surface of the table top. In the drawings and speciñcation there has been set forth a preferred embodiment of the invention, and although specific terms are em 15 ployed, they are used in a generic and descriptive sense only, and not for purposes of limitation, the scope of the invention being set forth in the appended claim. 20 We claim: In a refectory table having a frame and a top secured to the top of the frame in spaced rela tion to the top of the frame and providing at each outer edge .a space for the nesting of leaves, a pair of slides secured to the lower side of each leaf, 25 and having sliding movement in the frame, the top edges of the frame having notches therein for reception of the slides, each slide comprising a piece of sheet metal bent to form a top and a pair of sides, the lower edge of one side portion being 30 bent inwardly, a wedge-shaped block member mounted for sliding movement in each of said slides below the top thereof and between said sides, said wedge-shaped member having a groove in one side thereof into which the said inturned 35 lower edge of one of said side portions is adapted to project, one of the side portions of each of said slides having a bracket secured to the inner surface thereof, a tension spring having one end secured to the bracket and having its other end 40 secured to said block for normally urging said block between the slide and the frame when the leaves are extended, one of the sidewalls of each of said slides having a slottherein, a rod secured to said block and slidably penetrating 45 said bracket and being bent laterally .and pene trating said slot where its end can be engaged to push said block inwardly to permit lowering of the leaf. ALFRED I-I. HOLLAND. ROBERT A. HOLLAND.