US362603A - bringezu - Google Patents

Description

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EXTENSION TABLE.

No. 362,603. f c JPatented May 10, 1887.

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(No Modelg) F. BRINGEZU. EXTENSION TABLE.

Patented May 10, 1887.

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- EXTENSION TABLE. No. 362,603. Patented May 10, 1887.

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(No Model.)

F. BRINGEZU.

EXTENSION TABLE.

Patented May 1o; 1887.

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l n//////////////////////////////////// ////////V////////// /////\/xf///// UNITED STATESV PATENT OFFICE.

FREDERIK BRINGEZU, oF NEW YORK, N. Y.

EXTENSION-TABLE.

SPECIFICATION forming part of Letters Patent No. 362,603,dated May 10, 1887.

Application tiled August 20, 1886. Serial No. 211.373. (No model.)

To all whom, it may concern:

Be it known that I, FREDERIK BRINGEZU, of the city, county, and State of New York, have invented certain new and useful Improvements in Extension-Tables, of which the following is a specification.

Theobject of my invention is to provide a new and improved extensiontable, to which the leaves used in extending the table are permanently attached and need not be removed when the table is shortened. The table is simplein construction and strong and durable, and can be extended and shortened very easily and rapidly.

lIhe invention consists in an extension-table constructed with leaf-supporting slides, which are mounted to slide parallel with and adjacent to the side pieces of the tableframe, the leaves being permanently secured on the slides.

The invention also consists in the construction and combinations of parts and details, as will be. fully described and set forth hereinafter, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a longitudinal sectional view of my improved extension-table shortened as much as possible. Fig. 2 is a longitudinal sectional elevation, the table being extended the width of one leaf. Fig. 3 is a longitudinal sectional elevation, the table being extended to the width of two leaves. Fig. 4 is a longitudinal sectional elevation, the

table being extended the width of three leaves.

Fig. 5 is a sectional planview of the under side of the table as shown in Fig. 1. Fig. 6 is a sectional plan view of the under side of the table shown in Fig. 2. Fig. 7 is a sectional Y plan view of the under side of the table shown in Fig. 3. Fig. 8 is a sectional plan view of the under side of the table shown in Fig. 4. Fig. 9 is an enlarged sectional detail view of part of the table, showing the relative positions of the leaves and the slides supporting the same. Figs. 10 and 11 are face views of the slide-plates for actuating the swinging legs, one being inverted. Fig. 12 is a sectional plan View on the line x m, Fig. 10. Fig. 13 is an enlarged detail cross-sectional view through the slides on the liney y, Fig. 1. Figs. 14 and 15 are face views of the latches in different positions. Fig. 16 is a horizontal sectional view of the latch. Figs. 17 and 1S are enlarged detail side views of the slides shown in lone-third of the top of the table. plates A3 and A4 a leaf, A5, is placed, which different positions. Fig. 19 is an enlarged sectional view on the line w w, Fig. 18.

Similar letters of reference indicate corresponding parts.

The main frame A of the table is provided with four xed legs, A, at the corners, and two-thirds of the top of the table are covered by lixed top plates. One-thirdoi` the top of the table is covered by three fixed leaves, A3, of the same size, one above the other, and the middle part of the frame of the table is covered by a plate, A4, which is made integral with the uppermost plate, A3. The size of the leaves A3 is equal to one half of the size of the plate A4. rlhe size of the leaf A4 is equal to twothirds ofthe entire top of the table, and the size of each leaf A3 is equal to Upon the plate, A5, covers the entire top of the table.

lt will be understood that where the three rigid and permanent leaves A3 are fastened one above the other, the top plate, Aforms the fourth layer when the table is folded or shortened, and also when the table is extended. When the table is closed, there are `two layers at the middle, the leaf A4 and the top plate, A5. At that end of the frame opposite the one at which the iixed leaves A3 are provided, there are also four layers-namel y, the top plate, A5, below the same the leaf C, below that the leaf D, and below the leaf D the leaf E, all the leaves being ofthe same size and the area of each being equal to onethird 'of the area of the top plate, A5. At one end the side pieces, c, of the framcA are united by a cross-piece, A7, placed edgewise. At the other end the frame is open.

At the bottom edges the side pieces are connected by the slats AS and a slat, A, at that end of the frame opposite the cross-piece A7, the bottom of the slat Ag being beveled at the middle or provided with a recess to permitthe ICO fingers catching on the removable cross-piece A10, which, when the table is folded or closed, fits in between those ends of the side pieces of the frame A opposite the ends to which the fixed cross-piece A7 is fastened; or, in other words, the: said removable cross-piece A1" fits in between the upper end of the legs A. As the leaf A, above mentioned, inust rest on the top edges of the side pieces of the frame A, it is evident that the middle partof the said side pieces must be raised to such a height corresponding to the thickness of two leaves, as shown in Figs. 2 and 4.

To the innersides of the side pieces, a, of the table-frame the planks F are secured lengthwise, said planks extending from the open end of the table-frame toward the closed end a distance equal to the width of two leaves-that is, equal to slightly more than twothirds of the length of the table-frame. Said planks F are each provided in their inner faces-f'hat is, the faces facing the longitudinal center plane of the table-franiewith the longitudinal groove F, which is inelincd'froni the front upper cornerto the inner lower corner of the plank. So as to avoid con fusion, those faces of the slides orsu pports facing the longitudinal center plane of the table will be designated as the inner faces or sides, and the opposite sides or faces toward the table-frame will be known as the outer sides or faces. Said groove F, as well as all other guide-grooves in theslides,are preferablyy Y dovetailed, and in front of each groove F a cleat or tongue, F4, is fastened, whichy projects the depth of the groove from the inner face of the plank F, the length of said tongue being equal to about one-sixth of the length (more or less) of the plank F. The inner end of that part of the tongue projecting beyond the face of the plank is beveled downward and inward, as at j", Fig. 19. On the inner face of cach plank F the outer face of a slide, G, rests, and on the inner face of each slide G the outer face of a slide, H, rests, and on the inner face of each slide H the outer face of a slide, J, rests, the outer ends of the said slide J being united by the movable cross-piece Alo of the table-frame, which movable cross-piece was mentioned heretofore.

The leaf E is permanently attached to the slide J, and the leaf D is hinged at the bottoni part of its rear edge to the top edges of the slide H at d, so that it can overlap or rest upon the top edges of the slides H and those parts of the slides J against the inner sides of the slides H. The leaf C is pivoted to the upper edges of the slides G, at c, in the sanie manner that the leaf D is pivoted, so as to per- 1nit of raising said leaf slightly, which leaf can rest on the top edges of the slides G and those portions of the slides H resting against the sides of the slides G.

As has been stated, a tongue, F4, is secured in the front upper end of the inclined groove F3 of each plank F, which tongue is mounted to slide in the longitudinal dovetailed groove G in the outer face of the slide G, the inclination of said groove G being such that when the slide G is withdrawn the grooves F G will be in line. At the inner end of the said inclined groove G in the outer surface of the slide G a tongue, G2, is fixed, which projects from the outer surface of the slide G a distance equal tothe depth ofthe groove F3 in the fixed plank F, said tongue G passing loosely into the groove F in thesanie manneras the tongue F4 otl the plank F passes into the groove G, thus permitting the slide G to slide on the plank F.

Adjacent to the frontend of the fixed tongue G2 an aperture or slot, N, is formed in the back of the groove G', in the outer surface of the slide G, which slot extends through to the back of the groove G3, formed in the inner surface of the slide G and running in the same direction with the groove G. lu the top of the groove G a notch, N', is formed, and in the top ofthe groove Gn alarger notch, N2, is formed, as shown in dotted linesin Fig. 17. A plate, M, is countersunk in the back of the groove G3 and its notch IN2, and to said plate a latch, M, is pivoted, which is pressed downward by the spring M, fastened on the plate M. A pin, O, projects from said latch M through a curved slot, O', in the plate M, and through the slot N, so that the end of said pin O projects into the groove G, adjacent to the front end of the tongue G2, as shown in Fig. 17. The latch M is provided at its swinging end with a lug, F, which extends in an oppositedirection to the pin 0 and projects into the groove G3. In the front end of the groove G a tongue, G, is fixed, which is beveled the same as the tongue F, previously described, and which tongue G slides in an inclined dovetailed groove, H, provided in the outer face ofthe slide H, in the same manner as the groove G is provided in the slide G. A tongue, H, is fastened in the rear end of the groove H and projects into the groove G"in the inner side of the slide G. The slide H is provided in its inner side with the groove H, in the saine manner as the slide G is provided wit-h the groove G, and a plate, M, provided with a latch in the manner described above, is fastened on the slide H. in front of the tongue H". The slide J is provided in its outer surface with a dovetailed groove, J, in the same manner as the groove Gis provided in the outer surface of the slide A tongue, H, is fastened in the groove H in the inner face of the slide H at the front end, said tongue passing and sliding in the groove J in the outer face of the slide J; but said tongue H" is not beveled at its rear end, as a bevel is not necessary. A tongue, J, is fixed in the rear end of the groove J in the outer face of the slide J, and passes into the groove H3 in the inner face of the slide H.

lVhen the table is folded, as shown in Figs. 1 and 5, and is to be extended, the cross-piece A1 is seized and pulled outward-that is, in the direction of the arrow zo. The cross-piece Aw, which is pulled in the direction of the arrow w', is connected only with the slide J, and thus said slides are pulled out in the direction of the arrow x. -As the lug P of the latch M fastened. 0n the slide H ,rests against the front end of the tongue J2 of the slide J, as shown in Fig. 19, said latch is also moved in the direction of the arrow x', and as said latch is fastened on the slide H the slide H is moved in the saine direction. The frontend ofthe tongue H2 of the slide H rests against the lug P of the latch M on the slide G, and thus said slide Gis also moved in the direction ofthe arrow m', and thus the slides J, H, and G are moved in the direction of the arrow x' altogether, the slide G sliding on the fixed plank F. Such movement in the direction of the arrow x' can take place a distance equal tothewidth of one leaf, and thereby the leaves C, D, and E are drawn from under the top plate, A2, which is slightly raised, as shown in Fig. 2 in dotted lines.`

When the said slides have moved the distance of one leaf, the pin O of the latch M on the slide G strikes against the bevel f of the tongue F4, fixed in the front end of the groove F2 of the fixed plank F, whereby said piu O and the latch M are raised, and thereby the lug P of the said latch is lifted up into the recess N2 and above the top edge of the tongue H2, fastened in the rear end ot' the groove H in the outer face of the slide H, and thus said tongue H2 is disengaged from the lug of the latch, permitting the slide H to move in the direction of the arrow fr; The slide G can move no farther in the direction ofthe arrow x,'as the inner end-of the tongue F2 abuts against the front end of the tongue G2, fixed on the saidslide G. As stated, theslideH now moves inthe direction of the arrow sv and the slide J moveswith it,as the slides HJ are still connected by the latch M ony the said slide H. The slides H and J are moved together a distance equal to the width of one'of the leaves, and all parts are brought into the position shown in Fig. 3, the leaves D E being moved from under the leaf C, which swingsdown and rests upon the slides G and the slides H J, as shown in Fig. 7. During the time that the slides H J are moved this distance the beveled end of the cleat G4, projecting from the inner surface of the slide G, strikes the pin O of the latch M', pivoted on the slide H, whereby said latch is raised in the manner previousl y described, and the slide J is disengaged from the slide H as the lug l? of the said latch M on the slide H islifted above the top ofthe tongue J2 on the slide J, in the direction of the arrow x', the slide H being held as the front end of its tongue H2 rests against the beveled end of the tongue G2 of the slide G.

The slide J is moved in the direction of the ,arrow w until the front end of its tongue J2 one leaf, whereby the leaf E is moved in front of the leaf D, said leaf lD resting on the slide H and the slide J. The table is now fully extended, and is in the position shown in Figs. 4-and 8. The outerends of the slides H are supported by the legs R, which are pivoted, as will be described hereinafter.

The plate A4 has beveled grooves a* in its under side, t0 permit the slides G lnoving upward at the same time rthat they are being moved outward.

The table is shortened or folded, or brought from the position shown in Fig. 4 to the position shown in Fig. l, in the following manner: The leaf D is lifted, as shown in dotted lines in Fig. 4, and the leaf E and slides J moved in the inverse direction of the arrow x. Then the leaf() is raised, as shown in Fig. 3, and the slides J and H and the leaf E are moved in the inverse direction of the arrow x' and the leaves D and E passed under the leaf C, and then all three leaves are passed under the top plate, A5, which is raised, as shown in dotted lines in Fig. 2, and the slides J, H, and G and leaves C, D, and E are pushed inward in the inverse direction of the arrow x. When the slides J are pushed inward, the latches in the slides H are still held raised by the bevels of the tongues Gton the slides H and the pins O on the latches M of the slides, thus permitting the moving the tongues J2 of the slides J under the raised lugs P of the latches M of the slides H. When said slides J have been pushed inward,they act on the slides H, which are then pushed inward, whereby the bevels of the tongues Gt'of the slides G are removed from under the pins of the latches M on the slides H, thus permitting the latches to drop in front of the tongues J2, whereby said slides J and H are locked together. The tablecan thus be lengthened the width of one, two, or three leaves, the top surface always remaining level, and all the leaves -remaining on the table, whether the same are in use or not. As the guide-grooves in the planks F and the slides `G H J are inclined said slides rise as they are moved outward, thus keeping the top of the table at the same level. As the slides rise in moving outward, and the bottoms of the legs R are to rest on the floor when the table is extended, it is evident that said legs R cannot be fixed, but must be pivoted, for if they were fixed they would prevent the slides from moving down along the inclined grooves. The legs R can be adjusted to be swung under the top plates into the position shown in Fig. 2 by hand or automatically. I prefer to use the automatic device, which is constructed in the following manner:

The legs R are connected by a cross-piece, R2, and are each pivoted to the bottom edges of the slides H, near the outer ends of the same, in such a manner that they can be swung inward and toward the under side of the top of theftable. A dat angle-lever, R', isfastened and countersunk in each leg, the pivot of the end of the leg being at the turning-point oft-he angle-iron, and the other part of the angleiron is connected to a rod, S, which moves in a longitudinal recess or groove, S', in the outer face of the slide H, said recess or groove being covered by a plate, S2, fastened on the outerface of the slide, and having at its inner end the slot T, provided at the ends with the parts or notches T' T2, inclined toward the top edge of the slide G and from each other, the said slide G being shown inverted in Fig. Il. The inner end of the rod S is bent at right angles to form a lng, S, which is passed through the slot T, and also passes into alongitudinal slot, U2, formed in a plate, U, fastened on the inner face of the slide G, and covering a groove or recess, U', in the same. At the front end of the slideG the slot U is provided with a downwardly-extending enlargement, U, the front end edge, U, of which is beveled downward and inward, as shown in Fig. IO. A spring, V, is fastened in the groove or recess U', and at its free end is provided with a prong, V', which is located in the enlargement U3 ot' the slot U2. Said prong has its face beveled outward in the direction from the fixed end tothe free end of the spring, as shown in Fig. l2, and that end of the tooth facing the inclined end U* of the enlargement U" of the slot U'l is provided with a bevel, V2.

The operation ofthe leg device is as follows: When the legs are raised, the lng Sion the end of the rod S is in the end T of the slot T, and is also in the end U5 of the slot U2. When the slides H and .I are moved in the direction of the arrow x', thelug S3 on the inner end ofthe rod S slides along the groove U' until it strikes the prong V' of the spring V, and as the said prong is beveled, the lug S3 presses the spring V inward, and after said lug S3 has passed, the spring V snaps outward, the said lng S and the rod S being in the position shown in dotted lines in Fig. l2. By this time the free ends of thelegs have been withdrawn from under the cross-piece A9. The lug S3 strikes against the beveled end U of the enlargement U of the slot U2, and thereby the lug Sig is moved in the direction indicated in dotted lines and arrows in Fig. I1, whereby the legs are swung down. The legs are locked in place by the lug S,which rests against the end of the beveled prong V' of the spring V. As stated above, to fold the table the slides Jare first moved in the inverse direciton of the arrow w', which does not affect thc legs R; but as soon as the slides H are moved in the inverse direction ofthe arrow fc the rods S, which are in said slide H, are also moved in the same direction, and the lugs S are pressed against the beveled ends V2 of the prongs V', whereby the lugs S3 are moved downward and ont of the ends T2 of the slots T into said slot. The lugs S strike against the shoulder Y of the enlarge` ment U3, whereby said lugs arc moved in the inverse direction ofthe arrow-line, shown dotted in Fig. I1. IVhen said lugs S3 reach the ends of the slots T, theyarc moved upward by the part Tz and pass over the shoulders Y and along the slots U2.

By the above-described movements the legs are swung up, and by the time their free ends arrive at the cross-piece A they are above the same and pass over the same and the several cross-pieces, as shown in Fig. 1. The legs are thus swung down as soon as the slides II are withdrawn and swung up as soon as the slides II are pushed inward.

I am aware that sliding tables have been constructed in which the extension -plates moved on inclines; but in such tables the plates were supported by lugs of different height, which lugs were mounted to slide on theinelined tracks. I am also aware that in extensiorrtables the end wings were provided with folding legs. I am also aware that in extension-tables the leaves were ,supported by swinging clips for the purpose of' raising and lowering the wings or leaves, so that when the table is extended the leaves or top plates will be in the same plane. All this I do not claim, broadly, as my construction is different.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. An extension-table provided with a series ofslides sliding parallel with and adjacent to thesidepiecesof the table-frame, and of leaves fixed directly to said slides, substantially as shown and described.

2. An extension table constructed with slides which are mounted to slide parallel with and adjacent to the side pieces of the frame, inclined grooves in said slides, tongues on each slide passing into the grooves of an adjacent slide, and leaves permanently attached to the slides, substantially as shown and described.

3. An extension-table constructed with a series of slides mounted to slide parallel with and adjacent to the sides of' the frame, said slides having inclined grooves in both faces, tongues on each slide passing into grooves of the adjacent slides, and leaves permanently attached to the slides, substantially as shown and described.

4. In an extension-table, lthe combination, with the table-frame having fixed plates covering two-thirds of the area of the top of the same, of' a movable plate covering the entire area of the top ofthe table, slides mounted to slide parallel with and adjacent to the side pieces of the frame, and leaves secured permanently to the slides, substantially as shown and described.

5. In an extension-table, the combination, with the table-frame, of the three leaves A3, one secu red above the other and covering onethird of the arca of the top of the table, the leaf A", covering the middle third of the top of the table, and the removable top plate covering the entire area of the top of the table, slides mounted to slide parallel with and adjacent to the side pieces of the frame, and leaves atiached'to the slides, substantially as shown and described.

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6. The combination, with a table-frame, of the fixed leaves A3, fixed leaf A4, having the inclined grooves a* in the under side, slides having inclined grooves, leaves fixed to the slides, and a removable top plate, substantially as shown and described.

7. In an extension-table, the combination, with the table-frame, of slides on the same, leaves fastened to the slides, tongues ou the slides, and latches provided on the slides and operated by the tongues on the slides, which latches lock the slides together until said latches are operated, substantially as shown and described.

8. In an extensiontable, the combination, with the frame, of a series of slides having inclined longitudinal grooves in both faces, a tongue fastened in each of said grooves, one tongue being provided at one end of each slide and the tongue or tongues of one slide passing into the grooves of the adjacent slides,and of latches pivoted to theslidcs and having projections extending into both grooves of the slide on which the latch is fastened, and of leaves fastened to the slides, substantially as shown and described.

j 9. The combination, with the table-frame with slides, each having a longitudinally-inclined groove in each face, of a tongue being fastened in each groove of each slide, the tongues of one slide being at opposite ends and sides of the same, a latch'pivoted on each slide in front of one of the tongues, the tongue opposite the one at which the latch is provided having a bevel in the end facing the latch, a pin projecting from one side of each latch into one of the grooves 'and a lug projecting from each latch into the groove, and leaves on the slides, substantially as shown and described.

l0. 'Ihe combination, with the table-frame, of a series of slides having longitudinal inclined grooves, tongues fastened in the grooves and having beveled ends, latches pivotedon the slides, said latches having pins on which the bevels of the tongues can act, and of leaves on the slides, substantially as shown and deconnected to the legs, rods connected with the an gle-pieces and passing th rough recesses in the slides to which the legs are pivoted, and plates secu red onthe slides adjacent thereto,to which the legs are pivoted, which plates are provided with slots in which the ends of the above-men tioned rods can pass, substantially as shown and described.

12. In an extension-table, the combination, With the frame, of slides mounted to slide parallel with and adjacent to the side pieces of the frame, legs pivoted to one part of the slides, anglepieces fastened to the legs, rods S, attaehed to the angle-pieces and passed through the recesses or grooves in one pair of the slides, plates fastened to those slides to which the legs are pivoted and provided with the slots T, lugs on the ends of the rods,'which lugs pass through the ends of the slots, plates U, fastened to the ends of the slides adjacent to those to which the plates are pivoted, which plates are provided with grooves U and enlargements U3, and of leaves on the slides, substantially as shown and described.

18. The combination, with the frame, of slides mounted to slide parallel with and adjacent to the side pieces of the frame, leaves fixed on said slides, latches for locking the slides together, and beveled projections on the slides for disengaging the latches, substantially as shown and described.

In testimony that I claim the foregoing as my :invention I have signed my name in presence of two subscribing Witnesses.

FREDERIK BRINGEZU.

Witnesses:

OscAR F. GUNZ, CARL KARP.

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