US895071A - Pedestal-extension-table lock. - Google Patents

Description

m.'s95,071. 4 PATENTED AUG. 4,1908.

0. s. Bfimon.

PEDESTAL EXTENSION TABLE LOCK.

uruonxox 211.52 JUL! 1. 1901.

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EMIL TYDEN, OF HASTINGS,

MICHIG. X.

PEDESTAL-EXTENSIOH-TABLE LOCK.

No. 895,071. Specification of Let-tens Patent. Patented Aug. 4, 1908.

Application filed July 1, 19m. Serial No. 381,709.

has of a pedestal extension ta To all whom it may concern:

Be itknown that I, CHARLES S. BURTON, a citizen of the United States, residing at Oak Park, in the county of Cook and State of Illinois, have invented new and useful Improvements in Pcdestal-Extension-Table Locks, of which the following is a spccifica tion, reference being had to the accompanying drawings, forming a part thereof.

The purpose of this invention is to provide an improved device for locking u the membl e, articularly adapted for use with edesta extension tables in which the tab e to members have a limited range of extensibility relatively to their pedestal members; that is, so that the top can be opened to a certain extent without openingthe pedestal.

The invention consists of the features of construction shown and described as indicated' in the claims.

In the drawingsz-Figure 1 is a longitu dinal vertical sect-ion of a pedestal extension table embodying this invention, the table being shown in closed and locked condition both of pedestal members and top members. Fig. 2 is a similar view showing the middle portion of the table with the top members opened to the extent necessary for admitting one liller and giving access to the pedestal look, but with the pedestal still locked. Fig. 3 is a detail plan view showing the table-top locking device. Fig. 4 is a detail section at the line 44 on Fig. 2.

\Yithout entering into details of the construction for the purpose which is familiar, it may be understood that the table-to memhers, I and 2, are connected with their respcctive pedestal members, 3 and 4, for extension of the top relatively to the pedestal members; that is, so that the top may be opened or spread apart for receiving fillers to a certain extent without opening the pe lestal.

For locking the two pedestal members together there may be provided any desirable form of locking device adapted to connect said pedestal members when they are near together but \before they are completely closed, and to be. operated upon when the pedestal membersare thus connected [or drawing said members tightly together. I have shown for that purpose a latch, 5, pivotally connected to an tnstandin lever, 6, which is fnlcrumcd at its owcr end on a pcdestal member, 3, the latch being located at about the middle of the height of the pedestal and provided with a slope-nosed hook, 5 at its free end adapting it to ride upon and become engaged with any suitable engaging device, as a staple, 7, on the opposite odestal member, 4. tends through the center leg, 8, which is apertnred at S for the )urpose.

The lever, 6, has or pivoting at its fulcram a vertically elongated slot, 6, adapting it to be raised and lowered about its pivot in addition to 'l'ulcruming thereon in the rocking movement of the lever which is erforme when it is at the lower point which it will normally occu y by gravity, except when lifted as hereina'ter explained. The latch, 5, is stopped on the lever, 6, so that it will not fall behirw a )10)0I posit-ion extending nearly horizontal y tor engaging the opposite pedestal member. This is most conveniently effected, in view of the fact that the latch is made of a sheet metal stri folded u on itself, and having two layers riveted toget ier as shown, by making the fold constitute a leap, 5*, through which the lever, 6, extends for pivotal connection of the latch thereto, the back or cross of the loop, 5, being stopped against the back edge of the lever for stopping the latch as described. The lever, 6, extends up to the top of the pedestal and protrudes somewhat there-above in position to be encountered by a finger or thrust rod. 9, which is carried by the opposite table top member and is thrust across the parting plane f the two members above the top of the pedestal and center leg when the two tax-3e top members are closed together. It will be seen that with this construction if the latch, 5, is made of such length with respect to the position of the cooperating element on the opposite edestal member, that the two elements can become engaged while the podestal members are separated a distance of one inch, the closing up of the table-top members involving the movement of the nietnber, 2, toward the parting plane a distance of over two inches after he finger, 9, enct'untcrs the upper end of the lever, 6, or

any part thereon provided for such encounter. rocking the lever, 6, over its fulcrum a distance of two inches or more at the upper emi causing it to move one inch or over at the middle point where the latch, 5, is connected to it, will thereby draw the pedestal 11:

The latch preferab y exi i i l l 'I have shown a simple form 1' spring catch a: :ing

reliance may be placed em irely non tiona-l hold of the tenonsvritl'r r h customarily provided for matctnm'- A catch or positive engaging device is preferable. and

comprising an abutment or hookit. on one table-top member and s slope tsrised hook or lat-ch, 1l,on the op cslte member. Such latch may be locatec in position for being easily reached by the operator to disengage it when the table is closed, but preferably, the parts. 10 and 11, are mounted near the middle of the width of the table and the latch, 11, is provided with an operating hill, 14, extending thence over the top of the slides to the margin of the Is is where it terminates in a suitable handle. 15. in a position to be easily reached and pulled to disengage the latch.

In the constru tion as thus far described, it may be understood that the pedestallocking device is accessible at the tor) of the pedestal for unlocking the peaiesze. whenever the table-top members are spread even the distance for admitting one It will also be understood that the pedestai would not be unlocked at all unlessit was desired to extend the table so i to 511122 11 more fill- I ers than could be admitted by extending the top members relatively to the pedestal. In the structure shown in the drawings it is assumed that the top is to be extended only for admitting one filler while the pedestal remains locked, and there is shatnvn :2. device by which the iedestai is auto sricsiiy unlocked when t ie tabletop members are extended farther than this. This device consists of a bcll-crank lever. 17-41%. "cit-ruined on the topof the pedestal member- 3 raving a horizontally extendirg arman eye, 6, in the upper en 0* I e and anupstanding arm.liwrmti mthepath of an abutment 10 mounted on side of the table-top member- 1- ter of convenience and it ec )urpose as well as an edit: i have located the parts so 10, which carries the match n mentioned, which forms part a locking the two table-trim mes: serves for this encotmternavL pose the abutment, It and the )osition at which mounte is such as to cause tlm occur at some point after the it her, 1, has been extended o filler width,that is, its 1; admitting one flllcr. It ant encounter will rock the Fever- I P full crum, thus liftin the latch nose, 5, clear of i the staple. 7, and permitting the pedestal to,

be opened. If the extension devices are constructed to allow the further extending'movement of he table-top member, 1, relative to the pedestal, the plate, 10, in such further xtending movement will run off the end of the lever arm, 18, and )ermit the lever to resume its normal position with the latch, 5, dropped to a point at which its nose will encounter the staple, 7, in closing up the pedestal and become automatically enga ed therewith. A light spring, 20, is provide operating on the lever, 17 18, to hold it at the positzon at which the arm, 18, will be encountered. as described, by the abutment, 10, but which will. yield to )ermit the abutment to pass in over the end'of the lever arm when the table top is closed up.

I claim?- 1. In a pedestal extension table having table top members extensible relatively to their respective pedestal members in combination with such table top and )edestah members. cooperating devices carrier by the )edestal members for engaging said memers when they are near together and before they are closed, and for drawing the two members to ether after such engagement; an actuating element by which the drawing movement is communicated extending to the top of the pedestal, and means on one table top member for encountering said actuating element to give said drawing movement at the end of the closing movement of said table top members.

2. In a pedestal extension table having table top members extensible relatively to their respective pedestal members in combination with such table top and pedestal members. a pedestal locking device comprising two elements located at a substantial distance from the top of the pedestal, one on each member of the pedestal, adapted to be engaged with each other, one of said engaging elements being mounted for effecting the engagement and disengagement of said two elements and for drawing the members togcther after such engagement; an actuating element by which such movement is communicated extending to the top of the pedestal, and means on one table to member for communicating such disengaging movement in the extending. movement of said table top member.

3. In a pedestal extension table having table top members extensible relatively to their respective pedestal members, the combination with such table top and pedestal members of cooperating devices carried by the pedestal members adapted for mutual engagement and disengagement, one of said devices being mounted for movement to effect the engagement and disengagement and for relaxing and closing the pedestal members; an actuating element extending from said movable element to the top of the pedestal member to which said element pertains; operatin means mounted on the upper partof said pedestal member for giving said actuating clement said engaging 211K disengaging movement; means mounted on the table top member pertaining to such pedestal member positioned for encountering said operating means to give the disengaging movement in the extending movement of said table top member, and inde )endent means mounted on one of the t: 10 top members for giving said actuating element the pedestal-closing movement in the closing movement of said table top member with respect to its pedestal member.

4. In a pedestal extension table having table top members extensible relatively to their respective pedestal members, in combination with such table top and pedestal members, a pedestal locking device comprising two elements located at a substantial distance below the top of the pedestal, one mounted on each member of the pedestal, adapted to be engaged with each other, one of said engaging elements being mounted for two independent movements, one for the engagement and disengagement of said two elements and the'other toward and from the opposite pedestal member; an actuating element by which said two movmnents are communicated extending to the top of the pedestal, and means on one table top member for encountering said actuating element to give the second above-mentioned movement at the end of the closing movement of said table top members.

5. In a pedestal extension table. having table top members extensible relatively to their respective pedestal members, in combination with such table top and pedestal members, a pedestal locking device comprising two elements located at a substantial distance below the top of the pedestal, one mounted on each member of the pedestal,

adapted to be engaged with each other, one

of said engaging elements being mounted for two independent movements, one for the engagement and disengagement of said two elements and the other toward and from the opposite pedestal member; an actuating element by which said two movements are communicated extending to the top of the pedestal, and means on one table-top member for giving said disengaging movement in the extending movement of said table-top member.

6. In apedestal extension table having table top members extensible relatively to their respective pedestal members, in combi nation with such table top and pedestal members; a pedestal locking device com rising two element-s located at a substantia dis tance below the top of the pedestal and adapted for mutual engagement and disengagement, one of said elements being mounted for two independent movements, one to cffeet the engagement and disengagement and the other toward and from the opposite pedestal member for relaxing and closing the pedestal members; an actuating element extending from said movable engaging element to the top of the pedestal member to which said engaging element pertains; operating means mounted at the upper )itli) of said pedestal member for giving sa-ir actuating element said engaging and disengaging movement'; means mounted on the table top member pertaining to said pedestal member positioned for encountering said operating means to give the disengaging movement in the extending movement of said table top member, and independent means mounted on one of the table top members for giving said actuating element the pedestal-closing movement in the closing movement of said table top member with respect to its pedestal member.

7. In a pedestal extension table having the table top members extensible relatively to their respective pedestal members, in combination with such table top and pedestal members, a pedestal locking device compris ing cooperating elements on the two pedestal members located at a substantial distance below the top of the pedestal and adapted for mutualengagement and disengagement; a vertically positioned lever to which one of said cooperating elements is connected, having a range of vertical movement with respect to its pivot for engaging and disengag ing said elements and a range of swinging movement about its ivot toward and from the opposite pedestal member for drawing said members together when the two elements are engaged, said lever being extended to the top of the pedestal member on whieh it is mounted means at the upper part of said pedestal member for raisin and lowering said lever; means on one tabIe top member for operating said raisingand-lowering means in the movement of said table top member with res ect to its pedestal member, and means on tie other table-top member for iving the lever the swinging movement in the closing movement of said table top member. I

In testimony whereof, I have hereunto set my hand at Chicago, Illinois, this 24th day of June, 1907.

CHAS. S. BURTON.

Witnesses:

J. S. Anno'r'r, M. GERTRUDE A r.

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