US1075115A

US1075115A - Collapsible support for work-tables.

Info

Publication number: US1075115A
Application number: US72384212A
Authority: US
Inventors: Otto Maier; George J Metz
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-10-04
Filing date: 1912-10-04
Publication date: 1913-10-07
Anticipated expiration: 1930-10-07

Description

0. MAIER & G. J. MBTZ.

GOLLAPSIBLE SUPPORT FOR WORK TABLES.

APPLICATION FILED 0013.4, 1912.

LQ'Y5J15, I Patented 00t.'7, 1913.

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OTTO MAIEB AND GEORGE J. IVIETZ, 0F PHILADELPHIA, PENNSYLVANIA.

COLLA'ISIBL'E SUPPORT FOR WORK-TABLES.

Application fi1'ecl'0ctober 4, 1912.

T 0 all whom it may concern Be it known that we, O'rro MAIER and GEORGE J. METZ, both citizens of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Collapsible Support for l/Vork-Tables, of which the following is a specification.

This invention relates to a collapsible support or trestle for work tables and relates more particularly to supports for paperhangers tables and has for an object to provide a support which may be readily folded into a compact form so that it may be transported from one place to another, occupying a minimum amount of space and which can also be unfolded and set up expeditiously and thus form a substantially rigid, firm support for one end of a work table.

It further consists of other novel features of construction, all as will be hereinafter fully set forth.

For the purpose of illustrating our invention, we have shown in the accompanying drawings one form thereof which is at present preferred by us, since the same has been found in practice to give satisfactory and reliable results, although it is to be understood that the various 'instrumentalities of which our invention consists can be variously arranged and organized and that our invention is not limited to the precise arrangement and organization of these instrumentalities as herein shown and described.

support in its open or operative position. Fig. 2 represents a section on line m50 of Fig. 1. Fig. 3 represents a section on line Q Q of Fig. 1. Fig. 4 represents a section on line z-2 of Fig. 1. Fig. 5 represents a section showing certain details of construction. aa Fig. 1. Fig. 7 represents a perspective of the device in its closed or inoperative position.

vice, each of which has connected thereto a foot member 3 which is adapted to be ex-:

tended in operative position to give the desired height to the support and it will be.

noted, in the present instance. that each of the foot members 3 are pinned to the leg members 1 and 2-, shown at 4, in order to form a pivot so that the two parts can be Specification of Letters Eaten-t.

Fig. 6 represents a section on line Patented Oct. '7, 19.13.

SeriaINo. 723,842.

turned or swung into closed position beside the respective leg members. The leg 1 is provided with a longitudinally disposed slot 5 for the purpose of receiving a latch-bar 6 which is pivoted at 7 within the said slot 5, the opposite end thereof being free to swing outwardly and interlock with a pin 8 of the leg '2, In the present instance, the leg 2 is provided with a slot 9 of sufficient length to permit the required movement of the latch-bar 6. It will further be noted that the upper end of each of the foot members 3 is forked or bifurcated to receive the said latch-bar 6 which also serves to lock these members in extended or operative position;

10 designates an opening formed in the leg 1 transversely of the slot 5 in order to provide a means to easily push the latchbar 6 out of the slot so that it may be grasped and swung to its operative position.

The pivot pins 4 also serve as a support for an auxiliary foot member 11 and an auxiliary leg member 12, there being, as will be readily understood from Fig. 1, two of these members carried by each pin 4, and, in the present instance, they are locked together in open position by means of a latch 13 pivoted within a slot 14 of the auxiliary leg 12 and adapted to pass into a bifurcation 15 of the end of the auxiliary leg members 11. In inoperative position these latches 13 are folded within the slot 14 and thus do not interfere with. the proper folding action.

16 designates a cross bar secured for pivotal action by a pin 17 passing through the Figure 1 represents a perspeotlve of the auxiliary leg members 12 at a point adjacent one of the ends, the said cross bar 18 being adapted for detachable connection with the upper ends of the

leg members

1 and 2 through the medium of a latch 19 pivoted at 20, in the present instanceto the leg 2, the said latch being adapted to pass through an opening 21 in the cross bar 16 and enter an opening 22 in the leg 1 as will be apparent. In order that the point of attachment of the

legs

1 and 2 to the cross Referring to the drawings :-1 and 2 designate respectively the main legs of the debar 16 may be varied, if 'desired, a number of openings 23 are provided to receive the latch 19 and it may engage any one of the same for the purpose indicated. In con nection with the latch 19 it will be noted that a slot 24 is provided in the leg 2 in order to retain and conceal the latch 19 when the device is in its folded position.

25 designates an arm pivoted at 26 tothe cross bar 16 and fitting in one position with in a longitudinally disposed slot or groove 27 and in its open or extended position it is swung outwardly and forms a continuation of the bar 16 as shown in Fig. 1.

28 designates a pair of brace members joined together at 29 by a pivot pin and having their outer ends fixed respectively to the

legs

1 and 2 by means of rivets 30 or like fastening devices. The function of these braces is to form a support for the various members of the device in its closed position and also to strengthen the

legs

1 and 2 at a point adjacent their connection with the cross bar 16.

In connection with the cross bar 16 it will be noted that the same is transversely cut away as shown at 31 to provide finger apertures by means of which the arm 25 can be pulled out to its operative position.

In the operation of the device it will be assumed that the trestle is in its closed position as shown in Fig. 7 and a description given of how the parts are moved to form the complete device shown in Fig. 1. The legs 12 are swung to one side of the pins 4 as pivots and the foot members 11 then reversed in position and locked by moving the latches 13 to engage the forked ends as seen in Fig. 1 or Fig. 4. The foot members 3 are each swung through an arc of 180 and the latch-bat 6 moved from its position in the slot 5 to engaging position with the pin 8 on the opposite leg member and this movement also brings the latch-bar int-o locking engagement with the bifurcated ends of the foot members 3, thus locking these parts in straddled position and forming an elfective brace therebetween. The cross bar 16 is next brought into position with its free end between the

legs

1 and 2, at which time the latch 19 is inserted through the necessary openings and holds the parts in a fixed mannor in its horizontal position ready to support the end of a table or platform at the required height. In order to provide for a platform of considerable width the extension member 25 is utilized and is turned through a suitable are to a horizontal posi tion in alinement with the cross bar 16.

It will now be apparent that we have devised a complete unitary structure simple in construction and operation and which may be readily converted from a strong support ing trestle into a compact, neat and convenient article for transportation. As the device is particularly adapted for use in paperhanging it will readily be seen that we have materially lessened the mechanism and appliances which those practising this occupation have been obliged to carry with them and in place of the cumbersome and heavy supports we have provided a light and con venient apparatus which occupies little space and can be readily and easily carried from. one place to another.

It will now be apparent that we have devised a novel and useful construction of a collapsible support for work tables which embodies the features of advantage enumerated as desirable in the statement of the invention and the above description, and while we have, in the present instance, shown and described a preferred embodiment thereof which has been found in practice to give satisfactory and reliable results, it is to be understood that the same is susceptible of modification in various particulars without departing from the spirit or scope of the invention or sacrificing any of its advantages.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent, is

1. In a device of the character stated, a plurality of leg members arranged in pairs, a pivot for each pair of leg members, a pair of foot members movably mounted on each pivot and adapted to be extended to form a continuation of the respective leg members,

a latch bar pivoted to one of said leg members and adapted to interlock with a pair of said foot members and an opposite leg memher to maintain said parts respectively in extended and diverged position, means to lock the remaining pair of foot members in extended position, a bar pivoted to one pair of said leg members, and means to adjustably connect said bar with the remaining pair of leg members, all of said parts being adapted to fold together and form a compact, portable article. 7

2. In a device of the character stated, a pair of main leg members, a pair of auxiliary leg members secured together at one end, a pin for each main leg member forming a pivotal support for the free end of said auxiliary member, a pair of foot members movably mounted on each pin and adapted to form a continuation of the respective leg members, a bifurcated end formed on each, foot member, a latch bar pivoted to one of said leg members and adapted to interlock with the bifurcated ends of a pair of said foot members and also an opposite leg member to maintain said parts respectively in extended and diverged position, means carried by each remaining leg member to interlock with the bifurcated end of a foot member, a bar pivoted to the outer ends of said auxiliary leg members, and means to adjustably connect said bar with the outer ends of the main leg members, all of said parts being adapted to fold together to form a compact, portable article.

3. In a device of the character stated, a pair of main leg members, each having a longitudinal slot therein, a pair of auxiliary leg members secured together at one end, a pin for each main leg member and forming respectively a pivot for the free ends of said auxiliary members, a pair of foot members movably mounted on each pin and adapted to form a continuation of the respective leg members, a bifurcated end formed on each foot member, a latch bar pivoted to one of said main leg members and adapted in one position to seat in said leg member slot and in another position to interlock With the bifurcated ends of a pair of said foot members and also With said slot in the other main leg member, locking' means carried by each auxiliary leg member adapted to interlock With the bifurcated ends respectively of the remaining foot members, a bar pivoted to the outer ends of said auxiliary leg 1 members, and means to adjustably connect said bar With the outer ends of said main leg members, all of said parts being adapted to fold together to form a compact, portable article.

OTTO MAIER. GEORGE J. METZ.

lVitnesses:

C. D. MOVAY, H. M. TAFFERTY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C.