US2620246A - Inspection table - Google Patents

Description

Dec. 2, 1952 T. JAGACINSKI INSPECTION TABLE 2 SHEETS-Sl-IEET 1 Filed June 20, 1950 lnvmtl r THEODORE E. JAGAC/NS/(l .89 $4 4 W Gttorneg Dec. 2, 1952 T. E. JAGACINSKI 2,520,246

INSPECTION TABLE Filed June 20, 1950 2 SHEETS-SHEET 2 FIG. 2

Zhwcutor THEODORE E. JAG/4 C/NS/(l Gltorucg Patented Dec. 2, 1952 UNITED STATES PAT ENT OFFICE 2,620,246 i sPEo'rmN new TheodoreE. .lag'acinski, Orange, J assi'gnor Monroe Calculating Machine Company, Orange, N. J., a corporation of Delaware delineation we 20, 1950, Serial No. 169,251

2 Claims. 1

The inventionrelatesto inspection tables or the like. More particularly, the invention relates to a table. which is adapted to, facilitate. the use of apparatus for inspecting machine parts. I

The apparatus for use with which the invention is particularly adaptable is designed to permit rapid and accurate inspection of a plurality of like machine parts without the u e of gauges and the like. Such apparatus includes a screen which may be positioned for viewing from a horizontal direction. An enlarged drawing, including the allowed tolerances, of the partto be inspected ismade upon the viewing screen. A suitable fixture is designed to hold the part in fixed position between a light source and an optical system which projects an image of the part on the viewing screen, enlarged to the size of the drawing. The image is superimposed upon the drawing and thus the operator is able to determine if the part conforms to the specified tolerances.

Considerable fatigue has been experienced by the operator in the use of the apparatus although the inspection and placement of the successive parts in the fixture may be performed while in sitting position. Such fatigue results from lack of arm support while reaching to adjust the parts in the fixture which is to the rear of the light source. Furthermore, it has been necessary for a female operator to wear special attire, such as slacks, for the reason that a portion of the apparatus extends forwardly between the limbs when sitting in working position.

The table of the invention overcomes the above noted operational disadvantages by providing adjustable arm supports and by enclosing the operator from the sides to prevent embarrassing observation, thus eliminating the necessity for special attire. Also, the table provides space on either side of the operator for trays for containers for the parts.

The invention, however, will best be understood from the following description with reference to the accompanying drawings in which:

Fig. 1 is a perspective view of the inspection table;

Fig. 2 is a sectional view taken on line 22 of Fig. 1 showing the inspection apparatus positioned for use with the table;

Fig. 3 is a sectional detail of one of the arm rests taken on line 33 of Fig. l.

The inspection table includes a pair of longitudinally extending and transversely spaced top portions I (Fig. 1). Each top portion is supported at its outer ends by legs 3 which are reenforced :by members 5 connecting the forward and rear legs of eachtop pd'rtio respectively; A transversely adjustable spiel member 1 connects the two upper reenter-em members 5 of top portions I and alike adjustable spacing member 9 connects the two lower reenrerc ng' members 5.

Theinspection apparatus Ilwhich is shown in light lines (Fig. 2) as positioned for use with the invention, is a projector or the type in'anufao ture'd by the American- Optical Company and known-as the A0 optical Biojectioii'Comparotar. To position the a paratusrer use with the inspection table the slot and bolt adjustments I3 (Fig. 1) efspacmg members- I and 9 are first released toperni-it the top portions I to be moved apart a sufficient distanee to receive the housing I5 (Fig. 2) of the apparatus housing the light source therebetween and to permit forward movement thereof into engagement with spacing members I and 9. Top portions I of the table are then moved inwardly to engage the sides of housing I5 and the adjustments I3 are tightened. When apparatus I I is thus positioned, the forward ends of top portions I of the table extend a distance to the front of light housing I5. The inner edges I8 of top portions I of the table extend longitudinally to the rear of housing I 5 and outwardly at IE0 at an angle forwardly of the housing, thereby providing a seating space for the operator between the forward ends of the table.

To the rear of light housing I5, a vertically adjustable plate Ia (Fig. 2) is mounted on the apparatus. Plate la is adapted to retain a clamp or fixture 2| for holding a part 22 to be inspected. To the rear of fixture 2I, an enclosed optical system projects an image of the part 22 held in fixture 2| on a screen 23 in line of sight with the operator sitting between the forward ends of the table.

It will be noted that the operator must reach rearwardly and around light housing I5 to adjust in and to remove the parts from fixture 2I. These operations when performed without arm support have proved very tiring to the operator. A pair of adjustable arm rests 25 (Figs. 1 and 3) are therefore mounted on top portions I of the table to the rear of inclined edges I6a. The arm rests 25 each comprise a plate having a pair of guide pins 21 extending downwardly through openings in top portions I. Each arm rest 25 rests upon the upper end of a vertically adjustable bolt 29. Therefore, arm rests 25 may be adjusted to the position which will most comfortably support the arms of the operator.

It will be noted that the housing I5 will be extended between the legs of the operator when sitting in a position which will enable him to reach fixture 2|. Obviously, this arrangement makes necessary special attire, such as slacks in the case of a female operator. To overcome the disadvantage of this arrangement, aprons 3| extend downwardly from the outer edges of top portions l of the table, thereby enclosing the sides of the tableandshielding the operator from embarrassingobservation, thus eliminating the necessity for special attire.

Top portions I of the table forward of arm rests 25 are available to place trays or containers for the parts before and after inspection. The portions of the table to the rearof arm. rests 25 are available for storage space andprotect housing 15 which is of comparatively fragile'construction.

I claim:

1. A table for use with apparatus of the character described, comprising? a pair of longitudinally extending top portions each having an inner edge extending longitudinally a given distance from one of its ends and then at an angle to its opposite end, a plurality of legs supporting said top portions, a plurality of adjustable spacing members connecting and locating said top portions in spaced relationship with their longitudinally and angularly extending edges respectively opposed thereby providing a space for receiving the apparatus between the opposed longitudinally extending edges and a space for an operator between the'opposed angularly' extending edges, and a pair of aprons extending downwardly from the outer longitudinal edges of said top portions respectively.

2. A table for use with apparatus of the character described, comprising a pair of longitudinally extending top portions each having an inner edge extending longitudinally a given distance from one of its ends and then at an angle to its opposite end, a plurality of legs supporting said top portions, a plurality of adjustable spacing members connecting and locating said top portions in spaced relationship with their longitudinally and angularly extending edges respectively opposed thereby providing a space for receiving the apparatus between the opposed longitudinally extending edges and a space for an operator between the opposed angularly extending edges, a pair of vertically adjustable arm rests on said top portions respectively adjacent said space for the operator and a pair of aprons extending downwardly from the outer longitudinal edges of said top portions respectively.

THEODORE E. JAGACINSKI.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Brandwen Apr. 2, 1946

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