US986496A - Press. - Google Patents

Description

[PI 3. PALMER & J P. SMITH.

' PRESS.

- APPLICATION FILED MQAYS, 1909.-

986,496. Patented Mar/14,1911 1 2 SHEETS-SHEET 1.

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1-". H. PALMER a; J. P. SMITH. 7 I PRESS.

APPLIOATIQN TIL ED MAY 8, 1909.

986,496. Patented Mar.14, 1911. z BHEETS-SHEET 2.

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FREDERICK H. PALMER AND JOHN P. SMITH, J3 CLEVELAND, OHIO.

PRESS.

Specification of Letters Patent.

Application filed May 8, 1909.

Patented Mar. 14, 1911. Serial No. 494,902.

Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements 1n Presses; and

v we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

This invention relates to improvements in presses and particularly veneer presses.

The object of the invention is the provision of a press which is powerful, strong and durable, which is accessible so that unobstructed access can be had to the table or bed plate for placing thereon work 01' any size, in which the pressure can be quickly applied and in which the pressure screws are readily adjustable so that their position can be altered to apply pressure at different points.

The main portion of the press including the arms or cross beams which carry the pressure screws and the supporting or foundation members which carry the table or bed plate are formed of structural steel, preferably channel bars which are arranged in pairs back to back and are securely bolted together with sufficient space between the same for receiving certain parts as will be explained, and the remaining parts of the.

press are likewise constructed with the view of securing great strength and rigidity.

The arms which carry the presssure screws are mounted upon standards preferably heavy bolts in a manner such that they may be readily swung to one side of the table in a horizontal direction so that work of any size, such as doors, can be readily and conveniently placed thereon without loss of time. The supporting bolts upon which the swinging arms are mounted pass between the channels forming the arms at one end, and the opposite ends of the swinging arms are normally free but may be locked to the corresponding ends of the cross beams below the table or bed plate preparatory to applying pressure to the work, by means of locking members which are preferably in the form of long I-rods which can be readily inserted between the channels ing the flanges of the channels.

The pressure screws themselves engage flanged nuts which are mounted between the channels of the swinging arms and can be readily shifted longitudinally thereof so that the points of application of pressure to the work may be readily changed.

The invention may be further briefly summarized as consisting in certain novel details of construction and combination of parts hereinafter set forth in the following description, drawings and claims.

For a better understanding of our invention reference is had to the accompanying drawings, in which- I Figure 1 is a side elevation of a veneer press constructed in accordance with our invention, showing one of the arms carrying one series of the pressure screws swung to one side of the table, and showing the remaining arms and pressure screws in clamping position. Fig. 2 is a transverse section substantially along line 22, Fig. 1. Fig. 3 is a partial longitudinal sectional view taken substantially along the line 83, Fig. 2. Fig. 1 is a top plan.

Referring now to the figures of the drawings 10 represents the table or bed-plate which is preferably formed from a plate of rolled steel and receives the work or stock 11 to which pressure is to be applied. This table is supported on a number of crossbeams 12 which in turn are mounted on transversely arranged beams 13. The beams- 12 are arranged in pairs, and as shown, there are four pairs of these beams. The said beams 12 are arranged to project at each side of the bed-plate 10 and at one side thereof the end pairs project beyond the middle pairs, for a purpose that will appear later. The beams 12 of each pair of beams are spaced apart a short distance, and at one end are secured together by means of bolts 14: which are provided with sleeves 15 to maintain the proper spacing between the beams and at the opposite end the beams are secured together by bolts 18 and a spacing device 19 is mounted between the ends and is held in place by the said bolts 18. These spacing devices 19 also serve both as seats for the locking bar and as means for alining the same, as will be hereinafter more clearly described.

A vertical standard 20 is secured between each pair of beams 12, at one end thereof, which in the present case is in the form of a bolt and is held in position by means of a head 21 thereon which engages the under side of the beams and a rigid collar 22 which engages the tops of the beams. Mounted upon the upper ends of these bolts or standards 20 are swinging arms 23 arranged the same as the cross beam upon which the table 10 rests. Each arm is formed of a pair of channel beams which are secured together at one end by bolts 24 and spacing sleeves 25 upon the bolts, and at the other end by bolts 26 and a spacing device 27 Each standard or supporting bolt 20 passes between the channels of each arm 23 and is held in position between a rigid collar 28 upon which the arm rests and a nut 29 on the end of the bolt 20. The bolt 20 passes loosely between the channels of the arms so that the arms may be readily swung horizontally to the rear of the table, as is shown at the right hand side of Fig. 1 and Fig. 1.

As the standards 20 are mounted at the ends of the cross beams 12 the standards nearest the center of the bed-plate 10 are closest to the side of the bed-plate and the remaining standards at each side thereof are spaced at an increasing distance from the side of the bed-plate, the object of this an rangement is to permit the swinging arms which are supported by said standards to be swung back without coming in contact with the adjacent standards, which would be the case if the said standards were in line and would result in impeding or preventing the arms from being swung entirely clear of the bed-plate. With this construction the press is rendered accessible and large work such as doors can be conveniently placed on the table without interference of the adjusting screws which will be explained.

Each swinging arm 23 carries a number of vertically adjustable pressure screws 30 which are provided at their lower ends with clamping plates 31 and with transverse studs or lever arms 32 to facilitate the manipulation and turning of said screws. These adjusting screws 30 are mounted in nuts 33 which are located between the channels and are provided at the top and bottom thereof with laterally extending flanges 34 which engage the flanges of the channels and hold the nuts in position. The nuts are of a size such that they may be readily shifted longitudinally of the channels so that the position of the adjusting screws can be adjust-ed when it is desired to change the application of the pressure on the work.

The normally free ends of the swinging arms 23 can be secured to the cross beams 12 when it is desired to tighten the clamping screws by means of I-shaped locking rods 36. The upper end of each locking bar 36 is inserted in a seat 27 in the spacing device 27 and engages a pair of lugs 27 formed on the spacing device and the lower end of the bar is inserted in a seat 19 formed in the spacing device 19. This arrangement secures the absolute alinement of the arms 23 and the corresponding cross-beams 12, thereby preventing any shifting of the arm when the.

screws are clamped into position.

It will be seen that the press described above is not only accessible, strong and durable but the pressure can be quickly applied to the work for the reason that the latter can be placed upon the table without necessitating the screws being raised as is necessary in the presses generally employed, and consequently the screws can be adjusted approximately before the glue is applied and after the work is placed in position and the arms are swung to operating position and locked in place by the locking bars pressure can be applied by only a few turns of the pressure screws.

that we claim is,-

1. In a press, a horizontal table or bedplate, a plurality of cross-beams supporting the same, said cross-beams being arranged in pairs, standards extending vertically at one side of said bed-plate from the ends of each pair of crossbeams, swinging arms mounted on the upper ends of said standards, each of said arms being formed of a pair of beams spaced apart, pressure screws carried by said arms and means for locking the free ends of each arm to a corresponding pair of crossbeams, said means consisting of an I-shaped bar the ends of which are removably mounted between the beams of said pairs of crossbeams and the beams of an arm.

2. In a press, a horizontal table or bedplate, a plurality of cross-beams supporting the same, each cross-beam consisting of a pair of channels arranged back to back and spaced apart, a plurality of bolts extending vertically upward between the channels of the cross-beams at one side of the bed-plate and secured therein, swinging arms mounted upon the upper ends of said bolts, each arm consisting of a pair of channels arranged back to back and spaced apart, nuts movable longitudinally of said arms, pressure screws carried by said nuts, and a bar for locking the free end of each arm to a corresponding pair of cross-beams, said means consisting of an I-shaped bar the ends of which are removably mounted between the beams of said pairs of cross-beams and the beams of an arm.

.3. In a press, a horizontal table or bedplate, a plurality of cross-beams supporting the same, each cross-beam being formed of a pair of channels, standards extending vertically from the ends of said cross-beams, said standards being staggered in respect to the supporting table or bed plate, swinging arms mounted on the upper ends of said standards, each of said arms being formed of a pair of channels, pressure screws carried by said arms, and means for locking the free ends of said arms to said cross-beams consisting of an I-shaped bar extending between the channels of said cross-beams and said arms.

4. In a press, a horizontal bed-plate, a plurality of cross-beams supported in the same, said cross-beams being arranged in pairs, standards extending vertically from the ends of each pair of cross beams, a seatforming member mounted at the opposite end-of each pair of cross-beams, swinging arms mounted on the upper ends of said standards, nuts movable longitudinally of said arms, pressure screws carried by said nuts, a seat-forming member mounted in the free end of each arm and a series of locking bars, each bar having one end adapted to fit' in a seat in a swinging arm and the other end adapted to fit into the seat in the corresponding pair of cross-beams, for the purpose set forth.

In testimony whereof, we sign the foregoing specification in the presence of two' witnesses.

FREDERICK H. PALMER. JOHN P. SMITH.

Witnesses VICTOR C. LYNCH, N. L. MGDONNELL.

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

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