US2387839A

US2387839A - Press

Info

Publication number: US2387839A
Application number: US542578A
Authority: US
Inventors: Robert P Frost
Original assignee: Individual
Current assignee: Individual
Priority date: 1944-06-28
Filing date: 1944-06-28
Publication date: 1945-10-30
Anticipated expiration: 1962-10-30

Description

Oct. 30, 1945. FROST 2,387,839

PRESS Filed June 28. 1944 3 12 .Roberl P Frost v v 15 lamb rfluwll/ Patented Oct. 30, 1945 UNITED STATES PATENT OFFICE raass Robert P. Frost, Bedding, Calif. Application June 28, 1944, Serial No. 542,578

' 3 Claims. (01. 100-70) This invention relates in general to an improved a press, and in particular the invention is directed to, and it is an object to provide, a relatively light duty press adapted for general utility, mechanical pressing operations in garages, repair shops, machine shops, or the like, where a. heavy-duty press is unnecessary.

Another object of this invention is to provide a general utility press, as above, which is simple in structure, inexpensive to manufacture, and employs a conventional hand actuated hydraulic jack as the power means.

An additional object of the invention is to embody, in the press, a novel form of vertically adjustable work supporting bed whereby the press, which has limited vertical movement of the pressing head, can be adjusted to accommodate work of substantial variance in height.

It is also an object to provide a press which is exceedingly practical and eflective for the purpose desimed.

In the drawing similar characters of reference indicate corresponding parts in the several views:

Figure 1 is a side elevation of the press.

Figure 2 is an end elevation of the press.

Figure 3 is a cross section taken immediately above the work supporting bed.

Referring now more particularly to the characters of reference on the drawing, the press comprises a frame which includes a floor supported base i from which a pair of relatively widely spaced end posts 2 upstand in rigid relation; the end posts 2 each comprising a pair of flat plates 3 disposed in spaced but parallel facing relation. The plates 3 are set edgewise relative to the ends of the press.

At their upper ends the posts 2 are connected by a rigid, horizontal top beam 6, and a flat, work engaging head 5 is disposed horizontally below top beam 6 in symmetrical relation thereto, and centrally between the end posts 2. Guide rods 6 are fixed on and upstand from the head 5 adjacent the corners thereof, said guide rods projecting through vertically elongated guide sleeves 7 formed on the top beam B; one pair of guide rods being disposed on one side of the top beam and the other pair on the other side of said beam. Tension or pull-back springs 8 connect between the corners of the head 5 and corresponding An elongated, open rectangular frame, indi- I cated generally at II, is disposed horizontally below the head 5 with the end posts 2 projecting in guiding relation through opposite end portions of the frame II, as clearly shown in Fig. 3. The frame i 1 includes horizontally alined side beams 12 of channel iron, which beams are disposed on edge whereby the upper flanges of said beams form a work supporting bed. The side beams I! are connected by end beams i3 to complete the frame H. The frame it is supported, in vertically adjustable relation to the end posts 2,

' by means of cross pins to which engage in transversely alined, outwardly opening notches I5 formed in the plates 3 of each post; there being matching vertical rows of said notches in the plates of each post. The cross pin it corresponding to each post is of a length to project beyond both sides of the post whereby to engage and support the frame H from beneath; the pins It always being adjusted to the same elevation so as to maintain the frame ll horizontal.

When the press is in use the work is supported on top of the side beams l2 for engagement by the work engaging head 5 upon downward movement of the latter. If desired, the head 5 may include a centrally disposed, downwardly projecting push-out pin I6, preferably removable from the head 5.

As the work supporting bed comprises spaced side beams I: work with an axially projecting portion, as for example a wheel i1 having a shaft i8 projecting therefrom, as shown in dotted lines in Fig. i, can be supported effectively from said bed for engagement of the head 5 with such work.

In the illustration as in Fig. l the shaft l8 will be engaged by the head 5 upon downward movement of the latter and will be pressed downwardly through the wheel H; the spacing of the side beams. I2 permitting the lower portion of the shaft to depend without obstruction and fo downward movement. I

- claimas new anduseful and desire to secure by Letters Patent is: a

1. A press comprising an upstanding frame including a top beam, a work supporting bed mounted on the frame in spaced relation below the top beam, a work engaging head disposed between the top beam and work supporting bed, guide rods projecting upwardly from the head, guide sleeves on the top beam through which said rods slidablyextend, a pull-back spring between the top beam and head, and a hand actuated jack engaged between said head and top beam.

2. A press comprising an upstanding frame including a top beam, a work supporting bed mounted on the frame in spaced relation below the top beam, a work engaging head disposed between the top beam and work supporting bed, guide rods projecting upwardly from the head, guide sleeves on the top beam through which said rods slldably extend, a. pull-back spring between the top beam and head, and a hand actuated jack engaged between said head and top beam; said head being rectangular and said rods being disposed adjaeent the corners thereof.

3. A press as in claim 2 including a pull-back spring connected between the top beam and head at each corner of the latter; said springs being parallel to and adjacent corresponding rods.

ROBERT P. FROST.