US1706088A

US1706088A - Press

Info

Publication number: US1706088A
Application number: US167061A
Authority: US
Inventors: Harry F Vickers
Original assignee: VICKERS Manufacturing Co
Current assignee: VICKERS Manufacturing Co
Priority date: 1927-02-09
Filing date: 1927-02-09
Publication date: 1929-03-19
Anticipated expiration: 1946-03-19

Description

March 19, 1929,

H. F. VICKI-:Rs 1,706,088

PRESS Filed F'eb= 9, 1927 Patented 3Q,

HARRY El. VGERS, @El LGS. ANGELES, CALFORNIA, SSGNOTJ T0 VICKERS EEANU= EAGTUNG- COMPANY, @F 'LOS NGELES, CALEE'ORNEA, CRQQRTEON 0F FORM.

RFSS.

.application filedtebruary 9, 1927. Serial No. l.

This invention has to do with a press, :and has particular reference to a hydraulic press.

An object of my present invention is to provide a simple, practical and edective hydrau- -lic press, suitable for use in garages, machine shops and other like places.

1t is another object of this invention to provide a hydraulic press which can be easily and conveniently adjusted to accommodate work lo of various sizes.

A. further object of my present invention is to provide a simple, edective and inexpensive form and arrangement of parts for a hydraulic press.

rlhe various objects and features of my present invention will be best and more fully understood from the following detailed description of a. typical form of the invention throughout which description reference is had to the accompanying drawings, in which:

Fig. 1 isa front elevation of the press with certain parts broken away;

Fig. 2 is a side elevation of the press;

Fig. 3 is an enlarged detailed sectional view taken substantially as indicated by line 3-3 on Fig. 2;

Fig'. 4 is a sectional view taken as indicated by line 4-4 on Fig. 3; and

Fig. 5 is a sectional view taken as indicated by line 5 5 on Fig. 1.

The press provided by my present invention includes, generally, a frame 10, a work carrier 11, supported by the frame, a cylinder 12 mounted on the frame, a piston 13 operable in the cylinder, a ush rod or stem 14 attached to the piston, a uid reservoir 15, a valve controlled connection 17 between the reservoir and cylinder, pump means 18 for receiving fluid from the reservoir and pumping it into the cylinder, operating means 19 for the pump, and means 40 for manually operating the push rod 14.

The frame l0 may be constructed in various manners to suit various operating conditions, it being preferred to form it generally of two vertical ends 2O and head or top beams 21, which extend between the upper ends of the ends 20. The ends 20 ofthe frame may be formedof channel irons of suitable size, and,

in practice, it is desirable to connect the lower parts of th ends by suitable brace beams 22. urther, seat or base parts 23 may be provided at the lower ends of the ends y20 to form effective supports for the apparatus. The

20. 1n the preferred construction, the work carrier includes two beams 25 arranged at the front and rear sides of the ends 2O to be supported on pins 24 arranged through openings 25a provided in the flanges of the end beams 20. The beams 25 are connectedtogether adjacent their ends by means of bolts 26 and are spaced apart to properly fit the ends 2O by means of spacing sleeves 27 carried on the bolts A26, as clearly shown in Fig. 5 of the drawings. 1n accordance with my invention, I provide several sets of openings 25EL in the flanges of the ends 20, and l space one of the bolts 26 at each end of the carrier 11 inward from the ends of the beams 25 so that the carrier can be tilted to position, such as is indicated in dotted lines in Fig. 2, in moving it from one position to another on the ends 20. To vary or change the position of the work carrier, the pins 24 are arranged in different sets or holes 25a, it being preferred in practice to adjust one end of the carrier at a time, as indicated by dotted lines in Fig. 1, as

such operation can be easily performed by one man without danger of losing control of the carrier and without undue effort.

The cylinder 12 is mounted in an upright or vertical position between the top beams 21 of the frame. The cylinder casting may be provided at opposite sides with fiat faces 30 to engage the beams 21, and, in accordance with my invention, I provide lugs or projection 31 on the sides of the cylinder to engage under the beams 21 in the manner shown in Fig. 4 of the drawings. The cylinder may be secured in position between the beams 21 by means of cap screws 32 arranged through the beams 21 and into suitable tapped holes provided in the faces 31. The cylinder is closed at its upper end by an inte ral head 34 and at its lower end by a remova le head 35.

The piston 13 is slidably mounted in the cylinder and includes a body 36, a packing member 37 and a retaining nut 38, which holds the packing member in position withy reference to the body. The parts of the piston are assembled on a lscrew threaded stud or projection 39, provided on the end of the push rod 14. The packing member 37 may be a 41 carried by the hea-d 35 at the lower end of the cylinder, a pinion 42 on the shaft to mesh with teeth 43 formed on one side of the push rod, and an operating handle 44, provided on the shaft 41 at the exterior of the head. The teeth 43', provided on the push rod, form a rack with which the pinion 42 meshes so thabrotation of the pinion through yoperation of the handle 44 causes vertical movement of the push rod.

ln accordance with the arrangement provided by my invention, the fluid reservoir 15 is formed above or at the top of the cylinder 12. ln the preferred construction, the side wall of the reservoir is integral with the cylinder 12 and continues or projects upwardly from the cylinder so that the top head 34 of the cylinder forms a bottom for the reservoir. In practice, l provide a suitable cover or closure 45 for the top of the reservoir.

The connection 17 between the reservoir and the upper end of the cylinder preferably includes a port 46 and a valve 47 for controlling flow of Huid through the port. A suitable enlargement of projection 48 is provided on one side of the structure formed by the cylinder and reservoir at the point of connection between the cylinder and reservoir. The port 46 extends through the projection 48 and has one end in communication with the lower part of the reservoir and the other end in communication with the upper end of the cylinder. The valve 47 is rotatably carried in an opening 49 formed transversely through the projection 48 to intersect the port 46. The valve has an opening 50 through it, adapted to be moved into and out of register with the port 'to open and close theconnection between the reservoir and cylinder. When the opening 50 in the valve is out of register with the port 46, as shown in Fig.

' 3, the connection between the reservoir and cylinder is closed. The valve has a stem 51 extending from the projection 48 and, in practice', the stem is handle 52.

The pump means 18, provided for pumping iuid from the reservoir into the upper end of the cylinder 12, may include a cylinder formed or provided on one side of the unit formed by the cylinder 12 and reservoir 15,

provided with an operating 'Vit plunger 71 operable in the cylinder 70, a

voir with the upper end of the cylinder 70, and a valve controlled port 73.7 connecting the upper end of the cylinder 12 with the upper end of the cylinder 70. The cylinder 70 is preferably formed or cast integral with the reservoir 15 and cylinder 12 and is formed so that its axis is parallel with that of the cylinder 12. The plunger 7l freely fits the cylinder 7 0 and projects from the lower end of the cylinder through a suitable packing gland 74. The port 72 connects the lower end of the reservoir 15 with the upper end of the cylinder 70 and has a. check valve 76 in it to admit fluid from the reservoir to the cylinder. The port 73 connects the upper end of the cylinder 70 with the upper end of the cylinder 12, and has a check valve 7 3a in it to admit Huid from the cylinder 70 to the cylinder 12. The plunger is adapted to be reciprocated in the cylinder so that Huid is drawn into the cylinder 70 past valve 76 and is then forced out of the cylinder 70 past the valve 73E* and into the cylinder 12. It will be noted from inspection ofthe drawings, that the ports 72 and 7 3 are formed in or through the casting or` body of the parts above described, making it unnnecessary to provide special pipes or fittings to make these connections.

The operating means 19, provided for actuating the ump, preferably includes an operating sha t 80 carried by the frame l0, an operating lever 81\onv the shaft, and a connection between the shaft and the plunger whereby rotation or operation of the shaft causes reciprocation of the plunger. The

shaft 80, in accordance with my preferred arrangement, is located between the top beams 21 of the frame and has one end carried in a bearing 84 formed on. the side of the cylinder 12 and has its other end projecting through one of the end beams 20. The operating Ilever 81 is fixed onthe outer or projecting end of the shaft 80, in the manner clearly shown in Fig. 1 of the drawings. The operating connection between the shaft 80 and plunger'71 preferably includes a crank arm-90 xed on the shaft 80, and a connecting rod 91 connecting the crank arm and plunger. In' the arrangement shown in the drawing, a pin 92 pivotally connects one end lof the connecting rod with the crank arm 90,

cal advantage over the plunger 71, particuve controlled port 72 connecting the reserfluid Will be pumped into the cylinderv12 at' a very high pressure. A very noteworthy feature of my invention is .the unitary construction formed by the cylinder 12,reservoir 15, valve cont-rolled connection 17 between the reservoir` 15, and the pump 18.' The main portion of these parts beingin the form of a single casting, the device is made Very simple and compact. Further, this particular arrangement and formation of parts makes the device very simple and inexpensive to manufacture and assemble, and makes it simple and dependable in operation. V

L Having described only a typical preferred form of my invention, I do not Wish to limit myself 'to the specific details set forth, but W1sh to reserve to myself any changes or variations that may appear to those skilled in the art or fall within the scope of the following claim.

Having described my invention, 1 claim:

A press,`including a frame having ends and a top extending between the ends, and a unitary structure carried by the top including a cylinder, apiston in the cylinder, a push rod connected with the piston and projecting downwardly from the cylinder, means for manually operating the piston, including a pinion meshing with teeth on the rod and .a handle for operating the pinion, a

-Huid reservoir formed integral with the cylindei` above the cylinder, a valve controlled fluid connection between the reservoir and cylinder, and a pump for pumping fluid from the reservoir into the cylinder including a pump cylinder, formed integral with said cylinder, a plunger extending into the pump cylinder, a valve controlled connection for admitting iuid from the reservoir into the head end of the pump c linder, and a valve controlled connection or conducting fluid from said end of the pump cylinder to the upper end of the first mentioned cylinder.

1n witness that I claim the foregoin I have hereunto subscribed my name this th day of December, 1926.

s HARRY F. VlCKERS.