US2609745A

US2609745A - Machine press

Info

Publication number: US2609745A
Application number: US669692A
Authority: US
Inventors: Robert M Cook
Original assignee: Individual
Current assignee: Individual
Priority date: 1946-05-14
Filing date: 1946-05-14
Publication date: 1952-09-09
Anticipated expiration: 1969-09-09

Description

Sept. 9, 1952 R. M. cooK MACHINE PRESS Filed May 14, 1946 OF F WWWMQPW 1N f MM M S l/ m m@ mw m Nv mm mm mm w@ @m n u l vm ,3 n i hmm mmm ww.

INVENTOR. R. M. COOK ATTORNEY Patented Sept. 9, 1.952

UNITED" STATES l PATENT .OFFICE Y asesinas-Ff e MacniNE Paese 1RobertM;CookgTuscumbiag-Ala. appuesuonnayfm,194s,sfeiaina'cacer f I these are all specialized and expensive machines of limited utility. Such machines Varr-,ff'economically unavailable tothe smaller shops and garages because theamount of work ,requiring a press is not sufficient to` justify the cost of a conventional arbor press and the amount of spaceit" occupies. `.It is therefore the present i claims lol. `100g-eten i nesting' the: adjustable practice with owners' of smaller shops and garages to carry their press work to a larger shop where a press is available. .This results in a large amount of `losttime and additional expense.

` It isthereforea'mong the objects of the presentfinvention to provide an improved machine press of economical construction which requires a minimum amount ofv space and in which the more expensive components are standard units that have utility in addition to their use as press l components.

A further object resides in the provision of an improved power operated machine press in which thepower components, such as the electric driving motor, are useful in capacities other than as press components and may be used for other purposeseither while attached to the press Vor when removed therefrom.

Another object resides in the provision of a durable andeconomical machine press component which may be operativelyassociated with other components of conventional shop or garage equipment to provide either a manually operated `or power operated machine press.

A'further object of the invention is to provide a simple, inexpensive, press of light weight,` which may be used withor without its source of power, and its source of power may be yoperated independently of the press.

vlurtherjobjects and advantages of the invention will be apparentfrom the following description taken in conjunction with the accompanying drawings, wherein:

Fig. 1 `is a side elevational view of the entire machine;

Fig. 2 is an end elevational view of the upper portion of the machine;

Fig. 3 is a partial fragmentary elevational view partly in section showing theadiustable link conhandle; and,

jack; i

e Il isa sectiontaken -on line 4-4 of Fig. 3 showing the ball and socket joint in the jack;

' Fig. 5 Yisa section online E-Sof Fig. 3.

With continued reference to the drawings and particularly'to Fig. 1, a rigid base or table top It is supported by suitable means such as legs Il, disposed one at each corner of the substantially rectangular base. In order to reinforce the support, the two `legs at each end of the base may be securedtogether by a suitable tie member in the form of `an, angle iron I2. The

base IIIV is formed ofsuitablestructural mem-` hers, such as deep webV I beams and has secured thereto an upright standard I3, which maybe' conveniently provided by utilizing two channel irons disposed backfto back. The lowerends of `the channel irons rest upon the I beams ofthe together flange to ilangeand welded or otherwise rigidly secured at one end to the upper end of the standard I3. A shaft I6 is slidably mounted in a journal Il secured in the outer endlof the arm land is connected through suitable means such `as link I8, pivot pins I8 and collar I9 with a looped "spring 25J which resiliently urges the shaft I6 upwardly lrelative `to the arm It. The collar` Hijs adjustable lengthwise of the shaft and is held in adjusted position by suitable means such` as the wing nut `set screw 2l. Fixed on the lower endof the shaftl I G there is a collar 22 which is detachably secured to a` press head 23. Various press heads maybe attached to the collar 22 to accommodate the press to the shape of any 4particular part on which it is desired to exert pressure by the machine.

mediate itsl length, to the standard I3. This fulcrum may conveniently be provided by placing a U-shaped clip or strap 2S over the lever and providing it with apertured end portions extending below the lever through which extends a pin 21 which also extends through a suitable aperture in the standard I3. e

`The lever 25 may be `conveniently provided by welding together two pieces of channel iron placed with the edges of their anges in contact. At one end the lever 25 is tapered, as indicated at 28, and the lower 'flanges of the channel [eccentric to a hydraulic members are cut away to permit the shaft I6 to pass therethrough. A pair of

pressure pads

29 and 30 are secured to the under side of the lever and rest upon abutments formed by the top of the collar 22, one at each side of the shaft I6. These pads are curved on their bottoms to provide a rolling and sliding contact with the top of the collar as the lever swings about the fulcrum 21. i n

At its opposite endV the lever 2 5 has secured thereon a U-shaped clip or strip 32 having downwardly projecting apertured end portions cure a saddle 34 to the lever end.

It is obvious from the description so far that upward pressure on the saddle 34 will swing the lever about the fulcrum 21 and force the collar that shaft I Aextends well above the lever 25 andV arm I 5, and shaft I6 is free to move downwardly relative to said lever whereby the top of said shaft may be struck to exert an additional or an independent force to the work.

A conventional hydraulic jack 35 is placed on the top of the base I0 at the corresponding end of lever 25 and the adjustable stern 36 is moved until its upper end contacts the saddle 34. The jack handle 31 extends diagonally across the base lil and terminates at one side of the base intermediate the length thereof. United States patent toV Shannon, No. 1,990,004, discloses a jack of this'type withl the conventional piston and valves for raising and lowering the same.

A belt pulley 38 is rotatably supported below the base bysuitable bracket 39 provided at its lower end with a journal for the pulley shaft V4I). An adjustable length link 4I is operatively connected at its lower end to the pulley 38 and at its upper end to the outer end of the jack handle 31. The link 4I is rendered adjustable Vby the screw threaded connection between the lower portion and upper portion thereof. The connection between llink 4I and handle 31 is preferably provided by aball and socket connection held in operative position by suitable means such as the screwplug ft2 engaging a block 10 which engages a ball 1I which engages another block 12 which is urged outwardly by a spring 13; by removal of screw plug 42 the link can be readily disconnected from the handle and the handle operated manually when desired. This type of connection is conventional and is commonly employed in automobile steering connections and in shock absorber links. The connection between the link 4i and the pulley 38 may conveniently include a radial slot 44 in the pulley which receives a pin bolt 43 rotatably connected with the lower end of the link. The pin may be adjusted along the length of'the slot by releasing nut 14 and moving bolt fl3`to vary the effective lever arm between lthefaxis of the pulley shaft and the axis of the bolt 43, thereby varying the force appliedto the jack handle upon rotation of the pulley.

A bracket 45 is secured to the end of the support or base I0 adjacent the pulley 38, which bracketv may conveniently comprise a generally horizontal table portion 46 and inclined supporting brackets 41. A drill press, generally indicated at 48, is mounted on the support 45 in Athrough which a pin 33 extends to pivotally seposition.

4 a manner such that it is completely operative as a drill press at any time when it is desired to operate the machine press. This drill press includes a flat base 49 supported at one side thereof, an upwardly extending stem or standard 50 upon which is slidably mounted a bracket 5| carrying the electric motor 52. A handle 53 is pivoted intermediate its ends on the bracket 5I for moving the bracket up and down the standard 50, the handleP being connected to the lbracket through suitable means such as a link connected to the lower end of the handle and to the collar 54 which may be adjustably fixed on the standard 50. Compression spring 55 is provided to normally maintain the bracket 5I in uppermost When it is desired to drive the machine press, a pulley shaft 56 is secured at its upper end in the drill chuck 51 of the drill press and passes downwardly through a suitable opening in the base 4S. The lower' end of the shaft 56 is supported in a suitable bearing 58 which may be secured to the brackets `41 and carries on its end portion below the bearing 58 a belt pulley or sheave 59. A belt 6U connects the pulley 59 with the jack operating pulley 3S. VWith this arrangement, when the motor switch 6I is operated to energize the motor the drill press motor drives the pulley 38, which in turn operates the link 4I and the jack handle 31 to actuate the pump of the hydraulic jack. Y

When the jack is provided with a conventional reversing control 32 an'extensi'on 63 leads from the control through an apertured collar 64 in the standard I3 to place the reversing control lever 65 in convenient reach of a person operating the machine press. f

It will be obvious to those skilled in the art that various changes may be made in the invention without departing from thel spirit and scope thereof and therefore the inventionis not limited by that which is shown in the drawings and described in theV specification but only as indicated in the appended claims.

What is claimed is:

l. A machine press comprising a base; an upright standard secured at its lower'end to said Y base; a lever fulcrumed intermediate its ends on said standard; a generally horizontal arm secured to the top of said standard and extending along said lever substantially to the corresponding end thereof; a substantially vertical shaft slidably supported in the outer end. of said arm and extending past the corresponding end of said lever; a collar on said shaft below said lever; pressure pads on said lever contacting the top of said collar; a press head detachably Ysecured to the lower end of said collar; a jack on said support adjacent the opposite end of said lever; a saddle on said` opposite end portion of the lever operatively connecting the'leverwith the jack; a pulley supportedv on said base and operatively connected with said jack; and a motor driven machine associated with said base adjacent said pulley and drivingly connected'with said pulley whereby operation of said motor will Voperate said jack and said verticalvshaft. 'Y l 2. A machine press as defined in claimV l'wherein the connection between said pulleyl'and said jack is disconnectable for manual operation 4of the jack. I

3. A machine press as defined in claimA l wherein the connection between said pulley and said jack is adjustable to vary the drive ratio between said motor and said jack,

4. A machine press comprising a base, a standard positioned intermediate the ends of said base and extending upwardly from and secured to said base, a lever pivotally mounted intermediate its ends on said standard, an arm extending toward one end of said lever mounted on said standard above said lever, a shaft slidably mounted in the free end of said arm for movement toward and away from said base, a collar mounted 0n said shaft below said lever whereby said collar moves downwardly when said one end of said lever is moved downwardly, and a conventional lifting jack positioned on said base and engaging the other end of said lever for raising said other end of said lever and thereby forcing said shaft downward to exert a force toward said base, the upper end of said shaft extending above said arm and said lever.

5. A machine press comprising a base, a standard positioned intermediate the ends of said base and extending upwardly from and secured to said base, a lever pivotally mounted intermediate its ends on said standard, an arm extending toward one end of said lever mounted on said standard, a shaft slidably mounted in the free end of said arm for movement toward and away from said base, a collar mounted on said shaft below said lever whereby said collar moves downwardly when said one end of said lever is moved downwardly, and a conventional lifting jack positioned on said base and engaging the other end 0f said lever for raising said other end of said lever and thereby forcing said shaft downward to exertl a force toward said base, the upper end of said shaft extending above said arm and said lever.

6. A machine press comprising a base, a standard positioned intermediate the ends of said base and extending upwardly from and secured to said base, a lever pivotally mounted intermediate its ends on said standard, an arm extending toward one end of said lever mounted on said standard, a shaft slidably mounted in the free end of said arm for movement toward and away from said base, an abutment on said shaft below `geom/irs said lever and engageable with said one end of said lever whereby said shaft moves downwardly when said one end of said lever is moved downwardly, a collar adjustably mounted on said shaft, and spring means reacting between said arm and said collar for urging said shaft upwardly.

7. A machine press comprising a base, a standard positioned intermediate the ends of said base and extending upwardly from and Secured to said base, a lever pivotally mounted intermediate its ends on said standard, an arm extending toward one end of said lever mounted on said standard, a shaft slidably mounted in the free end of said arm for movement toward and away from said base, an abutment on said shaft below said lever and engageable with said one end of said lever whereby said shaft moves: downwardly when said one end of Said lever is moved downwardly, a hydraulic lifting jack for moving the other end of said lever upwardly, a motor, and adjustable driving connections between said motor and said jack for varying the. drive ratio between said motor and jack.

ROBERT M. COOK.

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

UNITED STATES PATENTS Number Name Date 189,277 Smith Apr. 3, 1877 1,165,825 Wood Dec. 28, 1915 1,755,403 Manley Apr. 22, 1930 1,855,434 Vickers Apr. 26, 1932 1,925,236 Doyle Sept. 5, 1933 1,969,408 Kramer Aug. 7, 1934 2,019,353 Lower Oct. 29, 1935 2,034,605 Carman Mar. 17, 1936 2,122,316 Ganio June 28, 1938 2,420,910 Richards May 20, 1947 FOREIGN PATENTS Number Country Date 598,479 France Sept. 28, 1925