US1786847A - Mechanism for operating upon metal parts of automobiles and the like - Google Patents

Description

Dec. 30, 19300 G. L. .HUNT 1,786,847

MECHANISM FOR OPERATING UPON METAL PARTS OF AUTOMOBILES AND THE LIKE Filed March 1. 1929 v5 Sheets-Sheet. 1

650. 1.. HUNT INVENTOR.

ATTORNEY Dec. 30, 1930. L, H NT 1,786,847

- MECHANISM FOR OPERATING UPON METAL PARTS- OF AUTOMDBIIJES AND THE LIKE Filed March 1. 1929 s Sheets-Sheet. 2

Z6 Z6 .26 29 Z8 FIE-E mu FIE' '4 @760. 4. HUNT INVENTOR.

MM MM ATTORNEY Dec. 30, 1930. G. L. HUNT 1,786,847

MECHANISM FOR OPERATING UPON METAL PARTS OF AUTOMOBILES AND THE LIKE Filed March 1. 1929 3 Sheets-Sheet. s

TIE-a 650. A HUN? INVENTOR.

ATTORNEY Patented Dec 30, 1930 UNITED STATES PATENT OFFICE GEORGE L. HUNT, OF DAVENPORT, IOWA, ASSIGNOB TO GEO. I. HUNT AUTOMOTIVE EQUIPMENT 00., OF DAVENPORT, IOWA, A CORPORATION OF IOWA MECHANISM I'OR OPERATING UPON METAL PARTS OF AUTOMOBILES THE LIKE Application filed larch 1 I I The present invention pertains to means for operating upon metal parts of automobiles and is more particularly concerned with the straightening of disc wheels, axles, and

frame members. Among the objects of this invention are to provide a machine with which metal parts of anautomobile or the like may be straightened; to provide mechanism for the straightening of metal wheels; to provide mechanism for the straightening of axles; to provide mechanism forthe straightening of automobile frame members; to provide improved metal bending mechanism; to provide .mechanism which is capable, with but slight changes, of serving as both wheel straightener and-axle straight-.

ener; and such further objects, advantages and capabilities as will hereafter appear and as are inherent in the construction herein disclosed. My invention further resides in the combination, construction and, arrangement ofparts illustrated in the accompanying drawings and, while I have shown therein what is now considered the preferred embodiment of my invention and a variant of a part thereof, I desire this disclosure to be construed in an illustrative sense and not as limiting the invention.

In the drawings annexed hereto and for1ning a part hereof, Fig. 1 is a lateral elevation of my invention showing thesame in use as a wheel straightener; Fig. 2 is an end view of the constructionshown in Fig. 1; Fig. 3

is a plan view of this construction showing the same in use as an axle straightener; Fig. 4 is a transverse section of the structure. as illustrated in Fig. 3, substantially along the plane indicated by the line 4-4 of said Fig.;

Fig. 5 is an elevation of a tool for use in the twisting of axles, the same being shown on a somewhatv enlarged scale from that illustrated in Fig. 4; Fig. 6 is an elevation of a modified form of this tool; Fig. 7 is a longitudinal section, substantially central, of a modified form of means for applying power to the work; Fig. 8 is an elevation of the structure shown in Fig. 7 taken at an angle of 90 thereto.

Referring more in detail to the annexed drawings, a frame or support designated genthe frame by member 27.

1929. Serial No. 343,732.

erally by the numeral 1 comprises legs 2, braces 3 and channel members 4'tied together at their ends by end pieces 5. The lower flanges 6 of the channels serve as tracks for under-cut members 7 through which pass bolts 8. These bolts also pass through cross bars 9 located below a supporting frame designated generally by the numeral 10 and comprising lower members 11, upper members 12 and side members 13. Extending between the lower members 11 are tubes 14 through which pass bolts 15 which draw the plates or bars 11 against the ends of the tubes 14, making a 'r1g1d frame element. WVhen the nuts on bolts 8 are tightened up against the cross members 9, elements '7, 8 and 9 are rigidly held together with sufficient space between members 7 and 11 so that the latter can be readily moved lengthwise of the supporting frame but will not have sufiicient play to have an undue amountof lateral tipping motion. The lateral ends of the plates 12 are held spaced by means of blocks 16 and, with the blocks 16 and side members 13, are held tightly assembled by means of the bolts '17. Parts 11 to.17, inclusive, constitute a supporting frame or tool holding frame which, as indicated above, is readily slidable longitudinally of the first named frame. In connection with the cross members 12 of the frame 10, there is a block 18 which is held to the plate 19 by means of bolts 20 as is apparent in Fig. 4. These bolts pass through the space between the plates 12 and into the block 18 and are tightened .just enough so that this unit ofthe construction may be readily moved longitudinally of the bars 12. A heavy screw 21 provided with a handle 22 and a transverse opening 23 in which may be placed a cross bar 24, if desired, extends through a screw threaded opening in the block 18 and may be screwed up or down during the operation of the machine which will be described hereinafter.

A pair of brackets25 are mounted upon one end 5 and serve as supporting means for an axle which is clamped against the end of the clamp 26 drawn up by To the opposite end of the support 1 are secured uprights 28 in the form of angles, these uprights being held in place by means of bolts 29 passing through the end member 5. These uprights constitute an anchor for the rod 30 having on its outer end a nut 31 whereby the tension on the rod 30 may be varied. At its inner end'this rod passes through one arm of an angular member 32 whose other arm is perforated and mounted upon a bolt 33. A cross bar 34 is secured to the upper flanges of the channels 4 by means of bolts 35 passing through perforations in these flanges. The cross bar 34 is perforated substantially centrally and has the bolt 33 passing through and secured in said perforation. On this bolt 33 are mounted rim supporting members 36, shown as being somewhat conical in shape. In use, as shown in Fig. 1, the lower member 36 is put in place and the wheel rim 37 mounted thereon. The upper member 36 is then put in place, the member 32 being next put on and then the nut 38 is tightened down to hold the parts in assembled relation. The bolt 30 is then inserted between the u rights 28 and the nut 31 is tightened up so t at the bolt 33 is stayed against the tipping force of the screw 21 when the latter is screwed down against the wheel rim 37. It will be seen from Fig. 1 that a considerable pressure can be exerted against a side of the rim to cause bending of the wheel, when the latter has been accidentally gotten out of true form. It will of course be understood that the wheel may be applied either side up, depending upon which way the same is bent. Also, if it is desired to spread the straightening force over a considerable length of rim flange, a heavy block may be inserted between the screw 21 and the rim. It will also be understood that the block 18 may be adjusted laterally from the axial line of the machine, if desired, this arrangement being shown in Figs. 3 and 4.

In order that this device may serve as an axle or bar straightener, a heavy cross tie 40 is secured to the upper flanges of the channels 4 and has bolts 41 fixedly mounted therein. On these bolts is mounted another cross member 42 which is used to clamp the axle or bar down against the bar 40, as illustrated in Figs. 3 and 4. When using the machine in described in connection with Sheet 2 of the this manner, the rod 30 and connecting member 32 are removed and the cross bar 34, together with the parts supported thereby, may

be removed if desired.

The operation of this constructioih will be drawings. The axle 43 is first placed on the cross bar 40 and then the cross bar 42 is put in place and the nuts tightened down on the bolts 41 until the axle is held rigidly in place. If the axle has been twisted, so that the spindles are not in the same plane, a twisting tool 44, shown most clearly in Figs. 5 and 6, is then inserted through the yoke at the end of the axle with the abutment 45 resting against one side of one arm ofthe yoke and the end 46 resting against the opposite side of the other arm. The frame 10 is then adjusted into the plane of the tool 44, the block 18 being adjusted laterally until the end of the screw 21 can contact with the end of the horizontal arm of tool 44. The crank 22 is then turned to advance the screw 21 until the axle is twisted so that the two spindles will lie in the same plane. It will of course be understood that the tool 44 may be inserted the opposite direction through the yoke of the axle, if the twist is to be made in the opposite direction.

The tool 44a is merely a modification of that shown in Fig. 5 and comprises a normally substantially horizontal part 47 and a substantially vertical part 48. From one corner of this tool extends a hook 49 which may be hooked over one arm of the axle yoke, the vertical part 48 resting against the other arm. A strengthening web 50 is preferably formed between the arms 47 and 48 to prevent accidental breaking of one or the other of these. If the hook is too wide for the axle, as shown in- Fig. 6, a suitable block can be placed between the end of the hook 49 and the arm of the axle yoke so that the tool 44a will be leveled up, as will .be readily understood.

If a bend in a vertical plane is to be formed in the axle or a bar, the same may be placed substantially in the position shown in Fig. 3 and the frame 10 moved to the appropriate place so that the force can be applied in a manner to produce the desired bend at the desired location. If the bend is to be placed nearthe end of the axle, that is, between the yoke and the place of attachment of the spring, the parts will be set up very much as in Fig. 3 except that the screw 21 will bear against the end of the axle in the vicinity of the base of the yoke. If the bend is to be made toward the middle, the frame 10 will be placed appropriately for this purpose. In such use, it will probably be desirable to keep the cross bar 34 in place on the supporting frame.

As a substitute for the pressure applying means of the previously described construction, the structure shown in Figs. 7 and 8 may be provided. As a. matter of fact, this construction" is preferable when considerable pressure' is required. In. this construction an hydraul device 51 is provided with a pair of sepaifiited flanges 52 and 53 between which is a reduced portion 54. Between the flanges 52 and 53, are located the cross bars 12 of the power unit supporting member. The mounting of this device will be understood by reference to Figs. 4, 7 and 8. This hydraulic device has a cylinder 55 within which is located a piston 56, the same having a packin 57 as will be readily understood, This pao 'ng is Ill) '7 2 and has through one wall thereof an open- .of member 51 by means of bolts 63, the con nection of the two being made tight by means of a gasket 64 placed between the bottom of the container 62 and the top. of 'the member 51. This container is provided with the top 65 held in place by any suitable means such as bolts 66. This cover 65 hasa central aperture 67 from which-extends a slot 68 within which the link 69 may swin laterally about its pivot 70 which is suitab y secured to the bottom of the container 62. The cover 65 is also provided with a perforation through which extends the shaft 71 of a valve operatin means. The valve is denoted by the numera ing 7 3 which permits the fluid, preferably oil, to pass from the cylinder 55 out past the ball 74 into the container 62, when the shaft'71 is v screwed backwardly to permit the ball, to be unseated. As is evident from Fig. 7, the valve 1 der 55 to the container 62.

72 is screwed into a tapped opening extending through the bottom of the container 62.

Provided centrally of the bottom of the container '62 is another tapped perforation into which is screwed a reduced end of a pump body 75. This pump has a cylindrical opening through the major portion of its length and in this cylindrical opening is located a piston 76 which may be reciprocated by the handle 77 whichhas pivotal connection with the piston 76 and also with the link 69. As

' the handle is moved up and down, the piston 7 6 also moves up and down causing oil to be pumped from the container 62 into the cylinder 55 where it exerts its pressure against the end of the piston 56. ball- 78 .is spring pressed against its seat in member 75 and ii:- vents the fluid from flowin back from cy This s ring yields under pressure from the iston- 6 and permits the fluid to be force ast the ball and into the chamber 55. A va ve member 79'is screwed into one side of themember 75 and has an opening therethrough connectin the chamber 62 with the interior of thelcylinder. in which thepiston 76 slides. The ball in this valve is pressed against its seat by a spring,

as in the'last, reviously described construction. Remove le seats are provided for the springs in; both instances, as will be clear from the drawings, and. further descri tion thereof is believed unnecessary. It s ould perhaps be that the pump cylinder 7 5;

is braced in position by means of a cross member 80 secured to the top by means of bolts 81. Pins 82 extend into the upper portion of the body 51 of the hydraulic means as is apparent in Fig. 8. Corresponding pins 83 extend into the bottom portion of the piston 55 and springs 84 are connected to the pins 82 and 83'to exert a tension upon the piston 55, tending to draw the same upwardly when the valve 72, 73, 74 is opened.

From the foregoing, it will be seen that the device shown in Figs. 7 and 8 may be substituted for the corresponding device shown in Figs. 1 to 4, inclusive. If such a substitution is made, the operation will be similar to the operation of the other construction. However, when the frame is put into position to operate upon the work,as in Figs. 1 to 4, the screw 60 is turned outwardly until it engages or substantially engages the work. If the valve 72 has not been closed, this will now be done and the handle 77 will be operated to pump the fluid from the container 62 through the valves 79 and 78 into the cylinder 55.

-When this is done, considerable pressure is exerted upon the piston by reason-of the fact that the area'thereof subject to the pressure of the fluid is so many times greater than the area of the face of piston 76. It will therefore be possible to exert much pressure upon the work by a comparatively small amount of force applied to thehandle 77. This construction is merely anothermeans for emplo ing the same principle as that set forth in t a previously described construction but enables a greater-force to be applied to the work for a given amount of force applied to the handle.

- Various other uses for this machine than those illustrated in the present drawings will be obvious to a skilled mechanic and no attempt is therefore madeto set forth all of suchuses. It is of course understood that various departures inay be made from the struc ture described herein, without departing from the spirit ofmy invention as set forth in the appended claims.

Having claim:

1. In a wheel straightening machine, a supporting frame having longitudinal flanges, a second frame transverse to the first frame, mounted on the flanges and slidable thereon, said second frame having a part spaced upwardly from the first frame and extending transversely thereof, a screw extending through said part and operable therein to-exert a downward pressure, and means on the first frame to rigidly support 'ioa now, described my invention, 1

a wheel thereon in position to have pressure holding means on the support designed to rigidly hold the work for the application of force by the power transmitting means, and a hook to be applied to the work and engaged by the power transmitting means whereby force may be applied to the work.

3. In 'a machine of the character described,

- ating said reciprocable member.

4. In a machine of the character described, a support, a supporting frame thereon movable lengthwise thereof, power transmitting means carried by the supporting frame and adjustable transversely of the support, and work holding means on the support designed to rigidly hold the work for the application of force by the power transmitting means, said power transmitting means including hydraulic means for exerting pressure upon the work. I

5. In a machine for the purpose indicated, a Supporting frame, a tool holding frame carried thereby and capable of moving lengthwise thereof, said tool holding frame rising above and extending transversely of the supporting frame, power applying means in the tool holding frame capable ofbeing moved transverselyof the supporting frame toapply power at various points transversely thereof, said last named means comprising a hydraulic means for applying power to the work and resilient means for withdrawing I the movable element of the hydraulic means when it ,is desired to withdraw it.

6. In a machine of the character described, a supporting means having a track thereon, a frame mounted on and capable of traveling lengthwise of the track, said frame rising above and extending transversely of the sup- .t porting means, supporting means on the 50 frame, a screw in said second mentioned supporting means adapted to be operated thereto be operated to move toward or recede from the supporting frame, and work holding means on the supporting frame adapted to hold work while it is being'bent. a

8. y In a metal bending machine, a support, supporting means thereon movable lengthwise thereof, force transmitting means carried by the supporting means and adjust-' by thefirst named support, power applying means carried by the supporting means, said powerapplying means comprising a body member movable with relation to the support and supporting means, said body member having a cylindrical opening in which there is mounted a reciprocable piston, and hydraulic means for actuating saidpiston in one direction.

In witness whereof, I hereunto subscribe my name to this specification.

GEO. L. HUNT.

in to move toward or recede from the first mentioned supporting means, and workholdingmeans on the first mentioned supporting means adapted to hold work while I being operated upon.

7. In a metal bending press, ,a supporting frame having a longitudinal track, a tool holding frame mounted on and capable of traveling lengthwise of the track, said tool holding frame rising above and extending transversely of the supporting frame, pressure applying means in said tool holding frame capable of being moved therein transversely of the supporting frame and adapted lOO

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