US469962A

US469962A - Machine for upsetting tires

Info

Publication number: US469962A
Authority: US
Publication date: 1892-03-01
Anticipated expiration: 1909-03-01

Description

(No Model.)

7 I 2 Sheets-Sheet 1. B. CHAQ-UETTE. MACHINE FOR UPSETTING TIRES.

No. 469,962. I Patented Mar. 1,1892.

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(No Model.) 2 Sheets-Sheet 2.;

E. O HAQUETTE. MACHINE FOR UPSETTING TIRES.

No. 469,962. Patented Mar. 1, 1892;

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UNITE STATES PATENT @FFICE.

EPHRAIEM CHAQUETTE, OF SAN FRANCISCO, CALIFORNIA.

MACHINE FOR UPSETTING TIRES SPECIFICATION forming part of Letters Patent No. 469,962, dated March 1, 1892.

Application filed December 14, 1891. Serial No. 414,907. (No model.) 7

To all whom it may concern.-

Be it known that I, EPHRAIEM OHA UETTE, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in Machines for Upsetting Tires; and I dohereby 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 appertains to make and use the same.

This invention relates to certain new and useful improvements in machines for upsetting wheel tires or axles or strip or bar iron in order to shorten the'same. It is the usual practice when a wheel-tire becomes loose after wear to shorten it in refitting, and this is ordinarily done by cutting and rewelding, though various devices for upsetting without resort to cutting have been proposed.

It is the object of my invention to provide a machine of simple construction, but of great power, adapted to operate either on straight work or upon hoops or tires, according to circumstances; and with this end in view my invention consists in the construction and combinationof elements presently to be de scribed, and then recited in the claims.

In order that those skilled in the art. to which my invention appertains may fully understand its construction and operation, I will describe thesamein detail,reference being had to the accompanying drawings, which for a part of this specification, and in which Figures 1 and 2 show my machine in front elevation, but operating on different kinds of work. Fig. 3 is a section at line y y of Fig. 1, and Fig. 4 a section at line to w of Fig. 1.

The base of my machine consists of a heavy iron plate 1, which may be secured to any fixed object, as the post 2. (Shown in Figs. 1 and 2.)

3 and 4 are levers, one of which appears in section at Fig. 3, and 5 are heavy bolts on which said levers are fulcrumed, as shown at said sectional figure. An extension 6 from each lever is guided in a recess 7 in the baseplate. Each lever at its top is furnished with a housing 8, in which is seated and adapted to slide a head or block 9, movable by means of a screw 10, having a suitable hand-wheel and threaded through the top of the housing.

To the lower end of plate 1 and at one corner thereof is fulcrumed a heavy lever 11, of the second class, having at its outer end a pedal 12 for the foot of the operator. A long link 13 is pivoted near the center of the lever, and its other end is similarly secured to the extremity of a rock-lever 14, fulcrumed near the upper center of the plate 1, as seen in dotted lines at Fig. 1. Two links 15 are pivoted to the lever 14, one on each side-of its fulcrum, so as to cause the latter to operate upon them after the manner of a double bell- 'cranln The outer ends of these links are pivoted tothe upper ends of the levers 3 and 4, so as to rock them toward each other when the lever 11 is depressed and to restore them to the vertical when said lever is returned to its position, as shown in the two elevations. Upon each of the levers 3 and 4 a lever 16 is fulcrumed by means of a heavy bolt or stud 17. These levers 16 have a slight swinging motion independent of the levers 3 and 4, which motion is derived from a lever 18, fulcrumed to the plate and connected to the levers 16 by links 19 in like manner as the lever 14 is connected to the levers 3 and 4. This lever 18 has also a tread or pedal 20. The 1e- .vers 16 have boxes 21, in each of which, as

also in the slide-blocks 9, is pivoted an eccentric grasping-pawl 22, whose purpose will presently be described. In a bracket 23, which projects outward from the platel, is a screwthreaded bearing for the support of a screw 24, whose lower end carries a head or jaw 25 on a swivel-joint. This is designed to co-operate with a fixed jaw 26, whose upper face is curved, as seen at the elevations, and upon which, as seen at Fig. 1, rests a jaw-block 27 for use in connection with straight work. A pawl 28 on the lever 18 co -operates with a short rack 29 on the lever 16 to holdthe lever in its depressed position.

The operation of my invention is as follows: Suppose a straight piece of iron is to be upset. The machine, as shown, is prepared to receive it. (See particularly Fig. 1.) The iron is laid on the jaw-block 27 and the complementary jaw 25 screwed down almost into contact with it. By means of the screws 10 the up per pair of the pawls 22 is then moved downward into light contact with the upper surface of the work, the lower pair of pawls engaging it beneath. The lever 18 is then de pressed by the foot and held by the rackand pawl,,and the movement of this lever turns the levers 16 so that their pawls move upward and outward, very slightly, it is true, but sufficiently to turn both pairs of pawls and give them'afirlmbite on the surface of the strip or bar to be upset. \Vhen thus engaged, the upsetting is eifecte'd by depressing the lever 11, which, through link 13, lever 14, and links 15, swings the two main levers 3 and 4 toward each other, whereby a very great endwise pressure is brought to bear on the work between the pawls, and "this'pressure shortens or compresses or, in the common term, upsets the bar or strip. The function of the jaws .251and '27 is ttotp revent th'e work f rom buckli n g underthegreat stress to whichitiis subjected,and the j aws may-be extended towaril the levers 'fart'h'erfih'an the drawings show, if desired, soras to :leave little or none of the work fiunsup'ported. Elie closingnnovementof 'the mainleverstat the. horizontal plane in which thegraspingrpawtsi engageis about-five-eighths of an inchna'ndi this of course limits the am'ountzof :upset,

that can' be 1 effected by :single operation but the engagement of'the 'pawls may be 1re-= newedl'and any desirednumber oftindependeutoperations madedf greater shortening-is: desired.

In Fig. 2 the machine-is shown asreadyrto operate one tire. For thi's purposethe'jaws block 27is removed and thetcentrabparbofi the tire'tobe upset lies between theicurve'd" face of26 andthe'jaw 25,'whi'ch,Lif requiredn may also be provided :wi-th :a curved lower: face-as, for instance, by securing the block 27 on its lower side. Ther'acti'on offth'e machine is-of course the same :whether o'perate ing on straightor eurved work.

I do notw-ish to be confined lto:thefdetails of construction orzt-he precise connectionsof: the levers, since these may be-widely varied' without departingfrom the essentials of my inventionas recited in*the claims.

I-claim I r 1. *In a machine of the'chara'cter described, a pair of levers providedwith grasping de-' vices for holding the work, in combination with a support for the work between ithe' grasping devices and aiset of zcoanpoundile vers' connectedto the "first-namedleversantl adapted to swing them toward.the'work-support.

2. The combination, withthebase, ofa pair;

mentarypawls, the lever 18 and connections for effecting the engagement of both pairs of pawls with the work, and the lever 11 and Its connections, whereby the two main levers are operated to effect the upset.

3. The combination, with the base, of the main leversfulcrum'edthereto, pawls carried bysaid levers and adjustable vertically thereon, a "second; pairvof levers, each having a pawl complementary to one of the upper pawls, a work-support between the two main levers in line with thepawls, means, asdescribed, for

closing the twopairs ofpawls upon'the work, anilfurther means for effecting the inward movement of the main levers to eflect the upset.

4E. The: base anththe main levers fulcrumed thereto: and haviug each a vertically-adj 11stable grasping-pawl, rin combination with $600116. ipair o'f levers fnlcrumedztowthe main levers :antl bearing each *a r'coniplementa'r-y 8o igraspingapawl, compound levers connectedi to "the smaller levers to eifect'theuengagement of the :pawls with-the work; and other A compound :levers-connected to rand adapted to actuate the main levers,tsubstantiallyas set 1 5 forth.

5.1In a machine of the character described, aaapairof leversgeachp rovided with a pair of -cotoperatinggrasping devices andrfulcrnmedmto a suitable supp'ort, in ieombinationwithmom- I 0 pound tlevers -.connected to said firsttnamed levers andadaptedto-swing:theminward and thereby shorten :the 'distance between the grasping -devices,:substantially as? specified.

:6. -In a :machine as described, "a rpai'r "of main levers, each 'bearing a graspingtpawl twhose'lengthzis obliqueto-the line of ethelle- Ever to WhiChliUiSfPl-VOtBd, irrconibination with a secondrpairof rgripping -pawlslike th-e fi rst pairand adapted-to co-operate with; them,- and means, as described, forswinging the tmain le- *vers toward eachother'foneffieotingtheupset.

. 7. The main levers .fulerumed to a suitable base and having thereonthe: pawlsadj ustable ttowardzandi'away'from-the"work, in combina- 1o 5 ti'on .with the lsecondary levers 'fulcrnmed 'to the main levers and shearing coo-operating tgrasping pawls and meanscounectedato the secondary levers for operating-them about =their: respecti-vef ulcrurns, whereby the initial 1 I o grasping"; movement ofithe pawlsis effected.

In testimon yiwhereof I" aflize my signature 1 in z presence uf two witnesses.

EPI-IRAIEM CHAQUETTE.

Witnesses:

SHERMAN H. :HUBBARD, FM. 0. HI-NoHcmFFE.