US668387A - Machine for uniting nuts and bolts of tires, &c. - Google Patents

Description

m. 668,387. Patented Feb. I9, mm.

u. a. NEALE.

MACHINE FOR UNITING NUTS AND BOLTS OF TIRES, &c.

(Application filed Aug. 7, 1900.:

(No Model.)

UiviTnn STATES aTninT @TTTQE.

ULYSSES G. NEALE, OF AGAVVAM, MASSACHUSETTS.

MACHINE FOR UNITING NUTS AND BOLTS OF TIRES, 80C.

SPECIFICATION forming part of Letters Patent No. 668,387, dated February 19, 1901.

Application filed August 7, 1900. serial No. 26,135. (No model.)

To all whom it may concern:

Be it known that I, ULYSSES G. NEALE, a citizen of the United States of America,residing at Agawam, in the county of Hampden and State of Massachusetts, have invented new and useful Improvements in Machines for Screw-Uniting Nuts and Bolts and other Objects, of which the following is a specification. 7

This invention relates to rotary wrenches and means for operating the same, the object being to provide im proved devices of this class adapted to be used for screwing nuts onto bolts by means applied to the wrench by the foot or other suitable power, whereby the Wrench is given the required rotary movement, this device being equally adaptable for holding a screw-dri ver for the purpose of turning screws into various kinds of woodwork. The operation of this device is such that the screw-fastening devices are operated upon and manipulated with great rapidity and a considerable economy of time and labor results therefrom.

The invention consists in the peculiar construction and arrangement of the operative parts of the machine, as hereinafter fully described, and more particularly pointed out in the claims.

In the drawings forming part of this specification, Figure l is a perspective view illustrating a revolving wrench and means for operating the same embodying my invention, this figure illustrating as one description of the work in which said wrench may be advantageously employed portions of a vehicle-wheel and tire bol -sand nuts thereon,

clearly showing how the latter may be engaged by said wrench for screwing the nuts against the inner edge of the telly of the wheel. Fig. 2 is an edge view, partly in section, of a detailed part or parts of the device, which are hereinafter-fully described. Fig. 3 is a vertical sectional View of certain parts shown in Figs. 1 and 2 and are fully described below.

Referring to the drawings, 2 indicates the table of the machine, 3 the leg-supports and braces thereof, and 4 a foot-treadle supported on a suitable arm, which is pivotally connected to one of said leg-supports, as shown. A portion of a vehicle-wheel 5 is shown on the table of the machine, and 6 indicates one of the tire-bolts of the rim of said wheel, on which bolt a nut is shown in a position to be brought before the wrench, hereinat'ter referred to, to be operated upon. A pillow-block 7 is secured on said table, having a tubular bearing 8 on its upper end. A tubular tool or wrench holder 9 is fitted into said tubular bearing 8 for rotary movement, and into said holder is fitted a nut-wrench, as shown in the drawings, (indicated by 10,) this wrench indicating only one of several tools which may be applied to said holder. Said wrench 10 has a rectangular opening in its end, as shown, whereby it may inclose a nut or the head of a bolt, and thereby impart rotary motions to one or the other for the purpose of screw-uniting the same. It is obvious that in operating upon wood-screws instead of nuts a screw-driver having a suitable shank to fit said wrench-holder 9 may be used in the latter. A sprocket-wheel 12 is secured on said wrench-holder 9 opposite the rear end of said tubular bearing 8, and a sprocket-chain 13 is applied to said sprocketwheel and extends downwardly through said table 2 and around a guide-pulley M, which is hung to rotate in a yoke 15, which is connected to a part of the leg-supporting parts of the table, as shown in Fig. 1, thereby providing for free movement of said sprocketchain for rotating said wrench holder 9. Means are provided, as herein shown, connected with said foot-treadle 4, for imparting an intermittent rotary motion to said sprocketchain in opposite directions and through the latter to said wrench-holder 9, which means are constructed and operate as follows: A spiral spring 16 or other suitable automatically operating device is connected to said foot-treadle 4 for moving the latter upward after having been forced downward by the foot of the operator. A tubular case 17, preferably of sheet metal, incloses a portion of said sprocket-chain beneath said table and is pivotally connected to the upper end of a connecting-rod 18, the lower end of which rod is pivotally connected to said foot-treadle 4. It will now be seen that a downward movement given to said foot-treadle imparts a like movement to said tubular case 17, and when the foot of the operator is lifted from said footholder 9 to the right or to the left.

.upon. tubular case 17 slides upward on said sprockettreadle said spring 16 carries said ease upwardly. Therefore the operation of said treadle and spring, as stated, imparts a verticallyreciprocating movement to said case. Said case is provided wit-h a chain-engaging dog 19, which is .fixed on a rocking bearing 20, which has a man ually-operated reciprocating rotary movement in said case, whereby said dog may be engaged with eithersection of the chain within said-tube. Said bearing 20 has the end thereof on the front side of the case bent downward in elbow form, as shown. Thus when the extremity of said elbow is swung to the right or to the left the free end of said dog 19 is brought into engagement with said sprocket-chain to the right or to the left, to the end that the downward movement of said foot-treadle may effect contrary movements of said chain and consequently intermittent rotary movements in the said wrench- Suitable means are provided for retaining the said dog 19in engagement with either side of said chain. In this case, as most clearly shown in Fig. 2, a springholding pin 21 is passed through the head of the bolt 22, to which said connecting-rod 18 is attached, said bolt being fitted somewhat loosely in said case, which permits of the easy turning of said pin 21 in the shell of the case. Between the bent-down extremity of said bearing 20 and the end of said pin 21 above said bolt 22, as shown in Figs. 1 and 2, is interposed a coiled spring 23, so that by turning the pin 21 back and forth said spring is caused to hold said dog in engagement with either of the inner opposite sides of said chain in the manner shown in Figs. 1 and 3, to the end that when said case is drawn downward by the foot -treadle the chain is forced to take a like motion, and thereby impart a limited rotary motion to said wrenchholder 9. When said case 17 is moved upwardly by the treadle movement, said dog slides freely over the links of the chain. The reciprocating downward movements of said treadle 4 impartintermittent reciprocating rotary motions to said Wrench-holder 9 and to the tool carried therein.

The operation of the machine in screwing nuts onto tire-bolts of Wheels is as follows: The dog 19 being set to engage the part of the sprocket-chain 13,as shown in Figs. 1 and 3, the operator brings the nut of said tire-bolt 6, for instance, around opposite the end of the nut-wrench 10 and enters said nut into said holder and then presses down the foottreadle at one or more times, as may be necessary, to screw the nut fully against the wheelfelly, and so on with each nut to be operated It will be understood that the said chain each time that the foot is removed from the treadle, the spring 16 effecting such movement of the treadle and the case. Therefore repeated upward and downward movements of said foot-treadle give intermittent movements to said chain and said wrench-holder,

whereby the desired action of the wrench or other tool connected with said holder is ef' fected. Furthermore, said devices may be advantageously used as a drilling-machine by inserting a drill in said holder 9 in place of said wrench.

Having thus described my invention, what I claim, and desire to secure byLette rs Patent of the United States, is

1. In a machine of the class described, a tool or wrench holder havingasprocket-wheel thereon, suitably mounted for rotary motion, a foot-treadle, means for swinging said treadle upwardly, a sprocket-chain engaging said sprocket-Wheel, and means intermediate of said treadle and chain whereby the downward movement of said treadle induces the movement of said chain around said tool or wrench holder, thereby rotatingthe same, and whereby the said treadle may rise automatically free of any action upon said chain, substantially as described.

2. In a machine of the class described, a tool or wrench holder having a sprocket-wheel thereon, suitably mounted for rotary motion, a foot-treadle, a retracting-spring connected to said treadle, a sprocket-chain engaging said sprocket-wheel and means intermediate of said treadle and chain whereby the downward movement ot'the I readle may i nduce the movement of said chain around said tool or wrench holder in opposite directions, at the will of the operator, and whereby said treadle may rise under the action of said spring, free of any action on said chain, substantially as described.

3. In a machine'of the class described, a tool or wrench holder havingasprocket-wheel thereon, suitably mounted for rotary motion, a foot-treadle, a retracting-springconnected to said treadle, a sprocket-chain engaging said sprocket-wheel, a chain-engaging dog con- 'nected with said treadle for movement with and independently of said chain, whereby the downward movement of the treadle may induce the movement of said chain around said tool or wrench holder in opposite directions, and whereby said treadle and dog may rise free of any action on said chain, substantially as described.

4. In a machine of the class described, a tool or Wrench holder having a sprocket-wheel thereon, suitably mounted for rotary motion,

a foot-treadle, a retracting-spring connected to said treadle, a sprocket-chain engaging said sprocket-wheel, a tube 17 connected to said treadle and having a sliding movement on said chain, a chain-engaging dog 19 hung in said tube between the sections of said chain therein, for engagement with either of said chain-sections, and means for holding said dog in such engagement, substantially as described.

ULYSSES G. NEALE. Witnesses:

H. A. OHAPIN, K. I. OLEMoNs.

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