US1380704A - Motor block-stand - Google Patents

Description

1. ,s. CARSWELL AND A. R. HAMMOND. MOTOR BLOCK STAND.

APPLICATION FILED SEPT- 24, 1920.

13,380,704. PatentedJune 7,192i.

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JOSEPH s. CARSWELL AND AMIL It. HAMMOND, or Boonn, IOWA.

MOTOR BLOCK-STAND.

Specification of Letters Patent.

Patented June 7, 1921.

Application filed September 24, 1920. Serial No. 412,605.

To all whom it may concern:

Be it known that we, JOSEPH S. OARSWELL and AMIL R. HAMMOND, citizens of the United States, and residents of Boone, in the county of Boone and State of Iowa, have invented a certain new and useful Motor- Block-Stand, of which the following is a specification.

Our invention relates to and consists in certain improvements in motor block stands of the kind illustrated and described in our Patent No. 1,326,147, issued December 28, 1919.

In connection with the use of our patented motor stand, the motor to be repaired is placed upon and clamped on a tilting platform and this platform is held" locked in various positions of its adjustment by a spring actuated pawl engaging a sector carried by the hinged platform. In connection withthe use of this device, it is frequently necessary to swing the platform, with its heavy motor, from one side to the other, and this requires considerable effort on the part of. the operator. Furthermore, in the event that the spring actuated pawl should be inadvertently held away from the notched sector, the entire platform, with its heavy engine, might fall from an upright position downwardly toward either side, which might injure the engine.

The object of our invention is to provide means of simple, durable and inexpensive construction, that may be readily, quickly and easily applied to our motor stand, whereby the platform, with its motor clamped thereto, is yiel-dingly held normally in an upright position, and when tilted in either direction from this position the weight of the motor and platform will be partially supported by the springs to thereby relieve any shocks and jars that might be caused by having the engine and its platform drop from vertical to an outwardly or downwardly inclined position, and furthermore, to provide means by which the operator may swing the motor and its supporting platform to any position of its adjustment readily and easily and with the expenditure of only a slight amount of force.

Our invention consists in the construction, arrangement and combination of the various parts of the device,- whereby the objects contemplated are attained, as hereinafter more f y set f po nted 9st in our la ms and illustrated in the accompanying drawings, in which:

Figure 1 shows a vertical sectional view on the line 11 of Fig. 2.

Fig. 2 shows a side view of a motor block stand embodying our invention; and

Fig. 3 shows asimilar View of the top portion of the motor block stand with a motor clamped to the tilting platform, and the tilting platform and motor swung to position with the platform substantially vertical;

Referring to the accompanying drawings, the motor block stand to which our improved attachment is applied is substantially similar to the one illustrated in our said issued patent, and comprises a base 10 having at its upper end a shaft 11. The motor block platform is indicated by thenumeral 12, and is provided with downwardly extending lugs 13 pivoted to the shaft 11. Means are provided on the platform 12 for clamping a motor to the top surface of the said platform.

Fixed to the under surface of the platform 12 is a notched sector 14, and slidingly mounted in the base 10 is a pawl 15 to coact with the sector, which pawl is controlled by a treadle 16. All of the parts just described are similar in construction and function to the structure disclosed in our said patent.

For the purpose of assisting the operator in moving the platform and motor to various positions of adjustment, and for cushioning same against falling when tilted laterally from either side of a vertical position, we have provided two torsion springs. Each spring comprises a coil 17 wound around the V shaft 11 and having one terminal 18 extended upwardly and laterally and secured by a screw 19 to the platform 11, the other terminal 20 being extended downwardly and provided with a hook at its lower end to pass around the under side of one of the cross pieces of the frame 10. These two springs are coiled upon the shaft, and have their terminals extended in opposite direc tions, as clearly shown in Fig. 1. By securing one terminal of each spring to the platform 12, all lateral movement of the springs is prevented and they are firmly and securely held in place.

The springs when arranged in the position shown in Fig. 1, will both be in substantially normal position and not under appreoiable tension. Assuming that an en;

gine is clamped to the platform 12, and that it is desired to move the platform with its engine from the horizontal position of the platform to a position with the platform nearly vertical on either side, then the operator releases the pawl 15 from its sector 14 and exerts a slight pressure upon one side or the other of the platform to tilt it in the direction desired. During this tilting movement one of the springs will uncoil and the other coil upon the shaft, but the tension upon each will gradually increase, so that in the event that the pawl 15 was not placed in proper engagement with its sector, the motor and its platform would not strike violently against the side of the base 10 in such a manner as might cause injury to any part of the engine, and this falling movement would be cushioned by both springs. Furthermore, when moving the engine and its platform from position with the platform substantially vertical, as shown in Fig. 3, it is obvious that no great strength on the part of the operator is required, because both the springs are under tension and will assist the operator and exert their force in a direction tending to return the platform to horizontal position, as shown in Fig. 1.

We claim as our invention:

1. In a motor block stand, the combination of a base, a platformv pivotally mounted upon the base and designed to receive a motor to be repaired, and two torsion springs interposed between the platform and the base, and so arranged that when the platform is tilted in either direction both of the springs will be brought under progressively increased tension during such tilting movement, to thereby cushion the platform against falling movement in either direction, and also to exert spring pressure in a direction tending to return the platform to normal position after ithas been tilted in either direction, for the purposes stated.

2. In a motor block stand, the combination of a base, a shaft carried by the base, a tilting platform pivotally mounted on the shaft and designed to receive a motor block, means for holding the tilting platform in various positions of its tilting movement relative to the base, and two'torsion springs, each having a coiled central portion-wound upon said shaft, and each having one terminal fixed to the platform and the other terminal provided with a hook to engage a part of the base, the coils and terminals of the two springs being so arranged as to be brought under progressively increasing tension as the platform moves from horizontal toward vertical position in either direction.

Des Moines, Iowa, September 14:, 1920.

JOSEPH S. CAR-SWELL. AMIL R. HAMMOND.

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