US1257152A - Vise. - Google Patents

Description

A. B. TOZER.

VISE.v

APPLICATION FILED JUNE 21. I91! 1,257,152. Patented Feb. 19,1918.

FTQE.

ARCHIBALD B. TOZEB, 0F ERIE, PENNSYLVANIA, ASSIGNOR TO REED MANUFACTURING COMPANY, OF-ERIE, PENNSYLVANIA,

A CORPORATION OF PENNSYLVANIA.

VISE.

Specification of Letters Patent.

Patented Feb. 19, 1918.

Application filed June 21, 1917. Serial No. 176,068.

To all whom it may concern:

Be it known that I, ARGHIBALD B. Toznn, a citizen of the United States, residing at Erie, in the county of Erie and State of Pennsylvania, have invented new and useful Improvements in Vises, of which the following is a specification.

This invention relates to vises and consists in certain improvements in the construction thereof as will be hereinafter fully described and pointed out in the claims.

More particularly the invention relates to what are commonly termed swivel vises and means for locking the swiveled base to the fixed base. The means so provided to be satisfactory must look the swiveled base against turning relatively to the fixed base and preferably it should also lock the swiveled base rigidly with the fixed base. The convenience and facility with which the locking and unlocking of the swiveled base can be accomplished must also be considered.

The invention is illustrated in the accompanying drawings as follows Figure 1 shows a side elevation of the device, partly in section.

Fig. 2 a section of the locking portion of the base on the line 2-2 in Fig. 1.

Fig. 3 a plan view of the locking-ring.

Fig. 4: a section of a slight modification.

1 marks the fixed base. This is in the form of a ring; 2 the swiveled base which is mounted on the fixed base, 3 the fixed jaw and 4 the movable jaw of the vise.

The periphery of the fixed base 1 is in the form of a tapered surface 5. The fixed base has the usual projection 6 for receiving a lag screw or other means for attaching the vise to a bench.

A split ring 7 is arranged within the fixed base 1 and has a tapered outer surface corresponding to the surface 5. The ring is secured to the swiveled base by means of a bolt 8 which extends through the swiveled base into the ring 7. An opening 9 of the split ring is wedge-shaped being given this shape by the beveled ends 10 of the ring. The ring 7 is spread by means of an expanding block 11 operating between the ends of the ring, the block having a wedge-shape corresponding to the beveled surfaces 10. A screw 12 extends through an opening 13 in the swiveled base into the block 11. The

screw is provided with a head 14 with a sliding handle 15 by means of which it may be readily operated.

It will be observed that as the ring 7 is expanded it engages the surface 5 and locks the swiveled base against turning. In this construction the split ring performs an additional and very important function. As the ring is expanded the tapered surface of the ring has a wedging action on the surface 5 which tends to force the ring downwardly. This downward pressure is sustained by the bolt 8 and screw 12 and as these are carried by the swiveled base the effect is to clamp the swiveled base firmly on the fixed base 1 so that the whole structure when locked is rigid. The beveled surfaces 10 should have a relation to the bevel or taper of the surface so as to balance the expanding action and the downward pull on the screw due to the wedging action of the ring.

It will be noted that this structure forms a base of very simple construction free from grooves which must be formed by coring and that the structure is such that any finishing can be readily accomplished.

In Fig. 4: the split ring 7 has a portion cylindrical and a portion tapered, the tapered portion 7 being at a greater angle to the axis than the taper of the ring shown in Fig. 2. The effect of this is to increase the wedging action of the ring and down ward thrust or pressure exerted by the ring on the bolt 8 and screw 12, or in other words, to increase the clamping action between the swiveled base 2 and fixed base 1. The parts may thus be varied to suit the requirements.

What I claim as new is 1. In a vise mounting the combination of a fixed base and a swiveled base one of said bases having an annular surface; a split ring within said annular surface secured to and locked with the other base and having its outer surface engaging the said annular surface, one of said surfaces being tapered; and means for expanding the ring into engage ment with the annular surface.

2. In a vise mounting the combination of a fixed base and a swiveled base, the fixed base having a downwardly flaring tapered surface; a split ring within the surface secured to and locked with the swiveled base; and means for expanding the split ring into engagement with the tapered surface on the fixed base. 3

7 surface; a split ring within the surface seecured to and locked with the swiveled base and a block between the ends ofthe ring for expanding the ring into engagement with the tapered surface.

4. In a vise mounting the combination of a fixed base and a swiveled base, the fixed base having a downwardly fiaringtapered surface; a split ring within the surface locked with the swiveled base; a blockwedg ing upwardly between the ends of the ring for expanding the ring into engagement with the tapered surface; and means con- Copies of this patent maybe obtained for nected with 3. In a visemounting the combination of fixed base and a swiveled base, the fixed base having a downwardly flaring tapered the swiveled base acting to lift the block. f I I 5. In a vise mounting'the combination of a fixed base and a swiveled base the fixed base having a downwardly flaring tapered surfacey awsplit ring'within the surface;

means for securing the ring to and locking the same with the swiveled base; a block wedging upwardly between the ends of the ring for expanding the ring into engagement 7 with said tapered surface; and means confive cents each, by addressing the Commissioner of Patents, 7 Washington, 10.0. s

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