Back to results
US 4,397,092 AGranted
Caliper with dial indicator clamp and pistol grip
OwnerStanley T. Marcyaninventor
Life of this patent
Estimating the term…
Abstract
Caliper with a pistol grip and a simple two-piece clamp for releasably securing a dovetail-equipped dial indicator thereto. The caliper fingers are stabilized and strengthened along their midlength by bracket plates fixed to the sides of one finger and embracing the sides of the other finger.
Claims10
A clamp for releasably clamping a dial indicator to a machinist's tool comprising:
- an elongated tool member having an open-ended notch transversely thereof bridged by an open-ended female dovetail member extending lengthwise of said tool member and adapted to slidably seat a cooperating conventional male dovetail member rigidly attached to the main body of a dial indicator;
- said female member having a bore through the bottom thereof;
- a cap screw having its head positioned in said bore and its shank extending into said notch and including means for holding said screw against rotation;
- and
- a knurled nut rotatably mounted on said cap screw effective to hold said cap screw loosely assembled to said tool member and rotatable when the male dovetail member is assembled in said female dovetail member to force the head of said screw against said male member and clamp the same immovably but releasably in place in said female member.
2 more elements
In combination, a caliper equipped with a precision clamp for a dial indicator comprising:
- a caliper having first and second elongated fingers pivotally interconnected between the forward and rear ends thereof;
- the rear end portion of said first finger being notched transversely thereof which notch is bridged by an outwardly facing female dovetail member open at either end and secured immovably to said first finger;
- a dial indicator having a male dovetail member mateable with said female member and having a needle operating probe seatable against a stop carried by the rear end of said second finger;
- a cap screw extending loosely and nonrotatably through said notch and through the bottom of said female member;
- and
- nut means on the threaded shank of said cap screw rotatable in one direction to shift one end of said cap screw in a direction to clamp said male and female members immovably together and rotatable in the opposite direction to release the clamping action between said male and female members.
3 more elements
In combination, a hand-held caliper comprising:
- a pistol type grip fixed to the rear end of one of a pair of pivotally connected fingers having the forward ends thereof spring-biased apart and against adjustable stop means;
- a female dovetail member fixed to the rear end of said movable finger.
- dial indicator means having a male dovetail member slidably seatable in said female member;
- nut and cap screw means operatively associated with said female member which nut is rotatable to advance said cap screw non-rotatably against said male member to lock said indicator means releasably assembled to said female member with the sensing probe of said dial indicator resting against an adjustable stop fixed to the pistol grip end of said caliper;
- and
- lever means on said grip manipulatable to pivot said movable finger away from said stop means.
3 more elements
Dependencies are inferred from the claim text.