Abstract: A tread for surface contact with various surfaces of a human body, as feet, chest, abdomen, etc., has a base with upwardly projecting tines. A surface tread is provided in contact with, and is softer than, the tines. The relative hardness of the tines and the surface tread are designated. When the surface tread is urged toward the tines by a body portion urged against the surface tread, the tines, because of the relative hardness of the tines and the surface tread, will depress the surface portion and form dents or depressions therein. These depressions will mechanically resist side movement of the contacting tine portion and thus mechanically interlink the surface portion and the tines and thus the tines bend at midportion and with relatively little movement of the tip portions of the tines which is restrained because of the mechanical engagement with the tines and the depressions.

Abstract: A truck or automobile thermometer for mounting on the exterior of the vehicle and subject to outside weather conditions is shown. The sensing element of the thermometer is of the usual rod type with a capillary tube containing mercury, etc. A direct reading dial with a pointer is operatively associated with the rod and is disposed at right angles thereto. An externally threaded nipple is connected with the thermometer and is coaxially disposed on the rod element. An internally threaded tube surrounds the rod and is spaced therefrom to provide an air chamber around the rod-sensing element. This tube has an end opening to admit exterior air and side outlet means to exhaust air. A bracket having two legs, disposed at right angles to each other, is provided with a hole in one leg of smaller diameter than the threaded tube. Then such hole is passed over the threaded nipple and the tube is threadedly connected with the nipple, thus uniting the rod, bracket, and tube.