Патент USA US2123360код для вставки
July 12, 1938. w. E. HARRIS 2,123,360 APPARATUS FOR OBTAINIHG LINEAR MEASUREMENTS Filed June 10, 1936 Wiliz'ami?érrz's 2 arcasco transverse shelf 2! formed with the frame‘ ‘I im mediately to the rear of the wheel i. and may be very rapidly taken with the oper ator of the instrument‘ ‘standing or walking in Arising from the frame ‘I, adjacent to the side‘ an erect and comfortable position. of the wheel i, is a stationary pointer 22 which is adapted to be registered withv the zero indi cation of the fractional units of linear measure the preferred form- of the present'invention, nevertheless, it will be understood that the same is subject to considerable modi?cation and-struce tural variation without departing from the es vxnent i3 provided on the side of the wheel i. Thus, in obtaining a given linear measurement, the upper end of the pointer 22 is alig?ed with in sential features of the invention as the latter have been expressed in the following claim. the zero indication on the scale 63 and the counter mechanism 88 is also set at zero. The instrument is then advanced along the linear .Whatisclaimed is: V 10 ’ ’ ing reels actuated to record such actuation and indicate they same through the sight opening 20. tending laterally from said wheel vand movable equivalent unit ‘of measurement, the counter 15 mechanism is tripped once and its numeral hear If the distance undergoing measurement termi nates in a fraction of the given unit of measure 20 ment, such fractional distance; may be indicated ' by noting the position of the numerals on the scale l3 with respect to the pointer 22. In this manner, both feet and inches in. a given meas urin'g operation will be clearly indicated and ca therewith, a roller carried by said pin, and a counter mechanism carried by said frame, said , counter mechanism being provided with a rock pable of being readily noted by the operator. By the construction of the instrument, the same is capable of being readily employed by 20 ing shaft, an arm secured to the outer end of said rocking shaft, a ?exible engaging element secured to the outer end of said am and pro jecting into the path of movement of said roller whereby rotation of said wheel will impart mo .25 tion'to'said arm through contact with said en- ~ ant who is ‘quite commonly employed when'meas gaging element, whereby when the arm secured to the rocking shaft reaches the limit of its movement, continued motion of the pin will ?ex the engaging element without strain on the arm 80 urements are taken with the use of linear stand until the pin passes thereover. ' but a single operator in the making of measure ments, thus dispensing with the use of an assist? 30 ,’ In a ‘portable device for measuring and indi‘ cating linear distances having a frame, a hand grip formed in connection with said frame at one end thereof, a freely‘rotatable surface'en 15 gaging wheel carried by said frame, a pin ex surface to be measured. With‘ each foot, or other 25 ’ While I have described what I consider to be ard measuring tape. Also, with the use of the present invention, linear measurements of any " ' WILLIAM E.‘ HARRIS.