But, as Fruit of the Loom's cutting machines and bleaching vats were cranked up on pallet jacks, loaded onto flatbeds, and hauled to the Port of Brownsville, many of the company's workers pocketed a month's severance and filed into Mario's van.
The traditional hydraulic jack-loading method has been adopted since the beginning of the twentieth century.
Open image in new window Fig. 2 Jack-loading diagram and vertical rail deflection measurement.
The standstill measurement of track stiffness can be performed with the traditional jack-loading method, impact hammer method, FWD (falling weight deflectometer) method, and track loading vehicle method.
The principle for the track loading vehicle (TLV) method is the same as that of the traditional hydraulic jack-loading method.
In the traditional hydraulic jack-loading method, a certain force is exerted on the rail and then rail deflection is measured with a displacement meter or a dial indicator, and thus the force displacement curve can be obtained (see Fig. 2).
The overall track stiffness, generally, can be measured based on four methods: (1) traditional hydraulic jack-loading method [1, 2], (2) impact hammer method [25, 26], (3) FWD method [9, 27], and (4) TLV method [2, 5, 28, 29, 30, 31].
Table 2 Pre-jacking loads and maximum loads in jacking tests.
Three loading schemes were designed: a stack load, jack, and jack and stack load combination.
Child 3: "Jack" Researcher: "Jacks?" Child 3: "Yeah, jacks".
