Oranges, coffee, bacon and logs: H. W. Young (Industry and Welding, Third Quarter, 1936)
✍ Scribed by R.H.O.
- Book ID
- 104130779
- Publisher
- Elsevier Science
- Year
- 1936
- Tongue
- English
- Weight
- 123 KB
- Volume
- 222
- Category
- Article
- ISSN
- 0016-0032
No coin nor oath required. For personal study only.
✦ Synopsis
going on. In this case, the agar plate was exposed for a half an hour, and at the end of incubation there were only two colonies of bacteria on the agar plate. This is truly a remarkable testimonial for this particular application of air conditioning.
R. H. O.
Pneumatic-Tired Carriers Transport Heavy Girders on Earth
Roadway.-- ( Construction Methods, October, 1936. ) Riding on a dozen pneumatic tires, distributed four under the rear end of a truck tractor and eight under a specially designed trailer, 65 ton girders for the Little Hell Gate spans of the Triborough Bridge, New York City, traveled in wet and dry weather over an earth road and down a steep grade to the water's edge where a derrick on the bridge deck picked them up and set them in the structure. Both trucks and trailers were equipped with adjustable welded brackets for transporting the girders in vertical position. Each of the four trailers constructed weighs about 19 tons and consists of a heavy welded frame resting on two trunnion-type rocker axles equipped with dual wheels making four dual wheels in all. These wheels are arranged in a straight line across the width of the trailer. The axles could rotate through a limited angle in a vertical plane but could not be turned in a horizontal plane. Free rocker motion of the axles assured full load carrying effectiveness of the dual wheels on uneven ground. Each wheel was shod with a lO.5O X 24 in. pneumatic tire. Only about one-fourth of the weight of the girder was thrown on the truck, the remainder being carried by the trailer, which was spotted near the five-eighths point of the girder to obtain this load distribution. R.H.O.