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Sunday, July 19, 2020 | History

2 edition of Utilization of western hemlock and western firs for poles and piles found in the catalog.

Utilization of western hemlock and western firs for poles and piles

William J. Ruppert


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Utilization of western hemlock and western firs for poles and piles by William J. Ruppert Download PDF EPUB FB2

The available quantity of pole- and piling-size trees of western hemlock and western firs (Table 1) shows that these nondurable species are an important potential source of supply.

Bark-thickness values indicate that peeling residues will be lower with hemlock than with most of the firs (Table 2).Cited by: 1. Utilization of Western Hemlock and Western Firs for Poles and Piles William J. Ruppert Robert D.

Graham INTRODUCTION The steadily increasing costs of raw materials, of the treated products, and of their re-placement in service, as well as the steadily shrinking supply of preferred species, prompted a.

Utilization of western hemlock and western firs for poles and piles. Abstract. The steadily increasing costs of raw materials, of the treated products, and of their replacement in service, as well as the steadily shrinking supply of preferred species, prompted a forum at Oregon State University on "to encourage the use of.

Poles 18–2 Piles 18–3 Construction Logs 18–3 Ties 18–3 Form 18–3 Western larch poles produced in Montana and Idaho came into use after World War II because of their favorable size, shape, and strength properties.

Western hemlock aTaken from ANSI O 18–5. Western hemlock thrives on soils with perudic and udic soil moisture regimes. If, however, internal soil drainage is restricted within 1 m ( ft) of the soil surface, height growth decreases.

Western hemlock is poorly suited to sites where the water table is less than 15 cm (6 in) below the soil surface. Other Names: Western Hemlock-Spruce, Pacific Hemlock, Coast Hemlock, West Coast Hemlock: Size: Height: 50 to 70 m ( to ft); occasionally grows up to m ( ft).

Trunk diameter: Up to m (9 ft). Identification: Leaves (Needles): Short-stalked, finely toothed, flat, mm long, irregularly spare Cones: Ovoid, short-stalked, thin papery scales; greenish to reddish-purple. Natives mostly used the wood for firewood.

Young trees and saplings were used for poles and fish traps. The bark was used to make a reddish brown dye or paint and as a tanning agent. The pitch of hemlock was used on the face, cosmetically and to prevent chapping. Use by Wildlife: Hemlocks are favorite nesting trees for many birds.

Pine Siskins, Crossbills, Chickadees and Deer Mice eat the seeds. Western Hemlock Western hemlock (Tsuga hetero-phylla) is an evergreen tree that may reach 50 m in height.

It is found typically along both the east and west sides of the Coast Range and the Interior wet belt west of the Rocky Mountains.

It has a narrow crown with a characteristically drooping top. It has delicate, feathery foliage and down.

Western Hemlock of course is also an important medicine among the coastal First Nations peoples. Like many conifers, the sap or pitch is medicinal, used as a poultice to heal wounds and burns, as well as mixed with fat to form an aromatic salve that is useful as a chest rub for colds, to massage sore muscles, and to protect against sunburn.

Distribution: Grows from ft ( m) elevation in the Pacific Northwest on southern and western exposures. noble fir (Abies procera) (click on each photo to enlarge image). Generally, drier sites are occupied by Douglas-fir while western redcedar and western hemlock dominate wetter habitats [10,38,].

Inland, grand fir is most abundant on sites averaging 25 inches ( mm) or more annual precipitation that are either too dry for, or beyond the range of, western hemlock and western redcedar. A suitable wood that I have the easiest access to is Western Hemlock.

My question is, when is it best to harvest hemlock for green, round wood timber framing. My current dilemma is between harvesting now (January) when the sap is not running to provide the hardest, driest wood after removing the bark, or to wait until May when the sap is.

western hemlock. The average breaking strengths were 4, pounds per square inch (lb/in.2) for Sitka spruce and 4, lb/in.2 for western hemlock.

Both values are reasonably close to those obtained by the current design procedure. Statistical curves for estimating near-minimum strengths at various confidence levels were developed. Western Hemlock Tree. Western hemlock tree (Tsuga heterophylia) is a large tree that usually grows 30 to 50 meters in height.

As compared to Eastern hemlock, this evergreen tree has a narrower crown and droopy branches with light, feathery foliage. As it is common with all types of hemlocks, this glorious tree has sharp, needle-like leaves that. Western Hemlock has neither. True firs are typically lighter in color than Western hemlock.

Blog at Post to. Cancel. Other Common Names/Trade Names: Lumber is often grouped with the true western firs and is sold as hem-fir. Scientific Name: Tsuga heterophylla Best Characteristics for Identification: Obvious growth rings. Hemlock Recently I was asked the difference between Western and Eastern Hemlock.

Many of us from New England know that Eastern Hemlock (Tsuga canadensis) is an evergreen with short, flat needles and it is a native of the Eastern U.S.

and adjacent Canada. It grows as far west as eastern Minnesota and south to the mountains of northern Georgia. COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus.

Western Hemlock, True Firs, Other Conifer, and Spruce 3 % inclusive No. 2 Sawmill and better log grade. Western Hemlock, True Firs, Douglas-fir Poles & Piles DFL 1 Western Redcedar Poles RCL 1 Chipwood (5) CHW 1 20 Schedule B No.

and Headings Commodity Description Unit of Quantity Second Quantity; Wood and Articles of Wood; Wood Charcoal: - Fuel wood, in logs, in billets, in twigs, in faggots or in similar forms; wood in chips or particles; sawdust and wood waste and scrap, whether or not agglomerated in logs, briquettes, pellets or similar forms.

well under a closed canopy. Western hemlock grows in pure stands or mixed at lower levels with Douglas-fir, silver and grand firs, giant arborvitae, redwood, and hardwood and at higher elevations with noble fir, Alaska cedar, mountain hemlock, western, white, and.

Western Hemlock Looper Lambdina fiscellaria lugubrosa Key Wildlife Value: The western hemlock looper creates snags and down wood by severely defoliating and causing the death of all sizes of western hemlock and associated trees in western hemlock stands that are older than 80 years.Water hemlock, (genus Cicuta), genus of four species of poisonous plants in the parsley family (), common throughout the north temperate hemlocks typically grow in wet, marshy places and are often confused with nonpoisonous members of the family, such as wild carrots or plants contain cicutoxin, which rapidly acts on the central nervous system; the roots are especially.Hem-Fir is a species combination of Western Hemlock and the true firs (Noble, California Red, Grand, Pacific Silver and White fir).With strength properties slightly below Douglas Fir-Larch, this is an extremely versatile species group and useful for multiple, general-purpose framing applications.