The continual development of forest utilization and woodworking industries is reflected in the increasing demand for information on new equipment. FAO's Forestry Division, on the recommendation of the FAO Conference, collects such information and sends it on request to member governments. The Forestry Division would appreciate receiving data from manufacturers all over the world; specifications should be accompanied by clear, sharp photographs (glossy prints). FAO, however, can accept no obligation to publish all such information received.
PRECISION DENDROMETER. - An instrument for measuring tree growth. It consists of a Starrett No. 655-FL inch dial gauge micrometer bolted across the top of a small T - shaped hardwood platform so that the face of the platform can be held against the screw heads in making measurements. The two pieces of the platform must be securely bolted together to prevent warping. Three brass furniture corners, arranged in a triangle on the face of the platform, enable the operator to return the instrument to exactly the same position on the screw heads at each re-measurement. The micrometer reads accurately to 0.001 in. and it is possible to interpolate between the graduations. Each revolution of the large hand measures 0.1 in. The spindle has a 3 ft. range of movement which is recorded by the 0.1 in. graduations on the small counter on the dial.
A template (1.5 x 8.5 in.) is used for a uniform spacing of the 3 round-headed brass screws on the trunk of the tree so that they are aligned with the brass corners on the platform. The screws penetrate the trunk to a depth of approximately 0.5 in. The screws can be reset if necessary to compensate for the radial growth of the trunk. The dendrometer measures the distance between the plane formed by the permanent screw heads and the surface of the bark. This distance decreases with growth.
Error resulting from wear caused by the spindle repeatedly striking the bark surface is prevented by attaching a small metal or plastic square or disc on the dead bark at each contact point; a plastic wood disc is shown here. For checking instrumental error at each remeasurement, the investigator should place a set of 3 screws on another tree and then sink a fourth screw to a depth of 0.5 in. into the wood at the spindle contact point. Readings on the check tree will give the correction for instrumental errors. The dead bark should be reduced to about 3/16 in. thick before the screws are installed.
The dendrometer provides the forester with an accurate and rapid means of measuring the seasonal trend of changes in radial growth up to 0.001 in. resulting from the impact of treatments such as thinning fire, pruning, fertilization and irrigation. The annual increase in radial growth resulting from these treatments cannot be measured accurately by the use of conventional methods. Only the instrument is needed for the readings but a set of screws must be permanently fixed in each tree used in research. Readings can be made on at least 200 trees in a single day.
L. S. Starrett Co., Athol, Mass., U.S.A.
AUTOMATIC TREE SEED PLANTER. - Weighs 5 lb. loaded and consists of a light shaft about the length of a walking stick, with a small seed hopper at the top and a cylindrical planting head at the bottom. The planting head is placed in direct contact with the soil and the seed pushed into the ground by means of plunger. Up to 7 acres a day can be seeded with this planter.
Perpetual Forests Inc., Dexter Horton Building, Seattle, Washington U.S.A.
TERRY HIGH PRESSURE FOREST FIRE FIGHTING PUMP
TERRY HIGH PRESSURE FOREST FIRE FIGHTING PUMP. - Turbine type pump with characteristics of both centrifugal and positive displacement unit, of very light weight construction and can be fitted with a frame suitable for back packing for use in bush country. Pressure and volume can be varied to suit requirements by changing the impellers. At present these units can be obtained with capacities up to 50 and 60 gallons per minute, and pressures up to 225 lb.
Specifications: height 18.5 in., length 26 in., width 18.5 in., total weight, approx. 85 lb.
Terry Machinery Co. Ltd., Pumps-Generators. 10030 Montée, St. Laurent Saint Laurent, Quebec, Canada.
FORK LIFT. - Specifications: Capacity 15,000/18,000 lb. Petrol engine: SD four cylinder 70 BHP at 2,800 r.p.m., 50 BHP at 2,100 r.p.m.; diesel engine: Perkins P. 6 six cylinder BHP 55 at 2,000 r.p.m. 4 speeds, 1 reverse. Road speeds, 1st 22 mph; 2nd 12.3 mph., 3rd 6.5 mph; 4th 3.45 mph. Hydraulic hoist and controls. Overall width 7 ft. 1½ in; wheelbase 6 ft. 10 in.; overall length 13 ft. 6 in.; outside turning radius 14 ft. 3 in.
Shelvoke and Drewry Ltd. Engineers, Letchworth, Herts, England.
THE SWING STACKER. - This machine consists of a hydraulically operated fork-lift attachment fixed to a boom; a standard, rubber tire, Lorain SP 414 self-propelled carrier and turntable are used.
Specifications: top travel speed, 7 m.p.h. with load; lifting capacity in any position 5 000 lb.; 7 ft. long forks have vertical lift of 9 ft. 8 in. can rotate 180° and be tilted up and down approximately 10°; turntable and fork lift front end can revolve through 360°; with boom and fork lift completely raised, a height of 27 ft. can be reached.
The Thew Shovel Co., Lorain, Ohio U.S.A.
U.S.F.S. TOMCAT LOG TRACTOR. - Arch tractor for skidding logs designed and built by the U.S. Forest Service. One of its principal objects is to provide ample track area for operation on wet muddy ground. On field tests over difficult and very muddy ground it has already proved to have the following advantages over conventional crawler tractors: 1) can haul log loads up to 50 per Gent larger; 2) by carrying its arch it requires less power output than by trailing it; it can also be backed into difficult places and lined up for yarding out quicker than a trailer arch and reduces damage to young trees; 3) it has the weight and stability to yard out a larger object; 4) with proper power and gear combination and because of elimination of the trailer arch, it can return empty upgrade in at least one gear higher than conventional rigs; 5) because of its wide tracks and well-proportioned track length span, it stays on top of muddy ground and continues operation when other types would bog down; it also improves the roadway for other tractors. Specifications: overall length 18 ft.; overall width 10 ft. 4 in.; height ground to top of arch 12 ft. Comparison: F. S. Tractor: weight no pay load 46,400 lb.: track area on ground 9,360 sq. in.; track pressure no log load 4.9 p.s.i., track pressure with max. load of ½ of 55,000 lb. on tractor 8.0 p.s.i., track plates 36 in. wide; drawbar pull in low 32,000 lb.; drawbar H. P. 120. D-8 Cat.: weight no pay load 39,000 lb.; track area on ground 5,000 sq. in., track pressure no log load, 8.0 p.s.i.; track pressure with max. load of ½ of 55,000 lb. on tractor - 8.0 p.s.i., track plates 22 or 24 in. wide; drawbar pull in low 26,208 lb.; drawbar H.P. 113.
U.S. Department of Agriculture, Forest Service, Washington D.C., U.S.A.
THE CARCO "G" WINCH. - This winch designed for logging and general constructions fits tractors in the 80 to 120 belt-HP range. New features include concealed cable controls, smooth braking action, and choice of gears for high or low range of line speeds. Exterior nuts and belts are recessed, drum flanges are shrouded to minimize cable damage. An automatic brake is available with the Carco "G" winch as extra equipment. This brake allows the operator to set his brake before pulling in the load. The brake takes effect as the tractor clutch is disengaged, preventing the load from slipping back. It is said to be especially useful in arch logging.
Pacific Car and Foundry Co., (Carco), Renton, Washington, U.S.A.
MECHANICAL ELEVATOR TRUCK WITH SALEV FORK LIFTS
MECHANICAL ELEVATOR TRUCK WITH SALEV FORK LIFTS. - Model 33 PD: lifting capacity 3 tons; Model 502 PE: lifting capacity 1,103 lb. Power wheels in front, guide wheels behind; telescopic tilting shaft; speed of lift, 39 f.p.m.
Specifications: Model 33 PD; 2 cyl. petrol motor, gasoil unit type Z 2V; 2 cyl. Renault Type 603 V; length of standard fork 3 ft. 11 in. width 6 in..; standard height of elevation 3 ft. 10 in. (on demand elevation can be increased to 14 ft. 8 in).; weight 9,923 lb. Model 502 PE: 4 cyl. petrol motor, Renault Type 662 4 h.p.; length of standard fork 2 ft. 4 in; width 4 in., height of elevation 8 ft. 2 in.; weight 2095 lb.
Special fixtures: hoist, rammer bucket, hydraulic grab, automatic clamp, exhaust tank for inflammable material.
France Entreprise Nouvelle, 9-15 rue Paul Bert, Boulogne s/Seine, France.
TASKER TRAILER FOR HAULAGE OF TIGHT POLES OR TIMBER
TASKER TRAILER FOR HAULAGE OF TIGHT POLES OR TIMBER - Trailer designed to avoid dangerous overhang of long poles and small timber when hauled on standard 5-ton lorries; has a load capacity of 4 tons, enabling a total load of 6 tons to be carried safely by lorry and trailer combined. It runs on 2 twin wheels with 34 x 7 tyres. "Girling" vacuum-operated brakes are fitted and controlled from the towing vehicle. The connecting pole is square and adjustable to give bolster centers of 13.5 ft., 15.5 ft., 17.5 ft., and 19.5 ft., and is attached to the rear carriage by removable pins. The bolster on the rear carriage is allowed to swivel 46° on each side of the normal and is fitted with two drop-in stanchions and chains. Trailer consists of a square frame surmounted by a turnable ring with main pin bearings under side of the frame carries the mountings for the road springs.
Taskers Ltd., Waterloo Iron Works, Andover, Hants., England.
PRESS COMBINE UNIVERSAL-20. - A compressed air press for wood with flat or curved surface. Pressure can be applied from 4 - 6 lb. per sq. in. and average temperature is from 176.7-285° F. The fixed table is fitted with plates which can be heated (as can the pressure chamber) by electricity, steam or hot water as required. Coils have to be fitted for electric heating.
Specifications: Press for flat surfaces - no limit to length of wood which can be worked; max. width 3 ft. 11 in.; space between sheets 3.9 in.; sheet dimensions 7 ft. 3 in. x 3 ft. 11 in.; normal specific pressure 7 - 9 lb., normal total pressure 220,500 lb.; normal temperature of sheets 176.7°-285° F.
Press for curved surfaces - max. dimensions of wood 6 ft. 7 in x 3 ft. 3 in.; max. depth of wood 8 in.; dimensions of pressure chamber 7 ft. x 3 ft. 8 in. x 11 in.; normal pressure up to 6 lb. per sq. in.
Power consumption: heating entirely by electricity, 12 kw.; motor for hot water pump, 0.76 h.p.; compressor unit, 3 h.p.; caloric units required for heating water, 18,000; approx. net weight, 7,718 lb.; approx. net weight of compressor unit, 882 lb.
Ulrich Steinemann S.A., St. Gall, Winkeln, Switzerland
BARKER AIR CHUCK. - This scraper automatically adjusts itself to follow contour of the log; only the bark is removed; scraper does not cut into the sapwood. Instantaneous action of the air cylinder eliminates log stabbing, when logs are released. Scraper unit and air chuck can be adapted to any standard barker or a complete unit can be made to meet requirements. 100 lb. air pressure is required for most efficient operation.
Ederer Engineering Company, 2931 First Avenue, South Seattle 4, Washington U.S.A.
PLYCOR ONE-MAN ELECTROGLUER. - Designed for fast, efficient high-frequency gluing of lumber cores, and requires only one operator who handles the glue spreading, lays up the stock and removes the finished cores. This equipment is capable of producing from 3,000 to 6,000 sq. ft. of core stock per day.
The One-Man Electrogluer is equipped with both top end side pressure cylinders and a Westinghouse 5 kw RF generator. Both machines are fully shielded. The 2-station lay-up table is pivoted in the center so that one half is in curing position inside the press while the other half extends in front forming the lay-up table, which is motor-driven. When the top cylinders move upwards they lift the top electrodes, the side pressure cylinders, and the back stop thereby leaving the pivoting table free and unencumbered so that the operator can revolve it. This brings the freshly laid-up material into curing position and delivers the glued-up core to him. A glue spreader on a conveyor equipped with gravity roll infeed and conveyor chain out-feed is also included.
Plycor Company, Division Earl Hart Woodworking Machine Co., 565 West Washington St., Chicago 6, III. U.S.A.
NEW HOMELITE CHAIN SAW - This new gasoline chain saw, model 26 LCS, 4 h.p. weight 27 lb. has one simple control - a throttle button on the handle. Automatic centrifugal clutch stops chain when engine idles and prevents overload when chain binds in cut. Concentric bowl carburetor permits operation at extreme angles.
A wide range of blade sizes is available. One-man straight blades are available in 18, 23 and 28 in. sizes; two-man straight blades are available in 23, 28, 34 and 42 in. sizes. Bow saws for one or two-man operation are available in 18 anti 22 in. sizes.
Homelite Corporation, Port Chester, New York.
ONE-MAN CHAIN-CUT SAW, ELECTRO TYPE, PPK 40
ONE-MAN CHAIN-CUT SAW, ELECTRO TYPE, PPK 40. - Saw is fitted with a special chain feed with Y-connection at end of blade preventing overheating, and counteracting the effort required by the motor resulting from the friction of the chain. Patent chain knife with device for regulating and greasing by gravity, designed for cutting all kinds of wood.
Specifications: Saw controlled by generating sector or plant with 2-3 h.p. motor of 2-phase or 3-phase current, 220/380 volt, 50 cycle; fitted with high-resistance steel blade of 16, 20 or 24 in. length; speed of cut approx. 4.7 sq. in. per second with power consumption of 1 K.W.H 48 to 2 K.W.H. 22 according to kind of wood; weight, approx. 40 lb.
Etablissements PPK, 45-47 Boulevard Saint-Denis, Courbevoie (Seine), France
GASOLINE DRIVEN CHAIN SAWS REED-PRENTICE MODEL 50
GASOLINE DRIVEN CHAIN SAWS REED-PRENTICE MODEL 50. - 5 h.p. gasoline-driven portable chain saw for both one and two-man operation. One-man R. P. models range in cutting capacity from 20 to 36 in. while two-man models equipped with an idler type tailstock are available in 24 in., 30 in., 36 in., 48 in. and 60 in. capacities. The one-man unit equipped with a 20 in. open end bar and chain weighs 45 lb; the two-man saw complete with 30 in. guide bar weighs approximately 55 lb.
Handlebars and float-type carburetor remain upright for all operations, as the engine and cutting attachment swivel a full 360° and lock at any angle for notching, felling and underbucking cuts. Automatic clutch stops chain when engine is idling and provides overload protection. Pressure-fed oiling system lubricates chain in all cutting positions.
Reed-Prentice Corporation, Worcester 4, Mass. U.S.A.
PPK DECK SAW FOR CUTTING IN WATER
PPK DECK SAW FOR CUTTING IN WATER. - Saw consists of cutting unit 4 ft. 9 in. long composed of a blade with Y-connection and chain for use on soft or hard wood. A Brampton Duplex chain with chain shield links the motor with the cutting arm.
Motor: PPK petrol engine with 2 vertical cylinders of 30 cu. in., 15-18 h.p. at 4,000 r.p.m., automatic clutch. Grease-box with pump and tubing. The machine is fixed to a carriage which runs on a 20 in. gauge rail (weight of rail: 1.25 lb. per sq. ft.) with four leverage rings for the maintenance of the equipment. A shield protects the equipment from damage. A winch is fixed to the front of the frame from which the end of the cable can be attached either to the cross-bars or to a peg sunk in the ground. Chain greasing by gravity and by hand pump.
Etablissements P.P.K., 45-47 Boulevard Saint-Denis, Courbevoie, (Seine), France.
ACCURATE TIMBER MEASURING UNIT
ACCURATE TIMBER MEASURING UNIT. - This instrument records accurately lengths of timber in measurements of yards, feet and inches or meters and decimeters, as required. In operation the recording unit can be raised or lowered by simple wing-nut adjustment to suit the thickness of timber to be measured; a graduated scale marked on the pillar bracket determines the necessary setting position. In recording the timber contacts a frictional wheel having a knurled periphery which ensures accuracy and negligible wear.
Other special features of the unit are: automatic brake which stops the frictional wheel immediately. Instantaneous reset by lever or detachable key as desired. Measurements are indicated by bold white figures 9/32 in. high on black background; five figure recording capacity: mounting to the machine is effected by two screw holes in the base.
English Numbering Machines Ltd. c/o John Mitchell & Partners Ltd. 9 Bennet Street, St. James's, London S.W.1.
ALTERNAX MORTISER. - On this machine, reciprocating side chisels, and a face cutter with self-clearing action, operate horizontally. The wood is secured to a movable table by quick action clamps and is fed to the cutters acting at 2,800 strokes per min. by means of a hand lever until the adjustable depth stop is encountered.
Specifications: mortise length, 1 3/32 - 2 ½ in.; thickness, 5/64 - 1 3/16 in.; depth 4 1/3 in., table length 27 ½ in.; width 11 ¾ in.; rise and fall 6 in.; motor, 1 h.p. 2,800 r.p.m.
Apart from normal mortise joints, many other types are possible with the same tools - joggled tenons, simple or multiple slit and tongue joints, straight tails, dovetails, slots, etc.,
The Kingsland Engineering Co. Ltd., 25-37 Hackney Road, London, England.
BOICE CRANE 6 INCH AND 8 INCH JOINTERS
BOICE CRANE 6 INCH AND 8 INCH JOINTERS. - Specifications: 6 in. model: overall length 60 in.; width front table 9 in.; width rear table 8 in.; height of fence 4 in.; length of fence 48 in.; height floor to table 36 in.; depth of out max. 5/8; cutterhead diameter 3 ¼ in.; cutting circle diameter 3 3/8 in.; 3 knives in cutterhead; cutterhead speed rotor on cutterhead (direct) drive, 3,300 r.p.m.; cutterhead speed V belt drive, 4,500 r.p.m.; power rotor on cutterhead drive .75 h.p.; power V belt drive, 1 or ¾ h.p.; weights jointer with motor and floor stand 460 lb.
8 in. model: overall length 84 in.; width front table 11 in.; width rear table 8 in.; height of fence 4 in.; length of fence 66 in.; height floor to table 36 in.; depth of cut max. 5/8 in.; cutterhead diameter 3 ¼ in.; cutting circle diameter 3 3/8 in. number of knives in cutterhead 3; cutterhead speed rotor on cutterhead (direct) drive 3,500 r.p.m. - cutterhead speed V belt drive, 4,500 r.p.m.; power rotor on cutterhead drive 1.5 h.p.; power V belt drive 1 or 1.5 h.p.; weight, jointer with motor and floor stand 650 lb.
Oren O. Gallup Inc., Two Lafayette Street, New York 7, N. Y. U.S.A.
AUTOMATIC VENEER JOINTER. - Substructure of machine in box form is designed to hold its shape and to ensure stability. Tool-bearing carriage moves on a specially covered slide bar with automatic lubrication. This carriage supports the circular saws, the cutter heads and their motors. Mechanical pressure is applied by means of a crank, when the pawl is opened the pressure bar is released instantaneously and automatically.
Specifications: max. wood-working length 27 yds.; max. height of pressed veneers 1.2 in., min. height 0.08 in. diameter of blade of circular saw 1 ft. 2 in., speed of blade 3,500 r.p.m. cutter head with three 2.6 in. knives; speed of cutter head 5,850 r.p.m. motor for circular saw, 3 h.p. at 2,800 r.p.m.; motor for cutter head 2 h.p. at 2,800 r.p.m., and feed motor, 1 h.p. at 1,400 r.p.m., weight of machine 3,682 lb.
Ulrich Steinemann S.A., St. Gall, Winkeln, Switzerland.
