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Saunders Manufacturing Products - Clipboard, 2 Locking Arch-Rings, 2-1/2" Cap, 9"x17-1/2", Brown - Sold as 1 EA - Archboard features unique Lock-O-Matic dual arch rings and 1/8" brown hardboard. Locking feature on rings prevents the mechanism from being opened accidentally. Surface has a smooth finish on the front and back. Archboard holds legal-size papers and offers a 2-1/2" capacity.

Saunders Manufacturing Products - Clipboard, 2 Locking Arch-Rings, 2-1/2" Cap, 9"x17-1/2", Brown - Sold as 1 EA

Archboard features unique Lock-O-Matic dual arch rings and 1/8" brown hardboard. Locking feature on rings prevents the mechanism from being opened accidentally. Surface has a smooth finish on the front and back. Archboard holds legal-size papers and offers a 2-1/2" capacity.

Sold as 1 EA
Manufacturer: Saunders Manufacturing
Total percentage of recycled content: 100
Post Consumer Waste: 0
Country of origin: US

High light output from the 3 W LED
Properly focused beam
27mm outlet diameter
High reliability
No electronic control
Long Burntime
Only 2 parts are in contact with the water --> only one sealing edge
The seal uses 2 O-Rings for added reliability
Precision machined top quality
Heat produced by the LED is returned to the batteries
Textured, nonslip lampbody
Simple switch mechanism
Usable with primary and rechargeable batteries

High light output from the 3 W LED

Through the use of extremely high output 3 W LEDs, this lamp is much brighter compared to similarly sized halogen lamps, and has a longer burntime.
Selected LED: These premium LEDs are selected by the LED manufacturer to have a light output from 67.2 to 87.2 Fluxi for the same power input. These LED emitters are considerably brighter than the standard LED emitter and share the same burn times.

Properly focused beam
The focusing of the LED beam is tight enough to meet the needs of cave divers. Until now, no LED lamp on the market has a tight enough focus for cave diving use. This focusing was achieved through a specially manufactured reflector. Until now it was normal for 50% of the available light not to be focused by the reflector/lens combination. This unfocused light spreads out to the sides and doesn't do the cave diver any good. A tightly focused efficient light beam is also advantageous for normal open water diving.
Because of this the Heser-Backup is also used as a main light for open water diving.

27mm outlet diameter (27mm)
A large reflector can more efficiently focus the LEDs output than a small reflector. Many LED lamp manufacturers use a smaller, less efficient reflector/lens unit, thereby saving money. We don't.

High reliability

Shock resistant
Since LEDs are shockresistant, and the LED junction emits light almost forever (50000 hours) these lamps are highly reliable.
Completely sealed LED unit
The completly sealed LED unit keep on working also in a flooded housing.
Good cooling of the LED
Due to the nickel plated aluminium battery tube efficient cooling of LED is guaranteed. This is not only important for the efficiency of the LED, it is also very important for reliability of the LED. The manufacturer of the LED place many emphasis on importance of adequate cooling for reliable function of the LED. The LED-unit itself don't solve the cooling problem.


No electronic control
The decision to eliminate controlling electronics provides the following advantages for use as a Backup light:
Increased Reliability
Electronics can get damaged by water or shock, and become unusable.
Increased burn time
An electrically controlled LED is always using the maximum power that the circuit is designed for. The advantage is constant brightness until the batteries are completely discharged. The battery voltage drops during the discharge cycle, and the control electronics will compensate this drop by increasing current to the LED. Towards the end of the battery discharge cycle the current draw is at the highest level and the batteries rapidly die with little to no warning. Without control electronics the current draw drops along with the battery voltage. The disadvantage is the LED becomes dimmer as the voltage drops. The advantage is the burn time increases dramatically. This can be an enormous advantage for a diver who needs light since the burn time provided by the electronics is no longer working against him. Due to the elimination of control electronics the lamp is capable of delivering enough light for over 8 hours.
Compensation of battery weakness
If one of the batteries would become week, maybe caused by a battery failure, the electronic controller would raise the current to compensate the lake of voltage. Without a controller the current goes down an reduces the load of the batteries. In such a case, the LED burns weaker but much longer.

Long burn time
Due to the use of an LED and the elimination of electronic controls, the lamp is capable of providing sufficient light for 8 hours and longer (depending on the type of batteries you select).
On holiday you can use it as main light for night dives. Most times one battery set is enough for all night dives. You do not have to charge akkus during your holiday or maintain akkus until to the next holiday.

Only 2 parts are in contact with the water --> only one sealing edge
The outer housing are only two parts. There is only one sealing edge. More sealing edges would rise the rise of leaking.

The seal uses 2 O-Rings for added reliability
The only opening is sealed with 2 O-Rings, one behind the other. This reduces the possibility of a seal failure which can be caused by sediment deposited on the outside O-Ring. If the outside O-Ring seal leaks, the inner O-Ring will still be sealing the opening.

Precision machined top quality metal internals

All internal parts are precision machined. No cheap metal stampings are used. The reflector is made from a solid piece o

The mills are an important feature of Maynard's development. The earliest saw and grist mills were built in the early 18th century. Two of the earliest mills were the Puffer Mill and the Asa Smith's Mill, which were located on Taylor Brook and Mill Street, respectively. These were the first mills to use the Assabet River for power; therefore, they were very slow and sluggish. The grist and saw mill were then followed by paper mills, which were built starting in 1820.

The Mill is easily Maynard's most prominent feature. The complex takes up 11 acres in the middleof what we call downtown. The Mill complex began in 1847 as set of wooden buildings used to manufacture carpets and carpet yarn. Amory Maynard helped construct this mill. His partner, William H. Knight, helped him build a dam across the Assabet and dug a canal channeling a portion of the river into what is called Mill Pond. The Mill changed hands a few times but it would eventually become the largest woolen factory in the world till the 1930s.

The 1950's ushered in a change from textiles to businesses like computer manufacturing. With the start of the final decade of the century the Mill is on the cusp of being transformed again.

It is said that "as the Mill goes, so goes Maynard". While the town isn't as dependent on the Mill as it was in 19th century it continues to play an important role in shaping the character of the town.

We hope you enjoy this historical perspective of the Mill. It has been pieced together from a variety of sources and continues to be enriched as we discover new materials to include, increase the number of hyperlinks and add pictures, diagrams, and sound..
The Mill from 1847 to 1977

The site of the mill was once part of the town of Sudbury, while the opposite bank of the Assabet River belonged to Stow. The present town, formed in 1871, was named for the man most responsible for its development, Amory Maynard.

Born in 1804, Maynard was running his own sawmill business at the age of sixteen. In the 1840's, he went into partnership with a carpet manufacturer for whom he'd done contracting. They dammed up the Assabet and diverted water into a millpond to provide power for a new mill, which opened in 1847, producing carpet yarn and carpets. Only one of the original mill buildings survives: it was moved across Main Street and now is an apartment house.

Amory Maynard's carpet firm failed in the business panic of 1857. But the Civil War allowed the Assabet Manufacturing Company, organized in 1862 with Maynard as the managing "agent", to prosper by producing woolens, flannels and blankets for the army. This work was carried on in new brick mill buildings.

Expansion of the mill over many years is evidenced by the variations in the architecture of the structures still standing.

The oldest portion of Building 3 dates from 1859, making it the oldest part of the mill in existence today, but several additions were made afterwards. Buildings constructed in the late 1800's frequently featured brick arches over the windows, and at times new additions were made to match neighboring structures.

The best-known feature is the clock donated in memory of Amory Maynard by his son Lorenzo in 1892. Its four faces, each nine feet in diameter, are mechanically controlled by a small timer inside the tower. Neither the timer nor the bell mechanism has ever been electrified; custodians still climb 120 steps to wind the clock every week- 90 turns for the timer and 330 turns for the striker.

Amory Maynard died in 1890, but his son and grandson still held high positions in the mill's management. The family's local popularity plummeted, however, when the Assabet Manufacturing Company failed late in 1898. Workers lost nearly half of their savings which they had deposited with the company, since there were no banks in town. Their disillusionment nearly resulted in changing the town's name from Maynard to Assabet.

Prosperity returned in 1899 when the American Woolen Company, an industrial giant, bought the Assabet Mills and began to expand them, adding most of the structures now standing. The biggest new unit was Building 5, 610 feet long which contained more looms than any other woolen mill in the world. Building 1, completed in 1918, is the newest; the mill pond had been drained to permit construction of its foundation. These buildings have little decoration, but their massiveness is emphasized by the buttress-like brick columns between their windows.

The turn of the century saw a changeover from gas to electric lights at the mill. Until the 1930's the mill generated not only its own power but also electricity for Maynard and several other towns. For years the mill used 40-cycle current. Into the late 1960's power produced by a water wheel was used for outdoor lighting, including the Christmas tree near Main Street. The complex system of shafts and belts once used to distribute power from a central source was rendered obsolete by