What is it? LXXVI

# 438 is a froe. It is used to make shingles. You lay the metal part on a block of straight grained wood. Then you whack it with a big mallet. It splits the wood.

When I was a kid, I knew several people who used to do this as a side business. And the shingles had character. Because they were split, not sawed. So they had a "wavy" profile.

439. Some kind of sensor (perhaps for burglar allarms?)

#438: this is for making shingles 100% #439: PIR-sensor? #441: dinosaurus back scraper

Nick

438 is a Froe for cutting wood shingles.

#437: the head of a galvanized roofing nail #438: a froe #439: one of the early iPod prototypes #441: I recall a mower that was advertized in the back of Popular Science years ago that I think was called the Manta (or something close). This may be an early incarnation of that device.

yours, Michael

No. 437 looks like a golf tee

#436 A representation of the scales of 'in-justice'. The large ball represents the 'establishment' while the small ball represents the poor 'man in the street'.

#437 A golf tee viewed end on.

#438 An adze?

#439 It's either a night light or a photographer's light meter.

#440 Hmmmm..........part of a spray gun of some sort?

#441 Either a device for making 'furrows' for seed planting or an early 'lawn edger'.

Posted from r.c.m.

Could 436 be some purpose-built, go/no-go hardness tester?

The "Mutilator", of "Do not fold, spindle or mutilate".

"Really Mean" brand toilet paper.

Froe.

Nightlight.

Russian rectal thermometer.

Wheel dresser for a belt sander.

John

436. A punch-like device for making indentations in metal. The big weight is used for harder metals, the small weight for softer metals. 437. Golf tee. 438. Wood splitter. 439. Motion detector 440. Device for spraying water on plants. 441. Weeding/mowing device. Carl G.

437. golf tee

438. froe

440. pump for old gas lamps

Don

438. A froe 439. Photocell

From RCM

Gary Brady Austin, TX

#438 Froe for shingles #439 PIR detector. Usually they have a fresnel lense. Is this one 360 degrees? #440 Piston from hand pump of some kind. The grooves are for o-rings?

O.K. Posting from rec.crafts.metalworking again. My news feed is down, so I'm posting via a different path, and we'll see whether it makes it through.

436) Hmm ... the spheres appear to be set up to spin on the sharp lower point, with the upper shank held between the palms to spin it. I keep thinking of something to do with static electricity experiments -- but that is purely a guess. 437) It looks like the end of a golf tee which should contact the ball. 438) I think that is called a Mattock.

439) A doorbell button --- probably illuminated for ease of use in the dark.

440) At a guess, I would say the plunger out of an air rifle, either BB or pellet. That part to the left looks like a trigger.

441) An interesting form of pull-behind weed or grass cutter. It probably takes two or three passes to get most of the grass. It would do an interesting job of cutting off the weed or grass when the two interlocked rollers overlap.

Now to try to post it, and then to see what others have posted.

Enjoy, DoN.

436 are precision standards. Standard Lighting rod balls and needles.

Martin Eastburn @ home at Lions' Lair with our computer lionslair at consolidated dot net NRA LOH, NRA Life NRA Second Amendment Task Force Charter Founder

R.H. wrote:

436 - Faraday charge instruction devices used to demonstrate the electrical charge from static charges. 437 - Golf Tee 438 - Froe (used to split wood with the grain as in making shingles. 439 - IR motion detector for an alarm/fire system 440 - Spray nozzle 441 - pull type grass trimmer.

Yes, the answer page has a link to more specs on it.

The grooves aren't for o-rings.

Rob

My guess for these was either lightning rod tips that have been made into an office decoration or as others have stated, apparatus for some type of electrical experiments. I been doing some searching and haven't yet found anything like them.

Rob

Wooden shingles are sawn, not split. Shakes are split. See

Dan