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gameswat
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1933 Nervograph & Drivatest

Postby gameswat » Sun Dec 09, 2018 7:27 pm

I have two of these machines by Nervograph Ltd (J G Brenner) to restore, one is fairly original, the other revamped into a shock machine. The Nervograph is the interesting one. The game play is to control a pen over a moving paper roll keeping the ink inside the lines, at completion the paper is sliced off the roll and vended to the player as a single sheet. In the original Nervograph format the player chose one of three tests via three different coin entries. Wave, Straight and Zig Zag. The machine would allow the position of the pen to change depending on which test was chosen, giving a certain range of movement, either left side of the paper, middle section or right hand side. And originally player control was with two handles either side of the cabinet, but this wasn't popular so they added a steering wheel as well. And then they came up with a conversion of the machine into a newer theme called "Drivatest" which added a larger marquee on top and blanked off two of the three original coin chutes, and used new paper which has 6 x different British race tracks to steer the pen over. My machine is a fairly original Nervograph that was altered slightly to use the Drivatest paper roll. And the two handles were removed leaving just the wheel. There is a fully converted Drivatest in Aust that has both the handles and steering wheel. I've also heard of one other Nervograph style cabinet in the UK but no idea what game it is?

My fairly complete machine has nearly all the parts for me to return it back to it's original Nervograph format using all three coin slots, except for the paper it used. I've only been able to find a very small photo showing the back of one original paper sheet, and a 1930's book description of the rear of the paper, shown below. I've been able to guess what the original Nervo paper would look like from the surviving parts in the machine as shown below. Because the player had the choice of any of the three tests that means every sheet has to be basically the same design with all of them shown. I do have maybe 1/4 left of the original Drivatest paper roll, but not really enough to keep the machine running that long. Maybe someone on the forum will have an original paper sheet from the Nervograph for me to look at, or there could even be original unused paper rolls for either game out there!? At the moment looks like I'll just have to take the Drivatest paper to a printer and have the roll copied.

Will appreciate any help that can be offered, cheers, rory.
nervograph & shocker.jpg
Nervo on left, revamped Shocker on right.
nervograph sign.jpg
Nervo marquee sign and coin entry/entries.
nervograph mech side.jpg
Nervo mech side view.
nervograph mech.jpg
Nervo mech.
nervograph pen.jpg
Close up of pen area.
drivatest paper.jpg
Drivatest sheet front, one of six variations.
drivatest paper back.jpg
Drivatest sheet rear, one of six variations.
nervograph wording.jpg
Description of Nervo sheet rear wording.
nervopaper back.jpg
Photo of actual Nervo sheet rear.
nervopaper back.jpg (20.21 KiB) Viewed 978 times
nervograph test paper.jpg
My guess of what the Nervo sheet front looks like.

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gameswat
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Re: 1933 Nervograph & Drivatest

Postby gameswat » Sun Dec 09, 2018 7:56 pm

Description of the machine attached as written in the March 1933 Automatic Age magazine.
nervograph-1933-03-097.pdf
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moonriver
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Re: 1933 Nervograph & Drivatest

Postby moonriver » Sun Dec 09, 2018 8:10 pm

great! something really interesting at last

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gameswat
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Re: 1933 Nervograph & Drivatest

Postby gameswat » Sun Dec 09, 2018 8:16 pm

Amazingly enough the other related Shock machine I have was revamped at least twice in it's life. There are remaining pieces of the full conversion to a Drivatest, then later into the Shock machine. This shows the larger marquee frame that was added and the name plate casting which covered over the unused coin entries for the Drivatest conversion. This name plate was later machined to remove the Drivatest name, but when I stripped back overpaint it can just be seen. Also they added newer side enamel wording plates to alter for the Drivatest. On the left it was altered from " Master your nerves - Take a test daily" as shown on the Nervograph, to " A test a day keeps the Bobby at bay" . Though this was then altered again when it became a shock machine, they covered the word "Bobby" with a strip of tin and painted "Doctor" over it! Similiar thing on the right side too. Even the two small triangular enamel signs that originally pointed to the Nervograph handles have been revamped with an over- coating of black enamel, you can still just read the instructions underneath it. The fact the whole machines are coated in vitreous enamel along with the newer side panels and overcoated black signs really made me wonder. !PUZZLED! And in later research I'm sure I came across some information that showed somewhere in the Brenner family, or companies, there was an enamel works, which made complete sense.
nervograph & shocker.jpg
Shocker/Drivatest on rhd side.
drivatest enamel bobby.jpg
Rhd side of Nervograph enamel sign, and lhd side of Drivatest enamel sign.
drivatest enamel control.jpg
Rhd side Drivatest enamel sign.
drivatest shock mech.jpg
Shock mech.
drivatest shock marquee.jpg
Shock machine showing original Drivatest marquee and machined off name plate above coin entry.

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moonriver
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Re: 1933 Nervograph & Drivatest

Postby moonriver » Sun Dec 09, 2018 9:23 pm

The steering wheel looks huge. On average I wonder how long a roll of paper lasted? After conversion to a Drivatest would the paper roll printed with 6 different tracks and then repeat?

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gameswat
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Re: 1933 Nervograph & Drivatest

Postby gameswat » Sun Dec 09, 2018 10:05 pm

moonriver wrote:
Sun Dec 09, 2018 9:23 pm
On average I wonder how long a roll of paper lasted?
According to the article in Automatic Age it says the roll contains 5000 charts, so that many plays, then machine stops accepting coins once it runs out.
moonriver wrote:
Sun Dec 09, 2018 9:23 pm
After conversion to a Drivatest would the paper roll printed with 6 different tracks and then repeat?
Yes, then back to the start again. Though I was mistaken, only 5 tracks: Belfast TT Test - Market Town Test - "Round The Houses" Race - A Quiet (?) Country Run - Brooklands Banking.
nervograph roll.JPG
Looks like 1/3 of a roll here but since this is the inner roll probably less than 1/4 number wise.
drivatest belfast.jpg
drivatest market.jpg
drivatest houses.jpg
drivatest country.jpg
drivatest brooklands.jpg

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moonriver
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Re: 1933 Nervograph & Drivatest

Postby moonriver » Sun Dec 09, 2018 11:05 pm

very cool, not something I'd particularly want to buy, but fascinating all the same and Its great its going to be restored properly

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daveslot
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Re: 1933 Nervograph & Drivatest

Postby daveslot » Sun Dec 09, 2018 11:20 pm

i used to have one of these very interesting machines, think i have still got a reel for it
drivatest 001.jpg

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gameswat
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Re: 1933 Nervograph & Drivatest

Postby gameswat » Mon Dec 10, 2018 12:37 am

Just found the photo of the Drivatest in Australia. And two advertisement photos.
img122.jpg
Advert showing the original Nervograph.
2.jpg
Advert photo of Drivatest conversion.
2.jpg (6.8 KiB) Viewed 913 times
Driveatest.jpg
Machine located in aust.

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ddstoys
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Re: 1933 Nervograph & Drivatest

Postby ddstoys » Mon Dec 10, 2018 1:31 am

These machines are unreal can’t wait to watch you weave your magic


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