Collection search - St. Lawrence River Ice Investigation

Record information – Brief

1

St. Lawrence River Ice Investigation

Item number (ISN):

182893

Hierarchical level:

Item (Accession level)

Date:

1925

Item number (ISN):

182893

Type of material:

Moving images

Found in:

Archives / Film, Video and Sound

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Record information – Details

Fonds/collection:

ONTARIO HYDRO

Accession:

1991-0236

Media:

Film

Part:

1 of 1

Production date:

1925

Production company:

Associated Screen News Ltd.

Production credit:

photography, Roy Tash

Cast credit:

Howard T. Barnes, Technical Staff, W.A. Bentley, W.S. Connolly, J.W. Hayward, B.B. Tucker

Sponsor:

Hydro Electric Power Commission of Ontario

Description:

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A film study of the nature and action of ice and controlling ice conditions in placing power structures. Types of ice, animation illustrates ice formation which deepens and straightens St. Lawrence River channels. The ice at Cornwall. Dr. barnes shows the newly designed mercury microthermometer and test methods. Ice observation cabin at Lock No. 2. Instruments for measuring radiation and humidity.~Preparing a cut to produce an artificial ice jam at Dry Island. The use of salt, gravel, sawdust, sand and coal dust to prevent ice freezing.~Wilson A. Bentley, snowflake expert, makes microscopic pictures of ice crystals. Snowflake studies at Morrisburg and window frost studies at Cornwall and Morrisburg.~Ice jam at pulpwood dock, Waddington, New York. Heat mines radiate intense heat which causes ice to explode. Placing ignition wires, firing cherry and mine. Measuring area affected by the first explosion on the Waddington jam February 24, 1925. Firing first and second mines at the Chimney Island ice jam below Ogdensbury, New York, March 13, 1925. One millin tons of ice moved down the river in 9 hours and a still photograph taken on March 24, ten days later, shows the south channel entirely cleared of ice.

Notes:

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1. Dr. barnes is research ice expert and senior professor of physics McGill University, Montreal.~2. H.E.P.C.O. is now Ontario Hydro.~3. 1924-1925 on opening titleboard.

Detailed holdings information:

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Vault ISN:

174946

Format:

FILM

Location number:

9108-0390
9108-0391
9108-0392

Number of items:

3

Kind of sound:

SIL

Stock:

REL PRT

Max. shrinkage:

0.8%

Made from:

DEPOSIT

Status:

MASTER

Vault ISN:

187074

Format:

VIDEO

Location number:

V1 9203-0018

Number of items:

1

Status:

REF

Vault ISN:

196863

Format:

FILM

Location number:

9207-0038
9207-0039
9207-0040

Number of items:

3

Kind of sound:

SIL

Stock:

DUPE

Technical description:

NEG

Made from:

9108-0390
9108-0391
9108-0392

Status:

PRT.ELEM

Vault ISN:

199523

Format:

FILM

Location number:

9208-0089
9208-0090
9208-0091

Number of items:

3

Kind of sound:

SIL

Stock:

ANS PRT

Made from:

9207-0038
9207-0039
9207-0040

Status:

REF

Vault ISN:

199528

Format:

FILM

Location number:

9208-0092
9208-0093
9208-0094

Number of items:

3

Kind of sound:

SIL

Stock:

DUPE

Technical description:

POS

Made from:

9207-0038
9207-0039
9207-0040

Status:

MASTER

Vault ISN:

887457

Format:

VIDEO

Location number:

182893-001
182893-002
182893-003

Number of items:

3

Kind of sound:

SIL

Duration:

32:17

Made from:

9108-0390
9108-0391
9108-0392

Status:

MASTER

Vault ISN:

887458

Format:

VIDEO

Location number:

182893.MOV

Number of items:

1

Kind of sound:

SIL

Duration:

32:17

Made from:

9108-0390
9108-0391
9108-0392

Status:

REF

Vault ISN:

887459

Format:

VIDEO

Location number:

182893.MP4

Number of items:

1

Kind of sound:

SIL

Duration:

32:17

Made from:

9108-0390
9108-0391
9108-0392

Status:

REF

Vault ISN:

991314

Format:

VIDEO

Location number:

V4 9203-0031

Number of items:

1

Kind of sound:

SIL

Made from:

8808-0473
8808-0474
9108-0390
9108-0391
9108-0392

Status:

MASTER
Ordering and viewing options

Conditions of access:

Open

Consultation copy number:

V1 9203-0018

Reproduction access:

with the permission of Ontario Hydro

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