Refurbishing an 1850s Scottish high clock casing - First Installment
In the world of antique clock restoration, choosing the right repair methods is crucial in maintaining the historical integrity and value of a piece. This is particularly true for an 1850s Scottish tall case clock with an English bell strike movement, which recently underwent a meticulous restoration process.
The clock, purchased from an estate auction in early 2020, presented several structural issues. Age cracks were found in three locations: the inner bonnet arch, a section at the top part of the waist, and the bonnet backboard. The backboard, in two sections and not secured well with nails and tacks, required reinforcement.
To address these challenges, the restorer considered both traditional and modern methods. Preserving authenticity was a key factor. Using period-appropriate techniques and materials aligns with conservation ethics and helps maintain the clock’s value and provenance.
Traditional joinery, hand tools, and period-correct components were employed for woodwork repairs. Careful cleaning, gentle re-gluing with hide glue, and traditional wood repairs were carried out. For rusted metal parts or movement components, traditional clock oils were used for lubrication.
The corner blocks, fashioned from old softwood and glued and clamped in place, secured the backboard. A 4′′ top piece and longer vertical section were added to the existing crosspiece to hide the gap and stiffen the backboard. The strips were glued and screwed to the backboard, with forged iron nails, not common nails, mimicking the original construction.
Yellow carpenter's glue was used for maximum bonding strength, while hot hide glue was used for minor mends. Modern adhesive was used sparingly for structural repairs, ensuring longevity without compromising the clock's character.
Pilot holes were drilled into the wood, and 3/4 inch slotted wood screws were used to attach the side to the corner blocks, while 1 1/4 inch wood screws were used to attach the backboard to the block. A crosspiece was tacked horizontally to secure the two sections divided by the crack in the bonnet backboard.
This approach aligns with best practices in horological conservation of clocks from this period and provenance. Every step of repair was documented, preserving original patina and finishes when possible.
By carefully balancing conservation and repair, the restorer ensured that this 1850s Scottish tall case clock, with its English bell strike movement, remains a testament to its historical origins while functioning reliably for future generations.
Practical Tips:
- Work slowly and methodically when dismantling the case or movement to avoid damage.
- Use traditional hide glue or animal glue for woodwork repair to make future reversibility easier.
- For rusted metal parts or movement components, careful cleaning and lubrication with traditional clock oils is preferable.
- Document every step of repair, preserving original patina and finishes when possible.
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