Office Chair History and Design Evolution

• Thomas Jefferson invented first swiveling mechanism for office chairs
• Charles Darwin later added small wheels (casters) for mobility while working on evolution theory
• Modern office chairs maintain swivel and roll functionality
• Executive versions feature kingly dimensions, extreme plush design, serious lumbar support
• Office chairs evolved into status symbols

Office Chair Manufacturing Process

Steel Frame Construction

• Worker uses hydraulically powered machine to bend 14 gauge steel tubing
• Forms bottom cushion frame by joining ends, welding steel bars to middle
• Steel bars support seat position adjustment mechanism
• Hooks S-shaped steel springs from front to back of seat frame
• Sinuous springs create flexible web suspension system
• Positions rods laterally, clips to springs for stability/support

Back Frame Assembly

• Worker builds chair back frame including spine, lumbar support, armrest attachments
• Grinds burrs and rough spots from steel components

Upholstery Process

• Worker smooths leather hide on cutting table
• Cuts patterns following cardboard templates
• Works around natural hide flaws, making calculated decisions to minimize waste
• Single large hide provides all leather needed for one chair
• Consistent color and grain achieved by using pieces from same hide

Foam Cushioning

• Worker cuts foam cushioning for backing
• Foam density varies throughout chair:
  • More rigid foam for contoured cushioning (maintains shape)
  • Softer foam for back rest area
• Creates slits in softer back padding forming channels (design feature)
• Draws chalk lines on corresponding leather matching foam slits
• Aligns chalk lines with slits, puckers leather while sewing backing
• Forms rib pattern in upper half of chair upholstery

Final Assembly

• Adds chipboard panel, encases with foam, covers with leather upholstery
• Installs plastic cover to enclose back after seat upholstering
• Installs sliding plate mechanism for forward/backward seat adjustment
• Adds tilt and height adjustment features
• Hydraulic cylinder provides seat height adjustment, doubles as chair stem
• Cylinder swivels allowing 360-degree seat rotation
• Attaches aluminum base to cylinder
• Snaps casters into aluminum base slots
• Installs automobile-style headrest with prongs fitting into frame brackets
• Locks armrests into frame

Vino Brew Hybrid Beverage Production

Product Overview

• Vino Brew = wine + beer hybrid beverage
• Part of fledgling trend by adventurous breweries/wineries
• Merges two separate alcohol worlds creating unique drink
• Made from: Port-style sweet wine, dark strong beer (stout), brewed coffee
• Collaborative creation between winery, micro brewery, coffee producer

Beer Production Process

• Micro brewery grows 20+ different varieties of hop plants
• Hop flowers contain resins and essential oils for beer's bitter/aromatic characteristics
• Brewmaster fills mash tun tank with water
• Heats water to ~150°F, adds blend of different malts
• Malts = cereal grains (barley/corn) soaked to start germination, then dried with hot air
• Stirring malt into hot water activates enzymes converting starches to fermentable sugars
• After 1+ hours, transfers liquid (wort) to boil kettle
• Gradually adds different hop varieties
• Boils wort to kill bacteria and sterilize
• Cools wort, transfers to fermentation tank, adds yeast
• 10-14 day fermentation: yeast consumes sugars, converts to alcohol, produces CO2 bubbles
• Process transforms wort into beer

Coffee Production Process

• Coffee beans cooled quickly after roasting to prevent overcooking
• Perforated cooling pan stirs beans to dissipate heat
• Commercial grinder processes beans
• For Vino Brew: puts grounds in filter bag, saturates with cold water
• Submerges bag in water, soaks ~16 hours
• Pours finished coffee into large container

Wine Production Process

• Winemakers harvest and press grapes
• Add yeast and ferment
• Age port wine minimum 2 years in oak barrels
• Test samples from different barrels for acidity and sweetness
• Decide which wines to use for Vino Brew

Blending Process

• Wine maker and coffee maker experiment with wine amounts and different cold brew coffees
• Brewmaster measures out beer portions
• Process combines art and science
• Each batch involves playing with ingredient selection and proportions
• Taste and smell samples to evaluate: aroma, sweetness, bitterness, acidity
• Goal: harmonious blend without any single element dominating
• Replicate winning formula on large scale

Final Production

• Winery pumps selected wine from storage tanks into transport barrels
• Brewmaster pumps required wine amount into blending tank
• Pours required cold brewed coffee into blending tank
• Pumps required beer volume into tank (beer = largest proportion)
• Blends ingredients in tank
• Pumps Vino Brew into beer keg
• Injects CO2 gas for additional carbonation
• Pouring creates bubbles rising to top, producing foam (beer head)
• Final product looks/feels like regular beer but tastes distinctly different