On October 7, 2021, a SEPTA bus traveling south on Germantown Avenue came into contact with the elbow joint of an aerial lift holding painters doing work on the “One West”midrise complex just above Hartwell Lane. The roof of the SEPTA bus appeared to be badly mangled and a SEPTA employee at the scene said that a “crane” had “fallen on the bus.” Matt Spector, VP of Operations for Bowman Properties, owner of the property, in a statement released later on social media, said that Bowman has owned and operated the lift to do maintenance on its properties for years without incident and that the lift was parked, in contact with the curb, surrounded by safety cones and stationary at the time of impact. “The lift didn’t fall. The bus ran into the elbow joint that was sticking out over the street. I happened upon the scene not long after it occurred, when the lift was still there,” posted a Mount Airy neighbor on social media. “Fortunately there were no major injuries,” added David Hoylman, Director of Leasing for Bowman. Spector declined to share security camera footage of the incident or elaborate about the injuries to Bowman personnel, passengers or driver or about precautions being taken to prevent future, potentially serious injurious, collisions of this kind. A right-to-know request has been filed with SEPTA. See more photos here.
This video depicts SEPTA’s flotilla-like “wire train” renewing the catenary wire above the tracks on the R7 Chestnut Hill East line as it works its way past the Mount Airy train station. The wires become worn after decades of use. The workers are taking down old catenary wire, dropping and sliding it into the gondola for scrap metal. The new catenary wire is already in place and running trains. Naturally, for the safety of the workers, the catenary is de-energised and grounded.
The following description is from a SEPTA blog post of July 13, 2017
“In our world, a catenary is a system of overhead wires used to supply electricity to a locomotive, streetcar, or light rail vehicle which is equipped with a pantograph. The pantagraph presses against the underside of the lowest overhead wire, the contact wire.
Current collectors are electrically conductive and allow current to flow through to the train and back to the feeder station through the steel wheels on one or both running rails. Unlike simple overhead wires, in which the uninsulated wire is attached by clamps to closely spaced crosswires supported by poles, catenary systems use at least two wires. The catenary or messenger wire is hung at a specific tension between line structures, and a second wire is held in tension by the messenger wire, attached to it at frequent intervals by clamps and connecting wires known as droppers. The second wire is straight and level, parallel to the rail track, suspended over it as the roadway of a suspension bridge is over water.
Simple wire installations are common in light rail, especially on city streets, while more expensive catenary systems are suited to high-speed operations.
The Northeast Corridor in the United States has catenary over the 600 miles (1000 km) between Boston, Massachusetts and Washington, D.C. for Amtrak's high-speed Acela Express and other trains. Commuter rail agencies including MARC, SEPTA, NJ Transit, and Metro-North Railroad utilize the catenary to provide local service.
Overhead line equipment can be adversely affected by strong winds causing swinging wires. Power storms can knock the power out with lightning strikes on systems with overhead wires, stopping trains if there is a power surge. During cold or frosty weather, there is a risk of ice build-up on overhead lines. This can result in poor electrical contact between the collector and the overhead line, resulting in electrical arcing and power surges.
On the Media/Elwyn Line, we're working on replacing 17 miles of 80+ year old overhead catenary wire. We're also building/installing new catenary support poles.”
Charlie Gangloff of Top of the Hill market and a helper hoist the first Christmas tree of the season onto an upright the Monday before Thanksgiving. They expect to receive 1000 trees this season, all grown in Bloomsburg Pa, 90 miles northwest of the city. This one is a 9.5 foot Frasier Fir weighing from 75 to 100 pounds. At the end of the season, Gangloff says customers can drop off their trees through a program of the CH Business Association which will donate them to nature preserves where they provide shelter for animals. On the day after Thanksgiving, Gangloff and helpers were busily drilling holes in the bottom of the trees using a special drilling contraption that makes sure the tree will stand erect when mounted on a post. Drilling Christmas tree so it stands straight.
I finally got around to having my car's defective Takata airbag replaced and driving into the dealership, discovered that the service area had been completely renovated into a covered structure with multiple lances. Conicelli Honda in Conshohocken is one of the first in the nation to be equipped with new Hunter Engineering automated technology according to service advisor Russ Hauer. As explained by Hauer and demonstrated by Assistant Service Manager Marc Varallo, as you drive into the service area over a red plate, a laser in the device reads your tire tread depth. Simultaneously, a camera takes of a photo of your license plate; the system is tied in to the Pennsylvania Department of Transportation (PennDOT) and brings up your Vehicle Identification Number so there is no need to present your car registration for manual entry. A valet takes your car and you then walk inside the waiting area where a service agent greets you and promptly presents you with a graphic printout of the condition of your tires and whether a tire rotation or replacement are recommended. See new auto tire laser reading technology and interview here.
Watch video and interview here. An operator high atop a pneumatic asphalt paver was assisted by two "back men" (otherwise called a screed or back end operators) at the rear of the machine on a little platform slightly above street level and by a crew of about 10 holding rakes, "lutes"and shovels laying down new street "mat" in northwest Philadelphia, Chestnut Hill. One back man who has been with the streets department since 1997 explained how this new half a million dollar computer-enabled paver is much superior to the 1996 model he originally worked with. He can monitor the job on a 7 inch display as the paver lays down what appears to be a couple inch thick layer of hot steaming asphalt and smoothly seam in a new section to an existing one, in automatic or manual mode turning the levels. It's important to regulate the speed, depth of material and and create a proper crown proper sloping down to the curb edge for rainwater to drain off. And a good back man, he says, makes less work for the foot crew who finish off the leveling work.
At the Best Buy electronics store in Plymouth Meeting, PA, salesman Bill Kuhn employs a new, huge touch screen to show off the features of Samsung appliances and a miniature working model of an LG brand washing machine to demonstrate LG's "wave force " technology. Watch video interview here.
A generous school parent purchased a 3D printer for James Hilburt's math classes at the J. S. Jenks Middle School in the Chestnut Hill neighborhood of Philadelphia and Hilburt is getting the students excited about designing their own projects by printing out 3-d stackable cups, a rubik's cube-like 3d puzzle, a complete chess set and small replicas of the Disney Castle and the Eiffel Tower. To help the students understand design and construction, Hilburt is first having them build a bridge with Popsicle sticks. For the 3d printer projects, Hilburt downloads digital templates onto his computer and loads them into the printer; a rapidly moving arm lays down layer after layer of threadlike strands of melted plastic through a small nozzle head to build the creations from the ground up, taking nearly a day for the more complicated ones. Watch video here.
At a polling place on election day in Chestnut Hill, Philadelphia, voting machine technician Tony Pirrone explains how static electricity can short the voting machine and shut it down when the machine inspector touches the officer control button on the back to enable the voter to vote. After seeing one machine shut down and have to be reset several times, voters at the poll waited in line for the one good machine, not trusting that the finicky one would register their votes. Pirrone assured all who would listen that even though the machine needed to be reset repeatedly, all votes had been accurately recorded and stored on the machine cartridge which would be transported by a police officer to a central location for the official tally. Watch video here.