[PRCo] Re: Brakes on Pittsburgh PCCs

Boris Cefer westinghouse at iol.cz
Sun Jul 9 00:54:21 EDT 2006


Fred, thank you for your effort! I assume it is a typewriter file. We need
more such papers!

What is of particular interest - car 1600 is still on the list and with GE
motors and the date of the Homewood fire is Oct. 1955!

Boris

----- Original Message -----
From: "Fred Schneider" <fwschneider at comcast.net>
To: <pittsburgh-railways at dementia.org>
Sent: Sunday, July 09, 2006 3:07 AM
Subject: [PRCo] Brakes on Pittsburgh PCCs


> I found a rather unique document in my files that lists brake
> apparatus on Pittsburgh PCCs as of 6 December 1955.   It is copied in
> its entirety below.
> Jim Holland and Boris Cefer will have a field day!!!
>
> BCC to Hamley, Wells, King, Skrbin,Lybarger,  and Orient.  Yins may
> want to file this in the shop for the day when you have to work on
> 1138 or 14whatever or 1799 ex 1613 or whatever it was.   Judging from
> this, our 1400 is a stock 1400 with B2 trucks and more or less
> regular braking but I notice that a lot of the 1400s were rewired for
> EDB.
> ____________________________________________________________________
>
>
>                                             12-6-55
> Cars with Special Equipment, Types of Brake Valves and Lock Out Relays
> on P. C. C. Cars
>
> M-11       1500 type trucks, 1000 type Westinghouse Motors.
>
> 1230       1500 type trucks, 1500 type Westinghouse Motors.   Exended
> dynamic braking
>                   and motor mounted drum brakes.   Wiring changes see
> Drwg. No. 7D-7490.
>
> 1224 to 1274 incl.   Extended dynamic braking and Westingthouse Air
> Brake Co., pinion
>                   mounted drum brakes.   (except car 1230).   For
> wiring changes see Drwg. 77-7720
>                   except cars 1225 and 1250   see Drwg. 7D-7445.
>
> 1278        1600 type trucks, 1600 type G. E motors.  Extended
> dynamic braking to 2 M/hr.
>
> 1401        Accelerator cam switch sequence is different than other
> 1400 cars.  Wiring changes -
>                   see Dwrg. 7D - 7199.
>
> 1410        Westinghouse Air Brake Co., pinion mounted drum brakes.
> Extended dynamic
>                   braking.   For wiring changes see Drwg. No. 7B-7453.
>
> 1429        Westinghouse Air Brake Co., pinion mounted drum brakes.
> Extended dynamic
>                    braking.
>
> 1430         Westinghouse Air Brake Co., pinion mounted drum
> brakes.   Extended dynamic
>                    braking.
>
> 1431         1400 Type trucks with 1600 type Westinghouse motors.
> Clark Equipment Co.
>                    motor mounted drum brakes and extended dynamic
> braking.
>
> 1444         Westinghouse Air Brake Co., pinion mounted drum
> brakes.   Extended dynamic
>                    braking.
>
> 1445         Westinghouse Air Brake Co., pinion mounted drum
> brakes.   Extended dynamic
>                    braking.
>
> 1446         Westinghouse Air Brake Co., pinion mounted drum
> brakes.   Extended dynamic
>                    braking.   For wiring changes see Drwg. No. 7D-7386.
>
> 1447        1600 type trucks with Westinghouse motors.    Extended
> dymamic braking and
>                    Clark Equipment Co., motor mounted drum brakes.
> For wiring changes see
>                    Drwg 7Dj-7318
>
> 1475-1499   Increase speed of MG set from 1700 to 2200 RPM., See
> Drwg. 7A-8059.
>
> 1480         W. A. B. Co., pinion mounted drum brakes.  Extended
> dynamic braking.
>                    Increased speed of MG set from 1700 to 2200 RPM.
>
> 1483        Extended dynamic braking and wiring changes. - see Drwg.
> No. 7D- 7064.
>                   Increased speed of MG set from 1700 to 2200 RPM.
> Motor Generator
>                   control connection diagram, see Drwg. 7B-7724.
> 1600 Clark trucks, 1600
>                   GE motors and Clark Equipment Company motor mounted
> drum brakes.
>
> 1484       Westinghouse Air Brake Co., pinion mounted drum brakes.
> Extended
>                  dynamic braking and increased speed of MG set from
> 17600 to 2200 RPM.
>
> 1485       Westinghouse Air Brake Co., pinion mounted drum brakes.
> Extended
>                  dynamic  and increased speed of MG set from 17600 to
> 2200 RPM.
>
>
>
> End Page 1
>
>
> 1500       Clark Motor Mounted 1600 type.  Extended Dynamic Braking.
>
> 1501       Westinghouse Air Brake Co., pinion mounted drum brakes,
> 1400 type
>                  Westinghouse motors, Extended Dynamic Braking.
>
> 1502       Westinghouse Air Brake Co., pinion mounted drum brakes,
> 1400 type
>                  Westinghouse motors, Extended Dynamic Braking.
>
> 1503       Westinghouse Air Brake Co., pinion mounted drum brakes,
> 1400 type
>                  Westinghouse motors, Extended Dynamic Braking.
>
> 1504       1600 type trucks, 1600 type Westinghouse motors.   Extended
>                   dynamic braking and Clark motor mounted drum brakes.
>
> 1505       1600 type trucks, 1600 type Westinghouse motors.   Extended
>                   dynamic braking and Clark motor mounted drum brakes.
>
> 1550 to 1564 incl.  Increase speed of MG set from 1700 to 2200 RPM.
> See drwg.
>                  7A-8059,
>
> 1615 to 1619 incl., 1645-46 and 47 have St. Louis B-3 trucks.  W. A.
> B. motor mounted drum brakes.
> (Note 1648 may have also be so equipped but it was lost in the Oct.
> 1955 Home-
> wood fire.)
>
> 1630       Electric controlled ventilating system.   See Drwg. No.
> 7B-7799.
>
> 1683.      Modified wiring - see Drwg. No. 7D-7578.
>
>                   Brake Valves - W.A.Brake Co.
> R-8    on  1000-1100-1400 and 1500 series PCC cars
> R-10 on 1200
> R-12 on 1600 except 1615-19-17-18-19-45-46 and 47.
> Modified R12 on 1615,16-17-18-19-45-46 and 47 (see Drwg. 7B-7654)
>
>                   Lock Out Magnet Valve - G. E. Corp.
>                      (Non Extended Dynamic Braking)
> Car Nos.
> 1000-1100 (West & GE)                         17 MV 15 A1
> 1200  (West. & GE)                                  17 MV 22 A5
> 1400  (West  & GE)                                  17 MV 15 A2
> 1500  (West & GE)                                   17 MV 15 C6
>
>                   Lock Out Magnetgnet Valve - G. E. Corp.
>                     ( Extended Dynamic Brake Cars)
> Car Series:
> 1200, 1400, 1500, 1600 (West, GE)     17 MV 15 C11
> Except cars 1615, 16, 17, 18, 19, 46 and 17   17 MV 22 A
>
>                  Lock Out Relay - Westinghouse Corp.
> Car Series
> 1700 (Westinghouse only)                         URA-12
>
> (S) A. J. Marshall                      (S) Jos. J. Naegelen
>
> End Page 2




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