The red parts are fiber insulating
material sometimes called Fish Paper. It was also used in
the motor as an insulator.
Popular Mechanics Ad
Mysto Mfg Co. 1913

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1066809 Toy Construction Blocks, Alfred C. Gilbert (Mysto Mfg Co),
Jul 8 1913,
446/112 ; 446/113; 446/124 - the basic beam
with flanges
RE14250 Toy Construction Blocks,
Alfred C. Gilbert (A. C. Gilbert Co), Jan 16 1917, 52/634
- the Reissued patent has a change from Mysto Manufacturing
company to A.C. Gilbert Co and a change in the patent
classes. Top class 446 is Amusement Devices: Toys and 52
is Static Structures (i.e. Buildings).
1261019 Toy Building Element, Alfred C. Gilbert (A. C. Gilbert
Co), Apr 2, 1918,
403/108 ; 403/109.5 - beam with angled
flanges
1230887 Toy Building Construction, Alfred C. Gilbert (A. C.
Gilbert Co), Jun 26 1917,
446/108 - roof construction
1232463 Toy Building Construction, Alfred C. Gilbert (A. C.
Gilbert Co), Jul 3 1917,
52/634 - box girder or I-beam
members have flanges at 90 degrees
1344632 Toy Submarine, Alfred C. Gilbert (A. C. Gilbert Co), Jun
29, 1920,
446/162 ; D21/545
1351565 Toy Submarine, Alfred C. Gilbert (A. C. Gilbert Co), Aug
31, 1920,
446/165 -
wind-up spring powered, fires
compression spring powered torpedo when thrust spring runs down.
1381985 Electric Motor, Alfred C. Gilbert (A. C. Gilbert Co), Jun
21, 1921,
310/91- Includes
vibrating
massage
1381986 Electric Motor, Alfred C. Gilbert (A. C. Gilbert Co), Jun
21, 1921,
248/660 ; 310/66 - Includes
vibrating massage
1476708 Electric Motor, Alfred C. Gilbert (A. C. Gilbert Co), Dec
11 1923,
476/64 ; 248/667- Sewing Machine
1492597 Toy Vehicle, Alfred C. Gilbert (A. C. Gilbert Co), May 6
1924,
280/248 - 4 wheel children's riding metal toy
propelled by pumping a lever to and fro, but how to steer it?
1677281 Electric Heater, Alfred C. Gilbert (A. C. Gilbert Co), Jul
17 1928,
392/429 ; 219/481; 219/536; 219/538 - parabolic
reflector type
1724470 Construction Toy, Alfred C. Gilbert (A. C. Gilbert Co),
Aug 13 1929,
446/96 ; 104/DIG.1; 123/41.1; 238/10E; 238/10R;
446/112; D21/495 - made from Erector Set parts
1763302 Construction Toy, Alfred C. Gilbert (A. C. Gilbert Co),
Jun 10 1930,
446/90 ; 446/113 -
a P58 DC motor can be
combined with shafts and gears in a number of different ways to
to turn a cable drum, or do other useful things with Erector
Sets
1815708 Construction Toy, Alfred C. Gilbert (A. C. Gilbert Co),
Jul 21 1931,
446/90 ; 446/113; 446/93; D21/542 - boat
shape made from Erector Set parts
1820660 Toy Building Construction, Alfred C. Gilbert (A. C.
Gilbert Co), Aug 25 1931,
52/731.2 ; 446/113; 52/634 - an
"L" shaped girder allows making box beam
1860835 Hoisting Apparatus, Alfred C. Gilbert (A. C. Gilbert Co),
May 31, 1932,
254/330 ; 192/18R; 254/350 - P56-G AC motor
operates two cable drums
1218076 Commutator, Alfred C. Gilbert (A. C. Gilbert Co), March 6,
1917
310/236- How the three brass segments are attached to
the fish paper disks.
1219452, Toy Motor Installation, Alfred C. Gilbert (A. C.
Gilbert Co), March 20, 1917,
74/414- Combines this motor
with control switch and gearbox.
1307094 Electric Switch, Alfred C. Gilbert (A. C. Gilbert Co),
June 17, 1919
200/11G ; 200/1V; 310/68A- Connects a
battery to the motor and filed coil in either polarity or
off. The motor can sit on top of the switch, like in patent
1219452 or the switch can be separated from the motor to provide a
remote control.
1310613 Toy Gun, Alfred C. Gilbert (A. C. Gilbert Co), Jul 22,
1919,
124/29 ; 124/39; 124/49 - hand cranked fires two
magazine fed rounds by action of spring.
Electric Switch Alfred C. Gilbert (A. C. Gilbert Co),
1323045 Toy Electric Motor, Alfred C. Gilbert (A. C. Gilbert Co),
Nov 25, 1919 [filed April 18 1916] -
Open design, like the motor at the
top of this page
that the motor has a square
mounting hole pattern and can sit on top of the switch
(1307094).
D58903 Design for a Motor Fan Guard, Alfred C. Gilbert (A. C.
Gilbert Co), Sep 6, 1921,
D23/412- formed from heavy wire
D58904 Electric Motor Casing, Alfred C. Gilbert (A. C. Gilbert
Co), Sep 6 1921,
D13/112 - two sheet metal cups joined at
the open faces, closed design.
1381985 Electric Motor, Alfred C. Gilbert (A. C. Gilbert Co), Jun
21, 1921,
310/91 - closed type for mixer, blender, fan
has to do with base and mounting
1381986 Electric Motor, Alfred C. Gilbert (A. C. Gilbert Co), Jun
21, 1921,
248/660 ; 310/66 - flexible mounting arrangements
1383616
Electric Fan, Alfred C. Gilbert (A. C. Gilbert Co), Jul 5, 1921,
416/247R
- Fan guard mounting to motor body
1407789 Beverage Mixer, O.P. Erhardt (A. C. Gilbert Co), Feb 28,
1922,
366/344 ; 68/132; D7/379- Drink Mixer &
Vibrator
1424720 Electric Switch, Alfred C. Gilbert (A. C. Gilbert Co), Aug
1 1922 [filed Nov 26 1917]
310/1 ; 105/49; 310/68A-
a different way to make the switch
in patent 1307094 using a cylinder like a commutator.
1426367 Portable Electric Motor, O.P. Erhardt (A. C. Gilbert Co),
Aug 22 1922,
173/170 ; 200/553; 310/68A- switch that can
be operated by thumb of hand holding motor
1435289 Churn or Agitator, Alfred C. Gilbert (A. C. Gilbert Co),
Nov 14, 1922,
366/248 ; 310/50; 310/91; 366/251 - milk or
eggs
1445678 Rheostat, Alfred C. Gilbert (A. C. Gilbert Co), Feb 20
1923 [Filed Jan 28 1918]
338/215 ; 338/200; 338/234- This
is for a fan and is just a power resistor that gets switched in to
cut the motor speed in half.
1457361 Container for Toy Sets and the Like Alfred C. Gilbert (A.
C. Gilbert Co), Jun 5, 1923
206/223- Box for
shipping that traps parts (probably tag board)
1476708 Electric Motor, Alfred C. Gilbert (A. C. Gilbert Co), Dec
11, 1923,
476/64 ; 248/667 - motor tilt base for driving
sewing machine flywheel
1492879 Sewing Machine Motor, O.P. Erhardt (A. C. Gilbert Co), May
6, 1924,
476/64 ; 248/646 - friction drive
1523764 Electric Motor, Alfred C. Gilbert (A. C. Gilbert Co), Jan
20, 1925,
310/40R, - motor casing is made from two sheet
metal cups that are bolted together
1526333 Toy Gear Box, Alfred C. Gilbert (A. C. Gilbert Co), Feb 17
1925,
74/397 - bolts in front of and behind the Gilbert
DC motor
1668364 Vibrator, Alfred C. Gilbert (A. C. Gilbert Co), May 1,
1928,
601/87 -
The rotating motor shaft can a
offset disk that causes the follower to move in a circular
motion, but not rotating.
1763301
Mixing Device, Alfred C. Gilbert (A. C. Gilbert Co), Jun 10, 1930,
416/204R ; 366/344; 416/227R - small whip on end of shaft
1763302
Construction Toy, Alfred C. Gilbert (A. C. Gilbert Co), Jun 10,
1930,
446/90 ; 446/113- Cable drum and gears for crane,
etc.
1736310
Toy Building Construction, Alfred C. Gilbert (A. C. Gilbert Co),
Nov 19, 1929,
446/123 ; 446/103; 446/126- Erector set that
looks and works like a steam engine.
1786203
Ventilating Device, Alfred C. Gilbert (A. C. Gilbert Co), Dec 23,
1930,
454/210 ; 248/603; 261/30; 416/500 - fan in mounting
for window frame
1792976
Construction Toy, Alfred C. Gilbert (A. C. Gilbert Co), Feb 17,
1931,
446/112 ; 446/103- Slide Plate & Cam mechanism
1796292
Electric Motor, J Lanz (A. C. Gilbert Co), Mar 17, 1931,
310/66
- sheet metal case
1811499
Mixing Apparatus, Alfred C. Gilbert (A. C. Gilbert Co), Jun 23,
1931,
248/662 - with support for bowl
1815708
Construction Toy, Alfred C. Gilbert (A. C. Gilbert Co), Jul 21,
1931,
446/90 ; 446/113; 446/93; D21/542- ship or boat hull
shapes
1832456
Electric Motor, Alfred C. Gilbert (A. C. Gilbert Co), Nov 17
1931,
310/236 - Commutator for small AC/DC motor.
dia is > than armature
1832457 Vacuum Cleaner, Alfred C. Gilbert (A. C. Gilbert Co), Nov
17 1931,
15/323 ; 15/400; 15/422; 15/DIG.10; 383/40;
417/423.2 -
"Kirby" type fan on motor shaft
1860835
Hoisting Apparatus, Alfred C. Gilbert (A. C. Gilbert Co), May 31,
1932,
254/330 ; 192/18R; 254/350 -
uses small appliance AC-DC motor
with gears and 2 drums
1863320 Toy, E. N. Anketell, June 14, 1932
178/47- a crane
that uses this toy motor
1905462 Electric Drill or Similar Tool, Alfred C. Gilbert (A. C.
Gilbert Co), Apr 25, 1933,
173/217 ; 200/553; 408/124;
408/234 - worm gear reduction gear
1914888
Fruit Juice Extractor, Alfred C. Gilbert (A. C. Gilbert Co), Jun
20, 1933,
99/501 - uses the 1832456 electric motor
1918695 Vacuum Cleaner Motor, Alfred C. Gilbert (A. C. Gilbert
Co), Jul 18 1933,
310/89 ; 15/413; 310/258; 417/423.2 -
combined motor and fan frame also cools motor
1926441 Electric Motor, Alfred C. Gilbert (A. C. Gilbert
Co), Sep 12 1933,
310/40R ; 310/239 -
small motor for fans, hand drills,
small speed lathes, juice extractors, mixers or beaters,
etc. has to do with frame and construction and brush
holder
1938380
Electric Fan, Alfred C. Gilbert (A. C. Gilbert Co), Dec 5,
1933,
416/100 ; 310/216.127; 310/409; 310/66; 310/83 -
oscillating left-right can see
mechanism on back of motor
1953476
Automatic Machine for Assembling Electrical Plugs, Alfred C.
Gilbert (A. C. Gilbert Co), Apr 3, 1934,
29/866 ;
29/33J; 29/705; 29/748 - factory automation
1954872
Air Circulating Apparatus, Alfred C. Gilbert & A.A. Arnold (A.
C. Gilbert Co), Apr 17, 1934,
392/376 ; 392/361;
392/366; 392/429 - includes electric heater
1968218
Electric Motor, S.P. Morse (A. C. Gilbert Co), Jul 31, 1934,
310/172
- AC Induction motor
1968884 Conductor Cord Supporting and Protecting Means, Alfred C.
Gilbert (A. C. Gilbert Co), Aug 7, 1934, - keeps vacuum cleaner
cord off floor
1975934
Electric Fan, Alfred C. Gilbert (A. C. Gilbert Co), Oct 9,
1934,
416/100 ; 416/247R
- fan guard is strong enough to
use as handle to lift fan (prior wire guards bend)
2003259
Kitchen Utility Device, Alfred C. Gilbert (A. C. Gilbert Co), May
28, 1935,
99/484 ; 366/205; 366/207; 416/122; 416/246;
99/501 - Different Operations, strong, inexpensive
2003829
Mixing Apparatus, Alfred C. Gilbert (A. C. Gilbert Co), Jun 4,
1935,
366/198 -
looks like a bundt pan bowl on a
counter top mixer w/ dual eggbeater whips
2003931
Mixing Apparatus, Alfred C. Gilbert (A. C. Gilbert Co), Jun 4,
1935,
366/95 - Stand to side of bowl
2007299
Beverage Mixer, Alfred C. Gilbert (A. C. Gilbert Co), Jul 9, 1935,
366/197 - soda fountain type fixed to counter top
2007300
Kitchen Utility Device, Alfred C. Gilbert (A. C. Gilbert Co), Jul
9, 1935,
99/275 ; 366/199; 99/484
- simple, sturdy & inexpensive
- accessories for different tasks
2013783
Household Mixer, J.E. McLoughlin Jr. (A. C. Gilbert Co), Sep 10,
1935,
366/201- Mixer & Juice Extractor
2022417
Air Impeller, Alfred C. Gilbert & J Lanz (A. C. Gilbert Co),
416/95
; 416/221; D23/413 - ships screw type fan blade
RE21443 Air Impeller, Alfred C.
Gilbert & J Lanz (A. C. Gilbert Co), May 7, 1940, -
2027036 Kitchen Utility Device, Alfred C. Gilbert (A. C. Gilbert
Co), Jan 7, 1936,
366/201 - mixer with optional juicer
that fits on top, bowl sits on lazy Susan off center beaters
2030201 Toy Locomotive, Alfred C. Gilbert (A. C. Gilbert Co), Feb
11 1936
105/37 ; 104/DIG.1; 105/108; 105/172; 446/447;
446/484- A locomotive that's made from Erector Set parts and uses
this toy motor.
2031769
Kitchen Utility Device, Alfred C. Gilbert (A. C. Gilbert Co), Feb
25, 1936,
366/201 - mixer with optional juicer that fits on
top
2031770
Kitchen Utility Device, Alfred C. Gilbert (A. C. Gilbert Co),Feb
25, 1936,
366/199 - powerful & sturdy
2032571
2047025 Humidifier, Alfred C. Gilbert (A. C. Gilbert Co), Jul 7,
1936,
261/91 - less noise than others, uses the 1832456
electric motor
2070545
2091510 Motor Cooling Fan and Blower, J Lanz (A. C. Gilbert Co),
Aug 31, 1937, - hair dryer
2154653 Battery Holder, E. N. Anketell, Apr 18 1939
429/97
; 200/60; 362/120- a two "D" cell holder and on-off switch to
power lights, small motors, etc. maybe to have something
smaller than a couple of
No. 6 Dry Cells.
2157157 Optical apparatus, Norton
Anketell Edward, Gilbert
Co A C, May 9, 1939,
434/303,
359/368,
359/616,
359/399 -
to produce alternately, telescopes,
microscopes, projection apparatus, etc.
Patent 1195768 assigned to Knapp Electric and Novelty Co. of
New York

I think that Gilbert bought out Knapp.
This may be a Gilbert sewing machine
or small appliance motor. The shaft that's outside the
pulley is tapered and shows signs of being used. 0.145 big end,
0.116 small end, 0.220 len.
6 Apr 2008 - a similar looking motor on eBay was called a Knapp
motor. A little Googling of patents found the
Knapp Electric and Novelty Co. of New York. The first patent
I found assigned to them was:
1195768 Combined Reversing Switch and Brush Holder for
Dynamo-electric Machines, Carl Bergman Jr. (Knapp Electric and
Novelty Co), Aug 22 1916, 310/219 - the motor looks very
much like the Gilbert shown above with the new reversing switch
and brush holder added.