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Tube-Track Pedal Saw Table: Any Portable Saw Clamped Upside Down on a Carriage Rolling Inside Slotted Tubes (Tomlinson & Bearden, 1931)
William A. Tomlinson and Howell B. Bearden · Public domain
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Tube-Track Pedal Saw Table: Any Portable Saw Clamped Upside Down on a Carriage Rolling Inside Slotted Tubes (Tomlinson & Bearden, 1931)

William A. Tomlinson and Howell B. Bearden of Phoenix, Arizona, received US 1,813,783, dated 7 July 1931, for a table that turns any portable power saw into a table saw. The saw is clamped upside down on a carriage, its blade through the slot of a top hinged at the rear. The carriage rolls on ball-bearing rollers inside two steel tubes slotted along their undersides. A pedal pushes it forward through the work, leaving both hands free, and a spring brings it back. With the pedal left alone it works as a fixed saw, and the saw unbolts for hand use. The patent gives no sizes; every size here is ours.
Juu
About 4 days

Maagizo

1

Pedal, link and travel

Inapakia daftari la Jupyter…
2

Read US 1,813,783

"By using the pedal in the manner above set forth both hands of the operator will be free for manipulating the work, which is especially desirable when pattern work is to be sawed."
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Angle-iron frame

Bolt a frame of steel angle 900 x 500 mm, 850 high: four corner legs 1, side and end bars 2, 3 halfway up and 4, 5 at the top, flat-bar diagonal braces 6 at the top corners, a cross bar 7 between the rear legs above the middle bars, and a cross bar 8 between the front legs at the bottom. Drill a vertical row of 9 mm holes 13, 25 mm apart, near the top of each leg, for the track hangers.

Vifaa kwa hatua hii:

Chuma cha pembe cha chuma lainiChuma cha pembe cha chuma laini6 vipande
Pau Bapa la Chuma LainiPau Bapa la Chuma Laini1 kipande
Mkusanyiko wa bolti za pembe sitaMkusanyiko wa bolti za pembe sita40 vipande
Nati ya pembe sitaNati ya pembe sita40 vipande
Washa bapaWasha bapa40 vipande

Zana zinazohitajika:

Msumeno wa chumaMsumeno wa chuma
Kisaga cha pembeKisaga cha pembe
Kekee cha NguzoKekee cha Nguzo
Seti ya vichimbuziSeti ya vichimbuzi
Kigwe cha KatikatiKigwe cha Katikati
Skwea ya mchanganyikoSkwea ya mchanganyiko
Tepi ya kupimiaTepi ya kupimia
Spana inayoweza kurekebishwaSpana inayoweza kurekebishwa
Miwani ya usalamaMiwani ya usalama
4

Slotted tube tracks

Cut two 900 mm lengths of 42 mm steel tube 9, 10 and cut a 10 mm slot 14 along the underside of each, stopping 20 mm short of the ends; file the slot's edges smooth. Bolt a flat-bar hanger 11 to each end of each tube and hang the tubes along the frame's sides from the legs with bolts 12 through the row of holes, at the height that suits your saw. Put a short coil spring 39 in each end of each tube as a buffer.

Vifaa kwa hatua hii:

Bomba la duara la chuma lainiBomba la duara la chuma laini2 vipande
Pau Bapa la Chuma LainiPau Bapa la Chuma Laini1 kipande
Coil SpringCoil Spring4 vipande
Mkusanyiko wa bolti za pembe sitaMkusanyiko wa bolti za pembe sita8 vipande
Nati ya pembe sitaNati ya pembe sita8 vipande

Zana zinazohitajika:

Msumeno wa chumaMsumeno wa chuma
Kisaga cha pembeKisaga cha pembe
Seti ya tupaSeti ya tupa
Kibano cha meza ya kaziKibano cha meza ya kazi
Kekee cha NguzoKekee cha Nguzo
Seti ya vichimbuziSeti ya vichimbuzi
Spana inayoweza kurekebishwaSpana inayoweza kurekebishwa
Kipima-unene cha dijitali cha inchi 6Kipima-unene cha dijitali cha inchi 6
Miwani ya usalamaMiwani ya usalama
5

Carriage and rollers

Cut the carriage 30 from 5 mm steel plate, as wide as between the tubes. At each corner bolt an upright flat-bar standard 31 that reaches up through a tube's slot, and on its top a short bar 33 across inside the tube carrying a 22 mm ball bearing 32 at each end on an M8 bolt with a lock nut. Slide the rollers into the tubes from the ends, the standards hanging down through the slots, and bolt them to the carriage.

Vifaa kwa hatua hii:

Bamba la chuma lainiBamba la chuma laini1 kipande
Pau Bapa la Chuma LainiPau Bapa la Chuma Laini1 kipande
Fani ya MipiraFani ya Mipira8 vipande
Mkusanyiko wa bolti za pembe sitaMkusanyiko wa bolti za pembe sita16 vipande
Nati ya Kufungasha yenye NailoniNati ya Kufungasha yenye Nailoni8 vipande
Washa bapaWasha bapa16 vipande

Zana zinazohitajika:

Msumeno wa chumaMsumeno wa chuma
Kisaga cha pembeKisaga cha pembe
Kekee cha NguzoKekee cha Nguzo
Seti ya vichimbuziSeti ya vichimbuzi
Seti ya tupaSeti ya tupa
Kibano cha meza ya kaziKibano cha meza ya kazi
Spana inayoweza kurekebishwaSpana inayoweza kurekebishwa
6

Pedal and springs

Pivot a lever 21 of steel flat bar on the front bottom cross bar 8, with an arm 22 to the side carrying the pedal 20 and a brace 23 from arm to lever. Join the lever's top to the carriage's front with a flat-bar link 24. Hook a return spring 25a from the rear cross bar 7 to the lever partway up.

Vifaa kwa hatua hii:

Pau Bapa la Chuma LainiPau Bapa la Chuma Laini2 vipande
Ufito mviringo wa chuma lainiUfito mviringo wa chuma laini1 kipande
Springi ya kuvutaSpringi ya kuvuta1 kipande
Mkusanyiko wa bolti za pembe sitaMkusanyiko wa bolti za pembe sita4 vipande
Nati ya Kufungasha yenye NailoniNati ya Kufungasha yenye Nailoni4 vipande

Zana zinazohitajika:

Msumeno wa chumaMsumeno wa chuma
Kekee cha NguzoKekee cha Nguzo
Seti ya vichimbuziSeti ya vichimbuzi
Kibano cha meza ya kaziKibano cha meza ya kazi
Spana inayoweza kurekebishwaSpana inayoweza kurekebishwa
7

Mount the saw and the top

Turn the circular saw upside down on the carriage and bolt it by its base plate with bolts and wing nuts, so it lifts off for hand use; his T-bolt 34 and hook bolts 36 gripped the saw's handles, which modern saws do not suit. Make the top 42 of plywood on a steel angle frame 44, slotted along the blade's path, and hinge its rear edge to the frame so it swings up to reach the saw. Fit a catch 47 to lock it down and a folding flat-bar brace 49 to prop it up.

Vifaa kwa hatua hii:

Msumeno wa mviringoMsumeno wa mviringo1 kipande
Mkusanyiko wa bolti za pembe sitaMkusanyiko wa bolti za pembe sita4 vipande
Nati ya mabawaNati ya mabawa4 vipande
Bati la mbao za kubandikaBati la mbao za kubandika1 kipande
Chuma cha pembe cha chuma lainiChuma cha pembe cha chuma laini1 kipande
Bawaba ya mlangoBawaba ya mlango2 vipande
Ndoano na jichoNdoano na jicho1 kipande
Pau Bapa la Chuma LainiPau Bapa la Chuma Laini1 kipande
Parafujo za mbaoParafujo za mbao16 vipande

Zana zinazohitajika:

Msumeno wa KupindaMsumeno wa Kupinda
Kekee cha BetriKekee cha Betri
Seti ya vichimbuziSeti ya vichimbuzi
Msumeno wa chumaMsumeno wa chuma
Spana inayoweza kurekebishwaSpana inayoweza kurekebishwa
Skwea ya mchanganyikoSkwea ya mchanganyiko
8

Cut

Lock the top down. Set the saw's depth so the blade stands 10 mm above the board. Place the board on the top in front of the blade, start the saw and press the pedal: the carriage rolls the running blade through it while both hands hold the work. Let the pedal up and the spring returns it. For ripping, leave the carriage still and feed the board.

Zana zinazohitajika:

Miwani ya usalamaMiwani ya usalama
Kinga ya masikio (vifunika masikio, SNR 30 dB)Kinga ya masikio (vifunika masikio, SNR 30 dB)
9

Troubleshooting

Tube-track saw table troubleshooting.

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History and honest limits

**William A. Tomlinson** and **Howell B. Bearden** of Phoenix, Arizona, US 1,813,783, dated 7 July 1931, filed 5 December 1928. They claimed a top with a slot, "laterally spaced longitudinally extending tubular tracks" below it, "slotted longitudinally on their lower faces", and a saw carriage with upstanding roller-carrying hangers in the tracks, their shanks through the slots. Their saw is held by its handles; ours by its base plate. Their frame is angle iron, as ours. They give no sizes; every size here is ours.

Vifaa

18

Zana Zinazohitajika

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Mchoro huu unatengeneza

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Msumeno wa meza

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Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

Portable Bench Saw: A Lift-Out Power Unit on Trunnions, Its Motor on Spring Bars, Under a Tilting Platform (Henkel, 1928)

Portable Bench Saw: A Lift-Out Power Unit on Trunnions, Its Motor on Spring Bars, Under a Tilting Platform (Henkel, 1928)

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Twin-Saw Table: A Rip Saw and a Crosscut Saw at Opposite Corners, One Motor, Each Depth Set by Tilting the Top (Gottschalk, 1926)

Twin-Saw Table: A Rip Saw and a Crosscut Saw at Opposite Corners, One Motor, Each Depth Set by Tilting the Top (Gottschalk, 1926)

na ForgeNO

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