LAW WOODEN CLOCK 4 · PDF filesht 1 of 10 shts not to scale law wooden clock 4 all dimensions...

3514

.50

B-B

B

Bwww.woodenclocks.co.uk

SHT 2 OF 10 SHTS

Scale 1:2 UOS

LAW WOODEN CLOCK 4

ALL DIMENSIONS IN MM3rd ANGLE PROJECTIONUNTOLERANCED DIMS +/- 0.5

JAN 2002Designed by:BRLAW

Assembly clock 4

SHT 1 OF 10 SHTS

Not to Scale

LAW WOODEN CLOCK 4


JAN 2002Designed by:BRLAWwww.woodenclocks.co.uk

Exploded view

17

31

27

13

2

4

38

15

22

23

19 2618

28

39

1

4

6

13

20

3

4

41

36

37

37

34

35

33

7

4

8

12

25

24

1014

11

9

5

40

29

30

ITEM NO.QTY. PART NO. DESCRIPTION1 1 Back2 1 Front3 1 Cross bar4 6 Bush5 1 Escapement shaft6 1 Escapment wheel Flange with pins7 1 Spindle for Gear with 56 teeth8 1 Gear with 56 teeth9 1 Ratchet

10 1 Pawl11 1 Ratchet pin12 1 Spindle for Gear with 48teeth13 2 Gear with 48 teeth14 1 Cordpulley15 1 Peg17 1 Clock dial18 1 Cord wrap19 1 Foliot20 1 Hanger22 1 Verge23 1 Verge bush24 1 Vergeinfill25 1 Verge support26 1 Cord27 1 Wedge28 2 Foliot weight29 2 Foliot weight insert30 1 Sleeve for 48T31 1 Hand33 1 Wedge small34 1 Big weight35 1 Small weight36 1 Rope37 2 Ring38 1 Pin for hand39 1 Top brace40 1 pin for verge41 1 Bottom brace

6

Bush - brass or nylon 6-off4

3

4

2

www.woodenclocks.co.uk

SHT 3 OF 10 SHTS

Scale 1:1 UOS

LAW WOODEN CLOCK 4


JAN 2002Designed by:BRLAW

Frame details

4 8

4 43.16

81.06

38

30.06

254

10

12

6

12126 6044

4644 12

2 Front frame 1-off

30100 6

R6

34 Large weight approx 600 gms 1-off

3.82

2.39

°

33 Small Wedge 2-off

4

4

4

405.45

81

43.16

4727

12

10 12

2790

140.92

40 30

40

44 4

1 Back frame 1-off

14.17

2.02

5.55

°

8

8.81

4.50

91.23

34.7

0

24.4

0

147.62

12

4

4.50

21.7

8

3 Cross bar 1-0ff

3°

2.68

27 Wedge 1-off

3.6060

3.60R

35 Small weight approx 110 gms 1-off

15

10.5

0

4

18

R9

Verge support 1-off25

3.20

Pin for hand 1-off38

4

12

Peg 1-off15

8

31

6

12

6

6

4

27

20

2.91

1°

4.80

3

SHT 4 OF 10 SHTS

Scale 1:1 UOS

LAW WOODEN CLOCK 4



Braces

70

6

4

90.4

9

95.42

86

R4

Top brace 1-off16

95.50

68.6

5

2

1

86.64

4.50

3

18

Bottom brace 1-off3218

27

12

6

4

168

67.50

SHT 5 OF 10 SHTS

Scale 1:1 UOS

LAW WOODEN CLOCK 4



Dial

88

Dial - make from 6 equal segments. 1-off17

A

A

6

A-A

5

6

R40

B-B

9.1212

R

67

Hand 1-off31

72

12

7.50°2.20

7R

65

Gear with 48 teeth 2-off13

B

B

9.501.50

6

E-E

SHT 6 OF 10 SHTS

Scale 1:1 UOS

LAW WOODEN CLOCK 4



Crown wheel

3.50

1.50

1.506

12

13

14

6

3020

19 7

6

3°

2

21

54

6

6

60

80

C-C

Steelpin Steel

pin

Crown wheel 1-off

Cown wheel shaft 1-off

6

5

E

E

C C

Brass rod

48

52

R1

View on N

9.50

67.5

0

SHT 7 OF 10 SHTS

Scale 1:1 UOS

LAW WOODEN CLOCK 4



Centre wheel

2

28

18.8

5

13 14

5 1.50

1.50

812

6

80

15.50

19

19

16

3°

12

G-G

Gear with 48 teeth 2-off

Shaft for gear with 48 teeth7

13

F

F

G G

F-F

2.2072

65 7.50°

7R

1.06

7

77

R25.

25

20R

R31

3.50

28.0

5

7.87

25.5

9°

2

R5

R

25.96

Pawl 1-off10

6

Ratchet pin 1-off11

6

12

4

7

14

16°

27

12

4

J-J

80

8

1.50

20

28

12

186

6

12

SHT 8 OF 10 SHTS

Scale 1:1 UOS

LAW WOODEN CLOCK 4



Drive wheel

5.578

9

10

14

11

1.50

Shaft for gear with 56 teeth 1-off7

25

30°

23

R

12 Ratchet 1-off9

5

6.43

°

75

R

82432

Gear with 56 teeth 1-off8

12

45

Cord pulley 1-off14

J

J

4.26

6

50

8328

R1

H H

6

8

412

23 Verge bush 1-off

H-H

20

6

R

10.18

I-I

3.25

23.5

0

2

R

6

24 Verge insert 1-off

I I

SHT 9 OF 10 SHTS

Scale 1:1 UOS

LAW WOODEN CLOCK 4



Verge

2

2

1

29

22

29

Verge bush and Foliot to be fitted to the Hanger beforebending the end of the Hanger

5.79

7

1.501.50R1

7

Foliot 1-off19

20

21 Pin for verge 1-off

Adjust combine weight toapprox 8gms

8

28 Foliot weight 1-off

73

3

R1.2

5

20 Hanger 1-off

8

16

28

20

19

23

24

21

29 Foliot eight insert 1-off

5.50

18

7

2

40°

2

Verge 1-off22

NotesSHT 10 OF 10 SHTS

Scale 1:1 UOS

LAW WOODEN CLOCK 4



Woodenclock Clock 4 Notes

1. Use close-grained timber such as Beech planed down to a thickness of 6 mm for all components unless otherwise stated.

2. Details of the dial numerals are shown for guidance only, the actual

form of the numerals is left to your own discretion. They can be applied by painting or as relief numerals cut from thin sheet.

3. The hand is again given for guidance only, although in this instance

it is drawn to size so that you can copy it if you wish. It should in any event be cut from thin sheet.

4. Where the components are drawn to 1:1 scale you can attach the

drawing to the timber using a low tack adhesive, and cut around the profiles. Great care should be taken with this approach when cutting the gear teeth because they need to be cut very accurately to avoid problems when assembling the clock

5. The frame components i.e. Back, Cross bar, Top and Bottom braces

should be glued together. The front, verge, and Dial should also be glued.

6. The clock is adjusted for accuracy by moving the Foliot weights in or

out along Foliot until the best accuracy is achieved. Please note that the clock will never be more accurate than 1 hour per day.

7. The pitch of the gears is controlled by the drilling of the hole centres

in the front and back frames. It may help to delay the drilling of these holes in the frames until after the gears are first cut and then linished to size. At this point it would help to mount them on two separate pieces of wood and test there free movement one to the other and measure the centre distance between them, so that the hole centres can be drilled at this dimension rather than the theoretical dimension on the drawing.

8. The profiling of the larger gears is not necessary to the functioning

of the clock, and can be carried out at the discretion of the clock builder.

9. The verge construction has the Hanger formed with a bent end so

as to secure it into the Verge in the correct position, because of this the Verge bush and the Foilot have to be fitted to the Hanger before it is bent. An alternative to this is to dispense with the bend altogether and simply drill a hole in the top of the Verge for the Hanger to fit in, and then pin the Verge and the Foliot in the correct positions. Dimensions are given for this on sheet 2. This also saves having to make and fit the verge in-fill piece.

10. The Verge assembly is fitted after the gears have been located on

the back frame. It is fitted by lifting the verge bush and sliding the

LAW WOODEN CLOCK 4 · PDF filesht 1 of 10 shts not to scale law wooden clock 4 all dimensions...

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