GB485023A - Improvements in apparatus for setting and cutting mitred joints - Google Patents

Improvements in apparatus for setting and cutting mitred joints

Info

Publication number
GB485023A
GB485023A GB4337A GB4337A GB485023A GB 485023 A GB485023 A GB 485023A GB 4337 A GB4337 A GB 4337A GB 4337 A GB4337 A GB 4337A GB 485023 A GB485023 A GB 485023A
Authority
GB
United Kingdom
Prior art keywords
fences
saw
block
angle
links
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4337A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HARRY RAWLINSON
Original Assignee
HARRY RAWLINSON
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HARRY RAWLINSON filed Critical HARRY RAWLINSON
Priority to GB4337A priority Critical patent/GB485023A/en
Publication of GB485023A publication Critical patent/GB485023A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G5/00—Machines or devices for working mitre joints with even abutting ends
    • B27G5/02—Machines or devices for working mitre joints with even abutting ends for sawing mitre joints; Mitre boxes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Fencing (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Sawing (AREA)

Abstract

485,023. Mitering. RAWLINSON, H. Jan. 1, 1937, No. 43. [Classes 145 (i) and 145 (ii)] A mitering - apparatus comprises two work-guides or fences A, A<1> pivotally mounted at a, a<1> adjacent the plane of cut and connected by equal links c, c<1> to a block C adapted to move in a path perpendicular to that plane, the arrangement being such that the fences and links form a hinged parallelogram and the path of the block bisects the angle between the fences, so that the angle between each fence and its link is equal to that of the mitered joint and is adjustable by moving the block in its path. In the apparatus shown in Fig. 1, the block C slides in a slot b in a baseboard B to which the pivots a, a<1> of the channelsection fences A, A<1> are secured, and which also carries adjustable guides E for a saw F. The fences are adjusted by means of a template consisting of arms d, d<2> which are pivoted together and set to the desired angle of the mitered joint. The arm d is then held on the lower flange of the guide A by means of pins a<4>, a<5> which register with apertures in it, and the block C is adjusted until the link c lies under the arm d<2>. The angle of cut determined by the fences will then be half that between the links and the fences, that is, half that of the mitered joint. The saw F may be carried by a frame F<1> having a ball-race f<1> at its lower edge engaging a rail secured to the bottom of the sawing-slot in the table, so that it may be reciprocated horizontally. The saw is movable vertically on the end members of the frame, the saw handles being formed with slots through which they pass and provided with ball-races f<6> which engage them. Equal vertical movement of the two ends is ensured by two cords, each passing from the top of one handle to the underside of the other, over pulleys g<1>, g<2>. The saw blade is attached to levers f<9> pivoted to the saw handles and adjusted by screws f<8> to tension the saw.
GB4337A 1937-01-01 1937-01-01 Improvements in apparatus for setting and cutting mitred joints Expired GB485023A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4337A GB485023A (en) 1937-01-01 1937-01-01 Improvements in apparatus for setting and cutting mitred joints

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4337A GB485023A (en) 1937-01-01 1937-01-01 Improvements in apparatus for setting and cutting mitred joints

Publications (1)

Publication Number Publication Date
GB485023A true GB485023A (en) 1938-05-13

Family

ID=9697350

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4337A Expired GB485023A (en) 1937-01-01 1937-01-01 Improvements in apparatus for setting and cutting mitred joints

Country Status (1)

Country Link
GB (1) GB485023A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2156271A (en) * 1984-03-12 1985-10-09 Wickes Building Supplies Limit Mitre block
GB2261189A (en) * 1991-10-11 1993-05-12 Brian Ellison Freeland Cutting mitre joints
US5737990A (en) * 1991-10-11 1998-04-14 Freeland; Brian Ellison Apparatus for making miter joints

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2156271A (en) * 1984-03-12 1985-10-09 Wickes Building Supplies Limit Mitre block
GB2261189A (en) * 1991-10-11 1993-05-12 Brian Ellison Freeland Cutting mitre joints
GB2261189B (en) * 1991-10-11 1995-03-01 Brian Ellison Freeland Apparatus for making mitre joints
US5737990A (en) * 1991-10-11 1998-04-14 Freeland; Brian Ellison Apparatus for making miter joints

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