[go: up one dir, main page]

FR1375769A - Improvement process for wood and machine screws, countersunk head - Google Patents

Improvement process for wood and machine screws, countersunk head

Info

Publication number
FR1375769A
FR1375769A FR940556A FR940556A FR1375769A FR 1375769 A FR1375769 A FR 1375769A FR 940556 A FR940556 A FR 940556A FR 940556 A FR940556 A FR 940556A FR 1375769 A FR1375769 A FR 1375769A
Authority
FR
France
Prior art keywords
wood
countersunk head
machine screws
improvement process
improvement
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
FR940556A
Other languages
French (fr)
Inventor
Romain Podolsky
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 filed Critical
Priority to FR940556A priority Critical patent/FR1375769A/en
Application granted granted Critical
Publication of FR1375769A publication Critical patent/FR1375769A/en
Priority claimed from FR995254A external-priority patent/FR1423024A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • F16B23/0015—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially rectangular, e.g. one-slot head
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B15/00—Screwdrivers
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • B25B15/004—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
    • B25B15/007—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section with blade of flat or substantially flat cross-section

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR940556A 1963-07-05 1963-07-05 Improvement process for wood and machine screws, countersunk head Expired FR1375769A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR940556A FR1375769A (en) 1963-07-05 1963-07-05 Improvement process for wood and machine screws, countersunk head

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR940556A FR1375769A (en) 1963-07-05 1963-07-05 Improvement process for wood and machine screws, countersunk head
FR995254A FR1423024A (en) 1964-11-17 1964-11-17 Improvement process for wood and metal screws

Publications (1)

Publication Number Publication Date
FR1375769A true FR1375769A (en) 1964-10-23

Family

ID=26202255

Family Applications (1)

Application Number Title Priority Date Filing Date
FR940556A Expired FR1375769A (en) 1963-07-05 1963-07-05 Improvement process for wood and machine screws, countersunk head

Country Status (1)

Country Link
FR (1) FR1375769A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4938779B1 (en) * 1968-05-28 1974-10-21
US4109691A (en) * 1977-12-21 1978-08-29 Wilson Floyd Leroy Combination torque release screw and screw driver
FR2745999A1 (en) * 1996-03-12 1997-09-19 Barthelemy Jean Paul Resorbable fastening screw, esp. for ligamentoplasty
NL2013638B1 (en) * 2014-10-15 2016-10-04 Univ Delft Tech Precision screw driver/screw assembly, screw driver and screw.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4938779B1 (en) * 1968-05-28 1974-10-21
US4109691A (en) * 1977-12-21 1978-08-29 Wilson Floyd Leroy Combination torque release screw and screw driver
FR2745999A1 (en) * 1996-03-12 1997-09-19 Barthelemy Jean Paul Resorbable fastening screw, esp. for ligamentoplasty
NL2013638B1 (en) * 2014-10-15 2016-10-04 Univ Delft Tech Precision screw driver/screw assembly, screw driver and screw.

Similar Documents

Publication Publication Date Title
CH471331A (en) Wood or machine screws
FR1365603A (en) Machine tool machining head
FR1223995A (en) Screw drive for machine tools, including drills and milling machines
FR84726E (en) Method and machine for shaping heads of bolts, screws and the like
FR1397086A (en) Decorative grid process and machine for wooden handles
FR1375769A (en) Improvement process for wood and machine screws, countersunk head
FR1123926A (en) Tool head, especially for woodworking machines
FR1384009A (en) Advanced machine tool
FR1099357A (en) Wood milling machine
FR1250510A (en) Improvements made to screw drives, in particular for machine tools
FR1505828A (en) Adjustable spindle head milling machine
FR1356234A (en) Method and machine for shaping heads of bolts, screws and the like
FR1372927A (en) Machine tool plate, snap-in
FR1423024A (en) Improvement process for wood and metal screws
FR1340052A (en) Method and machine for shaping by forging, in particular of pressed head screws
FR1376021A (en) Radiant head on milling machine
FR1418931A (en) Industrial wood debarking machine
CH444798A (en) Machine for rolling conical thread parts on screws, especially on wood screws
FR1339158A (en) Machine tool including multiple head milling machine
FR1486343A (en) Woodworking machine tool
FR1120218A (en) Advanced working head for wood debarking machine
FR1343305A (en) Method of forming blanks, for example head screws
FR1471004A (en) Manufacturing process for new head keys
FR1192799A (en) Bar turning head for bar turning machine
FR1312331A (en) Log debarking machine