US1624535A - Stair square - Google Patents

Stair square Download PDF

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Publication number
US1624535A
US1624535A US33073A US3307325A US1624535A US 1624535 A US1624535 A US 1624535A US 33073 A US33073 A US 33073A US 3307325 A US3307325 A US 3307325A US 1624535 A US1624535 A US 1624535A
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United States
Prior art keywords
bars
stair
square
blades
plates
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 - Lifetime
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US33073A
Inventor
Christ A Christianson
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Individual
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Individual
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Publication date
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Priority to US33073A priority Critical patent/US1624535A/en
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Publication of US1624535A publication Critical patent/US1624535A/en
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Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/26—Implements for finishing work on buildings for mounting staircases, e.g. tools for marking steps

Definitions

  • the present invention relates to a stair square which may be used to obtain the length, treads, and rises between the walls and stair stringers, and in building circu- '5 lar stairs, it may be used as a bevel square at both ends.
  • the device is t'urther useful in obtaining the length and niiter cut .of balusters between the top and bottoni rails.
  • Figure 1 is an elevation of the device extended
  • Figure 2 is an elevation of the device folded
  • Figures 3 and 4 are sections taken on the lines 8-3 and 4-1 respectively of F ig. 2,
  • Fig. 5 is a section through the hinged joint.
  • the numerals and 5 denote a pair ot' bars, hingedtogether as at b' so that they may be swung to the positions shown in Figs. 1 and 2.
  • the hinged joint 6 is constructed to limit the swinging orn one bar-with respect to the other in van arc of 180".
  • the bars 5 and have longitudinally extending slots 7 and 7 respectively t'or receiving bolts 8 and 8 on which are threaded thulnb nuts 9 and 9. Bars 10 and 10 are pierced at Vone end by the bolts 8 and 8 respectively and have Inortises to slidably receive bars 5 and 5 respectively.
  • Plates 11 and 11 are pierced by the bolts 8 and 8 respectively and eX- tend over the bars 5 and 5 respectively and 35 bars 1()y and 10 respectively.
  • Blades 12 and 12 are formed at one end with slots 14 and 14 respectively.
  • the slotted ends ot' the blades 12 and 12 extend between the plates 11 and 11 respectively and the bars 40 10 and 10 respectively and the bolts 15 Y and 15 pierce openings in the plates 11 and 11 respectively, and the bars 10 and 10 respectively and also the slots 11 and 11 respectively.
  • Thumb nuts 16 and 16 are 45 threaded on the bolts 15 and 15 respectively.
  • the ⁇ free extremities ot the blades are beveled.
  • a device of the class described including a pair of hinged bars, a second pair otl bars slidable on the first pair of bars, means limiting the sliding ot' the bars in relation to one another and operable to hold the bars in different adjusted positions, plates on the second bars and extending over the iirst bars, a pair ot' blades, and adjustable pin and slot connections-between the blades and the second bars and the plates.

Description

c. A. cHRls'rlANsoN STAIR SQUARE Filed May 26, 1925 Patented pr. l2, 11927.
UNITED STATES PATENT OFFICE.
STAIR SQUARE.
Application filed May 26, 1925. Serial No. Y33,073.
The present invention relates to a stair square which may be used to obtain the length, treads, and rises between the walls and stair stringers, and in building circu- '5 lar stairs, it may be used as a bevel square at both ends. rThe device is t'urther useful in obtaining the length and niiter cut .of balusters between the top and bottoni rails.
In the drawing,
Figure 1 is an elevation of the device extended,
Figure 2 is an elevation of the device folded,
Figures 3 and 4 are sections taken on the lines 8-3 and 4-1 respectively of F ig. 2,
Fig. 5 is a section through the hinged joint.
Referring to the drawings in ldetail, it
will be seen that the numerals and 5 denote a pair ot' bars, hingedtogether as at b' so that they may be swung to the positions shown in Figs. 1 and 2. The hinged joint 6 is constructed to limit the swinging orn one bar-with respect to the other in van arc of 180". The bars 5 and have longitudinally extending slots 7 and 7 respectively t'or receiving bolts 8 and 8 on which are threaded thulnb nuts 9 and 9. Bars 10 and 10 are pierced at Vone end by the bolts 8 and 8 respectively and have Inortises to slidably receive bars 5 and 5 respectively. Plates 11 and 11 are pierced by the bolts 8 and 8 respectively and eX- tend over the bars 5 and 5 respectively and 35 bars 1()y and 10 respectively. Blades 12 and 12 are formed at one end with slots 14 and 14 respectively. The slotted ends ot' the blades 12 and 12 extend between the plates 11 and 11 respectively and the bars 40 10 and 10 respectively and the bolts 15 Y and 15 pierce openings in the plates 11 and 11 respectively, and the bars 10 and 10 respectively and also the slots 11 and 11 respectively. Thumb nuts 16 and 16 are 45 threaded on the bolts 15 and 15 respectively. The `free extremities ot the blades are beveled. y
Having thus described niy invention, what I clailn as new is:
A device of the class describedincluding a pair of hinged bars, a second pair otl bars slidable on the first pair of bars, means limiting the sliding ot' the bars in relation to one another and operable to hold the bars in different adjusted positions, plates on the second bars and extending over the iirst bars, a pair ot' blades, and adjustable pin and slot connections-between the blades and the second bars and the plates.
CHRIST A.v CHRISTIANSON.
US33073A 1925-05-26 1925-05-26 Stair square Expired - Lifetime US1624535A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US33073A US1624535A (en) 1925-05-26 1925-05-26 Stair square

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Application Number Priority Date Filing Date Title
US33073A US1624535A (en) 1925-05-26 1925-05-26 Stair square

Publications (1)

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US1624535A true US1624535A (en) 1927-04-12

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ID=21868414

Family Applications (1)

Application Number Title Priority Date Filing Date
US33073A Expired - Lifetime US1624535A (en) 1925-05-26 1925-05-26 Stair square

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3116558A (en) * 1958-06-26 1964-01-07 Ministerul Minelor Si En Elect Device designed for the study of the operation of electrical power systems
US4813149A (en) * 1987-12-01 1989-03-21 Herkimer Robert D Level device
US5323541A (en) * 1993-02-24 1994-06-28 Burnham Dwayne L Template for laying out a one-piece cover for a stair step
US6058617A (en) * 1997-12-31 2000-05-09 Nadu; Samuel Audio visual combination extension level
US10265843B2 (en) * 2016-04-14 2019-04-23 David Christopher Young Template device
US20220372769A1 (en) * 2021-05-18 2022-11-24 Robin Wachsmuth Templating Device
USD1008828S1 (en) * 2020-05-27 2023-12-26 Woodpeckers, Llc Stair tread marking gauge

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3116558A (en) * 1958-06-26 1964-01-07 Ministerul Minelor Si En Elect Device designed for the study of the operation of electrical power systems
US4813149A (en) * 1987-12-01 1989-03-21 Herkimer Robert D Level device
US5323541A (en) * 1993-02-24 1994-06-28 Burnham Dwayne L Template for laying out a one-piece cover for a stair step
US6058617A (en) * 1997-12-31 2000-05-09 Nadu; Samuel Audio visual combination extension level
US10265843B2 (en) * 2016-04-14 2019-04-23 David Christopher Young Template device
USD1008828S1 (en) * 2020-05-27 2023-12-26 Woodpeckers, Llc Stair tread marking gauge
US20220372769A1 (en) * 2021-05-18 2022-11-24 Robin Wachsmuth Templating Device
US11788303B2 (en) * 2021-05-18 2023-10-17 Robin Wachsmuth Templating device

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