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Publication numberUS1371619 A
Publication typeGrant
Publication dateMar 15, 1921
Filing dateFeb 16, 1920
Priority dateFeb 16, 1920
Publication numberUS 1371619 A, US 1371619A, US-A-1371619, US1371619 A, US1371619A
InventorsGreenstreet Milfred L
Original AssigneeBlocker Toy Mfg Company
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Toy building-block
US 1371619 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)




1 37 1,619. Patented Mar. 15, 1921.



speciilcation'of Letters Patent. Patented Mar. 15, 1921.

Application filed February 18, 1820. Serial H6. 858,906.

To all whom it may concern:

Be it known that I, MILFRED L. GREEN- srnnnr, a citizen of the United States, residing at Maplewood, Missouri, have invented a certain new and useful Improvement in Toy Building-Blocks, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompan ing drawings, forming part of this speci cation.

My invention relates generally to toys or playthings for children, and more particularly to toy building blocks, the principal object of my invention being to provide blocks that are constructed so that they are capable of being connected directly to each other, thereby simplifying and greatly facilitating the assembling of a number of the blocks and eliminating the necessity for extraneous connecting means.

My present invention'is an improvement upon the blocks disclosed in .Patent No. 1,294,446, issued to myself and my assignees February 18, 1919, and it is one of the objects" of this invention to generally improve upon and simplify the construction of the blocks disclosed in the aforesaid patent, and likewise to improve upon other similar types of toy building blocks.

Further objects of my invention are to provide toy building blocks which are capable of being easily and cheaply produced and to form the blocks so that they may be readily assembled or taken apart, and conseof the toy building blocks connected to each the same being preferably formed of wood or analogous material, and of any desired size and thickness. This block while preferably in the form of a true square, ma be formed so that its length is substantially greater than its width. However, for all practical purposes, I prefer to form the blocks square with a length and breadth of an inch and a half or two inches and with a thickness of approximately a quarter of an lnch. Other forms of blocks may be triangular in outline as illustrated in Fig. 2.

Formed in the edges of the blocks thus constructed are substantially rectangular notches 11, the depth of which is approximately equal to the thickness of the blocks, and these notches gradually taper in width so that they become narrower toward their inner ends.

In order that the blocks may be firmly interlocked with each other when assembled, the notches 11 are formed so that their width at a point approximately halfway between the outer edges of the blocks and the bottoms of the notches or the width on the line marked X, Fig. 4, is equal to the thick- 'ness of the blocks. By virtue of this construction, when two of the blocks are connected to each other by inserting'the notched edge of one block in a notch in the edge of another, and forcing said blocks toward each other with a slight pressure, portions of said blocks immediately adjacent to the inner ends. of said notches will be squeezed slightly, thereby. creating friction between the interchanged parts so as to firmly hold the blocks in their assembled positions. (See Fig. 5.) This tapering or gradual narrowing of the notches toward their inner ends enables the blocks to be readily assembled and firmly secured to each other even though said blocks var slightly in thickness due to inaccuracies o manufacture or as a result of slight shrinkage which may occur when the blocks become thoroughly ioy building blocks of my improved construction may be easily and cheaply proanimals, and the duced, are readily assembled or taken apart, do not require extraneous connecting or attaching members, are capable of being assembled so as to simulate various ob ects such as buildings, furniture, machmery 1ke, and consequently said blocks provide an entertaining and instructive toy for children.

It will be readily understood-that minor changes in the size, form construction of the various parts of my improved toy building blocks can'be made and substituted for those herein shown and descrlbed, without departing from the spirit of m inven tion, t appended claims.

- a claim:

1. Toy building blocks of substantially uniform thickness and having tapered e scope of which 1s set fort in'the notches in their edges ap roximately' as deep as the thickness of the locks, the bottoms of said notches beingsli htli narrower than the thickness of said 1oc s so that when one block is laced in the notch of another it will be he (1 tightly in position.

2. 'loy building uniform thickness and having notches in their edges approximate y as deep as the thickness of the locks, the bottoms of said notches being slightly narrower than the thickness of said blocks and the mouths of said notches being slightly wider than the thickness of the blocks so that when blocks of. substantially v -ta red oneblock is placed in the notch of another

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2607311 *Feb 19, 1948Aug 19, 1952Eagle Picher CoSolder bar
US2633662 *Oct 9, 1950Apr 7, 1953Nelson Walter OInterlocking block
US2635023 *Aug 18, 1948Apr 14, 1953Frye Helen VarnerConvertible furniture base
US3477167 *Apr 21, 1967Nov 11, 1969Ach ReneFigure shaped blocks with integral connectors
US4569665 *May 4, 1984Feb 11, 1986Timothy BeltonPlay building element
US4752269 *May 9, 1986Jun 21, 1988Jonathan FeinsteinReconfigurable, interchangeable and interlocking playthings, blocks or construction pieces
US7334575 *Jan 5, 2005Feb 26, 2008Mcpherson MathewBow limb fixation member
US8047189Nov 16, 2007Nov 1, 2011Mcpherson Mathew ALimb mounting system
US8408192Oct 28, 2011Apr 2, 2013Mcp Ip, LlcLimb mounting system
US8453635Oct 29, 2010Jun 4, 2013Mcp Ip, LlcBow limb retaining system
US8701644Jun 4, 2013Apr 22, 2014Mcp Ip, LlcBow limb retaining system
US9285180Apr 21, 2014Mar 15, 2016Mcp Ip, LlcBow limb retaining system
US9341430Sep 9, 2013May 17, 2016Mcp Ip. LlcSelf-aligning crossbow interface
US9644918Mar 14, 2016May 9, 2017Mcp Ip, LlcBow limb retaining system
US20050121012 *Jan 5, 2005Jun 9, 2005Mcpherson MathewBow limb fixation member
US20070182094 *May 23, 2005Aug 9, 2007Ki-Tae LeeSolid puzzle block
US20090004946 *Jun 11, 2008Jan 1, 2009ZinkotekInterlocking toy
US20150224415 *Apr 13, 2015Aug 13, 2015Maykah, Inc.Miniature customizable room building toy components
USD773414 *Apr 7, 2015Dec 6, 2016T3 Expo, LLCMagnet holder
USD783108Oct 16, 2015Apr 4, 2017Mcp Ip, LlcArchery limb cup
U.S. Classification446/124, D21/491
International ClassificationA63H33/06, A63H33/04
Cooperative ClassificationA63H33/06
European ClassificationA63H33/06