I believe those are called 'T' hinges. The beauty of a but hinge is that it is countersunk into the edge of the door and the edge of the frame so much of the weight is born by that mechanical fixation and not the screws at all.
It is usual to drive a long screw from at least one hole in the top and bottom hinge right through the frame and into the building framing member. a two or three inch long screw. Often you will have shimmed the door frame vertical, do it at the hinge point and drive the longer screw through the shims into the building framing member to secure the door frame and the hinge vertical. They make hinge routing templates to use with a router. I have never owned one but I have made my own templates for routing a very accurate cut-out for the hinge. It makes locating them on the frame and the door more accurate as well. If you get a hinge template kit I would be very interested in hearing how you get along with it and how you like it. Those little trim routers are ideal for the job and I have seen Norm and Tom Silver use battery powered routers too. Although I have two routers I don't own either type. I would like to add both to my collection. T hinges and strap hinges do depend on the sheering force of the screws however the forces on them can easily slightly twist or bend them in my albeit limited experience. For some reason too, I find it difficult to center their pivot point consistently along the edge of the door and when you don't get it exactly right, the door doesn't work well.None of them seem to work well for long, even the ones someone else installs.Maybe the screws move sideways a little, I don't know. Obviously they are popular choices for a lot of people, there must be a reason for that. ----- Original Message ----- From: Max Robinson To: Blind Handyman Sent: Sunday, June 15, 2008 8:30 PM Subject: [BlindHandyMan] But hinges vs strap hinges. I've been thinking about this question of hinges for the doors to my shop. A standard but hinge has the counter sinks drilled so the plates of the hinge are between the two surfaces of the door and the frame as they come together. On a heavy door the screws in the top and center hinge are in tension which is usually not recommended. On a strap hinge which is mounted on the outside surface of the door and frame the screws are mostly in sheer which is the condition in which they are strongest. The hinges that were supplied with the lawn mower house kit and those used on the 3 foot wide shop built doors on the teddybear cottage are a kind of hybrid type looking like a strap hinge on one side of the pivot and a but hinge on the other. These are surface mounted like a strap hinge. Regards. Max. K 4 O D S. Email: [EMAIL PROTECTED] Transistor site http://www.funwithtransistors.net Vacuum tube site: http://www.funwithtubes.net Music site: http://www.maxsmusicplace.com To subscribe to the fun with tubes group send an email to, [EMAIL PROTECTED] ------------------------------------------------------------------------------ No virus found in this incoming message. Checked by AVG. Version: 7.5.524 / Virus Database: 270.3.0/1503 - Release Date: 6/14/2008 6:02 PM [Non-text portions of this message have been removed]
