Improvements in Ratchet Braces or in Combination Tool Holders.
Year: 1891

page_text: Date of Application, 10th Feb., 1891-Accepted, 28th Mar., 1891
COMPLETE SPECIFICATION.
Improvements in Ratchet Braces or in Combination Tool Holders.
I, CHARLES HENRY MYERS, a citizen of the United States of America, residing
t Buffalo, County of Erie and State of New York, United States of America,
Ianufacturer, do hereby declare the nature of this invention, and in what manner
he same is to be performed, to be particularly described and ascertained in and
y the following statement :-
The invention relates to combination tools, and has for its object certain improve-
ents in construction which will be hereinafter described, and particularly pointed
ut in the claims.
the folowing statement
The invention relates to combination tools, and has for its object certain improve-
ments in construction which will be hereinafter described, and particularly pointed
out in the claims.
In the accompanying drawings which form part of this Specification,
Figure 1 represents a side elevation,
Figure 2 a similar view partly in section.
Figure 3 a vertical section.
Figure 4 a top plan view of the wrench and tool holder.
Figure 5 a side view of the tool holder provided with a screw-threaded shank.
Figure 6 an edge view of the same, and
Figure 7 a side view with the shank smooth.
Reference being had to the drawings and the letters thereon, A, indicates a
wrench, the front end or head of which is reduced in thickness and formed into an
annular disk a, through which is an aperture 1. B, indicates a head having an annular
collar or projection c, on its upper surface which extends through the aperture b,
in the head or disk a, and on each side of the head B, is a rebate d, which forms
a track or way for the jaws C, C, to slide upon. The jaws are moved toward and
from each other by a right and left hand screw D, which engages both jaws, and is
provided with a milled disk e, for turning the screw in either direction.
Upon the upper end of the collar c, is secured a ratchet wheel by screws 9, 9,
and in the shank or handle of the wrench is a dog h, the front end of which is
bevelled or angular, as shown in Figure 4, and engages with the notches or
recesses i, in the wheel f. The dog is reversible in the shank, and may be moved
hy the pin k, to either position for making the wrench work right or left, by
moving the pin k through the slot I, across the shank and turning the dog on its
axis to change the position of its inclined end to slide over the ratchet teeth in the
wheel. The dog is held in contact with the teeth on the ratchet wheel by a
spring m, which encircles the rear end of the dog.
E, indicates a tool-holder for holding any kind of boring-bit, for boring metal or
wood, as shown in Figure 1, or a screw driver-bit as shown in Figure 2, and is
provided with a head n, having a recess or socket o. to receive the upper end of a
tool, such as described. The shank of the tool-holder is flattened at p, p, in planes
which coincide with the jaws C, C, and is provided with shoulders 9, 9, with which
the lower ends of the jaws engage, shoulders r, r, with which the upper ends of the
jaws engage, a shoulder s which fits under one side of the head B, and a recess t,
for the disk e, of the screw D, to revolve in.
The upper and cylindrical portion of the shank projects through the head of
the wrench and is screw-threaded, and upon said screw-thread works an internally
screw-threaded sleeve or nut F, which is provided with a centre-pin t, at its
upper end for engaging with a clamp commonly used for drilling. This sleeve
forms an effectual feed for the boring-tool when used for drilling metal.
When it is desired to bore wood or other soft material, the sleeve F, is removed,
and the sleeve or handle G, substituted. This sleeve or handle is provided with
a socket w, which surrounds the cylindrical portion of the shank of the tool-
holder, and is held by one hand of the workman while he swings the handle of the
D

page_text: wrench with his other hand. The portion of the tool-holder may be smooth
as shown in Figure 7, when the tool is to be used only for boring soft material,
and the boring tool may be secured in the holder by a thumb screw y, if desired.
By the construction shown a very cheap, simple, convenient and effective
implement is produced, which is capable of performing all the functions of a
ratchet-wrench,.a ratchet-drill, a boring-tool, or a screw-driver, and can be operated
by unskilled labour.
Having now particularly described and ascertained the nature of said inven-
tion, and in what. manner the same is to be performed, I declare that what I
claim is :-
:-
1. A wrench having an aperture in its head and provided with sliding jaws, in
combination with a tool-holder having flattened sides with which said jaws engage
. and a cylindrical shank projecting through the head of the wrench.
2. A wrench having an aperture in its head and provided with sliding jaws, in
combination with a tool-holder having flattened sides and shoulders with which said
jaws engage, a cylindrical shank projecting through the head of the wrench and a
sleeve engaging said shank.
3. A wrench having an aperture in its head and provided with sliding jaws, in
combination with a tool-holder passing through the head of the wrench and having
flattened sides with which said jaws engage, a cylindrical screw-threaded shank and
an internally screw-threaded feed sleeve or nut.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.